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Xu T, Hong A, Zhang X, Xu Y, Wang T, Zheng Q, Wei T, He Q, Ren Z, Qin T. Preparation and adjuvanticity against PCV 2 of Viola philippica polysaccharide loaded in Chitosan-Gold nanoparticle. Vaccine 2024; 42:2608-2620. [PMID: 38472066 DOI: 10.1016/j.vaccine.2024.03.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2023] [Revised: 02/26/2024] [Accepted: 03/04/2024] [Indexed: 03/14/2024]
Abstract
The present Porcine circovirus type 2 virus (PCV2) vaccine adjuvants suffer from numerous limitations, such as adverse effects, deficient cell-mediated immune responses, and inadequate antibody production. In this study, we explored the potential of a novel nanoparticle (CS-Au NPs) based on gold nanoparticles (Au NPs) and chitosan (CS) that modified Viola philippica polysaccharide (VPP) as efficient adjuvants for PCV2 vaccine. The characterization demonstrated that CS-Au-VPP NPs had a mean particle size of 507.42 nm and a zeta potential value of -21.93 mV. CS-Au-VPP NPs also exhibited good dispersion and a stable structure, which did not alter the polysaccharide properties. Additionally, the CS-Au-VPP NPs showed easy absorption and utilization by the organism. To investigate their immune-enhancing potential, mice were immunized with a mixture of CS-Au-VPP NPs and PCV2 vaccine. The evaluation of relevant immunological indicators, including specific IgG antibodies and their subclasses, cytokines, and T cell subpopulations, confirmed their immune-boosting effects. The in vivo experiments revealed that the medium-dose CS-Au-VPP NPs significantly elevated the levels of specific IgG antibodies and their subclasses, cytokines, and T cell subpopulations in PCV2-immunized mice. These findings suggest that CS-Au-VPP NPs can serve as a promising vaccine adjuvant due to their stable structure and immunoenhancement capabilities.
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Affiliation(s)
- Ting Xu
- Key Laboratory of Traditional Chinese Veterinary Medicine and Animal Health in Fujian Province, College of Animal Sciences, Fujian Agriculture and Forestry University, Fuzhou 350002, PR China
| | - Ancan Hong
- Key Laboratory of Traditional Chinese Veterinary Medicine and Animal Health in Fujian Province, College of Animal Sciences, Fujian Agriculture and Forestry University, Fuzhou 350002, PR China
| | - Xueli Zhang
- Fujian Key Laboratory of Chinese Traditional and Western Veterinary Medicine and Animal Health, College of Animal Sciences, Fujian Agriculture and Forestry University, Fuzhou 350002, PR China
| | - Yizhou Xu
- Fujian Key Laboratory of Chinese Traditional and Western Veterinary Medicine and Animal Health, College of Animal Sciences, Fujian Agriculture and Forestry University, Fuzhou 350002, PR China
| | - Tao Wang
- Key Laboratory of Traditional Chinese Veterinary Medicine and Animal Health in Fujian Province, College of Animal Sciences, Fujian Agriculture and Forestry University, Fuzhou 350002, PR China
| | - Qiang Zheng
- Key Laboratory of Traditional Chinese Veterinary Medicine and Animal Health in Fujian Province, College of Animal Sciences, Fujian Agriculture and Forestry University, Fuzhou 350002, PR China
| | - Tiantian Wei
- Fujian Key Laboratory of Chinese Traditional and Western Veterinary Medicine and Animal Health, College of Animal Sciences, Fujian Agriculture and Forestry University, Fuzhou 350002, PR China
| | - Qiuyue He
- Key Laboratory of Traditional Chinese Veterinary Medicine and Animal Health in Fujian Province, College of Animal Sciences, Fujian Agriculture and Forestry University, Fuzhou 350002, PR China
| | - Zhe Ren
- Key Laboratory of Traditional Chinese Veterinary Medicine and Animal Health in Fujian Province, College of Animal Sciences, Fujian Agriculture and Forestry University, Fuzhou 350002, PR China.
| | - Tao Qin
- Key Laboratory of Traditional Chinese Veterinary Medicine and Animal Health in Fujian Province, College of Animal Sciences, Fujian Agriculture and Forestry University, Fuzhou 350002, PR China.
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2
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Yang MH, Yang Y, Zhou X, Chen HG. Advances in polysaccharides of natural source of anti-diabetes effect and mechanism. Mol Biol Rep 2024; 51:101. [PMID: 38217792 DOI: 10.1007/s11033-023-09081-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2023] [Accepted: 11/29/2023] [Indexed: 01/15/2024]
Abstract
PURPOSE Diabetes is a chronic disease in metabolic disorder, and the pathology is characterized by insulin resistance and insulin secretion disorder in blood. In current, many studies have revealed that polysaccharides extracted from natural sources with significant anti-diabetic effects. Natural polysaccharides can ameliorate diabetes through different action mechanisms. All these polysaccharides are expected to have an important role in the clinic. METHODS Existing polysaccharides for the treatment of diabetes are reviewed, and the mechanism of polysaccharides in the treatment of diabetes and its structural characteristics are described in detail. RESULTS This article introduced the natural polysaccharide through different mechanisms of action in the treatment of diabetes, including oxidative stress, apoptosis, inflammatory response and regulation of intestinal bacteria. Natural polysaccharides can treat of diabetes by regulating signaling pathways is also a research hotspot. In addition, the structural characteristics of polysaccharides were explored. There are some structure-activity relationships between natural polysaccharides and the treatment of diabetes.
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Affiliation(s)
- Mao-Hui Yang
- Key Laboratory for Information System of Mountainous Areas and Protection of Ecological Environment, Guizhou Normal University, Guiyang, 550001, China
- Guizhou Engineering Laboratory for Quality Control & Evaluation Technology of Medicine, Guizhou Normal University, Guiyang, 550001, China
| | - Yan Yang
- Key Laboratory for Information System of Mountainous Areas and Protection of Ecological Environment, Guizhou Normal University, Guiyang, 550001, China
- Guizhou Engineering Laboratory for Quality Control & Evaluation Technology of Medicine, Guizhou Normal University, Guiyang, 550001, China
| | - Xin Zhou
- Key Laboratory for Information System of Mountainous Areas and Protection of Ecological Environment, Guizhou Normal University, Guiyang, 550001, China
- Guizhou Engineering Laboratory for Quality Control & Evaluation Technology of Medicine, Guizhou Normal University, Guiyang, 550001, China
| | - Hua-Guo Chen
- Key Laboratory for Information System of Mountainous Areas and Protection of Ecological Environment, Guizhou Normal University, Guiyang, 550001, China.
- Guizhou Engineering Laboratory for Quality Control & Evaluation Technology of Medicine, Guizhou Normal University, Guiyang, 550001, China.
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3
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Li Z, Wang M, Yang Z. Structural characterization, anti-tumor and immunomodulatory activity of intracellular polysaccharide from Armillaria luteo-virens. Carbohydr Res 2023; 534:108945. [PMID: 37738818 DOI: 10.1016/j.carres.2023.108945] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2022] [Revised: 07/28/2023] [Accepted: 09/15/2023] [Indexed: 09/24/2023]
Abstract
Armillaria luteo-virens (A. luteo-virens) is a kind of edible fungus mainly exists in Qinghai-Tibet of China, but at present only very few studies focus on the bioactivities of its polysaccharides. This study aimed to purify and characterize the structure features of a novel intracellular polysaccharide (ALP-A) derived from A. luteo-virens and explore its potential anti-tumor and immunomodulatory activities. Through systematic separation and purification, we obtained a homogeneous ALP-A with an average molecular weight of 23693Da. Structural analysis indicated that ALP-A was mainly composed of glucose and mannose with a molar ratio of 6.02:1. The repeating unit of ALP-A was →4) -α-D-Glcp-(1→ backbone with α-Glcp-(1→ and α-Manp-(6→ side chains which branched at O-2 position. The anti-tumor assays in vivo suggested that ALP-A could effectively restrain S180 solid tumor growth, protect immune organs and promote the secretion of cytokines (IL2, IL6 and TNF-α) in serum. Besides, in vitro immunomodulatory assays indicated that ALP-A could improve proliferation, phagocytic capacity and raise the level of NO and cytokines in Raw264.7 cells. These results demonstrate that ALP-A which possess potential antitumor and immunomodulatory abilities can be developed as a new functional food.
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Affiliation(s)
- Zhang Li
- Laboratory of Molecular Oncology, Frontiers Science Center for Disease-related Molecular Network, West China Hospital, Sichuan University, Chengdu, 610064, China
| | - Miao Wang
- Laboratory Animal Center, West China School of Basic Medical Science & Forensic Medicine, Sichuan University, Chengdu, 610041, China.
| | - Zhirong Yang
- Key Laboratory of Biological Resource and Ecological Environment of the Ministry of Education, College of Life Sciences, Sichuan University, Chengdu, 610064, China
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4
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Chen W, Guo Q, Zhang Y, Liu Q, Zhang Y, Zhao C, Li X, Bai X, Zhang L, Shao S. Nocardia rubra cell wall skeleton regulates tumour-associated macrophage polarization by reprogramming M2 macrophages into M1 macrophages via STAT1/STAT6 pathways. Scand J Immunol 2023; 98:e13320. [PMID: 38441254 DOI: 10.1111/sji.13320] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2022] [Revised: 06/08/2023] [Accepted: 07/31/2023] [Indexed: 03/07/2024]
Abstract
Targeted therapy with tumour-associated macrophages (TAMs) has emerged as a new paradigm for immunotherapy of cervical cancer. Nocardia rubra cell wall skeleton (Nr-CWS) for external use is an immunotherapeutic agent. In this study, we aimed to explore the effects of Nr-CWS on TAMs and the potential mechanisms. Cervical tissue samples were collected before and after Nr-CWS treatment from patients with high-risk HPV infection and cervical intraepithelial neoplasia (CIN). The effect of Nr-CWS on macrophages in vivo was examined by immunohistochemistry and double-labeling immunofluorescence histochemistry. In vitro experiments were performed using a TAM model established by THP-1 cells under Nr-CWS treatment. We found that Nr-CWS treatment significantly reduced the numbers of total macrophages and M2 macrophages, increased the proportion of M1 macrophages and decreased the proportion of M2 macrophages in cervical tissues. After Nr-CWS treatment in vitro, the expression levels of the M1 macrophage markers were increased, while the expression levels of the M2 macrophage markers were decreased. Nr-CWS treatment also activated STAT1 pathways but inhibited STAT6 pathways. These results indicated that Nr-CWS may improve local immune response and reverse immunosuppression by regulating the M2 to M1 polarization of TAMs via STAT1/STAT6 pathways.
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Affiliation(s)
- Wei Chen
- Department of Histology and Embryology, Hebei Medical University, Shijiazhuang, China
| | - Qianyu Guo
- Department of Histology and Embryology, Hebei Medical University, Shijiazhuang, China
| | - Yi Zhang
- New Drug R&D Center, Liaoning Tianan Bio-Pharmaceutical Co., Ltd., Benxi, China
| | - Qianwen Liu
- Department of Histology and Embryology, Hebei Medical University, Shijiazhuang, China
| | - Yanan Zhang
- Department of Histology and Embryology, Hebei Medical University, Shijiazhuang, China
| | - Chunfang Zhao
- Department of Histology and Embryology, Hebei Medical University, Shijiazhuang, China
| | - Xuehui Li
- Department of Gynaecology, The First Hospital of Hebei Medical University, Shijiazhuang, China
| | - Xue Bai
- Department of Gynaecology, The Fourth Hospital of Hebei Medical University, Shijiazhuang, China
| | - Lei Zhang
- Department of Histology and Embryology, Hebei Medical University, Shijiazhuang, China
| | - Suxia Shao
- Department of Histology and Embryology, Hebei Medical University, Shijiazhuang, China
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5
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Tang C, Wang Y, Chen D, Zhang M, Xu J, Xu C, Liu J, Kan J, Jin C. Natural polysaccharides protect against diet-induced obesity by improving lipid metabolism and regulating the immune system. Food Res Int 2023; 172:113192. [PMID: 37689942 DOI: 10.1016/j.foodres.2023.113192] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2023] [Revised: 06/25/2023] [Accepted: 06/27/2023] [Indexed: 09/11/2023]
Abstract
Unhealthy dietary patterns-induced obesity and obesity-related complications pose a great threat to human health all over the world. Accumulating evidence suggests that the pathophysiology of obesity and obesity-associated metabolic disorders is closely associated with dysregulation of lipid and energy metabolism, and metabolic inflammation. In this review, three potential anti-obesity mechanisms of natural polysaccharides are introduced. Firstly, natural polysaccharides protect against diet-induced obesity directly by improving lipid and cholesterol metabolism. Since the immunity also affects lipid and energy metabolism, natural polysaccharides improve lipid and energy metabolism by regulating host immunity. Moreover, diet-induced mitochondrial dysfunction, prolonged endoplasmic reticulum stress, defective autophagy and microbial dysbiosis can disrupt lipid and/or energy metabolism in a direct and/or inflammation-induced manner. Therefore, natural polysaccharides also improve lipid and energy metabolism and suppress inflammation by alleviating mitochondrial dysfunction and endoplasmic reticulum stress, promoting autophagy and regulating gut microbiota composition. Specifically, this review comprehensively summarizes underlying anti-obesity mechanisms of natural polysaccharides and provides a theoretical basis for the development of functional foods. For the first time, this review elucidates anti-obesity mechanisms of natural polysaccharides from the perspectives of their hypolipidemic, energy-regulating and immune-regulating mechanisms.
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Affiliation(s)
- Chao Tang
- College of Food Science and Engineering, Yangzhou University, Yangzhou 225127, Jiangsu, China
| | - Yuxin Wang
- College of Food Science and Engineering, Yangzhou University, Yangzhou 225127, Jiangsu, China
| | - Dan Chen
- College of Food Science and Engineering, Yangzhou University, Yangzhou 225127, Jiangsu, China
| | - Man Zhang
- College of Food Science and Engineering, Yangzhou University, Yangzhou 225127, Jiangsu, China
| | - Jingguo Xu
- College of Food Science and Engineering, Yangzhou University, Yangzhou 225127, Jiangsu, China
| | - Chen Xu
- Nanjing Key Laboratory of Quality and safety of agricultural product, Nanjing Xiaozhuang University, Nanjing 211171, China.
| | - Jun Liu
- College of Food Science and Engineering, Yangzhou University, Yangzhou 225127, Jiangsu, China
| | - Juan Kan
- College of Food Science and Engineering, Yangzhou University, Yangzhou 225127, Jiangsu, China
| | - Changhai Jin
- College of Food Science and Engineering, Yangzhou University, Yangzhou 225127, Jiangsu, China
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Xiang W, Li K, Dong F, Zhang Y, Zeng Q, Jiang L, Zhang D, Huang Y, Xiao L, Zhang Z, Zhang C. Development of a multicriteria decision-making model for evaluating hybrid offspring in the sweetpotato ( Ipomoea batatas L.) breeding process. BREEDING SCIENCE 2023; 73:246-260. [PMID: 37840976 PMCID: PMC10570886 DOI: 10.1270/jsbbs.22096] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/06/2022] [Accepted: 02/13/2023] [Indexed: 10/17/2023]
Abstract
Sweetpotato variety breeding is always a long process. Screening of hybrid offspring is dominated by empirical judgment in this process. Data analysis and decision fatigue have been troubling breeders. In recent years, the low-efficiency screening mode has been unable to meet the requirements of sweetpotato germplasm innovation. Therefore, it is necessary to construct a high-efficiency method that can screen germplasms for different usages, for mining elite genotypes, and to create dedicated sweetpotato varieties. In this article, the multicriteria decision-making (MCDM) model was constructed based on six agronomic traits, including fresh root yield, vine length, vine diameter, branch number, root number and the spatial distribution of storage roots, and five quality traits, including dry matter content, marketable root yield, uniformity of roots, starch content and the edible quality score. Among these, the edible quality score was calculated by using fuzzy comprehensive evaluation to integrate the sensory scores of color, odor, sweetness, stickiness and fibrous taste. The MCDM model was compared with the traditional screening method via an evaluation in 25 sweetpotato materials. The interference of subjective factors on the evaluation results was significantly reduced. The MCDM model is more overall, more accurate and faster than the traditional screening method in the selection of elite sweetpotato materials. It could be programmed to serve the breeders in combination with the traditional screening method.
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Affiliation(s)
- Wei Xiang
- Crop Research Institute, Hunan Academy of Agricultural Sciences, Changsha 410125, Hunan, PR China
| | - Kailong Li
- Plant Protection Institute, Hunan Academy of Agricultural Sciences, Changsha 410125, Hunan, PR China
| | - Fang Dong
- Crop Research Institute, Hunan Academy of Agricultural Sciences, Changsha 410125, Hunan, PR China
| | - Ya Zhang
- Crop Research Institute, Hunan Academy of Agricultural Sciences, Changsha 410125, Hunan, PR China
| | - Qiang Zeng
- Crop Research Institute, Hunan Academy of Agricultural Sciences, Changsha 410125, Hunan, PR China
| | - Ling Jiang
- Crop Research Institute, Hunan Academy of Agricultural Sciences, Changsha 410125, Hunan, PR China
| | - Daowei Zhang
- Crop Research Institute, Hunan Academy of Agricultural Sciences, Changsha 410125, Hunan, PR China
| | - Yanlan Huang
- Crop Research Institute, Hunan Academy of Agricultural Sciences, Changsha 410125, Hunan, PR China
| | - Liang Xiao
- College of Bioscience and Biotechnology, Hunan Agricultural University, Changsha 410128, Hunan, PR China
| | - Zhuo Zhang
- Plant Protection Institute, Hunan Academy of Agricultural Sciences, Changsha 410125, Hunan, PR China
| | - Chaofan Zhang
- Crop Research Institute, Hunan Academy of Agricultural Sciences, Changsha 410125, Hunan, PR China
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7
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Li C, Feng Y, Li J, Lian R, Qin L, Wang C. Extraction, purification, structural characterization, and hepatoprotective effect of the polysaccharide from purple sweet potato. JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2023; 103:2196-2206. [PMID: 36168747 DOI: 10.1002/jsfa.12239] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/15/2022] [Revised: 09/19/2022] [Accepted: 09/28/2022] [Indexed: 06/16/2023]
Abstract
BACKGROUND Purple sweet potato Ipomoea batatas (L.) has long been used as a medicine and a food. It contains various bioactive substances such as polysaccharides, anthocyanins, and flavonoids. Purple sweet potato polysaccharides are known to have anti-oxidant, anti-tumor, and immunomodulatory functions. Nevertheless, studies on the structural characterization of purple sweet potato polysaccharides and their ability to prevent non-alcoholic fatty liver disease (NAFLD) have rarely been reported. RESULTS A novel polysaccharide (PSPP-A) was extracted and isolated from purple sweet potato, and its structural characteristics and preventive effects on NAFLD were investigated. The results indicated that PSPP-A was composed of l-rhamnose, d-arabinose, d-galactose, d-glucose, and d-glucuronic acid with molar ratios of 1.89:8.45:1.95:1.13:1. Its molecular weight was 2.63 × 103 kDa. Methylation and nuclear magnetic resonance (NMR) analysis indicated that the glycosidic linkages were →3)-α-L-Araf-(1→, α-L-Araf-(1→, →2,4)-α-L-Rhap-(1→, 4-O-Me-β-D-GlcAp-(1→, →4)-α-D-Glcp-(1→, →4)-β-D-Galp-(1→, and →6)-β-D-Galp-(1→. Scanning electron microscopy (SEM) indicated that the structure of PSPP-A was irregular. Subsequently, the protective effect of PSPP-A on NAFLD was investigated. The results indicated that bodyweight, liver index, and triglyceride (TG), total cholesterol (TC), aspartate transaminase (AST), and alanine transaminase (ALT) content were significantly reduced by intervention of purple sweet potato polysaccharide-A (PSPP-A) compared with the - high-fat diet group. Liver histopathological analysis indicated that PSPP-A attenuated irregular hepatocyte patterns and excessive lipid vacuoles. CONCLUSIONS The novel polysaccharide, PSPP-A, mainly contains arabinose, which has certain preventive effects on NAFLD. This study provides a theoretical basis for further elucidating the hepatoprotective effect of purple sweet potatoes as a functional food. © 2022 Society of Chemical Industry.
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Affiliation(s)
- Chenjing Li
- State Key Laboratory of Food Nutrition and Safety, Key Laboratory of Food Nutrition and Safety, Ministry of Education, College of Food Engineering and Biotechnology, Tianjin University of Science and Technology, Tianjin, China
| | - Yihua Feng
- State Key Laboratory of Food Nutrition and Safety, Key Laboratory of Food Nutrition and Safety, Ministry of Education, College of Food Engineering and Biotechnology, Tianjin University of Science and Technology, Tianjin, China
| | - Jingyao Li
- State Key Laboratory of Food Nutrition and Safety, Key Laboratory of Food Nutrition and Safety, Ministry of Education, College of Food Engineering and Biotechnology, Tianjin University of Science and Technology, Tianjin, China
| | - Rui Lian
- State Key Laboratory of Food Nutrition and Safety, Key Laboratory of Food Nutrition and Safety, Ministry of Education, College of Food Engineering and Biotechnology, Tianjin University of Science and Technology, Tianjin, China
| | - Liehao Qin
- State Key Laboratory of Food Nutrition and Safety, Key Laboratory of Food Nutrition and Safety, Ministry of Education, College of Food Engineering and Biotechnology, Tianjin University of Science and Technology, Tianjin, China
| | - Chunling Wang
- State Key Laboratory of Food Nutrition and Safety, Key Laboratory of Food Nutrition and Safety, Ministry of Education, College of Food Engineering and Biotechnology, Tianjin University of Science and Technology, Tianjin, China
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8
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Tian J, Zhao X, Tang C, Wang X, Zhang X, Xiao L, Li W. Protective effect of Paecilomyces cicadae TJJ11213 exopolysaccharide on intestinal mucosa and regulation of gut microbiota in immunosuppressed mice. Food Res Int 2023; 165:112477. [PMID: 36869490 DOI: 10.1016/j.foodres.2023.112477] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2022] [Revised: 12/26/2022] [Accepted: 01/09/2023] [Indexed: 01/13/2023]
Abstract
The exopolysaccharide (EPS) form Paecilomyces cicadae TJJ1213 possessed immunomodulatory activity in vitro, but whether it could regulate the immune system and intestinal microbiota in vivo remained unknown. In this study, the cyclophosphamide (CTX)-induced immunosuppressive mouse model was established to explore the immunomodulatory activity of EPS. Results showed that EPS could increase the immune organ indices, promote the secretion of serum immunoglobulins and up-regulate the expression of cytokines. Additionally, EPS could repair CTX-induced intestinal injury by increasing the expression of tight junction proteins and promoting the production of short-chain fatty acids. Moreover, EPS could remarkably enhance immunity through TLR4/MyD88/NF-κB and mitogen-activated protein kinase (MAPK) signaling pathways. Furthermore, EPS regulated intestinal microbiota by increasing the abundance of beneficial bacteria (Muribaculaceae, Lachnospiraceae NK4A136, Bacteroides, Odoribacter) and reducing the level of harmful bacteria (Alistipes, Helicobacter). In conclusion, our study suggested that EPS had the abilities to enhance immunity, restore intestinal mucosal injury and modulate intestinal microbiota, and may serve as a potential prebiotic to maintain health in the future.
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Affiliation(s)
- Juanjuan Tian
- College of Food Science and Technology, Nanjing Agricultural University, Nanjing, Jiangsu 210095, PR China; College of Tea and Food Science Technology, Jiangsu Vocational College of Agriculture and Forestry, Jurong, Jiangsu 212400, PR China
| | - Xiaogan Zhao
- College of Food Science and Technology, Nanjing Agricultural University, Nanjing, Jiangsu 210095, PR China
| | - Chao Tang
- College of Food Science and Technology, Nanjing Agricultural University, Nanjing, Jiangsu 210095, PR China
| | - Xiaomeng Wang
- College of Food Science and Technology, Nanjing Agricultural University, Nanjing, Jiangsu 210095, PR China
| | - Xueliang Zhang
- College of Food Science and Technology, Nanjing Agricultural University, Nanjing, Jiangsu 210095, PR China
| | - Luyao Xiao
- College of Food Science and Technology, Nanjing Agricultural University, Nanjing, Jiangsu 210095, PR China
| | - Wei Li
- College of Food Science and Technology, Nanjing Agricultural University, Nanjing, Jiangsu 210095, PR China.
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Meng M, Sun Y, Qi Y, Xu J, Sun J, Bai Y, Han L, Han R, Hou L, Sun H. Structural characterization and induction of tumor cell apoptosis of polysaccharide from purple sweet potato (Ipomoea batatas (L.) Lam). Int J Biol Macromol 2023; 235:123799. [PMID: 36828088 DOI: 10.1016/j.ijbiomac.2023.123799] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2022] [Revised: 02/08/2023] [Accepted: 02/18/2023] [Indexed: 02/25/2023]
Abstract
The carbohydrate is the main ingredient of purple sweet potato. A polysaccharide, named PSP, was separated and purified from purple sweet potato by extraction with hot water, precipitation with ethanol, deproteinization with Sevag reagent and column chromatography with Sephadex G-100. The purity and structure were studied with HPLC, UV-Vis, GC-MS and NMR. The PSP is a neutral polysaccharide with Mw of 470 kDa. The monosaccharide composition of PSP contained D-xylose, d-glucose, D-galactose with ratio of 1.0: 8.3: 1.3. The backbone of PSP was composed of the residues of →6)-D-Glcp-(1 → and →2, 6)-D-Glcp-(1→. The branches of PSP contained the residues of →3)-D-Galp-(1→, and D-Xylp-(1→. The antitumor activity in vitro of PSP was analyzed with HT-29 cells. And the SEM, AO staining, MDC staining and hoechst 33342 staining were performed to study the effect on apoptosis of HT-29 cells by PSP. The results revealed that the PSP can significantly inhibit the proliferation of HT-29 cells from induction apoptosis. The manuscript provided valuable knowledges on structural characteristics of the polysaccharides from purple sweet potato.
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Affiliation(s)
- Meng Meng
- State Key Laboratory of Food Nutrition and Safety, Key Laboratory of Food Nutrition and Safety, Ministry of Education, College of Food Science and Engineering, Tianjin University of Science and Technology, No. 29, 13th Avenue, Tianjin Economy Technological Development Area, Tianjin 300457, China
| | - Ying Sun
- State Key Laboratory of Food Nutrition and Safety, Key Laboratory of Food Nutrition and Safety, Ministry of Education, College of Food Science and Engineering, Tianjin University of Science and Technology, No. 29, 13th Avenue, Tianjin Economy Technological Development Area, Tianjin 300457, China
| | - Yanlong Qi
- Synthetical Test Site of Xinjiang Academy of Agricultural Sciences, No. 1, Xiaokang Road, New Urban District, Urumqi 830000, China
| | - Jin Xu
- State Key Laboratory of Food Nutrition and Safety, Key Laboratory of Food Nutrition and Safety, Ministry of Education, College of Food Science and Engineering, Tianjin University of Science and Technology, No. 29, 13th Avenue, Tianjin Economy Technological Development Area, Tianjin 300457, China
| | - Jingge Sun
- State Key Laboratory of Food Nutrition and Safety, Key Laboratory of Food Nutrition and Safety, Ministry of Education, College of Food Science and Engineering, Tianjin University of Science and Technology, No. 29, 13th Avenue, Tianjin Economy Technological Development Area, Tianjin 300457, China
| | - Yuhe Bai
- State Key Laboratory of Food Nutrition and Safety, Key Laboratory of Food Nutrition and Safety, Ministry of Education, College of Food Science and Engineering, Tianjin University of Science and Technology, No. 29, 13th Avenue, Tianjin Economy Technological Development Area, Tianjin 300457, China
| | - Lirong Han
- Key Laboratory of Public Health Safety of Hebei Province, Ministry of Education & College of Public Health, Hebei University, Baoding 071002, China
| | - Ran Han
- State Key Laboratory of Food Nutrition and Safety, Key Laboratory of Food Nutrition and Safety, Ministry of Education, College of Food Science and Engineering, Tianjin University of Science and Technology, No. 29, 13th Avenue, Tianjin Economy Technological Development Area, Tianjin 300457, China
| | - Lihua Hou
- State Key Laboratory of Food Nutrition and Safety, Key Laboratory of Food Nutrition and Safety, Ministry of Education, College of Food Science and Engineering, Tianjin University of Science and Technology, No. 29, 13th Avenue, Tianjin Economy Technological Development Area, Tianjin 300457, China
| | - Huiqing Sun
- State Key Laboratory of Food Nutrition and Safety, Key Laboratory of Food Nutrition and Safety, Ministry of Education, College of Food Science and Engineering, Tianjin University of Science and Technology, No. 29, 13th Avenue, Tianjin Economy Technological Development Area, Tianjin 300457, China.
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10
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Insight into the structural and immunomodulatory relationships of polysaccharides from Dendrobium officinale-an in vivo study. Food Hydrocoll 2023. [DOI: 10.1016/j.foodhyd.2023.108560] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
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11
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Cao TQ, An HX, Ma RJ, Dai KY, Ji HY, Liu AJ, Zhou JP. Structural characteristics of a low molecular weight velvet antler protein and the anti-tumor activity on S180 tumor-bearing mice. Bioorg Chem 2023; 131:106304. [PMID: 36463590 DOI: 10.1016/j.bioorg.2022.106304] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2022] [Revised: 11/11/2022] [Accepted: 11/24/2022] [Indexed: 11/29/2022]
Abstract
Velvet antler is a traditional Chinese medicine with various pharmacological values, which is an important raw material for traditional Chinese medicinal wine. Nevertheless, the chemical compositions and bioactivities of velvet antler residue used for making medicinal wine are rarely reported, leading to a waste of resources. In this study, a velvet antler protein (VA-pro) was extracted from velvet antler residue by simulating the gastrointestinal digestion, and its composition, structural characteristics and in vivo anti-tumor activities were determined and investigated. VA-pro possessed high purity with a relatively low molecular weight as 22.589 kDa under HPLC, one- and two-dimensional electrophoresis, and it contained high contents of Pro, Gly, Glu and Ala. Besides, the secondary structure of VA-pro was dominated by β-turn and β-sheet, and VA-pro possessed similar protein sequence, isoelectric point and amino acid compositions to hypothetical protein G4228_020061. The in vivo results substantiated that VA-pro could improve the body weights and immune organ indices, increase the expressions of sera cytokines and regulate the distributions of T and B lymphocytes subsets in peripheral blood of S180 tumor-bearing mice. Furthermore, VA-pro could effectively inhibit solid S180 tumors growth by inducing S phase cell cycle arrest mediated through mitochondria. To summarize, our study provided theoretical support that VA-pro had the potential to be used as an immunopotentiator in immunocompromised or cancer-bearing hosts.
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Affiliation(s)
- Tian-Qi Cao
- College of Food Science and Engineering, Tianjin University of Science and Technology, Tianjin 300457, China
| | - Hui-Xian An
- College of Food Science and Engineering, Tianjin University of Science and Technology, Tianjin 300457, China
| | - Rong-Jie Ma
- College of Food Science and Engineering, Tianjin University of Science and Technology, Tianjin 300457, China
| | - Ke-Yao Dai
- College of Food Science and Engineering, Tianjin University of Science and Technology, Tianjin 300457, China
| | - Hai-Yu Ji
- College of Life Sciences, Yantai University, Yantai, Shandong 264005, China
| | - An-Jun Liu
- College of Food Science and Engineering, Tianjin University of Science and Technology, Tianjin 300457, China.
| | - Jia-Ping Zhou
- College of Food Science and Engineering, Tianjin University of Science and Technology, Tianjin 300457, China.
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12
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Liu JP, Wang J, Zhou SX, Huang DC, Qi GH, Chen GT. Ginger polysaccharides enhance intestinal immunity by modulating gut microbiota in cyclophosphamide-induced immunosuppressed mice. Int J Biol Macromol 2022; 223:1308-1319. [PMID: 36395935 DOI: 10.1016/j.ijbiomac.2022.11.104] [Citation(s) in RCA: 20] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2022] [Revised: 11/10/2022] [Accepted: 11/10/2022] [Indexed: 11/16/2022]
Abstract
In this study, the immunity-enhancing effect of ginger polysaccharides UGP1 and UGP2 on CTX-induced immunosuppressed mice was evaluated. The results showed that ginger polysaccharide could effectively alleviate the symptoms of weight loss and dietary intake reduction induced by CTX, increase fecal water content, reduce fecal pH, and protect immune organs of immunosuppressed mice. In addition, ginger polysaccharides also stimulated the secretion of cytokines IL-2, IL-4, TNF-α and immunoglobulin Ig-G in the serum of mice, increased the expression of Occludin and Claudin-1, and restored the level of short-chain fatty acids in the intestine to improve immune deficiency. Furthermore, ginger polysaccharides significantly reduced the relative abundance ratio of the Firmicutes and Bacteroidetes in mice and increased the relative abundance of Verrucomicrobia and Bacteroidetes at the phylum level. At the family level, ginger polysaccharides increased the relative abundance of beneficial bacteria such as Muribaculaceae, Bacteroidaceae and Lactobacillaceae, and decreased the relative abundance of harmful bacteria such as Rikenellaceae and Lachnospiraceae. Spearman correlation analysis indicated that ginger polysaccharides could enhance intestinal immunity by modulating gut microbiota associated with immune function. These results indicated that ginger polysaccharides have the potential to be a functional food ingredients or a natural medicine for the treatment of intestinal barrier injury.
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Affiliation(s)
- Jun-Ping Liu
- College of Engineering/National R&D Center for Chinese Herbal Medicine Processing, China Pharmaceutical University, Nanjing, 211198, China
| | - Jie Wang
- College of Engineering/National R&D Center for Chinese Herbal Medicine Processing, China Pharmaceutical University, Nanjing, 211198, China
| | - Si-Xuan Zhou
- College of Engineering/National R&D Center for Chinese Herbal Medicine Processing, China Pharmaceutical University, Nanjing, 211198, China
| | - De-Chun Huang
- College of Engineering/National R&D Center for Chinese Herbal Medicine Processing, China Pharmaceutical University, Nanjing, 211198, China
| | - Guo-Hong Qi
- College of Engineering/National R&D Center for Chinese Herbal Medicine Processing, China Pharmaceutical University, Nanjing, 211198, China.
| | - Gui-Tang Chen
- College of Engineering/National R&D Center for Chinese Herbal Medicine Processing, China Pharmaceutical University, Nanjing, 211198, China.
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13
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Structural Characterization of Polysaccharide Derived from Gastrodia elata and Its Immunostimulatory Effect on RAW264.7 Cells. Molecules 2022; 27:molecules27228059. [PMID: 36432165 PMCID: PMC9694387 DOI: 10.3390/molecules27228059] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2022] [Revised: 11/17/2022] [Accepted: 11/18/2022] [Indexed: 11/22/2022] Open
Abstract
A polysaccharide from Gastrodia elata (named GEP-1) was isolated with a DEAE-52 column and Sephadex G-100 column. The structural characteristics showed that GEP-1 was mainly composed of glucose (92.04%), galactose (4.79%) and arabinose (2.19%) with a molecular weight of 76.444 kDa. The polydispersity (Mw/Mn) of GEP-1 was 1.25, indicating that the distribution of molar mass (Mw) was relatively narrow, which suggested that GEP-1 was a homogeneous polysaccharide. Moreover, the molecular conformation plot of the root mean square (RMS) radius (<rg2> 1/2) versus Mw yielded a line with a slope less than 0.33 (0.15 ± 0.02), displaying that GEP-1 is a compact and curly spherical molecule in NaNO3 aqueous solution. NMR and methylation analyses revealed that the main chain structure of GEP-1 was α-(1→4)-glucans. Furthermore, it was proven that GEP-1 possessed cytoproliferative and enhancing phagocytic activities and induced cytokine (TNF-α, IL1-β) and nitric oxide (NO) release in macrophages by upregulating the related gene expression. In addition, the RNA-seq results suggested that the GEP-1-induced immunomodulatory effect was mainly caused by activation of the NF-κB signaling pathway, which was further verified by NF-κB ELISA and pathway inhibition assays. As a result, GEP-1 exhibits the potential to be developed as a novel cheap immunostimulant without obvious toxicity.
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14
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Gan L, Wang J, Guo Y. Polysaccharides influence human health via microbiota-dependent and -independent pathways. Front Nutr 2022; 9:1030063. [PMID: 36438731 PMCID: PMC9682087 DOI: 10.3389/fnut.2022.1030063] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2022] [Accepted: 10/20/2022] [Indexed: 08/13/2023] Open
Abstract
Polysaccharides are the most diverse molecules and can be extracted from abundant edible materials. Increasing research has been conducted to clarify the structure and composition of polysaccharides obtained from different materials and their effects on human health. Humans can only directly assimilate very limited polysaccharides, most of which are conveyed to the distal gut and fermented by intestinal microbiota. Therefore, the main mechanism underlying the bioactive effects of polysaccharides on human health involves the interaction between polysaccharides and microbiota. Recently, interest in the role of polysaccharides in gut health, obesity, and related disorders has increased due to the wide range of valuable biological activities of polysaccharides. The known roles include mechanisms that are microbiota-dependent and involve microbiota-derived metabolites and mechanisms that are microbiota-independent. In this review, we discuss the role of polysaccharides in gut health and metabolic diseases and the underlying mechanisms. The findings in this review provide information on functional polysaccharides in edible materials and facilitate dietary recommendations for people with health issues. To uncover the effects of polysaccharides on human health, more clinical trials should be conducted to confirm the therapeutic effects on gut and metabolic disease. Greater attention should be directed toward polysaccharide extraction from by-products or metabolites derived from food processing that are unsuitable for direct consumption, rather than extracting them from edible materials. In this review, we advanced the understanding of the structure and composition of polysaccharides, the mutualistic role of gut microbes, the metabolites from microbiota-fermenting polysaccharides, and the subsequent outcomes in human health and disease. The findings provide insight into the proper application of polysaccharides in improving human health.
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Affiliation(s)
- Liping Gan
- School of Bioengineering, Henan University of Technology, Zhengzhou, China
| | - Jinrong Wang
- School of Bioengineering, Henan University of Technology, Zhengzhou, China
| | - Yuming Guo
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing, China
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15
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Zhou F, Lu Y, Sun T, Sun L, Wang B, Lu J, Li Z, Zhu B, Huang S, Ding Z. Antitumor effects of polysaccharides from Tetrastigma hemsleyanum Diels et Gilg via regulation of intestinal flora and enhancing immunomodulatory effects in vivo. Front Immunol 2022; 13:1009530. [PMID: 36389762 PMCID: PMC9650377 DOI: 10.3389/fimmu.2022.1009530] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2022] [Accepted: 10/10/2022] [Indexed: 08/11/2023] Open
Abstract
Tetrastigma hemsleyanum Diels et Gilg is a traditional Chinese herbal medicine with high medicinal value, and antitumor, antioxidant and anti-inflammatory biological activities. However, while several studies have focused on flavonoids in Tetrastigma hemsleyanum tubers, there are few studies on the enhanced immune effect of Tetrastigma hemsleyanum polysaccharides (THP). In this study, we evaluated the antitumor effect of THP in a lung tumor model and explored the mechanism of antitumor activity through intestinal flora. In addition, a cyclophosphamide (CTX)-induced immunosuppression model was used to declare the immunomodulatory effect of THP in the immunosuppressive state induced by antitumor drugs. The results showed that THP increased the content of ileum secreted immunoglobulin A (SIgA) and cecum short-chain fatty acids (SCFAs) and improved microbial community diversity, regulating the relative abundance of dominant microbiota flora from the phylum level to the genus level, and recovering the intestinal microflora disorder caused by tumors. Additionally, THP can increase the organ indices and improve immune organ atrophy. THP can upregulate routine blood counts and stimulate the production of the serum cytokines. THP also promoted the macrophage phagocytic index, NK-cell activation, and complement and immunoglobulin (IgG, IgA, IgM) levels. The detection of Splenic lymphocyte proliferation and T lymphocyte subsets also sideways reflects that THP can restore CTX-induced immune inhibition in mice. In conclusion, this study suggests that THP can effectively achieve the enhanced antitumor effects, regulate gut microbiota and improve the immunosuppression induced by antitumor drugs. Therefore, THP can enhance the immune capacity and provide novel immunomodulatory and antineoplastic adjuvant agents.
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Affiliation(s)
- Fangmei Zhou
- School of Medical Technology and Information Engineering, Zhejiang Chinese Medical University, Hangzhou, China
| | - Yan Lu
- First College of Clinical Medicine, Zhejiang Chinese Medical University, Hangzhou, China
| | - Tong Sun
- School of Medical Technology and Information Engineering, Zhejiang Chinese Medical University, Hangzhou, China
| | - Ling Sun
- School of Medical Technology and Information Engineering, Zhejiang Chinese Medical University, Hangzhou, China
| | - Bixu Wang
- School of Medical Technology and Information Engineering, Zhejiang Chinese Medical University, Hangzhou, China
| | - Jingjing Lu
- School of Medical Technology and Information Engineering, Zhejiang Chinese Medical University, Hangzhou, China
| | - Zhimin Li
- Information Technology Center, Zhejiang Chinese Medical University, Hangzhou, China
| | - Bingqi Zhu
- School of Medical Technology and Information Engineering, Zhejiang Chinese Medical University, Hangzhou, China
| | - Shigao Huang
- Department of Radiation Oncology, The First Affiliated Hospital, Air Force Medical University, Xi an, China
| | - Zhishan Ding
- School of Medical Technology and Information Engineering, Zhejiang Chinese Medical University, Hangzhou, China
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16
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Zheng Z, Huang Q. New insight into the structure-dependent two-way immunomodulatory effects of water-soluble yeast β-glucan in macrophages. Carbohydr Polym 2022; 291:119569. [DOI: 10.1016/j.carbpol.2022.119569] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2022] [Revised: 04/28/2022] [Accepted: 05/01/2022] [Indexed: 12/15/2022]
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17
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Jiang T, Ye S, Liao W, Wu M, He J, Mateus N, Oliveira H. The botanical profile, phytochemistry, biological activities and protected-delivery systems for purple sweet potato (Ipomoea batatas (L.) Lam.): An up-to-date review. Food Res Int 2022; 161:111811. [DOI: 10.1016/j.foodres.2022.111811] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2022] [Revised: 07/29/2022] [Accepted: 08/18/2022] [Indexed: 11/04/2022]
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18
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Wang X, Zhao Y, Wu Y, Liu L, Liang M, Han M, Li P, Chen Z, Yan H, Zhao R. Size, surface charge and flexibility of vinegar-baked Radix Bupleuri polysaccharide affecting the immune response. ARAB J CHEM 2022. [DOI: 10.1016/j.arabjc.2022.104008] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023] Open
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19
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Liang J, Zhao M, Xie S, Peng D, An M, Chen Y, Li P, Du B. Effect of steam explosion pretreatment on polysaccharide isolated from Poria cocos: Structure and immunostimulatory activity. J Food Biochem 2022; 46:e14355. [PMID: 35892192 DOI: 10.1111/jfbc.14355] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2022] [Revised: 06/26/2022] [Accepted: 07/14/2022] [Indexed: 12/01/2022]
Abstract
This study aimed to examine the effects of steam explosion (SE) pretreatment on the structural characteristics and immunostimulatory activity of polysaccharide from Poria cocos. Results showed that the average molecular weights of native polysaccharide (PCP) and SE-pretreated polysaccharide (SEPCP) were 18.67 and 6.52 kDa, respectively. PCP and SEPCP shared the same profiles of monosaccharides (mannose, glucose, galactose, and fucose) in different composition ratios, that is, PCP in a molar percentage of 13.5:33:40.3:13.2 and SEPCP in a molar percentage of 2.1:90.3:5.8:1.8. The surface structure of PCP showed smooth and densely spherical particles, whereas SEPCP had a rough surface and porous honeycomb structure. The main linkage types of PCP comprised 1,6-α-d-Galp, 1,2,6-α-d-Glcp, and T-α-d-Manp, whereas SEPCP primarily contained 1,3-β-d-Glcp backbone and T-β-d-Glcp branches. Compared with PCP, we further revealed that SEPCP had a better immune enhancement on the phagocytic ability, NO production, and the secretion levels of TNF-α and IL-6 in RAW 264.7 cells. Collectively, our observations supported that SE pretreatment could help to change the structure and improve the immunostimulatory activity of polysaccharide from P. cocos. PRACTICAL APPLICATIONS: SE technology is extensively used to extract bioactive components with improved yields owing to this technology's benefits of low energy consumption and high efficiency. SE pretreatment was found to contribute to the destruction of cell-wall structure, which could help to enhance the extraction yields of P. cocos polysaccharide (PCP). Meanwhile, SE pretreatment also could change the structural features and improve the immunostimulatory activity of PCP. This study revealed that more bioactive PCP with strengthened immunoregulatory effect was obtained pretreated by SE. This study was able to provide the effective information on the application of steam explosion technology to promote the further development and utilization of PCP in the pharmaceutical and functional food fields.
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Affiliation(s)
- Jiehua Liang
- College of Food Science, South China Agricultural University, Guangzhou, China
| | - Minhao Zhao
- College of Food Science, South China Agricultural University, Guangzhou, China
| | - Siwei Xie
- College of Mathematics and Information, South China Agricultural University, Guangzhou, China
| | - Dong Peng
- College of Food Science, South China Agricultural University, Guangzhou, China
| | - Miaoqing An
- College of Food Science, South China Agricultural University, Guangzhou, China
| | - Yang Chen
- College of Food Science, South China Agricultural University, Guangzhou, China
| | - Pan Li
- College of Food Science, South China Agricultural University, Guangzhou, China.,Guangdong Laboratory for Lingnan Modern Agriculture, South China Agricultural University, Guangzhou, China
| | - Bing Du
- College of Food Science, South China Agricultural University, Guangzhou, China.,Guangdong Laboratory for Lingnan Modern Agriculture, South China Agricultural University, Guangzhou, China
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20
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Xiao W, Zhou P, Wang X, Zhao R, Wang Y. Comparative Characterization and Immunomodulatory Activities of Polysaccharides Extracted from the Radix of Platycodon grandiflorum with Different Extraction Methods. Molecules 2022; 27:molecules27154759. [PMID: 35897935 PMCID: PMC9331874 DOI: 10.3390/molecules27154759] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2022] [Revised: 07/04/2022] [Accepted: 07/19/2022] [Indexed: 11/16/2022] Open
Abstract
Platycodon grandiflorum is an edible and medicinal plant, and polysaccharides are one of its important components. To further improve the utilization rate of P. grandiflorum, we investigated the effects of four different extraction methods, including hot water, ultrasonic-assisted, acid-assisted, and alkali-assisted extractions, on the polysaccharides, which were named PG-H, PG-U, PG-C, and PG-A. The findings indicated that the extraction method had a significant impact on the yield, characteristics, and immunoregulatory activity. We observed that the yields decreased in the following order: PG-H, PG-U, PG-C, and PG-A. Galacturonic acid, glucose, galactose, and arabinose were the most prevalent monosaccharides in the four PGs. However, their proportions varied. In addition, the difference between the content of glucose and galacturonic acid was more significant. PG-U had the highest glucose content, whereas PG-C had the lowest. Galacturonic acid content was highest in PG-A, while the lowest in PG-U. The molecular weight decreased in the order of PG-U, PG-H, PG-C, and PG-A; the particle size was in the order of PG-U, PG-A, PG-H, and PG-C. Moreover, the extraction method had a great impact on immunoregulatory activity. The ability to stimulate the immune function of macrophages was as follows: PG-A > PG-C > PG-U > PG-H. The results indicated that PGs, with lower molecular weights and higher GalA content, exhibited better immune-stimulating activity. And more important the AAE method was a good way to extract polysaccharides from Platycodon grandiflorum for use as a functional product and immunological adjuvant.
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Affiliation(s)
- Wanwan Xiao
- School of Chinese Materia Medica, Guangdong Pharmaceutical University, Guangzhou 510006, China; (W.X.); (P.Z.)
| | - Pingfan Zhou
- School of Chinese Materia Medica, Guangdong Pharmaceutical University, Guangzhou 510006, China; (W.X.); (P.Z.)
| | - Xiaoshuang Wang
- The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou 510006, China;
| | - Ruizhi Zhao
- The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou 510006, China;
- Guangdong Provincial Key Laboratory of Clinical Research on Traditional Chinese Medicine Syndrome, Guangzhou University of Chinese Medicine, Guangzhou 510006, China
- Correspondence: (R.Z.); (Y.W.)
| | - Yan Wang
- School of Chinese Materia Medica, Guangdong Pharmaceutical University, Guangzhou 510006, China; (W.X.); (P.Z.)
- Correspondence: (R.Z.); (Y.W.)
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21
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Xia Y, Meng P, Liu S, Tan Z, Yang X, Liang L, Xie F, Zhang H, Wang G, Xiong Z, Lo J, Ai L. Structural and Potential Functional Properties of Alkali-Extracted Dietary Fiber From Antrodia camphorata. Front Microbiol 2022; 13:921164. [PMID: 35875549 PMCID: PMC9301256 DOI: 10.3389/fmicb.2022.921164] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2022] [Accepted: 05/30/2022] [Indexed: 11/27/2022] Open
Abstract
Antrodia camphorata is rich in a variety of bioactive ingredients; however, the utilization efficiency of the residue of A. camphorata is low, resulting in serious waste. It is necessary to deeply study the functional components of A. camphorata residues to achieve high-value utilization. In this study, the components, structural characteristics, and functional properties of alkali-extracted dietary fiber extracted from residues of A. camphorata (basswood and dish cultured fruiting body, respectively) were investigated. There were similar components and structural characteristics of ACA-DK (extract from basswood cultured) and ACA-DF (extract from dish cultured). The two alkali-extracted dietary fiber were composed of mainly cellulose and xylan. However, ACA-DK has better adsorption capacities than ACA-DF on lipophilic substances such as oil (12.09 g/g), cholesterol (20.99 mg/g), and bile salts (69.68 mg/g). In vitro immunomodulatory assays stated that ACA-DK had a good effect on promoting the proliferation of RAW 264.7 cells and can activate cell phagocytosis, NO synthesis, and other immune capabilities. The edible fungus A. camphorata is a good source of functional dietary fiber. The alkali-extracted dietary fiber of A. camphorata might be used as a functional ingredient in the medicine and food industry.
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Affiliation(s)
- Yongjun Xia
- School of Health Science and Engineering, Shanghai Engineering Research Center of Food Microbiology, University of Shanghai for Science and Technology, Shanghai, China
| | - Peng Meng
- School of Health Science and Engineering, Shanghai Engineering Research Center of Food Microbiology, University of Shanghai for Science and Technology, Shanghai, China
| | - Shaodong Liu
- School of Health Science and Engineering, Shanghai Engineering Research Center of Food Microbiology, University of Shanghai for Science and Technology, Shanghai, China
| | - Zhuoming Tan
- School of Health Science and Engineering, Shanghai Engineering Research Center of Food Microbiology, University of Shanghai for Science and Technology, Shanghai, China
| | - Xi Yang
- School of Health Science and Engineering, Shanghai Engineering Research Center of Food Microbiology, University of Shanghai for Science and Technology, Shanghai, China
| | - Lihong Liang
- School of Health Science and Engineering, Shanghai Engineering Research Center of Food Microbiology, University of Shanghai for Science and Technology, Shanghai, China
| | - Fan Xie
- School of Health Science and Engineering, Shanghai Engineering Research Center of Food Microbiology, University of Shanghai for Science and Technology, Shanghai, China
| | - Hui Zhang
- School of Health Science and Engineering, Shanghai Engineering Research Center of Food Microbiology, University of Shanghai for Science and Technology, Shanghai, China
| | - Guangqiang Wang
- School of Health Science and Engineering, Shanghai Engineering Research Center of Food Microbiology, University of Shanghai for Science and Technology, Shanghai, China
| | - Zhiqiang Xiong
- School of Health Science and Engineering, Shanghai Engineering Research Center of Food Microbiology, University of Shanghai for Science and Technology, Shanghai, China
| | - Jenyu Lo
- Honest and Humble Biotechnology Co., Ltd., New Taipei City, China
| | - Lianzhong Ai
- School of Health Science and Engineering, Shanghai Engineering Research Center of Food Microbiology, University of Shanghai for Science and Technology, Shanghai, China
- *Correspondence: Lianzhong Ai
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22
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Du B, Zhang X, Zhu C, Wu Y, Ji H, Zhang Y, Yue X. Immunomodulatory and Antioxidant Effects of Polysaccharides from
Pleurotus ostreatus
on immunosuppressed mice. STARCH-STARKE 2022. [DOI: 10.1002/star.202200009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Biqi Du
- College of Food Engineering and Nutrition Science Shaanxi Normal University Xi'an 710119 China
| | - Xiao Zhang
- College of Food Engineering and Nutrition Science Shaanxi Normal University Xi'an 710119 China
| | - Caiping Zhu
- College of Food Engineering and Nutrition Science Shaanxi Normal University Xi'an 710119 China
| | - Yuan Wu
- College of Food Engineering and Nutrition Science Shaanxi Normal University Xi'an 710119 China
| | - Huijie Ji
- College of Food Engineering and Nutrition Science Shaanxi Normal University Xi'an 710119 China
| | - Yifan Zhang
- College of Food Engineering and Nutrition Science Shaanxi Normal University Xi'an 710119 China
| | - Xiaoxia Yue
- College of Food Engineering and Nutrition Science Shaanxi Normal University Xi'an 710119 China
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23
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Huang H, Wang X, Yang L, He W, Meng T, Zheng K, Xia X, Zhou Y, He J, Liu C, Zou S, Xiao D. The Effects of Fenugreek Extract on Growth Performance, Serum Biochemical Indexes, Immunity and NF-κB Signaling Pathway in Broiler. Front Vet Sci 2022; 9:882754. [PMID: 35812848 PMCID: PMC9260050 DOI: 10.3389/fvets.2022.882754] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2022] [Accepted: 04/25/2022] [Indexed: 11/29/2022] Open
Abstract
In order to study the regulation of Fenugreek seed extract (FSE) on the immunity of broilers, and explore the appropriate amount of FSE in broilers' production, 1-day-old yellow feather broilers with a total of 420 birds were randomly allocated into seven treatments. Each treatment had six replicates, with 10 birds per replicate. The two control groups were the basic fodder group fed with basal diet and the bacitracin zinc group added 30 mg/kg bacitracin zinc to the basal diet. Experimental groups included five levels of FSE (50, 100, 200, 400, and 800 mg/kg FSE to the basal diet, respectively). The pre-test period was 7 days and the formal test lasted for 56 days. The results showed that the average daily gain (ADG) of 50 and 800 mg/kg FSE groups was significantly increased (P < 0.01), and the feed to gain ratio (F/G) of FSE groups was significantly decreased (P < 0.01) compared with the basic fodder and the bacitracin zinc groups. Compared with the basic fodder group, the serum total cholesterol (TC) content in the FSE groups was significantly decreased (P < 0.05), the serum low density lipoprotein cholesterol (LDL-C) content of 50, 100, and 800 mg/kg FSE groups was significantly lower than that of the basic fodder group (P < 0.05). Compared with the basic fodder and bacitracin zinc groups, the serum immunoglobulins (IgG, IgM, IgA) content of 100 and 200 mg/kg FSE groups were significantly increased (P < 0.05). Compared with the bacitracin zinc group, the serum interleukins (IL-1, IL-10) content of 400 mg/kg FSE group were significantly increased (P ≤ 0.05), and the serum interferon-γ (IFN-γ) content of 100 and 200 mg/kg FSE groups was significantly increased (P < 0.05). Compared with the basic fodder group, the lower doses (0–400 mg/kg) of FSE had no significant effect on the mRNA expression of toll-like receptors 4/ myeloid differentiation factor 88/ nuclear factor-κB (TLR4/MyD88/NF-κB) signaling pathways (P > 0.05). The 800 mg/kg FSE treatment group significantly increased the expression levels of nuclear factor-κB (NF-κB) mRNA in the spleen of broilers (P < 0.05). The zinc bacitracin group significantly increased the expression levels of myeloid differentiation factor 88 (MyD88) and nuclear factor-κB (NF-κB) mRNA (P ≤ 0.05). The results showed that FSE could promote the secretion of immunoglobulins, regulate the body's cytokines, and have a positive effect on immunity in broilers. Furthermore, the recommended supplement of FSE is 100 mg/kg in the broiler diet.
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Affiliation(s)
- Hui Huang
- College of Animal Science and Technology, Hunan Agricultural University, Changsha, China
| | - Xia Wang
- College of Animal Science and Technology, Hunan Agricultural University, Changsha, China
- Yiyang Vocational and Technical College, Yiyang, China
| | - Ling Yang
- College of Animal Science and Technology, Hunan Agricultural University, Changsha, China
| | - Wenxiang He
- College of Animal Science and Technology, Hunan Agricultural University, Changsha, China
| | - Tiantian Meng
- College of Animal Science and Technology, Hunan Agricultural University, Changsha, China
| | - Ke Zheng
- College of Animal Science and Technology, Hunan Agricultural University, Changsha, China
| | - Xin Xia
- College of Animal Science and Technology, Hunan Agricultural University, Changsha, China
| | - Yingjun Zhou
- Geneham Pharmaceutical Co., Ltd., Changsha, China
- College of Xiangya Pharmaceutical Sciences, Central South University, Changsha, China
| | - Jianhua He
- College of Animal Science and Technology, Hunan Agricultural University, Changsha, China
| | - Chunming Liu
- College of Animal Science and Technology, Hunan Agricultural University, Changsha, China
| | - Shengwen Zou
- Hunan Wenfeng Agricultural and Animal Husbandry Technology Co., Loudi, China
| | - Dingfu Xiao
- College of Animal Science and Technology, Hunan Agricultural University, Changsha, China
- *Correspondence: Dingfu Xiao
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Tian J, Tang C, Wang X, Zhang X, Xiao L, Li W. Supramolecular structure features and immunomodulatory effects of exopolysaccharide from Paecilomyces cicadae TJJ1213 in RAW264.7 cells through NF-κB/MAPK signaling pathways. Int J Biol Macromol 2022; 207:464-474. [PMID: 35278511 DOI: 10.1016/j.ijbiomac.2022.03.029] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2021] [Revised: 02/26/2022] [Accepted: 03/07/2022] [Indexed: 12/11/2022]
Abstract
This study investigated the supramolecular structure features and immunomodulatory effects of two exopolysaccharide fractions (EPS1 and EPS2) from Paecilomyces cicada TJJ1213 in vitro. AFM images revealed that EPS1 and EPS2 displayed different morphological features at different concentrations. Congo red and XRD assay further proved that EPS1 and EPS2 mainly exhibited amorphous structure with random coil conformation in solution. Furthermore, the immunomodulatory effect of EPSs was investigated on RAW264.7 cells. Results showed that EPS1 and EPS2 could enhance the phagocytic activity and induce the NO production and could also significantly up-regulate the mRNA expression of iNOS, TNF-α, IL-6, IL-1β, IFN-γ and IL-4. Western blot assay analysis demonstrated that EPSs increased protein expression of TLR4 and the nuclear translocation of NF-κB p50/p65. Additionally, the phosphorylation levels of MAPKs proteins (p38, ERK and JNK) were also remarkably increased. Thus, EPSs could active TLR4-NF-κB/MAPKs signaling pathways to exert the immunomodulatory effect on macrophages.
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Affiliation(s)
- Juanjuan Tian
- College of Food Science and Technology, Nanjing Agricultural University, Nanjing, Jiangsu 210095, PR China
| | - Chao Tang
- College of Food Science and Technology, Nanjing Agricultural University, Nanjing, Jiangsu 210095, PR China
| | - Xiaomeng Wang
- College of Food Science and Technology, Nanjing Agricultural University, Nanjing, Jiangsu 210095, PR China
| | - Xueliang Zhang
- College of Food Science and Technology, Nanjing Agricultural University, Nanjing, Jiangsu 210095, PR China
| | - Luyao Xiao
- College of Food Science and Technology, Nanjing Agricultural University, Nanjing, Jiangsu 210095, PR China
| | - Wei Li
- College of Food Science and Technology, Nanjing Agricultural University, Nanjing, Jiangsu 210095, PR China.
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25
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Huang Q, Huang Q, Wang Y, Lu X. Development of wet media milled purple sweet potato particle-stabilized pickering emulsions: The synergistic role of bioactives, starch and cellulose. Lebensm Wiss Technol 2022. [DOI: 10.1016/j.lwt.2021.112964] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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26
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Immunomodulatory activity of egg yolk protein hydrolysates prepared by novel two-step hydrolysis: A study of mechanism and stability after in vitro digestion model. Poult Sci 2022; 101:101802. [PMID: 35325833 PMCID: PMC8938909 DOI: 10.1016/j.psj.2022.101802] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2021] [Revised: 01/20/2022] [Accepted: 02/13/2022] [Indexed: 11/30/2022] Open
Abstract
The aim of this study was to determine the immunomodulatory activity of 2-step egg yolk protein hydrolysates. A two-step hydrolysate of egg yolk protein was prepared using 2 enzymes sequentially, pancreatin and neutrase (EYPH-PN). Our results illustrated that EYPH-PN increased the expression of inducible nitric oxide synthase (iNOS) mRNA in macrophages, resulting in increased nitric oxide (NO) production. EYPH-PN could also enhance the production of tumor necrosis factor (TNF)-α and interleukin (IL)-6 at both the mRNA and protein levels in macrophages. In addition, treatment with EYPH-PN increased the phagocytic activity of macrophages. According to the evaluation with specific inhibitors, both p38 and JNK cell signaling pathways were involved in the activation of macrophages induced by EYPH-PN. As the TLR-2 receptor of macrophages was blocked, the NO production induced by EYPH-PN was decreased. These results suggest that EYPH-PN activates RAW 264.7 macrophages via the TLR-2/p38/JNK pathway to increase the production of NO, TNF-α, and IL-6, and increases phagocytic activity. Furthermore, the immunomodulatory activity of EYPH-PN was maintained even after applying the in vitro digestion model. Taken together, EYPH-PN could be used as a functional food ingredient with excellent immunomodulatory activity in the food industry. Therefore, this study suggests a new alternative method to effectively utilize egg yolk protein, a by-product of the poultry industry.
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27
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Sun Y, Ho CT, Zhang Y, Hong M, Zhang X. Plant polysaccharides utilized by gut microbiota: New players in ameliorating cognitive impairment. J Tradit Complement Med 2022; 13:128-134. [PMID: 36970456 PMCID: PMC10037067 DOI: 10.1016/j.jtcme.2022.01.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2021] [Revised: 10/10/2021] [Accepted: 01/07/2022] [Indexed: 10/19/2022] Open
Abstract
Considerable evidence indicates the important role of gut microbiota in human health. Through the interaction with the host and diet, it secretes a myriad of metabolites to modulate biological processes essential for health. Cognitive impairment is a common feature of psychiatric and neurological disorders, which may seriously damage the quality of patients' life. Studies have found that cognitive impairment has a close relationship with gut microbiota, and plant polysaccharides intervention to maintain intestinal micro-ecological balance has a great impact on ameliorating cognitive impairment. This review introduced the interaction between gut microbiota and plant polysaccharides, and focused on signaling pathogenesis of gut microbiota in cognitive impairment. The effect of plant polysaccharides intervention on regulation of gut microbiota was also discussed, so as to provide a promising strategy for ameliorating cognitive impairment.
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28
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Yu Y, Wen Q, Song A, Liu Y, Wang F, Jiang B. Isolation and immune activity of a new acidic Cordyceps militaris exopolysaccharide. Int J Biol Macromol 2022; 194:706-714. [PMID: 34813790 DOI: 10.1016/j.ijbiomac.2021.11.115] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2021] [Revised: 10/21/2021] [Accepted: 11/16/2021] [Indexed: 01/09/2023]
Abstract
A new type of acidic exopolysaccharide (AESP-II) was extracted and separated from the fermentation broth of Cordyceps militaris (C. militaris), which was further purified to elucidate its structural characteristics and immunological activity. AESP-II was confirmed to be an acidic pyranose with a molecular weight of 61.52 kDa, which consisted of mannose, glucuronic acid, rhamnose, galactose acid, N-acetyl-galactosamine, glucose, galactose and arabinose with a molar ratio of 1.07: 5.38: 1: 3.14: 2.23: 15: 6.09: and 4.04. Animal experiment results verified that AESP-II can significantly promote the proliferation of spleen T and B lymphocytes in mice with immune injury caused by cyclophosphamide (CTX). In particular, the promotion of B lymphocytes presented a dose-effect relationship. In addition, the levels of the cytokines IL-2, IL-4, and IFN-γ, which are mainly secreted by T lymphocytes, and immunoglobulin IgG, IgM and IgA, which are mainly secreted by B lymphocytes, were increased after AESP-II treatment. The above results suggest that fluid immunity is involved in the immunomodulatory function of AESP-II. Simultaneously, AESP-II was detected significantly to promote the phosphorylation expression of p38 kinase (p38), extracellular regulated protein kinases (ERK) and c-Jun N-terminal kinase (JNK) by Western blot, further suggesting that the activation of the MAPK signaling pathway mediates the immunoregulatory function of AESP-II.
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Affiliation(s)
- Yue Yu
- Graduate School of Food Science and Engineering, Jilin Agricultural University, Changchun 130118, PR China
| | - Qiang Wen
- National Institutes for Food and Drug Control, Beijing 102629, PR China
| | - Ao Song
- Changchun Customs Technology Center, Changchun 130033, PR China
| | - Yang Liu
- Changchun Customs Technology Center, Changchun 130033, PR China
| | - Fei Wang
- School of Life Science, Liaocheng University, Liaocheng 252059, PR China.
| | - Bin Jiang
- Graduate School of Food Science and Engineering, Jilin Agricultural University, Changchun 130118, PR China.
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29
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Su X, Zhao M, Fu X, Ma X, Xu W, Hu S. Immunomodulatory activity of purified polysaccharides from Rubus chingii Hu fruits in lymphocytes and its molecular mechanisms. J Funct Foods 2021. [DOI: 10.1016/j.jff.2021.104785] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022] Open
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30
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Zhong RF, Yang JJ, Geng JH, Chen J. Structural characteristics, anti-proliferative and immunomodulatory activities of a purified polysaccharide from Lactarius volemus Fr. Int J Biol Macromol 2021; 192:967-977. [PMID: 34655586 DOI: 10.1016/j.ijbiomac.2021.10.049] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2021] [Revised: 10/07/2021] [Accepted: 10/07/2021] [Indexed: 01/13/2023]
Abstract
Lactarius volemus Fr. is an edible mushroom widely consumed in China. Polysaccharide is an important nutritional component of L. volemus. This research aimed to isolate the polysaccharide from L. volemus and study its structure and bioactivities. A purified polysaccharide was identified and named as LVF-I whose primary structure was proposed considering the comprehensive results of monosaccharide composition, periodate oxidation-smith degradation, methylation analysis, FT-IR and 1D/2D NMR spectroscopy. Then the immunomodulation of LVF-I and its inhibition effect on H1299 and MCF-7 cells were investigated. Results showed that LVF-I (12,894 Da) contained fucose, mannose, glucose and galactose. It had a backbone consisting of →4)-α-D-Glcp-(1→, →6)-β-D-Manp-(1→, →6)-α-D-Galp-(1 → and →4)-β-D-Manp-(1→. And its side chains were branched at C2 of →4)-β-D-Manp-(1 → by →6)-α-D-Galp-(1→, α-D-Glcp-(1→, α-D-Galp-(1 → and α-L-Fucp-(1→. LVF-I (250-1000 μg/mL) could inhibit the proliferation of H1299 and MCF-7 cells, while enhance the proliferative response of splenocyte and the phagocytic ability of RAW264.7. Furthermore, LVF-I (250-1000 μg/mL) significantly induced the secretion of nitric oxide, interleukin-6 (IL-6) and tumor necrosis factor-α (TNF-α) by up-regulating their mRNA expression in macrophages. These results suggested that LVF-I had the potential to be developed as antitumor or immunomodulatory agents by inhibiting the proliferation of tumor cells and stimulating macrophages-mediated immune responses.
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Affiliation(s)
- Rui-Fang Zhong
- School of Food Science and Engineering, South China University of Technology, Guangzhou 510640, China
| | - Jing-Juan Yang
- School of Chinese Material medica, Yunnan University of Chinese medicine, Kunming 650500, China
| | - Jia-Huan Geng
- School of Food Science and Engineering, South China University of Technology, Guangzhou 510640, China
| | - Jian Chen
- School of Food Science and Engineering, South China University of Technology, Guangzhou 510640, China.
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31
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Lee JH, Kim HJ, Ahn DU, Paik HD. Improved immune-enhancing activity of egg white protein ovotransferrin after enzyme hydrolysis. JOURNAL OF ANIMAL SCIENCE AND TECHNOLOGY 2021; 63:1159-1168. [PMID: 34796354 PMCID: PMC8564309 DOI: 10.5187/jast.2021.e82] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/31/2021] [Revised: 05/07/2021] [Accepted: 06/02/2021] [Indexed: 12/13/2022]
Abstract
Ovotransferrin (OTF), an egg protein known as transferrin family protein, possess strong antimicrobial and antioxidant activity. This is because OTF has two iron binding sites, so it has a strong metal chelating ability. The present study aimed to evaluate the improved immune-enhancing activities of OTF hydrolysates produced using bromelain, pancreatin, and papain. The effects of OTF hydrolysates on the production and secretion of pro-inflammatory mediators in RAW 264.7 macrophages were confirmed. The production of nitric oxide (NO) was evaluated using Griess reagent and the expression of inducible nitric oxide synthase (iNOS) were evaluated using quantitative real-time polymerase chain reaction (PCR). And the production of pro-inflammatory cytokines (tumor necrosis factor [TNF]-α and interleukin [IL]-6) and the phagocytic activity of macrophages were evaluated using an ELISA assay and neutral red uptake assay, respectively. All OTF hydrolysates enhanced NO production by increasing iNOS mRNA expression. Treating RAW 264.7 macrophages with OTF hydrolysates increased the production of pro-inflammatory cytokines and the phagocytic activity. The production of NO and pro-inflammatory cytokines induced by OTF hydrolysates was inhibited by the addition of specific mitogen-activated protein kinase (MAPK) inhibitors. In conclusion, results indicated that all OTF hydrolysates activated RAW 264.7 macrophages by activating MAPK signaling pathway.
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Affiliation(s)
- Jae Hoon Lee
- Department of Food Science and Biotechnology of Animal Resources, Konkuk University, Seoul 05029, Korea
| | - Hyeon Joong Kim
- Department of Food Science and Biotechnology of Animal Resources, Konkuk University, Seoul 05029, Korea
| | - Dong Uk Ahn
- Department of Animal Science, Iowa State University, Ames, IA 50011, USA
| | - Hyun-Dong Paik
- Department of Food Science and Biotechnology of Animal Resources, Konkuk University, Seoul 05029, Korea
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32
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Tang C, Tao J, Sun J, Lv F, Lu Z, Lu Y. Regulatory mechanisms of energy metabolism and inflammation in oleic acid-treated HepG2 cells from Lactobacillus acidophilus NX2-6 extract. J Food Biochem 2021; 45:e13925. [PMID: 34486133 DOI: 10.1111/jfbc.13925] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2021] [Revised: 07/12/2021] [Accepted: 08/26/2021] [Indexed: 12/12/2022]
Abstract
In this study, the cell-free extracts (CFE) of Lactobacillus acidophilus NX2-6 were utilized to treat oleic acid (OA)-induced hepatic steatosis. It was found that CFE treatment improved lipid metabolism in OA-induced hepatic steatosis model by downregulating several lipogenic genes but increasing expression levels of lipolysis-related genes. In addition, gene expression analysis revealed that CFE treatment promoted mitochondrial biogenesis and fission by upregulating the mRNA levels of PGC-1α, PGC-1β, Sirt1, NRF1, and Fis1. CFE treatment also increased protein expression of p-AMPKα, PGC-1α, ACOX1, and Sirt1 in OA-treated cells, suggesting that CFE possessed ability to improve energy metabolism. Furthermore, CFE treatment also reversed OA-induced oxidative stress by increasing CAT activity and protein level of Nrf-2 as well as reducing protein expression of ATF6, XBP1, GRP78, p50, and p-ERK, indicating that CFE could inhibit endoplasmic reticulum stress and sterile inflammation. Thus, L. acidophilus NX2-6 had potential to fight against NAFLD. PRACTICAL APPLICATIONS: Diet-induced hepatic steatosis is one of major public health concerns all over the world. Hepatic steatosis is accompanied by disregulation of lipid metabolism and energy metabolism, endoplasmic reticulum stress, oxidative stress as well as chronic inflammation. It is reported that probiotics are considered as emerging therapeutic strategy to alleviate hepatic steatosis. This study indicated potential applications of dead probiotics in the prevention of hepatic steatosis and development of functional foods.
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Affiliation(s)
- Chao Tang
- College of Food Science and Technology, Nanjing Agricultural University, Nanjing, China
| | - Jia Tao
- College of Food Science and Technology, Nanjing Agricultural University, Nanjing, China
| | - Jing Sun
- College of Food Science and Engineering, Nanjing University of Finance and Economics, Nanjing, China
| | - Fengxia Lv
- College of Food Science and Technology, Nanjing Agricultural University, Nanjing, China
| | - Zhaoxin Lu
- College of Food Science and Technology, Nanjing Agricultural University, Nanjing, China
| | - Yingjian Lu
- College of Food Science and Engineering, Nanjing University of Finance and Economics, Nanjing, China
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33
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Alam MK. A comprehensive review of sweet potato (Ipomoea batatas [L.] Lam): Revisiting the associated health benefits. Trends Food Sci Technol 2021. [DOI: 10.1016/j.tifs.2021.07.001] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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34
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Pei Z, Lou Z, Zhang B, Wang H, Li Y. Development of a compound oral liquid containing herbal extracts and its effect on immunity and gastric mucosa. J Food Sci 2021; 86:2684-2699. [PMID: 34096062 DOI: 10.1111/1750-3841.15761] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2019] [Revised: 03/08/2021] [Accepted: 04/07/2021] [Indexed: 01/21/2023]
Abstract
Nowadays, consumers have an increasing demand for health products. In this study, an oral liquid was developed using a compound extract consisting of three herbal extracts (Dendrobium nobile Lindl., Lycium barbarum, and Puerariae lobatae Radix) because the compound extract (a combination of all three extracts) was superior to every single extract in promoting the phagocytic capacity of RAW264.7 macrophages and the proliferation ability of GES-1 cells. In this oral liquid, the dosage of the stabilizer and the sweetener was selected using a stability test and sensory quality evaluation. When 0.30% (m/v) xanthan gum and 0.20% (m/v) mogroside were added, the oral liquid had not only a good stability but also the highest sensory score for overall acceptability. The chemical composition analysis showed that the oral liquid had various functional ingredients including polysaccharides, phenols, alkaloids, and so forth. The immune-enhancing efficacy of the oral liquid was evaluated in BALB/c mice by measuring the levels of different immune indicators. The results indicated that the oral liquid obviously enhanced nonspecific and specific immunity. A rat model with ethanol-induced gastric ulcer was used to examine the protective effect of the oral liquid on the gastric mucosa and to explore the related mechanisms. The oral administration of the oral liquid for days significantly prevented the formation of gastric ulcer. This study provided an effective oral liquid that could enhance immunity and protect gastric mucosa.
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Affiliation(s)
- Zejun Pei
- State Key Laboratory of Dairy Biotechnology, Technology Center of Bright Dairy and Food Company Ltd., Shanghai, China.,Department of Pharmacy, Nanjing Medical University Affiliated Wuxi No. 2 People's hospital, Wuxi, China
| | - Zaixiang Lou
- School of Food Science and Technology, Jiangnan University, Wuxi, China
| | - Bingjie Zhang
- State Key Laboratory of Dairy Biotechnology, Technology Center of Bright Dairy and Food Company Ltd., Shanghai, China.,School of Food Science and Technology, Jiangnan University, Wuxi, China
| | - Hongxin Wang
- School of Food Science and Technology, Jiangnan University, Wuxi, China
| | - Yaqin Li
- State Key Laboratory of Dairy Biotechnology, Technology Center of Bright Dairy and Food Company Ltd., Shanghai, China.,School of Food Science and Technology, Jiangnan University, Wuxi, China
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35
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Tang C, Kong L, Shan M, Lu Z, Lu Y. Protective and ameliorating effects of probiotics against diet-induced obesity: A review. Food Res Int 2021; 147:110490. [PMID: 34399486 DOI: 10.1016/j.foodres.2021.110490] [Citation(s) in RCA: 33] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/01/2021] [Revised: 05/05/2021] [Accepted: 05/23/2021] [Indexed: 02/07/2023]
Abstract
Diet-induced obesity is one of the major public health concerns all over the world, and obesity also contributes to the development of other chronic diseases such as non-alcoholic fatty acid liver disease, type 2 diabetes mellitus and cardiovascular diseases. Evidence shows that the pathogenesis of obesity and obesity-associated chronic diseases are closely related to dysregulation of lipid metabolism, glucose metabolism and cholesterol metabolism, and oxidative stress, endoplasmic reticulum stress, abnormal gut microbiome and chronic low-grade inflammation. Recently, in view of potential effects on lipid metabolism, glucose metabolism, cholesterol metabolism and intestinal microbiome, as well as anti-oxidative and anti-inflammatory activities, natural probiotics, including live and dead probiotics, and probiotic components and metabolites, have attracted increasing attention and are considered as novel strategies for preventing and ameliorating obesity and obesity-related chronic diseases. Specifically, this review is presented on the anti-obesity effects of probiotics and underlying molecular mechanisms, which will provide a theoretical basis of anti-obesity probiotics for the development of functional foods.
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Affiliation(s)
- Chao Tang
- College of Food Science & Technology, Nanjing Agricultural University, Nanjing 210095, China
| | - Liangyu Kong
- College of Food Science & Technology, Nanjing Agricultural University, Nanjing 210095, China
| | - Mengyuan Shan
- College of Food Science & Technology, Nanjing Agricultural University, Nanjing 210095, China
| | - Zhaoxin Lu
- College of Food Science & Technology, Nanjing Agricultural University, Nanjing 210095, China.
| | - Yingjian Lu
- College of Food Science & Engineering, Nanjing University of Finance and Economics, Nanjing 210023, China.
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36
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Microwave-induced deformation behaviors of 4D printed starch-based food products as affected by edible salt and butter content. INNOV FOOD SCI EMERG 2021. [DOI: 10.1016/j.ifset.2021.102699] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
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37
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Zhao Y, Feng Y, Jing X, Liu Y, Liu A. Structural Characterization of an Alkali-Soluble Polysaccharide from Angelica sinensis and Its Antitumor Activity in Vivo. Chem Biodivers 2021; 18:e2100089. [PMID: 33893719 DOI: 10.1002/cbdv.202100089] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2021] [Accepted: 04/23/2021] [Indexed: 12/24/2022]
Abstract
A novel alkali-soluble polysaccharide (AASP) was isolated from Angelica sinensis (Oliv.) Diels under aqueous alkali treatment, and its structural characterization and antitumor activity in Vivo were evaluated in present study. Results of HPGPC and IC revealed that AASP was a neutral polysaccharide containing Ara, Gal and Glc in the mole ratio of 1.00 : 2.26 : 24.43, with the average molecular weight of 4.7 kDa. Periodate oxidation, Smith degradation, methylation, FT-IR, and NMR analyses further demonstrated that a preliminary structure of AASP was proposed as follows: (1→3)-linked arabinose, (1→6)-linked galactose, and (1→), (1→4), (1→6), (1→3,6)-linked glucose with α- and β-configuration. In Vivo antitumor assays, AASP exhibited prominent antitumor effects on H22 hepatoma cells with an inhibitory ratio of 48.57 % and effectively protected thymuses and spleens of tumor-bearing mice. Besides, AASP displayed a proliferation stimulating activity of immunocytes (splenocytes, peritoneal macrophages and natural killer cells), and an auxo-action for cytokines release (TNF-α, IL-2 and IFN-γ), leading to the apoptosis of H22 solid tumors cells via G0/G1 phase arrested. The above data demonstrated that AASP holds great application potential to be a safe and effective antitumor supplement in the future.
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Affiliation(s)
- Yan Zhao
- College of Food Science and Engineering, Tianjin University of Science and Technology, Tianjin, 300457, P. R. China
| | - Yingying Feng
- College of Food Science and Engineering, Tianjin University of Science and Technology, Tianjin, 300457, P. R. China
| | - Xue Jing
- College of Food Science and Engineering, Tianjin University of Science and Technology, Tianjin, 300457, P. R. China
| | - Yining Liu
- College of Food Science and Engineering, Tianjin University of Science and Technology, Tianjin, 300457, P. R. China
| | - Anjun Liu
- College of Food Science and Engineering, Tianjin University of Science and Technology, Tianjin, 300457, P. R. China
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38
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Du P, Song J, Qiu H, Liu H, Zhang L, Zhou J, Jiang S, Liu J, Zheng Y, Wang M. Polyphenols Extracted from Shanxi-Aged Vinegar Inhibit Inflammation in LPS-Induced RAW264.7 Macrophages and ICR Mice via the Suppression of MAPK/NF-κB Pathway Activation. Molecules 2021; 26:molecules26092745. [PMID: 34067016 PMCID: PMC8124351 DOI: 10.3390/molecules26092745] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2021] [Revised: 05/03/2021] [Accepted: 05/04/2021] [Indexed: 12/27/2022] Open
Abstract
Shanxi-aged vinegar, a traditional Chinese grain-fermented food that is rich in polyphenols, has been shown to have therapeutic effects on a variety of diseases. However, there has been no comprehensive evaluation of the anti-inflammatory activity of polyphenols extracted from Shanxi-aged vinegar (SAVEP) to date. The anti-inflammatory activities of SAVEP, both in RAW 264.7 macrophages and mice, were extensively investigated for the potential application of SAVEP as a novel anti-inflammatory agent. In order to confirm the notion that polyphenols could improve inflammatory symptoms, SAVEP was firstly detected by gas chromatography mass spectrometry (GC-MS). In total, 19 polyphenols were detected, including 12 phenolic acids. The study further investigated the protective effect of SAVEP on lipopolysaccharide-induced inflammation in RAW264.7 macrophages and ICR mice. The results showed that compared with those of the model group, SAVEP could remarkably recover the inflammation of macrophage RAW264.7 and ICR mice. SAVEP can normalise the expression of related proteins via the suppression of MAPK/NF-κB pathway activation, inhibiting the expression of iNOS and COX-2 proteins, and consequently the production of inflammatory factors, thus alleviating inflammatory stress. These results suggest that SAVEP may have a potential function against inflammation.
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Affiliation(s)
- Peng Du
- Key Laboratory of Industrial Fermentation Microbiology (Tianjin University of Science and Technology), Ministry of Education, Tianjin 300457, China; (P.D.); (H.Q.); (H.L.); (L.Z.); (J.Z.)
- State Key Laboratory of Food Nutrition and Safety, Tianjin Engineering Research Center of Microbial Metabolism and Fermentation Process Control, College of Biotechnology, Tianjin University of Science & Technology, Tianjin 300457, China
| | - Jia Song
- Key Laboratory of Industrial Fermentation Microbiology (Tianjin University of Science and Technology), Ministry of Education, Tianjin 300457, China; (P.D.); (H.Q.); (H.L.); (L.Z.); (J.Z.)
- State Key Laboratory of Food Nutrition and Safety, Tianjin Engineering Research Center of Microbial Metabolism and Fermentation Process Control, College of Biotechnology, Tianjin University of Science & Technology, Tianjin 300457, China
- Correspondence: (J.S.); (Y.Z.); (M.W.); Tel.: +86-022-60601256 (J.S.); +86-022-60601256 (Y.Z.); +86-022-60600045 (M.W.)
| | - Huirui Qiu
- Key Laboratory of Industrial Fermentation Microbiology (Tianjin University of Science and Technology), Ministry of Education, Tianjin 300457, China; (P.D.); (H.Q.); (H.L.); (L.Z.); (J.Z.)
- State Key Laboratory of Food Nutrition and Safety, Tianjin Engineering Research Center of Microbial Metabolism and Fermentation Process Control, College of Biotechnology, Tianjin University of Science & Technology, Tianjin 300457, China
| | - Haorui Liu
- Key Laboratory of Industrial Fermentation Microbiology (Tianjin University of Science and Technology), Ministry of Education, Tianjin 300457, China; (P.D.); (H.Q.); (H.L.); (L.Z.); (J.Z.)
| | - Li Zhang
- Key Laboratory of Industrial Fermentation Microbiology (Tianjin University of Science and Technology), Ministry of Education, Tianjin 300457, China; (P.D.); (H.Q.); (H.L.); (L.Z.); (J.Z.)
| | - Junhan Zhou
- Key Laboratory of Industrial Fermentation Microbiology (Tianjin University of Science and Technology), Ministry of Education, Tianjin 300457, China; (P.D.); (H.Q.); (H.L.); (L.Z.); (J.Z.)
| | - Shengping Jiang
- Research Center for Modern Analysis Techniques, Tianjin University of Science & Technology, Tianjin 300457, China; (S.J.); (J.L.)
| | - Jinyu Liu
- Research Center for Modern Analysis Techniques, Tianjin University of Science & Technology, Tianjin 300457, China; (S.J.); (J.L.)
| | - Yu Zheng
- Key Laboratory of Industrial Fermentation Microbiology (Tianjin University of Science and Technology), Ministry of Education, Tianjin 300457, China; (P.D.); (H.Q.); (H.L.); (L.Z.); (J.Z.)
- State Key Laboratory of Food Nutrition and Safety, Tianjin Engineering Research Center of Microbial Metabolism and Fermentation Process Control, College of Biotechnology, Tianjin University of Science & Technology, Tianjin 300457, China
- Correspondence: (J.S.); (Y.Z.); (M.W.); Tel.: +86-022-60601256 (J.S.); +86-022-60601256 (Y.Z.); +86-022-60600045 (M.W.)
| | - Min Wang
- Key Laboratory of Industrial Fermentation Microbiology (Tianjin University of Science and Technology), Ministry of Education, Tianjin 300457, China; (P.D.); (H.Q.); (H.L.); (L.Z.); (J.Z.)
- State Key Laboratory of Food Nutrition and Safety, Tianjin Engineering Research Center of Microbial Metabolism and Fermentation Process Control, College of Biotechnology, Tianjin University of Science & Technology, Tianjin 300457, China
- Correspondence: (J.S.); (Y.Z.); (M.W.); Tel.: +86-022-60601256 (J.S.); +86-022-60601256 (Y.Z.); +86-022-60600045 (M.W.)
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Shang ZZ, Xu TT, Wang CQ, Li QM, Zha XQ, Pan LH, Luo JP. Bioactivity-guided investigation for isolation and immunoregulatory potential of polysaccharides from Dendrobium chrysotoxum stems. Process Biochem 2021. [DOI: 10.1016/j.procbio.2021.03.014] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Wang H, Xu X, Yin Z, Wang M, Wang B, Ma C, Wang J, Kang W. Activation of RAW264.7 cells by PCp-I, a polysaccharide from Psoralea corylifolia L, through NF- κB/MAPK signalling pathway. Int J Immunopathol Pharmacol 2021; 35:20587384211010058. [PMID: 33855900 PMCID: PMC8058790 DOI: 10.1177/20587384211010058] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
PCp-I is a polysaccharide isolated and identified from the Psoralea corylifolia L. by our research group. In this study, the immunomodulatory effects of PCp-I on RAW264.7 cells was evaluated. PCp-I could enhance the level of NO along with up-regulation of iNOS mRNA in RAW264.7 cells. The PCp-I could significantly up-regulate the mRNA expression of TNF-α and IL-6 in RAW264.7 cells, and then the expression of TNF-α, IL-6, ROS and the phagocytic activity were increased. Additionally, PCp-I could significantly up-regulate the phosphorylation level of p65, p38, ERK and JNK proteins, which proved that PCp-I could activate the macrophages by MAPKs and NF-κB signalling pathway and the TLR4 may be one of the receptors of PCp-I regulate the RAW264.7 cells.
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Affiliation(s)
- Honglin Wang
- National R & D Center for Edible Fungus Processing Technology, Henan University, Kaifeng, China.,Joint International Research Laboratory of Food & Medicine Resource Function, Henan Province, Kaifeng, China
| | - Xiaoqing Xu
- National R & D Center for Edible Fungus Processing Technology, Henan University, Kaifeng, China.,Joint International Research Laboratory of Food & Medicine Resource Function, Henan Province, Kaifeng, China
| | - Zhenhua Yin
- National R & D Center for Edible Fungus Processing Technology, Henan University, Kaifeng, China.,Zhengzhou City Key Laboratory of Medicinal Resources Research, Huanghe Science and Technology College, Zhengzhou, China
| | - Mengke Wang
- National R & D Center for Edible Fungus Processing Technology, Henan University, Kaifeng, China.,Kaifeng Key Laboratory of Functional Components in Health Food, Henan University, Kaifeng, China
| | - Baoguang Wang
- National R & D Center for Edible Fungus Processing Technology, Henan University, Kaifeng, China.,Kaifeng Key Laboratory of Functional Components in Health Food, Henan University, Kaifeng, China
| | - Changyang Ma
- National R & D Center for Edible Fungus Processing Technology, Henan University, Kaifeng, China.,Joint International Research Laboratory of Food & Medicine Resource Function, Henan Province, Kaifeng, China
| | - Jinmei Wang
- National R & D Center for Edible Fungus Processing Technology, Henan University, Kaifeng, China.,Kaifeng Key Laboratory of Functional Components in Health Food, Henan University, Kaifeng, China
| | - Wenyi Kang
- National R & D Center for Edible Fungus Processing Technology, Henan University, Kaifeng, China.,Joint International Research Laboratory of Food & Medicine Resource Function, Henan Province, Kaifeng, China
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41
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Ji C, Zhang Z, Zhang B, Chen J, Liu R, Song D, Li W, Lin N, Zou X, Wang J, Guo S. Purification, characterization, and in vitro antitumor activity of a novel glucan from the purple sweet potato Ipomoea Batatas (L.) Lam. Carbohydr Polym 2021; 257:117605. [DOI: 10.1016/j.carbpol.2020.117605] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2020] [Revised: 12/17/2020] [Accepted: 12/30/2020] [Indexed: 12/13/2022]
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Molecular structure features and lactic acid fermentation behaviors of water- and alkali-soluble polysaccharides from Dendrobium officinale. Journal of Food Science and Technology 2021; 58:532-540. [PMID: 33568846 DOI: 10.1007/s13197-020-04564-6] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Revised: 05/17/2020] [Accepted: 05/28/2020] [Indexed: 12/27/2022]
Abstract
One water-soluble polysaccharide (WDOP) and three alkali-soluble polysaccharides (ADOP1, ADOP2 and ADOP3) were successfully obtained from Dendrobium officinale. Molecular structure of the polysaccharides was analyzed, and in vitro lactic acid fermentation of the polysaccharides by lactic acid bacteria (LAB) and bifidobacteria was performed. All the polysaccharides exerted proliferative effect on the LAB and bifidobacteria. ADOP2 was the most effective one, followed by WDOP. This could be attributed to their molecular structure features, such as a high level of total sugar, uronic acid and reducing sugar, an abundance of glucose and mannose, and a low and middle weight-average molecular weight. ADOP2 and WDOP produced more short-chain fatty acids (SCFAs) than ADOP1 and ADOP3 did during lactic acid fermentation. Propionic and acetic acids were the main SCFAs produced. These findings are useful for understanding the structure-activity relationship of D. officinale polysaccharides in lactic acid fermentation, and for developing new functional foods and beverages from D. officinale.
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Anwar M, McConnell M, Bekhit AED. New freeze-thaw method for improved extraction of water-soluble non-starch polysaccharide from taro (Colocasia esculenta): Optimization and comprehensive characterization of physico-chemical and structural properties. Food Chem 2021; 349:129210. [PMID: 33582541 DOI: 10.1016/j.foodchem.2021.129210] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2020] [Revised: 01/05/2021] [Accepted: 01/24/2021] [Indexed: 11/16/2022]
Abstract
This study investigated the effects of an improved extraction method that utilized freeze-thaw, termed improved conventional extraction (ICE), on the yield and properties of the water-soluble non-starch polysaccharide of taro (Tc-WS-NSP) and compared this method to the conventional extraction (CE) method. The freeze-thaw condition was optimized using response surface methodology (RSM) based on yield. The use of the ICE method resulted in a 227.8% increase in yield of Tc-WS-NSP compared to the CE method. The Tc-WS-NSP-ICE had higher purity, lighter color, larger particle size, and higherζ-potential than Tc-WS-NSP-CE. Both of the samples contain the sugar arabinose, galactose, glucose, and mannose and exhibited comparative FTIR, 1H, and 13C NMR spectra. The Tc-WS-NSP-ICE had a semi-crystalline structure resulting in higher thermal stability and had a higher consistency index than Tc-WS-NSP-CE. Overall, the use of the ICE method provided a simple, efficient, and green alternative to CE for the extraction of Tc-WS-NSP.
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Affiliation(s)
- Mylene Anwar
- Department of Food Science, University of Otago PO Box 56, Dunedin 9054, New Zealand; Department of Food Science, Central Mindanao University, University Town, Musuan 8714, Maramag, Bukidnon, Philippines.
| | - Michelle McConnell
- Department of Microbiology and Immunology, University of Otago PO Box 56, Dunedin 9054, New Zealand
| | - Alaa El-Din Bekhit
- Department of Food Science, University of Otago PO Box 56, Dunedin 9054, New Zealand.
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44
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Structural properties and in vitro and in vivo immunomodulatory activity of an arabinofuranan from the fruits of Akebia quinata. Carbohydr Polym 2020; 256:117521. [PMID: 33483042 DOI: 10.1016/j.carbpol.2020.117521] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2020] [Revised: 11/28/2020] [Accepted: 12/11/2020] [Indexed: 01/25/2023]
Abstract
In our continuous searching for natural active polysaccharides with immunomodulatory activity, an arabinofuranan (AQP70-3) was isolated and purified from the fruits of Akebia quinata (Houtt.) Decne. by using ion-exchange chromatography and gel permeation chromatography for the first time. AQP70-3 contained both α-l-Araf and β-l-Araf, and the absolute molecular weight was 1.06 × 104 g/mol. The backbone of AQP70-3 comprised →5)-α-l-Araf-(1→, →3,5)-α-l-Araf-(1→, and →2,5)-α-l-Araf-(1→, with branches of →1)-β-l-Arafand →3)-α-l-Araf-(1→ residues. Biological assay suggested that AQP70-3 can stimulate phagocytic activity and promote the levels of nitric oxide (NO), interleukin (IL)-6, IL-1β, and tumor necrosis factor-α (TNF-α) of RAW264.7 cells. Furthermore, AQP70-3 was found to increase the production of reactive oxygen species (ROS) and NO in zebrafish embryo model.
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45
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Anwar M, Birch EJ, Ding Y, Bekhit AED. Water-soluble non-starch polysaccharides of root and tuber crops: extraction, characteristics, properties, bioactivities, and applications. Crit Rev Food Sci Nutr 2020; 62:2309-2341. [DOI: 10.1080/10408398.2020.1852388] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Mylene Anwar
- Department of Food Science, University of Otago, Dunedin, New Zealand
- Department of Food Science, Central Mindanao University, Musuan, Maramag, Bukidnon, Philippines
| | - Edward John Birch
- Department of Food Science, University of Otago, Dunedin, New Zealand
| | - Yu Ding
- Department of Food Science and Technology, Institute of Food Safety and Nutrition, College of Science and Engineering, College of Life Science and Technology, Jinan University, Guangzhou, PR China
- Guangdong Institute of Microbiology, Guangdong Academy of Sciences, State Key Laboratory of Applied Microbiology Southern China, Guangdong Provincial Key Laboratory of Microbial Culture Collection and Application, Guangdong Open Laboratory of Applied Microbiology, Guangzhou, PR China
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Tang C, Meng F, Pang X, Chen M, Zhou L, Lu Z, Lu Y. Protective effects of Lactobacillus acidophilus NX2-6 against oleic acid-induced steatosis, mitochondrial dysfunction, endoplasmic reticulum stress and inflammatory responses. J Funct Foods 2020. [DOI: 10.1016/j.jff.2020.104206] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
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47
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Huo J, Wu J, Sun B, Zhao M, Sun W, Sun J, Huang M. Isolation, purification, structure characterization of a novel glucan from Huangshui, a byproduct of Chinese Baijiu, and its immunomodulatory activity in LPS-stimulated THP-1 cells. Int J Biol Macromol 2020; 161:406-416. [DOI: 10.1016/j.ijbiomac.2020.06.028] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2020] [Revised: 06/01/2020] [Accepted: 06/03/2020] [Indexed: 12/13/2022]
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48
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He C, Zhang M, Devahastin S. Investigation on Spontaneous Shape Change of 4D Printed Starch-Based Purees from Purple Sweet Potatoes As Induced by Microwave Dehydration. ACS APPLIED MATERIALS & INTERFACES 2020; 12:37896-37905. [PMID: 32805972 DOI: 10.1021/acsami.0c10899] [Citation(s) in RCA: 33] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
The time evolution of three-dimensional (3D) printed food structures as affected by their composition and postprinting stimulus is an area of research that has recently received increasing attention. In this study, the spontaneous shape change of 3D printed purple sweet potato purees of different formulations as triggered by microwave dehydration was investigated. The rheological properties, water distribution behavior, and dielectric properties of the purees were first studied. Addition of salt reduced the viscosity, storage modulus, loss modulus, and yield stress but increased the relaxation time of the purees. Addition of fructose syrup resulted in opposite results. Addition of both salt and syrup decreased the dielectric constant but increased the dielectric loss of the purees. Increased microwave power and salt content increased the rates of dehydration and deformation but decreased the maximum deformation degree of the printed samples. The syrup also decreased the maximum deformation degree. A desirable deformation pattern could also be achieved by manipulating the infill parameters. Transformation of two-dimensional planar flowers and butterflies into 3D configurations as a result of varying the aforementioned parameters is illustrated. The proposed technique to induce spontaneous shape change of a 3D printed starch-based product should lay a foundation for further application of four-dimensional food printing.
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Affiliation(s)
- Chang He
- State Key Laboratory of Food Science and Technology, Jiangnan University, 214122 Wuxi, Jiangsu, China
- Jiangsu Province Key Laboratory of Advanced Food Manufacturing Equipment and Technology, Jiangnan University, 214122 Wuxi, Jiangsu, China
| | - Min Zhang
- State Key Laboratory of Food Science and Technology, Jiangnan University, 214122 Wuxi, Jiangsu, China
- International Joint Laboratory on Food Safety, Jiangnan University, 214122 Wuxi, Jiangsu, China
| | - Sakamon Devahastin
- Advanced Food Processing Research Laboratory, Department of Food Engineering, Faculty of Engineering, King Mongkut's University of Technology Thonburi, 126 Pracha u-tid Road, 10140 Bangkok, Thailand
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49
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Han X, Bai B, Zhou Q, Niu J, Yuan J, Zhang H, Jia J, Zhao W, Chen H. Dietary supplementation with polysaccharides from Ziziphus Jujuba cv. Pozao intervenes in immune response via regulating peripheral immunity and intestinal barrier function in cyclophosphamide-induced mice. Food Funct 2020; 11:5992-6006. [PMID: 32697211 DOI: 10.1039/d0fo00008f] [Citation(s) in RCA: 32] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Ziziphus Jujuba cv. Pozao has been consumed as a traditional fruit with regional characteristics in China for a long time; however, fewer studies on polysaccharides from Ziziphus Jujuba cv. Pozao (JP) have been documented. This study aimed to evaluate the effect of oral administration of JP on cyclophosphamide-induced ICR mice for 28 days. The results showed that oral administration of JP could significantly improve the lymphocyte proliferation in the spleen and decrease the proportion of CD3+ and CD4+ and the ratio of CD4+/CD8+ in cyclophosphamide-induced mice in a dose-dependent manner. JP treatment also increased the levels of IL-2, IL-4, IL-10, IFN-γ, and TNF-α in serum and the intestine, and the improvement effects were proportional to the dose of JP. Similarly, JP significantly increased the levels of IgA and SIgA, as well as the expressions of Claudin-1 and Occludin in the intestine. Particularly, the expressions of Claudin-1 and Occludin were the best in the M-JP group. Furthermore, JP positively regulated the gut microbiota as indicated by the enriched microbiota diversity. At the phylum level, the relative abundance of Firmicutes was significantly decreased by JP, while that of Bacteroidetes was increased by JP treatment. More importantly, the ratio of Firmicutes/Bacteroidetes was significantly increased. And a high dose of JP is the most effective. At the genus level, the abundances of the Bacteroidales-S24-7-group, Lachnospiraceae, Alloprevotella, Alistipes and Bacteroides were increased by JP treatment. These results provided evidence for the regulating effect of JP on the peripheral immunity and intestinal barrier function in cyclophosphamide-induced hypoimmune mice.
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Affiliation(s)
- Xue Han
- Department of Nutritional and Food Safety, College of Food Science and Technology, Hebei Agricultural University, Baoding 071001, P. R. China.
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Biao Y, Jiannan H, Yaolan C, Shujie C, Dechun H, Julian Mcclements D, Chongjiang C. Identification and characterization of antioxidant and immune-stimulatory polysaccharides in flaxseed hull. Food Chem 2020; 315:126266. [DOI: 10.1016/j.foodchem.2020.126266] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2019] [Revised: 12/16/2019] [Accepted: 01/17/2020] [Indexed: 12/24/2022]
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