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Chang X, Liang Y, Shi F, Guo T, Wang Y. Biochemistry behind firmness retention of jujube fruit by combined treatment of acidic electrolyzed water and high-voltage electrostatic field. Food Chem X 2023; 19:100812. [PMID: 37780323 PMCID: PMC10534160 DOI: 10.1016/j.fochx.2023.100812] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2023] [Revised: 07/11/2023] [Accepted: 07/24/2023] [Indexed: 10/03/2023] Open
Abstract
Harvested jujube (Zizyphus jujuba Mill) is prone to softening due to active metabolism. This study investigated the effects of acidic electrolyzed water (AEW), high-voltage electrostatic field (HVEF) and their combination (AEW + HVEF) on softening and associated cell wall degrading enzymes (CWDEs), cell membrane integrity and antioxidant system of 'Huping' jujube during storage at 0 ± 1 °C. The results indicated that fruit subjected to AEW + HVEF, AEW or HVEF treatments maintained firmness 15.7%, 10.7%, and 5.3% higher than that of untreated control fruit at the end of 90 days cool storage. Fruit treated with AEW + HVEF could better maintain cell membrane integrity and exhibit lower activities of CWDEs and higher antioxidant capacity than that treated with either AEW or HVEF. Correlation analysis suggested that inhibition of softening was associated with reduction of CWDEs activities, and maintenance of membrane integrity and antioxidant system.
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Affiliation(s)
- Xiaojie Chang
- College of Horticulture, Shanxi Agricultural University, Taigu 030800, China
- Life Sciences Department, Yuncheng University, Yuncheng 044000, China
- Shanxi Center of Technology Innovation for High Value Added echelon Utilization of Premium Agro-Products, Yuncheng University, Yuncheng 044000, China
| | - Yueguang Liang
- College of Food Science and Engineering, Shanxi Agricultural University, Taigu 030800, China
| | - Fei Shi
- College of Food Science and Engineering, Shanxi Agricultural University, Taigu 030800, China
| | - Tianjing Guo
- College of Food Science and Engineering, Shanxi Agricultural University, Taigu 030800, China
| | - Yu Wang
- College of Horticulture, Shanxi Agricultural University, Taigu 030800, China
- College of Food Science and Engineering, Shanxi Agricultural University, Taigu 030800, China
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2
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Li J, Pan F, Yun Y, Tian J, Zhou L. Gelation behavior and mechanism of Nicandra physalodes (Linn.) Gaertn. seeds pectin induced by Glucono-delta-lactone. Carbohydr Polym 2023; 299:120151. [PMID: 36876778 DOI: 10.1016/j.carbpol.2022.120151] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2022] [Revised: 09/05/2022] [Accepted: 09/20/2022] [Indexed: 11/26/2022]
Abstract
In this study, the physicochemical properties of pectin from Nicandra physalodes (Linn.) Gaertn. seeds (NPGSP) were analysed firstly, and the rheological behavior, microstructure and gelation mechanism of NPGSP gels induced by Glucono-delta-lactone (GDL) were investigated. The hardness of NPGSP gels was increased from 26.27 g to 226.77 g when increasing GDL concentration from 0 % (pH = 4.0) to 1.35 % (pH = 3.0), and the thermal stability was improved. The peak around 1617 cm-1 was decreased as the adsorption peak of the free carboxyl groups was attenuated with addition of GDL. GDL increased the crystalline degree of NPGSP gels, and its microstructure exhibited more smaller spores. Molecular dynamics was performed on systems of pectin and gluconic acid (GDL hydrolysis product), indicating that inter-molecular hydrogen bonds and van der Waals forces were the main interactions to promote gels formation. Overall, NPGSP has the potential commercial value for developing as a thickener in food processing.
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Affiliation(s)
- Jian Li
- Faculty of Food Science and Engineering, Kunming University of Science and Technology, Kunming, Yunnan Province 650500, China.
| | - Fei Pan
- Beijing Technology and Business University, Beijing Engineering and Technology Research Center of Food Additives, Beijing 100048, China
| | - Yurou Yun
- Faculty of Food Science and Engineering, Kunming University of Science and Technology, Kunming, Yunnan Province 650500, China
| | - Jun Tian
- Faculty of Food Science and Engineering, Kunming University of Science and Technology, Kunming, Yunnan Province 650500, China
| | - Linyan Zhou
- Faculty of Food Science and Engineering, Kunming University of Science and Technology, Kunming, Yunnan Province 650500, China.
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3
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Li M, Zhang W, Zhang M, Yin Y, Liu Z, Hu X, Yi J. Effect of centrifugal pre-treatment on flavor change of cloudy orange juice: Interaction between pectin and aroma release. Food Chem 2021; 374:131705. [PMID: 34875437 DOI: 10.1016/j.foodchem.2021.131705] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2021] [Revised: 11/15/2021] [Accepted: 11/26/2021] [Indexed: 11/04/2022]
Abstract
Cloud loss of orange juice could be effectively inhibited by centrifugal treatment, but it can induce flavor changes, which become a new challenge for the industry. This work aims to investigate the effect of centrifugation on flavor changes in orange juice and explore its possible mechanism. Taste- and aroma-related attributes were analyzed, and pectin was characterized. Results indicated that pH (4.00), total soluble solid (9.67 °Brix), titratable acidity (0.42%), sucrose (44%), fructose (29%), and glucose (27%) were less affected by centrifugation (P > 0.05). However, aroma compounds significantly changed (P < 0.05), where terpenes and alcohols tended to be distributed in pulp and serum after centrifugation, respectively. Pearson correlation analysis showed that aroma compound distribution induced by centrifugation was highly related to chelator-solubilized pectin fraction and sodium carbonate-solubilized pectin fraction (|R| > 0.9). In general, centrifugation clearly changed aroma of orange juice, which was mainly affected by pectin characteristics.
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Affiliation(s)
- Minbo Li
- Faculty of Food Science and Engineering, Yunnan Institute of Food Safety, Kunming University of Science and Technology, Kunming, Yunnan Province 650500, China
| | - Wanzhen Zhang
- Faculty of Food Science and Engineering, Yunnan Institute of Food Safety, Kunming University of Science and Technology, Kunming, Yunnan Province 650500, China
| | - Maiqi Zhang
- Faculty of Food Science and Engineering, Yunnan Institute of Food Safety, Kunming University of Science and Technology, Kunming, Yunnan Province 650500, China
| | - Yihao Yin
- Faculty of Food Science and Engineering, Yunnan Institute of Food Safety, Kunming University of Science and Technology, Kunming, Yunnan Province 650500, China
| | - Zhijia Liu
- Faculty of Food Science and Engineering, Yunnan Institute of Food Safety, Kunming University of Science and Technology, Kunming, Yunnan Province 650500, China
| | - Xiaosong Hu
- Faculty of Food Science and Engineering, Yunnan Institute of Food Safety, Kunming University of Science and Technology, Kunming, Yunnan Province 650500, China; College of Food Science and Nutritional Engineering, China Agricultural University, Beijing 100083, China
| | - Junjie Yi
- Faculty of Food Science and Engineering, Yunnan Institute of Food Safety, Kunming University of Science and Technology, Kunming, Yunnan Province 650500, China.
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4
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Yang N, Li Y, Xing F, Wang X, Li X, Li L, Yang J, Wang Y, Zhang M. Composition and structural characterization of pectin in micropropagated and conventional plants of Premma puberula Pamp. Carbohydr Polym 2021; 260:117711. [PMID: 33712120 DOI: 10.1016/j.carbpol.2021.117711] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2020] [Revised: 01/15/2021] [Accepted: 01/24/2021] [Indexed: 11/26/2022]
Abstract
The metabolites produced by plants can be enhanced by plant tissue culture. In Premma puberula Pamp., the pectin content in leaves is 30 %-40 %, and it is widely used in the food industry and medicine. However, inefficient propagation has seriously restricted the utilization of pectin resources. Therefore, we established an efficient micropropagation technology for P. puberula through comparative analysis in mature leaves of regenerated and conventionally propagated plants. The results showed that the pectin composition of their leaves was similar in terms of galacturonic acid, monosaccharide composition, degree of esterification, functional groups, nuclear magnetic resonance spectrum and morphological characteristics. Furthermore, micropropagated plants had better hardness, gumminess and chewiness characteristics than conventionally propagated plants and were similar in emulsion stability, adhesiveness, springiness, cohesiveness and viscoelasticity. Therefore, micropropagation technology will provide an important guarantee for the industrial production of pectin from P. puberula. The technical essentials include callus induction, embryoid formation, and root induction, followed by acclimatization and transplanting.
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Affiliation(s)
- Ningxian Yang
- Key Laboratory of Plant Resource Conservation and Germplasm Innovation in Mountainous Region (Ministry of Education), Collaborative Innovation Center for Mountain Ecology & Agro-Bioengineering (CICMEAB), College of Life Sciences/Institute of Agro-bioengineering, Guizhou University, Guiyang, 550025, Guizhou, PR China; Guiyang Nursing Vocational College, Guiyang, 550081, Guizhou, PR China
| | - Yang Li
- Key Laboratory of Plant Resource Conservation and Germplasm Innovation in Mountainous Region (Ministry of Education), Collaborative Innovation Center for Mountain Ecology & Agro-Bioengineering (CICMEAB), College of Life Sciences/Institute of Agro-bioengineering, Guizhou University, Guiyang, 550025, Guizhou, PR China
| | - Feifei Xing
- Key Laboratory of Plant Resource Conservation and Germplasm Innovation in Mountainous Region (Ministry of Education), Collaborative Innovation Center for Mountain Ecology & Agro-Bioengineering (CICMEAB), College of Life Sciences/Institute of Agro-bioengineering, Guizhou University, Guiyang, 550025, Guizhou, PR China
| | - Xiaohong Wang
- Key Laboratory of Plant Resource Conservation and Germplasm Innovation in Mountainous Region (Ministry of Education), Collaborative Innovation Center for Mountain Ecology & Agro-Bioengineering (CICMEAB), College of Life Sciences/Institute of Agro-bioengineering, Guizhou University, Guiyang, 550025, Guizhou, PR China
| | - Xue Li
- Key Laboratory of Plant Resource Conservation and Germplasm Innovation in Mountainous Region (Ministry of Education), Collaborative Innovation Center for Mountain Ecology & Agro-Bioengineering (CICMEAB), College of Life Sciences/Institute of Agro-bioengineering, Guizhou University, Guiyang, 550025, Guizhou, PR China
| | - Lin Li
- Key Laboratory of Plant Resource Conservation and Germplasm Innovation in Mountainous Region (Ministry of Education), Collaborative Innovation Center for Mountain Ecology & Agro-Bioengineering (CICMEAB), College of Life Sciences/Institute of Agro-bioengineering, Guizhou University, Guiyang, 550025, Guizhou, PR China
| | - Jiao Yang
- Key Laboratory of Plant Resource Conservation and Germplasm Innovation in Mountainous Region (Ministry of Education), Collaborative Innovation Center for Mountain Ecology & Agro-Bioengineering (CICMEAB), College of Life Sciences/Institute of Agro-bioengineering, Guizhou University, Guiyang, 550025, Guizhou, PR China
| | - Yanqiu Wang
- Key Laboratory of Plant Resource Conservation and Germplasm Innovation in Mountainous Region (Ministry of Education), Collaborative Innovation Center for Mountain Ecology & Agro-Bioengineering (CICMEAB), College of Life Sciences/Institute of Agro-bioengineering, Guizhou University, Guiyang, 550025, Guizhou, PR China
| | - Mingsheng Zhang
- Key Laboratory of Plant Resource Conservation and Germplasm Innovation in Mountainous Region (Ministry of Education), Collaborative Innovation Center for Mountain Ecology & Agro-Bioengineering (CICMEAB), College of Life Sciences/Institute of Agro-bioengineering, Guizhou University, Guiyang, 550025, Guizhou, PR China.
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Sabater C, Blanco-Doval A, Margolles A, Corzo N, Montilla A. Artichoke pectic oligosaccharide characterisation and virtual screening of prebiotic properties using in silico colonic fermentation. Carbohydr Polym 2020; 255:117367. [PMID: 33436200 DOI: 10.1016/j.carbpol.2020.117367] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2020] [Revised: 10/20/2020] [Accepted: 11/01/2020] [Indexed: 02/07/2023]
Abstract
The aim of this work was to develop a comprehensive workflow to elucidate molecular features of artichoke pectic oligosaccharides (POS) contributing to high potential prebiotic activity. First, obtainment of artichoke POS by Pectinex® Ultra-Olio was optimised using an artificial neural network. Under optimal conditions (pH 6.86; 1.5 h; enzyme dose 520.5 U/g pectin) POS yield was 624 mg/g pectin. Oligosaccharide structures (Mw < 1.3 kDa) were characterised by MALDI-TOF-MS. Then, conformational analysis of glycosidic bonds was performed by replica exchange molecular dynamics simulations and interaction mechanisms between POS and several microbial glycosidases were proposed by molecular modelling. Chemical information was integrated in virtual simulations of colonic fermentation. Highest hydrolysis rate was obtained for GalA-Rha-GalA trisaccharide, while the presence of partial negative charges and high radius of gyration enhance short chain fatty acid formation in distal colon. Established structure-activity relationships could help the rational design of prebiotics and clinical trials.
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Affiliation(s)
- Carlos Sabater
- Instituto de Investigación en Ciencias de la Alimentación CIAL, (CSIC-UAM) CEI (UAM + CSIC), C/Nicolás Cabrera, 9, E-28049, Madrid, Spain; Department of Microbiology and Biochemistry of Dairy Products, Instituto de Productos Lácteos de Asturias (IPLA), Consejo Superior de Investigaciones Científicas (CSIC), Paseo Río Linares S/N, Villaviciosa, 33300, Asturias, Spain; Instituto de Investigación Sanitaria del Principado de Asturias (ISPA), Oviedo, 33011, Asturias, Spain
| | - Ana Blanco-Doval
- Instituto de Investigación en Ciencias de la Alimentación CIAL, (CSIC-UAM) CEI (UAM + CSIC), C/Nicolás Cabrera, 9, E-28049, Madrid, Spain
| | - Abelardo Margolles
- Department of Microbiology and Biochemistry of Dairy Products, Instituto de Productos Lácteos de Asturias (IPLA), Consejo Superior de Investigaciones Científicas (CSIC), Paseo Río Linares S/N, Villaviciosa, 33300, Asturias, Spain; Instituto de Investigación Sanitaria del Principado de Asturias (ISPA), Oviedo, 33011, Asturias, Spain.
| | - Nieves Corzo
- Instituto de Investigación en Ciencias de la Alimentación CIAL, (CSIC-UAM) CEI (UAM + CSIC), C/Nicolás Cabrera, 9, E-28049, Madrid, Spain
| | - Antonia Montilla
- Instituto de Investigación en Ciencias de la Alimentación CIAL, (CSIC-UAM) CEI (UAM + CSIC), C/Nicolás Cabrera, 9, E-28049, Madrid, Spain
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6
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Deng LZ, Pan Z, Zhang Q, Liu ZL, Zhang Y, Meng JS, Gao ZJ, Xiao HW. Effects of ripening stage on physicochemical properties, drying kinetics, pectin polysaccharides contents and nanostructure of apricots. Carbohydr Polym 2019; 222:114980. [PMID: 31320051 DOI: 10.1016/j.carbpol.2019.114980] [Citation(s) in RCA: 45] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2019] [Revised: 05/30/2019] [Accepted: 06/06/2019] [Indexed: 01/07/2023]
Abstract
Effects of ripeness (four stages from the lowest to highest degree-I, II, III, and IV) on the physicochemical properties, pectin contents and nanostructure, and drying kinetics of apricots were investigated. The color values (L*, a*, and b*) and total soluble solid content increased during ripening, while the titratable acidity content and hardness decreased. The water-soluble pectin content increased as ripening progressed, but the chelate- and sodium carbonate-soluble pectin contents gradually declined. Atomic force microscopy imaging indicated that the pectin depolymerization occurred during ripening. Fruits at stage III obtained the highest drying rate, and the drying time was reduced by 27.27%, 17.24%, and 7.69% compared to those of stage I, II and IV, respectively. Results showed that the ripeness had significant influence on the drying kinetics, which is related to the modification of physicochemical and pectic properties. The ripeness classification is an essential operation for achieving effective drying process.
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Affiliation(s)
- Li-Zhen Deng
- College of Engineering, China Agricultural University, P.O. Box 194, 17 Qinghua Donglu, Beijing, 100083, China; Engineering Research Center for Modern Agricultural Equipment & Facilities, Ministry of Education, Beijing 100083, China
| | - Zhongli Pan
- Department of Biological and Agricultural Engineering, University of California, One Shields Avenue, Davis, CA 95616, USA
| | - Qian Zhang
- College of Mechanical and Electrical Engineering, Shihezi University, Shihezi 832001, China
| | - Zi-Liang Liu
- College of Engineering, China Agricultural University, P.O. Box 194, 17 Qinghua Donglu, Beijing, 100083, China; Engineering Research Center for Modern Agricultural Equipment & Facilities, Ministry of Education, Beijing 100083, China
| | - Yang Zhang
- College of Engineering, China Agricultural University, P.O. Box 194, 17 Qinghua Donglu, Beijing, 100083, China; Engineering Research Center for Modern Agricultural Equipment & Facilities, Ministry of Education, Beijing 100083, China
| | - Jian-Sheng Meng
- College of Engineering, China Agricultural University, P.O. Box 194, 17 Qinghua Donglu, Beijing, 100083, China; ShangQiu Food and Drug Administration, ShangQiu, Henan Province 476000, China
| | - Zhen-Jiang Gao
- College of Engineering, China Agricultural University, P.O. Box 194, 17 Qinghua Donglu, Beijing, 100083, China; Engineering Research Center for Modern Agricultural Equipment & Facilities, Ministry of Education, Beijing 100083, China
| | - Hong-Wei Xiao
- College of Engineering, China Agricultural University, P.O. Box 194, 17 Qinghua Donglu, Beijing, 100083, China; Engineering Research Center for Modern Agricultural Equipment & Facilities, Ministry of Education, Beijing 100083, China.
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7
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Han D, Cao C, Su Y, Wang J, Sun J, Chen H, Xu A. Ginkgo biloba exocarp extracts inhibits angiogenesis and its effects on Wnt/β-catenin-VEGF signaling pathway in Lewis lung cancer. J Ethnopharmacol 2016; 192:406-412. [PMID: 27649680 DOI: 10.1016/j.jep.2016.09.018] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/06/2016] [Revised: 08/26/2016] [Accepted: 09/07/2016] [Indexed: 06/06/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE A fruit of Ginkgo biloba L. also known as Ginkgo biloba, can be used for the treatment of cancer in Chinese traditional medicine. The scientific name of succulent skin, which is the episperm of Ginkgo nuts, is exocarp. Experiment shows that Ginkgo biloba exocarp extracts (GBEE) has the effects of immune promotion, cancer inhibition and etc. AIM OF STUDY Study on the activity of GBEE against Lewis lung cancer (LLC) angiogenesis and its partial molecular mechanism. MATERIALS AND METHODS The effect of GBEE on proliferation of LLC cells was detected by MTT method in vitro. The metastasis model of LLC was set up. The C57BL/6J mice were randomly separated into normal control, model control, positive control and GBEE (50, 100, 200mg/kg) treatment groups, n=10. The mice in normal group and model group were both intragastric gavage (i.g.) normal saline (NS) in a volume of 0.1mL/10g (b.w.), positive group were intraperitoneal (i.p.) injection cyclophosphamide (CPA) at a dose of 20mg/kg (b.w.) , the GBEE treatment groups were respectively i.g. GBEE 50, 100, and 200mg/kg (b.w.), once a day for 20d. After treatment, we calculated the tumor inhibition rate and anti-metastasis rate. The microvessel density (MVD) was measured by immunohistochemistry method in transplanted tumor. The expression levels of vascular en-dothelial growth factor (VEGF) and VEGFR2 mRNA or Wnt3a, β-catenin, VEGF, VEGFR2 and p-Akt/Akt protein expression were respectively tested by Quantitative Reverse transcription Polymerase chain reaction (qRT-PCR) or western blot in vitro and vivo. RESULTS GBEE suppressed the growth of LLC cells in a dose-dependent way at the dose of 5, 10, 20, 40, 80 and 160µg/mL in vitro. It can suppressed Wnt3a and β-catenin protein expression and the content of mRNA of VEGF and VEGFR2 in LLC cells significantly. In vivo, we discovered GBEE can retard the growth of LLC transplanted tumor in a dose-dependent way at the dose of 50, 100, 200mg/kg, suppressing tumor lung metastasis. The expression of CD34 was reduced, which means MVD was inhibited and so do β-catenin, VEGF, VEGFR2 and p-AKT/AKT protein expression and VEGF and VEGFR2 mRNA expression levels in LLC transplanted tumor of C57BL/6 mice. CONCLUSIONS GBEE played the effects of anti-tumor and anti-metastatic depending upon the inhibition of tumor angiogenesis, which may be closely relevant to its effect in blockage of Wnt /β-catenin-VEGF signaling pathway in LLC.
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MESH Headings
- Angiogenesis Inhibitors/isolation & purification
- Angiogenesis Inhibitors/pharmacology
- Animals
- Antineoplastic Agents, Phytogenic/isolation & purification
- Antineoplastic Agents, Phytogenic/pharmacology
- Carcinoma, Lewis Lung/blood supply
- Carcinoma, Lewis Lung/drug therapy
- Carcinoma, Lewis Lung/metabolism
- Carcinoma, Lewis Lung/secondary
- Cell Movement/drug effects
- Cell Proliferation/drug effects
- Cyclophosphamide/pharmacology
- Dose-Response Relationship, Drug
- Ginkgo biloba/chemistry
- Mice, Inbred C57BL
- Microvessels/drug effects
- Microvessels/metabolism
- Microvessels/pathology
- Neovascularization, Pathologic
- Phosphorylation
- Phytotherapy
- Plant Extracts/isolation & purification
- Plant Extracts/pharmacology
- Plants, Medicinal
- Proto-Oncogene Proteins c-akt/metabolism
- RNA, Messenger/genetics
- RNA, Messenger/metabolism
- Tumor Burden/drug effects
- Vascular Endothelial Growth Factor A/genetics
- Vascular Endothelial Growth Factor A/metabolism
- Vascular Endothelial Growth Factor Receptor-2/genetics
- Vascular Endothelial Growth Factor Receptor-2/metabolism
- Wnt Signaling Pathway/drug effects
- Wnt3A Protein/metabolism
- beta Catenin/metabolism
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Affiliation(s)
- Dongdong Han
- Department of Pharmacology, Medical College, Yangzhou University, Yangzhou 225001, Jiangsu, China
| | - Chengjie Cao
- Department of Pharmacology, Medical College, Yangzhou University, Yangzhou 225001, Jiangsu, China
| | - Ya Su
- Department of Pharmacology, Medical College, Yangzhou University, Yangzhou 225001, Jiangsu, China
| | - Jun Wang
- Department of Pharmacology, Medical College, Yangzhou University, Yangzhou 225001, Jiangsu, China
| | - Jian Sun
- Department of Combination of traditional Chinese and Western Medicine, Medical College, Yangzhou University, Yangzhou 225001, Jiangsu, China
| | - Huasheng Chen
- Department of Combination of traditional Chinese and Western Medicine, Medical College, Yangzhou University, Yangzhou 225001, Jiangsu, China
| | - Aihua Xu
- Department of Pharmacology, Medical College, Yangzhou University, Yangzhou 225001, Jiangsu, China; Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou 225009, Jiangsu, China.
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8
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Makhlouf-Gafsi I, Baklouti S, Mokni A, Danthine S, Attia H, Blecker C, Besbes S, Masmoudi M. Effect of ultrafiltration process on physico-chemical, rheological, microstructure and thermal properties of syrups from male and female date palm saps. Food Chem 2016; 203:175-182. [PMID: 26948603 DOI: 10.1016/j.foodchem.2016.02.055] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2015] [Revised: 01/12/2016] [Accepted: 02/09/2016] [Indexed: 10/22/2022]
Abstract
This study investigates the effect of the ultrafiltration process on physicochemical, rheological, microstructure and thermal properties of syrups from male and female date palm sap. All the studied syrups switched from pseudoplastic rheological behaviour (n=0.783) to Newtonian behaviour (n∼1) from 10 to 50 °C respectively and present similar thermal profiles. Results revealed that the ultrafiltration process significantly affects the rheological behaviour of the male and female syrups. These differences on rheological properties are attributed to the variation of chemical composition between sap and sap permeate syrups. Furthermore, the effect of temperature on viscosity of the syrups was investigated during heating and cooling processes at the same shear rate (50s(-1)). This study provides idea of the stability of the syrup by evaluating the area between heating and cooling curves. Actually, the syrup prepared from male sap permeate is the most stable between the four studied syrups.
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Affiliation(s)
- Ines Makhlouf-Gafsi
- University of Sfax/National School of Engineers of Sfax, Dept. of Biology, Laboratory of Analysis Valorisation and Food Safety, Soukra Road, 3038 Sfax, Tunisia
| | - Samia Baklouti
- University of Sfax/National School of Engineers of Sfax, Research Unit of Industrial Chemistry and Materials, Soukra Road, 3038, Tunisia
| | - Abir Mokni
- University of Sfax/National School of Engineers of Sfax, Dept. of Biology, Laboratory of Analysis Valorisation and Food Safety, Soukra Road, 3038 Sfax, Tunisia
| | - Sabine Danthine
- University of Liège, Gembloux Agro-Biotech, Lab. of Food Science and Formulation, Passage des Déportés, 2, 5030 Gembloux, Belgium
| | - Hamadi Attia
- University of Sfax/National School of Engineers of Sfax, Dept. of Biology, Laboratory of Analysis Valorisation and Food Safety, Soukra Road, 3038 Sfax, Tunisia
| | - Christophe Blecker
- University of Liège, Gembloux Agro-Biotech, Lab. of Food Science and Formulation, Passage des Déportés, 2, 5030 Gembloux, Belgium
| | - Souhail Besbes
- University of Sfax/National School of Engineers of Sfax, Dept. of Biology, Laboratory of Analysis Valorisation and Food Safety, Soukra Road, 3038 Sfax, Tunisia; University of Liège, Gembloux Agro-Biotech, Lab. of Food Science and Formulation, Passage des Déportés, 2, 5030 Gembloux, Belgium.
| | - Manel Masmoudi
- University of Sfax/National School of Engineers of Sfax, Dept. of Biology, Laboratory of Analysis Valorisation and Food Safety, Soukra Road, 3038 Sfax, Tunisia
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