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An FK, Li MY, Luo HL, Liu XL, Fu Z, Ren MH. Structural properties and antioxidant capacity of different aminated starch-phenolic acid conjugates. Food Chem 2024; 460:140592. [PMID: 39067431 DOI: 10.1016/j.foodchem.2024.140592] [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: 04/29/2024] [Revised: 07/10/2024] [Accepted: 07/22/2024] [Indexed: 07/30/2024]
Abstract
Different aminated starch (AS) [EEAS (introducing ethylenediamine into starch using cross-linking-etherification-amination method (CEA)), EPAS (introducing o-phenylenediamine using CEA), OEAS (introducing ethylenediamine using cross-linking-oxidation-amination method (COA)), and OPAS (introducing o-phenylenediamine using COA)] were synthesized. The AS-phenolic acids [gallic acid (GA), syringic acid (SA), and vanillic acid (VA)] conjugates were prepared by laccase-catalyzed reaction. The grafting efficiency of EEAS on GA, SA, and VA was 36.59%, 69.71%, and 68.85%, respectively. SA reduced the maximum depolymerization rate of EEAS. The relative crystallinity of EEAS and EPAS grafted phenolic acid increased, and their particles showed severe breakage in appearance. OEAS-phenolic acid conjugates lost its granular structure and behaved as flakes and lumps, while the surface of OPAS-phenolic acid conjugates remained smooth after grafting phenolic acid. GA increased the DPPH· scavenging efficiency of EEAS from 16.12% to 79.92%. The increased antioxidant capacity of the conjugates suggested that AS-phenolic acids conjugates have high potential for applications.
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Affiliation(s)
- Feng-Kun An
- Institute of Light Industry and Food Engineering, Guangxi University, Nanning, China; Key Laboratory of Deep Processing and Safety Control for Specialty Agricultural Products in Guangxi Universities, Guangxi University, Nanning, China
| | - Meng-Yun Li
- Institute of Light Industry and Food Engineering, Guangxi University, Nanning, China; Key Laboratory of Deep Processing and Safety Control for Specialty Agricultural Products in Guangxi Universities, Guangxi University, Nanning, China
| | - Hai-Lu Luo
- Institute of Light Industry and Food Engineering, Guangxi University, Nanning, China; Key Laboratory of Deep Processing and Safety Control for Specialty Agricultural Products in Guangxi Universities, Guangxi University, Nanning, China
| | - Xing-Long Liu
- Institute of Light Industry and Food Engineering, Guangxi University, Nanning, China; Key Laboratory of Deep Processing and Safety Control for Specialty Agricultural Products in Guangxi Universities, Guangxi University, Nanning, China
| | - Zhen Fu
- Institute of Light Industry and Food Engineering, Guangxi University, Nanning, China; Key Laboratory of Deep Processing and Safety Control for Specialty Agricultural Products in Guangxi Universities, Guangxi University, Nanning, China.
| | - Min-Hong Ren
- Guangxi Vocational & Technical Institute of Industry, Nanning 530001, China
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2
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Lin J, Dai J, Xing J, Han J, Wei C, Zhao C, Wu Y, Xu X, Liu J. Effects of alginate synergized with polyphenol compounds on the retrogradation properties of corn starch. Int J Biol Macromol 2024:133682. [PMID: 39084976 DOI: 10.1016/j.ijbiomac.2024.133682] [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: 03/14/2024] [Revised: 06/26/2024] [Accepted: 07/03/2024] [Indexed: 08/02/2024]
Abstract
This study aimed to investigate the impact of alginate (AG) on the retrogradation properties of corn starch (CS) in conjunction with three phenolic compounds, including naringin (NA), rutin (RT), and soy isoflavones (SI). The findings indicated that AG, NA, RT, and SI collectively resulted in a significant reduction in the hardness, retrogradation enthalpy, and relaxation time of CS gel. This effect was more pronounced when compared to NA, RT, and SI individually. The findings suggested that the elemental system comprising AG, phenolic compounds, and CS yielded enhanced water retention capacity and thermal stability. Moreover, a noticeable decrease in the short-range ordered structure and crystallinity was observed, indicating that AG and phenolic compounds effectively inhibited the retrogradation of CS; notably, the synergistic interaction between AG and SI resulted in the most favorable outcome. The results of this study provide new ideas for the design, development, and quality improvement of starch-based food.
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Affiliation(s)
- Jiaqi Lin
- College of Food Science and Engineering, Jilin Agricultural University, Changchun, Jilin 130118, China; National Engineering Research Center for Wheat and Corn Deep Processing, Changchun, Jilin 130118, China
| | - Jiayin Dai
- College of Food Science and Engineering, Jilin Agricultural University, Changchun, Jilin 130118, China; National Engineering Research Center for Wheat and Corn Deep Processing, Changchun, Jilin 130118, China
| | - Jiayue Xing
- College of Food Science and Engineering, Jilin Agricultural University, Changchun, Jilin 130118, China; National Engineering Research Center for Wheat and Corn Deep Processing, Changchun, Jilin 130118, China
| | - Jina Han
- College of Food Science and Engineering, Jilin Agricultural University, Changchun, Jilin 130118, China; National Engineering Research Center for Wheat and Corn Deep Processing, Changchun, Jilin 130118, China
| | - Chaoyue Wei
- College of Food Science and Engineering, Jilin Agricultural University, Changchun, Jilin 130118, China; National Engineering Research Center for Wheat and Corn Deep Processing, Changchun, Jilin 130118, China
| | - Chengbin Zhao
- College of Food Science and Engineering, Jilin Agricultural University, Changchun, Jilin 130118, China; National Engineering Research Center for Wheat and Corn Deep Processing, Changchun, Jilin 130118, China
| | - Yuzhu Wu
- College of Food Science and Engineering, Jilin Agricultural University, Changchun, Jilin 130118, China; National Engineering Research Center for Wheat and Corn Deep Processing, Changchun, Jilin 130118, China.
| | - Xiuying Xu
- College of Food Science and Engineering, Jilin Agricultural University, Changchun, Jilin 130118, China; National Engineering Research Center for Wheat and Corn Deep Processing, Changchun, Jilin 130118, China.
| | - Jingsheng Liu
- College of Food Science and Engineering, Jilin Agricultural University, Changchun, Jilin 130118, China; National Engineering Research Center for Wheat and Corn Deep Processing, Changchun, Jilin 130118, China.
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3
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Nurdin SU, Nurdjanah S, Triyandi R, Nurhadi B. Antioxidant Activity, Glycemic Response, and Functional Properties of Rice Cooked with Red Palm Oil. J Nutr Metab 2024; 2024:3483292. [PMID: 38725902 PMCID: PMC11081750 DOI: 10.1155/2024/3483292] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2023] [Revised: 01/02/2024] [Accepted: 04/04/2024] [Indexed: 05/12/2024] Open
Abstract
High rice consumption levels accompanied by a lifestyle lacking in physical activity leads to obesity and diabetes due to the rice consumed generally has high digestibility and high glycemic index. Red palm oil (RPO) is a vegetable oil suggested to have the potential to reduce starch digestibility and increase the bioactive compounds of rice. This research aimed to find out the best cooking method to produce rice with a sensory quality similar to regular rice and to study the effect of the best cooking method on the glycemic response and physicochemical properties of rice. The results showed that RPO addition increased the antioxidant activities and total carotenoid levels of rice. The addition of RPO after cooking has better antioxidant activity and total carotenoid than before cooking. Adding 2% RPO before or after cooking produced rice with similar or better sensory quality than regular rice. Rice cooked with 2% RPO added before cooking had a lower glycemic response than regular rice, which was suggested to be caused by the increasing formation of the amylose lipid complex and the triglycerides that protected the starch from amylase enzyme. The formation of the amylose lipid complex and triglyceride layers protecting rice starch was confirmed by the new peaks of the FTIR spectra, the appearance of oil-coated starch morphology, and the changes in the proportion of C and O atoms. In conclusion, the addition of 2% RPO before the cooking process can be considered as a cooking method to produce rice for diabetic patients.
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Affiliation(s)
- Samsu U. Nurdin
- Department of Agriculture Product Technology, Agriculture Faculty, Lampung University, Bandar Lampung 6235145, Indonesia
| | - Siti Nurdjanah
- Department of Agriculture Product Technology, Agriculture Faculty, Lampung University, Bandar Lampung 6235145, Indonesia
| | - Ramadhan Triyandi
- Department of Pharmacy, Faculty of Medicine, Lampung University, Bandar Lampung 6235145, Indonesia
| | - Bambang Nurhadi
- Department of Food Technology, Agriculture Technology Faculty, Padjadjaran University, Bandung 62 45363, Indonesia
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4
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Chen W, Li X, Bodjrenou DM, Zhang Y, Zeng H. Butyryl group distribution modulates the structure and properties of butyrylated maize starch focused on amylose contents. Int J Biol Macromol 2024; 265:130794. [PMID: 38479661 DOI: 10.1016/j.ijbiomac.2024.130794] [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: 07/21/2023] [Revised: 02/13/2024] [Accepted: 03/09/2024] [Indexed: 03/28/2024]
Abstract
In this study, four types of maize starch with different amylose contents (3 %, 25 %, 40 %, and 70 %) were used to prepare butyrylated starches. Based on amylose contents, the influence of butyryl group distribution on the structure, thermal and digestive properties of butyrylated maize starch was investigated. The butyrylation reaction mainly substituted butyryl groups on amylose, and the butyryl groups were most easily substituted for the hydroxyl group at the C6 position. The degree of substitution of butyrylated starch reached its maximum when the amylose content was 40 %, and the degree of substitution did not correlate linearly with the amylose content. The butyrylation reaction increased the surface roughness, decreased the crystallinity, enthalpy value and molecular weight of native starch granules, resulting in a decrease in the degree of internal order of the starch and inducing the rearrangement of the amylose molecular chains in the amorphous region of the starch. The combination of the amylose content and the substitution of butyryl groups on amylose affected the digestibility of starch and ultimately increased its resistance. The Pearson correlation coefficient further confirmed the correlation between the distribution of butyryl groups and the structure and properties of butyrylated starch.
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Affiliation(s)
- Wei Chen
- College of Food Science, Fujian Agriculture and Forestry University, Fuzhou 350002, China; Fujian Provincial Key Laboratory of Quality Science and Processing Technology in Special Starch, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Xin Li
- College of Food Science, Fujian Agriculture and Forestry University, Fuzhou 350002, China; Fujian Provincial Key Laboratory of Quality Science and Processing Technology in Special Starch, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - David Mahoudjro Bodjrenou
- College of Food Science, Fujian Agriculture and Forestry University, Fuzhou 350002, China; Fujian Provincial Key Laboratory of Quality Science and Processing Technology in Special Starch, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Yi Zhang
- College of Food Science, Fujian Agriculture and Forestry University, Fuzhou 350002, China; Fujian Provincial Key Laboratory of Quality Science and Processing Technology in Special Starch, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Hongliang Zeng
- College of Food Science, Fujian Agriculture and Forestry University, Fuzhou 350002, China; Fujian Provincial Key Laboratory of Quality Science and Processing Technology in Special Starch, Fujian Agriculture and Forestry University, Fuzhou 350002, China; Key Laboratory of Subtropical Characteristic Fruits, Vegetables and Edible Fungi Processing (Co-construction by Ministry and Province), Ministry of Agriculture and Rural Affairs, Fuzhou 350002, China.
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5
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Fan JX, Guo XN, Zhu KX. Insight into the dynamic molecular mechanism underlying the endogenous polyphenols inhibiting the in vitro starch digestion of highland barley noodles. Food Chem 2024; 437:137870. [PMID: 37918153 DOI: 10.1016/j.foodchem.2023.137870] [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: 04/04/2023] [Revised: 10/13/2023] [Accepted: 10/25/2023] [Indexed: 11/04/2023]
Abstract
Highland barley is a type of grain with slow-digesting characteristics. It is worth exploring the impact of non-starch components on starch digestion. In this study, four varieties of highland barley were used to investigate the impacts of endogenous polyphenols (EP) on the relationship between starch structure, physicochemical properties, and the time course digestibility of highland barley noodles. The results showed that EP removal decreased the proportion of long-chain amylopectin and disrupted the crystalline structure, while increasing the short-range ordered structure in the residue. Significant correlations indicated that these structural changes make starch more susceptible to thermal degradation and digestion, causing a 12.60%-52.00% increase in rapidly digestible starch (RDS) and a 12.70%-25.22% decrease in resistant starch (RS). These results revealed the internal factors that affect the slow digestion characteristics of highland barley noodles from the perspective of EP and provide important reference values for a slow digestion diet.
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Affiliation(s)
- Jia-Xuan Fan
- State Key Laboratory of Food Science and Resources, Jiangnan University, 1800 Lihu Avenue, Wuxi 214122, Jiangsu Province, People's Republic of China; School of Food Science and Technology, Jiangnan University, 1800 Lihu Avenue, Wuxi 214122, Jiangsu Province, People's Republic of China.
| | - Xiao-Na Guo
- State Key Laboratory of Food Science and Resources, Jiangnan University, 1800 Lihu Avenue, Wuxi 214122, Jiangsu Province, People's Republic of China; School of Food Science and Technology, Jiangnan University, 1800 Lihu Avenue, Wuxi 214122, Jiangsu Province, People's Republic of China.
| | - Ke-Xue Zhu
- State Key Laboratory of Food Science and Resources, Jiangnan University, 1800 Lihu Avenue, Wuxi 214122, Jiangsu Province, People's Republic of China; School of Food Science and Technology, Jiangnan University, 1800 Lihu Avenue, Wuxi 214122, Jiangsu Province, People's Republic of China.
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6
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Fan H, Yao X, Chen Z, Ma R, Wen Y, Li H, Wang J, Sun B. Interaction of high amylose corn starch with polyphenols: Modulating the stability of polyphenols with different structure against thermal processing. Food Chem 2024; 437:137708. [PMID: 37875061 DOI: 10.1016/j.foodchem.2023.137708] [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: 06/22/2023] [Revised: 09/21/2023] [Accepted: 10/07/2023] [Indexed: 10/26/2023]
Abstract
Polyphenols are known to undergo thermal degradation and their bioactivity is reduced. In this study, the thermal degradation of polyphenols was modulated by the complexation between polyphenols and high amylose corn starch (HACS). The inclusion complex between ferulic acid with hydrophobic group methoxy and HACS had the highest encapsulation efficiency (EE = 26.15 %), loading efficiency (LE = 2.38 %) and thermal stability (DPPH radical scavenging activity was reduced by only 5.99 % after baking). After complexing with HACS, protocatechuic acid with ortho-position hydroxyl group had a higher encapsulation rate and thermal stability than 3, 5-dihydroxybenzoic acid with meta-position hydroxyl. In addition, soy isoflavone with the higher logarithmic value of octanol-water partition coefficient (Log P = 3.66) resulted in higher encapsulation rate and thermal stability than naringenin (Log P = 2.11). The results suggest that the complexation between polyphenols and starch protects the bioactivity of polyphenols and improves the processing suitability of polyphenols.
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Affiliation(s)
- Haoran Fan
- Key Laboratory of Geriatric Nutrition and Health (Beijing Technology and Business University), Ministry of Education, Beijing 100048, China
| | - Xu Yao
- Key Laboratory of Geriatric Nutrition and Health (Beijing Technology and Business University), Ministry of Education, Beijing 100048, China
| | - Zhijun Chen
- Key Laboratory of Geriatric Nutrition and Health (Beijing Technology and Business University), Ministry of Education, Beijing 100048, China
| | - Ruolan Ma
- Key Laboratory of Geriatric Nutrition and Health (Beijing Technology and Business University), Ministry of Education, Beijing 100048, China
| | - Yangyang Wen
- College of Chemistry and Materials Engineering, Beijing Technology and Business University (BTBU), 11 Fucheng Road, Beijing 100048, China
| | - Hongyan Li
- Key Laboratory of Geriatric Nutrition and Health (Beijing Technology and Business University), Ministry of Education, Beijing 100048, China.
| | - Jing Wang
- Key Laboratory of Geriatric Nutrition and Health (Beijing Technology and Business University), Ministry of Education, Beijing 100048, China.
| | - Baoguo Sun
- Key Laboratory of Geriatric Nutrition and Health (Beijing Technology and Business University), Ministry of Education, Beijing 100048, China
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7
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Wang F, Ma R, Zhu J, Zhan J, Li J, Tian Y. Physicochemical properties, in vitro digestibility, and pH-dependent release behavior of starch-steviol glycoside composite hydrogels. Food Chem 2024; 434:137420. [PMID: 37696154 DOI: 10.1016/j.foodchem.2023.137420] [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: 05/17/2023] [Revised: 07/29/2023] [Accepted: 09/04/2023] [Indexed: 09/13/2023]
Abstract
Steviol glycosides possess Bola-form amphiphilic structure, which can solubilize hydrophobic phytochemicals and exert physical modification to the hydrophilic matrix. However, the effect of steviol glycosides on the starch hydrogel is still unclear. Herein, the physicochemical properties, in vitro digestibility, and release behavior of starch hydrogel in the presence of steviol glycosides were investigated. The results showed that the addition of steviol glycosides promoted the gelatinization and gelation of starch, and endowed the starch hydrogel with softer texture, larger volume, and higher water holding capacity. The hydrophobic curcumin was well integrated into hydrogel by steviol glycosides, providing the gel with improved colour brilliance. The introduction of steviol glycosides hardly affected the digestibility of starch gel, but it promoted the release rate of curcumin. Notably, this release behavior was pH dependent, which tended to target the alkaline intestine. This work provided some theoretical supports for the development of sugar-free starchy foods.
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Affiliation(s)
- Fan Wang
- State Key Laboratory of Food Science and Resources, Jiangnan University, Wuxi 214122, PR China; Department of Biomedical Engineering, National University of Singapore, 15 Kent Ridge Crescent, Singapore 119276, Singapore; School of Food Science and Technology, Jiangnan University, Wuxi 214122, PR China
| | - Rongrong Ma
- State Key Laboratory of Food Science and Resources, Jiangnan University, Wuxi 214122, PR China; School of Food Science and Technology, Jiangnan University, Wuxi 214122, PR China
| | - Jingling Zhu
- Department of Biomedical Engineering, National University of Singapore, 15 Kent Ridge Crescent, Singapore 119276, Singapore; NUS Environmental Research Institute (NERI), National University of Singapore, 5 A Engineering Drive 1, Singapore 117411, Singapore
| | - Jinling Zhan
- National Engineering Research Center of Cereal Fermentation and Food Biomanufacturing, Jiangnan University, Wuxi 214122, PR China
| | - Jun Li
- Department of Biomedical Engineering, National University of Singapore, 15 Kent Ridge Crescent, Singapore 119276, Singapore; NUS Environmental Research Institute (NERI), National University of Singapore, 5 A Engineering Drive 1, Singapore 117411, Singapore.
| | - Yaoqi Tian
- State Key Laboratory of Food Science and Resources, Jiangnan University, Wuxi 214122, PR China; School of Food Science and Technology, Jiangnan University, Wuxi 214122, PR China.
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8
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Cai M, Feng J, Wang J, Chen P, Ge Z, Liu W, Sun P, Wu L, Wu J. Characterization of Various Noncovalent Polyphenol-Starch Complexes and Their Prebiotic Activities during In Vitro Digestion and Fermentation. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2024; 72:2250-2262. [PMID: 38235718 DOI: 10.1021/acs.jafc.3c09327] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/19/2024]
Abstract
This study explores the structural characterization of six noncovalent polyphenol-starch complexes and their prebiotic activities during in vitro digestion and fermentation. Ferulic acid, caffeic acid, gallic acid, isoquercetin, astragalin, and hyperin were complexed with sweet potato starch (SPS). The polyphenols exhibited high binding capacity (>70%) with SPS. A partial release of flavonoids from the complexes was observed via in vitro digestion, while the phenolic acids remained tightly bound. Molecular dynamics (MD) simulation revealed that polyphenols altered the spatial configuration of polysaccharides and intramolecular hydrogen bonds formed. Additionally, polyphenol-SPS complexes exerted inhibitory effects on starch digestion compared to gelatinized SPS, owing to the increase in resistant starch fraction. It revealed that the different complexes stimulated the growth of Lactobacillus rhamnosus and Bifidobacterium bifidum, while inhibiting the growth of Escherichia coli. Moreover, in vitro fermentation experiments revealed that complexes were utilized by the gut microbiota, resulting in the production of short-chain fatty acids and a decrease in pH. In addition, the polyphenol-SPS complexes altered the composition of gut microbiota by promoting the growth of beneficial bacteria and decreasing pathogenic bacteria. Polyphenol-SPS complexes exhibit great potential for use as a prebiotic and exert dual beneficial effects on gut microbiota.
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Affiliation(s)
- Ming Cai
- Department of Food Science and Technology, Zhejiang University of Technology, Hangzhou 310014, People's Republic of China
- Key Laboratory of Food Macromolecular Resources Processing Technology Research (Zhejiang University of Technology), China National Light Industry, Hangzhou 310014, People's Republic of China
| | - Jicai Feng
- Department of Food Science and Technology, Zhejiang University of Technology, Hangzhou 310014, People's Republic of China
- Key Laboratory of Food Macromolecular Resources Processing Technology Research (Zhejiang University of Technology), China National Light Industry, Hangzhou 310014, People's Republic of China
| | - Jian Wang
- Department of Food Science and Technology, Zhejiang University of Technology, Hangzhou 310014, People's Republic of China
- Key Laboratory of Food Macromolecular Resources Processing Technology Research (Zhejiang University of Technology), China National Light Industry, Hangzhou 310014, People's Republic of China
| | - Peng Chen
- Department of Food Science and Technology, Zhejiang University of Technology, Hangzhou 310014, People's Republic of China
- Key Laboratory of Food Macromolecular Resources Processing Technology Research (Zhejiang University of Technology), China National Light Industry, Hangzhou 310014, People's Republic of China
| | - Zhiwei Ge
- Analysis Center of Agrobiology and Environmental Sciences, Zhejiang University, Hangzhou 310058, People's Republic of China
| | - Wei Liu
- Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, People's Republic of China
| | - Peilong Sun
- Department of Food Science and Technology, Zhejiang University of Technology, Hangzhou 310014, People's Republic of China
- Key Laboratory of Food Macromolecular Resources Processing Technology Research (Zhejiang University of Technology), China National Light Industry, Hangzhou 310014, People's Republic of China
| | - Liehong Wu
- Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, People's Republic of China
| | - Jianyong Wu
- Department of Food Science & Nutrition, Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong 999077, People's Republic of China
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9
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Wang J, Huang J, Liang Q, Gao Q. Effects of heat-moisture treatment on structural characteristics and in vitro digestibility of A- and B-type wheat starch. Int J Biol Macromol 2024; 256:128012. [PMID: 37951449 DOI: 10.1016/j.ijbiomac.2023.128012] [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: 07/21/2023] [Revised: 10/05/2023] [Accepted: 11/08/2023] [Indexed: 11/14/2023]
Abstract
In this study, A- and B-type wheat starch granules (AWS and BWS) were separated and modified by heat-moisture treatment (HMT) with different moisture content (10 %-40 %). The effects of HMT on the structure characteristics and digestibility of raw/cooked AWS and BWS were investigated by SEM, FT-IR, XRD, DSC, TGA and NMR. SEM and FT-IR results showed that BWS was more sensitive to HMT than AWS. Interestingly, crystalline conformation of AWS and BWS changed from A type to A + V type after HMT, and the relative crystallinity (V-type) of starch increased to 2.7 % and 3.4 %, respectively. XRD and NMR results verified the formation of V-type crystalline structure. The resistant starch (RS) content of cooked starch was increased, especially for BWS (from 11.46 % to 28.29 %). Compared to the cooked starch, the RS content of raw AWS and BWS was affected by relative crystallinity and the size of starch granules. Furthermore, structure characteristics and digestion kinetics results indicated that the digestion rate of cooked AWS increased due to the deconstruction of starch chains, opposite to BWS (because of the more V-type crystals). The results enrich our understanding of the mechanism of digestion subjected to HMT by different grain sizes of the same wheat starch.
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Affiliation(s)
- Jianhe Wang
- Carbohydrate Laboratory, School of Food Science and Engineering, South China University of Technology, Guangzhou 510640, PR China; Guangdong Province Key Laboratory for Green Processing of Natural Products and Product Safety, Guangzhou 510640, PR China
| | - Jihong Huang
- Food and Pharmacy College, Xuchang University, Xuchang, Henan 461000, PR China.
| | - Qian Liang
- Carbohydrate Laboratory, School of Food Science and Engineering, South China University of Technology, Guangzhou 510640, PR China; Guangdong Province Key Laboratory for Green Processing of Natural Products and Product Safety, Guangzhou 510640, PR China
| | - Qunyu Gao
- Carbohydrate Laboratory, School of Food Science and Engineering, South China University of Technology, Guangzhou 510640, PR China; Guangdong Province Key Laboratory for Green Processing of Natural Products and Product Safety, Guangzhou 510640, PR China.
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10
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Raza H, Xu H, Zhou Q, He J, Zhu B, Li S, Wang M. A review of green methods used in starch-polyphenol interactions: physicochemical and digestion aspects. Food Funct 2023; 14:8071-8100. [PMID: 37647014 DOI: 10.1039/d3fo01729j] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/01/2023]
Abstract
The interactions of starch with lipids, proteins, and other major food components during food processing are inevitable. These interactions could result in the formation of V-type or non-V-type complexes of starch. The starch-lipid complexes have been intensively studied for over five decades, however, the complexes of starch and polyphenols are relatively less studied and are the subject of recent interest. The interactions of starch with polyphenols can affect the physicochemical properties and its digestibility. The literature has highlighted several green methods such as ultrasound, microwave, high pressure, extrusion, ball-milling, cold plasma etc., to assist interactions of starch with polyphenols. However, comprehensive information on green methods to induce starch-polyphenol interactions is still scarce. Therefore, in light of the importance and potential of starch-polyphenol complexes in developing functional foods with low digestion, this review has summarized the novel green methods employed in interactions of starch with flavonoids, phenolic acids and tannins. It has been speculated that flavonoids, phenolic acids, and tannins, among other types of polyphenols, may have anti-digestive activities and are also revealed for their interaction with starch to form either an inclusion or non-inclusion complex. Further information on the effects of these interactions on physicochemical parameters to understand the chemistry and structure of the complexes is also provided.
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Affiliation(s)
- Husnain Raza
- Shenzhen Key Laboratory of Food Nutrition and Health, Institute for Advanced Study and Institute for Innovative Development of Food Industry, Shenzhen University, Shenzhen 518060, China.
- College of Civil and Transportation Engineering, Shenzhen University, Shenzhen 518060, China
- Department of Food Science, Faculty of Science, University of Copenhagen, Rolighedsvej 26, Frederiksberg C, DK, 1958, Denmark
| | - Hui Xu
- Shenzhen Key Laboratory of Food Nutrition and Health, Institute for Advanced Study and Institute for Innovative Development of Food Industry, Shenzhen University, Shenzhen 518060, China.
- College of Civil and Transportation Engineering, Shenzhen University, Shenzhen 518060, China
| | - Qian Zhou
- Shenzhen Key Laboratory of Food Nutrition and Health, Institute for Advanced Study and Institute for Innovative Development of Food Industry, Shenzhen University, Shenzhen 518060, China.
| | - Jiayi He
- Shenzhen Key Laboratory of Food Nutrition and Health, Institute for Advanced Study and Institute for Innovative Development of Food Industry, Shenzhen University, Shenzhen 518060, China.
| | - Beiwei Zhu
- Shenzhen Key Laboratory of Food Nutrition and Health, Institute for Advanced Study and Institute for Innovative Development of Food Industry, Shenzhen University, Shenzhen 518060, China.
| | - Siqian Li
- Shenzhen Key Laboratory of Food Nutrition and Health, Institute for Advanced Study and Institute for Innovative Development of Food Industry, Shenzhen University, Shenzhen 518060, China.
| | - Mingfu Wang
- Shenzhen Key Laboratory of Food Nutrition and Health, Institute for Advanced Study and Institute for Innovative Development of Food Industry, Shenzhen University, Shenzhen 518060, China.
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11
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Fashi A, Delavar AF, Zamani A, Noshiranzadeh N, Mohammadi M. Solid state cationization reaction of microporous starch with betaine hydrochloride under repeated heating/cooling cycles: Design of a green approach for corn starch modification. Int J Biol Macromol 2023; 248:125968. [PMID: 37494994 DOI: 10.1016/j.ijbiomac.2023.125968] [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: 02/15/2023] [Revised: 07/15/2023] [Accepted: 07/22/2023] [Indexed: 07/28/2023]
Abstract
In this research, the cationization process of microporous starch with betaine hydrochloride (BHC) in the presence of H3PO4 (as a catalyst) under heating/cooling cycles was reported for the first time. Granular microporous starch was initially prepared from normal corn starch (NS) through amyloglucosidase treatment. Then, solid state cationization reaction of microporous starch (MS) with betaine hydrochloride (BHC) was performed under repeated dry-heat modification. The cationic microporous starch showed higher substitution degree (0.031) and reaction efficiency (89.1 %) in comparison with cationic starch based on NS (0.021, 60.3 %), which this can be attributed to the increased probability of effective collision between BHC molecules and starch granules after enzymatic treatment. The analysis of cationic starches by FTIR and 13C NMR confirmed the presence of cationic functional groups on starch chains. Further examinations on the modified starches by single and dual treatments were accomplished with respect to morphology, particle size distribution, X-ray powder diffraction (XRD), colour parameters, zeta potential, amylose content, viscosity, solubility, and swelling power. The greenness of the suggested dual treatment (score: 82) in this work was evaluated and compared to a conventional method reported in literature (score: 67) on the preparation of cationic starches.
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Affiliation(s)
- Armin Fashi
- Department of Environmental Science, University of Zanjan, Postal Code 45371-38791 Zanjan, Iran; Research and Development Department, Glucosan Company, Alborz Industrial City, Qazvin, Iran.
| | - Ali Fallah Delavar
- Research and Development Department, Glucosan Company, Alborz Industrial City, Qazvin, Iran
| | - Abbasali Zamani
- Department of Environmental Science, University of Zanjan, Postal Code 45371-38791 Zanjan, Iran.
| | | | - Maryam Mohammadi
- Food and Agricultural Products Research Group, Food Technology and Agricultural Products Research Center, Standard Research Institute, Karaj, Iran
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12
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Wang Z, Wang S, Xu Q, Kong Q, Li F, Lu L, Xu Y, Wei Y. Synthesis and Functions of Resistant Starch. Adv Nutr 2023; 14:1131-1144. [PMID: 37276960 PMCID: PMC10509415 DOI: 10.1016/j.advnut.2023.06.001] [Citation(s) in RCA: 13] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2022] [Revised: 05/15/2023] [Accepted: 06/01/2023] [Indexed: 06/07/2023] Open
Abstract
Resistant starch (RS) has become a popular topic of research in recent years. Most scholars believe that there are 5 types of RS. However, accumulating evidence indicates that in addition to starch-lipid complexes, which are the fifth type of RS, complexes containing starch and other substances can also be generated. The physicochemical properties and physiologic functions of these complexes are worth exploring. New physiologic functions of several original RSs are constantly being discovered. Research shows that RS can provide health improvements in many patients with chronic diseases, including diabetes and obesity, and even has potential benefits for kidney disease and colorectal cancer. Moreover, RS can alter the short-chain fatty acids and microorganisms in the gut, positively regulating the body's internal environment. Despite the increase in its market demand, RS production remains limited. Upscaling RS production is thus an urgent requirement. This paper provides detailed insights into the classification, synthesis, and efficacy of RS, serving as a starting point for the future development and applications of RS based on the current status quo.
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Affiliation(s)
- Zhanggui Wang
- Department of Radiotherapy, Anhui No. 2 Provincial People's Hospital, Hefei, China
| | - Shuli Wang
- Department of Radiology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, China
| | - Qinhong Xu
- Department of Acupuncture and Massage, Anhui No.2 Provincial People's Hospital, Hefei, China
| | - Qi Kong
- Department of Radiotherapy, Anhui No. 2 Provincial People's Hospital, Hefei, China
| | - Fei Li
- Department of Radiotherapy, Anhui No. 2 Provincial People's Hospital, Hefei, China
| | - Lin Lu
- Department of Radiotherapy, Anhui No. 2 Provincial People's Hospital, Hefei, China
| | - Yibiao Xu
- Department of Neurosurgery, The Fifth People's Hospital of Huai 'an, Huai' an, China
| | - Yali Wei
- Department of Radiotherapy, Anhui No. 2 Provincial People's Hospital, Hefei, China; Department of Women's Health, Jiaxing Maternity and Child Health Care Hospital, Affiliated Women and Children's Hospital of Jiaxing University, Jiaxing, China.
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13
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Thakur M, Rai AK, Singh SP. Structural Characteristics, Physicochemical Properties, and Digestibility Analysis of Resistant Starch Type-V Prepared from Debranched Corn Starch and Fatty Acid Complexation. ACS OMEGA 2023; 8:25799-25807. [PMID: 37521665 PMCID: PMC10373469 DOI: 10.1021/acsomega.3c01093] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/18/2023] [Accepted: 06/23/2023] [Indexed: 08/01/2023]
Abstract
Corn starch was gelatinized and treated with a metagenomic type 1 pullulanase (PulM), increasing the proportion of linear glucan chains. The debranched corn starch (DCS), containing amylose helices, was subjected to complexation with fatty acid molecules at moderate temperatures (50-60 °C). The amylose-lipid complexes prepared using saturated fatty acids, e.g., capric acid (CA) and lauric acid (LA), displayed higher CI values as compared to that of unsaturated fatty acid compounds, e.g., undecylenic acids (UAs) and oleic acid (OA). The DCS-fatty acid complex was estimated to contain about 14% of rapidly digested starch (RDS), 26% of slowly digested starch (SDS), and 60% of resistant starch V (RS-5). RS-5 samples exhibited high resistance toward digestive enzymatic hydrolysis. The surface microdetails of RS-5 were examined by scanning electron microscopy (SEM), depicting small spherulite-like structural aggregates. X-ray diffraction pattern analysis estimated about 46% of the crystallinity of RS-5. Thermal attributes of RS-5 were examined by thermogravimetric analysis (TGA) and differential scanning calorimetry (DSC) analysis, depicting the increase in melting enthalpies after the complexation of fatty acid molecules with debranched corn starch. Comparative DSC thermograms divulged a relatively higher stability of RS-5 as compared to that of RS-3. The findings advocated the potentiality of RS-5 (nondigestible DCS-LA complex) as a functional, valuable ingredient in the food industry.
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Affiliation(s)
- Monika Thakur
- Center
of Innovative and Applied Bioprocessing (DBT-CIAB), A National Institute of DBT, Govt. of India, SAS Nagar, Sector 81, Mohali 140306, India
| | - Amit K. Rai
- National
Agri-Food Biotechnology Institute (DBT-NABI), A National Institute of DBT, Govt. of India, SAS Nagar, Sector 81, Mohali 140306, India
| | - Sudhir P. Singh
- Center
of Innovative and Applied Bioprocessing (DBT-CIAB), A National Institute of DBT, Govt. of India, SAS Nagar, Sector 81, Mohali 140306, India
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14
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Althawab SA, Amoako DB, Annor GA, Awika JM. Stability of starch-proanthocyanidin complexes to in-vitro amylase digestion after hydrothermal processing. Food Chem 2023; 421:136182. [PMID: 37086517 DOI: 10.1016/j.foodchem.2023.136182] [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: 11/29/2022] [Revised: 04/10/2023] [Accepted: 04/15/2023] [Indexed: 04/24/2023]
Abstract
Proanthocyanidins (PA) form poorly digestible complexes with starch. The study examined amylase degradation mechanism and hydrothermal stability of starch-PA complexes. Sorghum-derived PA was complexed with wheat starch, reconstituted into flour (10% gluten added) and processed into crackers and pancakes. In vitro digestion profile of the complexes and products were characterized. The starch-PA complexes retained more (34-84%) fragments with degree of polymerization (DP) > 6,000 after 120 min digestion than controls (0-21%). Debranching further revealed higher retention of DP 11 - 30 chains in the digested starch-PA complexes than controls, suggesting amylopectin complexation contributed to reduced starch digestion. Starch-PA complexes retained reduced digestibility (50-56% higher resistant starch vs controls) in the cracker, but not pancake model. However, removing gluten from the pancake formulation restored the reduced digestibility of the starch-PA complexes. The starch-PA complexes are stable to hydrothermal processing, but can be disrupted by hydrophobic gluten proteins under excess moisture conditions.
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Affiliation(s)
- Suleiman A Althawab
- Texas A&M University, Department of Food Science & Technology, College Station, TX 77843, USA
| | - Derrick B Amoako
- Texas A&M University, Department of Food Science & Technology, College Station, TX 77843, USA
| | - George A Annor
- University of Minnesota, Food Science and Nutrition Department, Saint Paul, MN 55108, USA
| | - Joseph M Awika
- Texas A&M University, Department of Food Science & Technology, College Station, TX 77843, USA.
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15
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Ngo TV, Kusumawardani S, Kunyanee K, Luangsakul N. Polyphenol-Modified Starches and Their Applications in the Food Industry: Recent Updates and Future Directions. Foods 2022; 11:3384. [PMID: 36359996 PMCID: PMC9658643 DOI: 10.3390/foods11213384] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2022] [Revised: 10/19/2022] [Accepted: 10/24/2022] [Indexed: 07/25/2023] Open
Abstract
Health problems associated with excess calories, such as diabetes and obesity, have become serious public issues worldwide. Innovative methods are needed to reduce food caloric impact without negatively affecting sensory properties. The interaction between starch and phenolic compounds has presented a positive impact on health and has been applied to various aspects of food. In particular, an interaction between polyphenols and starch is widely found in food systems and may endow foods with several unique properties and functional effects. This review summarizes knowledge of the interaction between polyphenols and starch accumulated over the past decade. It discusses changes in the physicochemical properties, in vitro digestibility, prebiotic properties, and antioxidant activity of the starch-polyphenol complex. It also reviews innovative methods of obtaining the complexes and their applications in the food industry. For a brief description, phenolic compounds interact with starch through covalent or non-covalent bonds. The smoothness of starch granules disappears after complexation, while the crystalline structure either remains unchanged or forms a new structure and/or V-type complex. Polyphenols influence starch swelling power, solubility, pasting, and thermal properties; however, research remains limited regarding their effects on oil absorption and freeze-thaw stability. The interaction between starch and polyphenolic compounds could promote health and nutritional value by reducing starch digestion rate and enhancing bioavailability; as such, this review might provide a theoretical basis for the development of novel functional foods for the prevention and control of hyperglycemia. Further establishing a comprehensive understanding of starch-polyphenol complexes could improve their application in the food industry.
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Affiliation(s)
| | | | | | - Naphatrapi Luangsakul
- School of Food Industry, King Mongkut’s Institute of Technology Ladkrabang, Bangkok 10520, Thailand
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16
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Fan H, Chen Z, Ma R, Wen Y, Li H, Wang J, Sun B. V6a-amylose helical cavity and benzoic acids with para-hydroxyl structure facilitate the formation of inclusion complex. Carbohydr Polym 2022; 298:120065. [DOI: 10.1016/j.carbpol.2022.120065] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2022] [Revised: 08/07/2022] [Accepted: 08/30/2022] [Indexed: 11/02/2022]
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17
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18
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Su CY, Li D, Wang LJ, Wang Y. Biodegradation behavior and digestive properties of starch-based film for food packaging - a review. Crit Rev Food Sci Nutr 2022; 63:6923-6945. [PMID: 35142240 DOI: 10.1080/10408398.2022.2036097] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Non-degradable plastic places a serious burden on the environment, so consumers and researchers are working to develop biodegradable, safe, and sustainable food packaging materials. The starch-based film has become emerging material for food packaging. Not only does it shows excellent physicochemical properties, but also provides the desired degradation characteristics after use or the digestive properties after consumption, thus needing to comprehensively evaluate the quality of starch-based food packaging materials. This review summarizes the degradation behavior of the starch-based film in different degradation environments, and compares the suitability of degradation environments. Besides, the physicochemical properties of the composite or blend film during the degradation process were further discussed. The factors affecting the digestibility of starch-based edible film were reviewed and analyzed. Finally, the application and the future trend of the biodegradable starch-based film in the food packaging field were proposed. Future studies should combine and evaluate the physical properties and biodegradability of the composite/blend film, to develop food packaging materials with good characteristics and biodegradability.
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Affiliation(s)
- Chun-Yan Su
- College of Engineering, Beijing Advanced Innovation Center for Food Nutrition and Human Health, National Energy R & D Center for Non-food Biomass, China Agricultural University, Beijing, China
| | - Dong Li
- College of Engineering, Beijing Advanced Innovation Center for Food Nutrition and Human Health, National Energy R & D Center for Non-food Biomass, China Agricultural University, Beijing, China
| | - Li-Jun Wang
- College of Food Science and Nutritional Engineering, Beijing Key Laboratory of Functional Food from Plant Resources, China Agricultural University, Beijing, China
| | - Yong Wang
- School of Chemical Engineering, University of New South Wales, Kensington, New South Wales, Australia
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19
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Mu J, Wu G, Chen Z, Klosek A, Brennan MA, Hui X, Brennan CS. The effects of blackcurrant and strawberry powder on the physicochemical and in vitro glycaemic response of starches derived from sweet potato (
Ipomoea batatas
) and potato (
Solanum tuberosum
). Int J Food Sci Technol 2021. [DOI: 10.1111/ijfs.15272] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Jianlou Mu
- College of Food Science and Technology Hebei Agricultural University Baoding China
- Department of Wine, Food and Molecular Biosciences Faculty of Agriculture & Life Sciences Lincoln University Christchurch New Zealand
| | - Gang Wu
- College of Food Science and Technology Hebei Agricultural University Baoding China
- Department of Wine, Food and Molecular Biosciences Faculty of Agriculture & Life Sciences Lincoln University Christchurch New Zealand
- Riddet Institute Palmerston North New Zealand
| | - Zhizhou Chen
- College of Food Science and Technology Hebei Agricultural University Baoding China
| | - Axelle Klosek
- Department of Wine, Food and Molecular Biosciences Faculty of Agriculture & Life Sciences Lincoln University Christchurch New Zealand
- AgroSup Dijon Dijon France
| | - Magaret A. Brennan
- Department of Wine, Food and Molecular Biosciences Faculty of Agriculture & Life Sciences Lincoln University Christchurch New Zealand
- School of Science RMIT University Melbourne VIC 3000 Australia
| | - Xiaodan Hui
- College of Food Science and Technology Hebei Agricultural University Baoding China
- Department of Wine, Food and Molecular Biosciences Faculty of Agriculture & Life Sciences Lincoln University Christchurch New Zealand
- Riddet Institute Palmerston North New Zealand
| | - Charles S. Brennan
- Department of Wine, Food and Molecular Biosciences Faculty of Agriculture & Life Sciences Lincoln University Christchurch New Zealand
- Riddet Institute Palmerston North New Zealand
- School of Science RMIT University Melbourne VIC 3000 Australia
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20
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Kittipongpatana N, Wiriyacharee P, Phongphisutthinant R, Chaipoot S, Somjai C, Kittipongpatana OS. Resistant Starch Contents of Starch Isolated from Black Longan Seeds. Molecules 2021; 26:3405. [PMID: 34199868 PMCID: PMC8200116 DOI: 10.3390/molecules26113405] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2021] [Revised: 06/02/2021] [Accepted: 06/03/2021] [Indexed: 12/15/2022] Open
Abstract
A large quantity of longan fruits (Dimocarpus longan Lour.) produced annually are processed into many products, one of which is black longan, from which the dried, dark-brown meat has been used medicinally in traditional medicine, while the starch-containing seeds are discarded. In this study, starch samples (BLGSs) were isolated from seeds of black longan fruits prepared using varied conditions. The in vitro digestibility was determined in comparison with those extracted from fresh (FLGS) and dried (DLGS) seeds. Scanning electron microscopy (SEM), X-ray diffraction (XRD), differential scanning calorimetry (DSC), and Fourier transform infrared (FTIR) spectroscopy were employed to evaluate the starch properties. The results showed that the yields of FLGS, DLGS, and BLGSs were 20%, 23%, and 16-22% w/w, respectively. SEM images showed starch granules of mixed shapes, with sizes up to 15 µm in all samples. XRD patterns confirmed an A-type crystallinity for FLGS and DLGS, with strong refraction peaks at 2θ = 15°, 17°, 18°, and 23°, while BLGSs also showed detectable peaks at 2θ = 10° and 21°, which suggested V-type structures. Thermal properties corroborated the changes by showing increases in peak gelatinization temperature (Tp) and enthalpy energy (ΔH) in BLGSs. The paste viscosity of BLGSs (5% w/w) decreased by 20-58% from that of FLGS. The FTIR peak ratio at 1045/1022 and 1022/995 cm-1 also indicated an increase in ordered structure in BLGSs compared to FLGS. The significant increase in the amounts of slowly digestible starch (SDS) and resistant starch (RS) in BLGSs compared to FLGS, especially at a prolonged incubation time of 20 (4.2×) and 30 days (4.1×), was proposed to be due to the heat-induced formation of starch inclusion with other components inside the seed during the black longan production process. Thus, black longan seed could be a new source of starch, with increased RS content, for potential use in the food and related industries.
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Affiliation(s)
- Nisit Kittipongpatana
- Department of Pharmaceutical Sciences, Faculty of Pharmacy, Chiang Mai University, Chiang Mai 50200, Thailand;
- Research Center for Agricultural Innovation, Chiang Mai University, Chiang Mai 50200, Thailand
| | - Pairote Wiriyacharee
- Division of Product Development Technology, Faculty of Agro-Industry, Chiang Mai University, Chiang Mai 50100, Thailand; (P.W.); (C.S.)
- Science and Technology Research Institute of Chiang Mai University, Chiang Mai 50200, Thailand; (R.P.); (S.C.)
- Center of Excellent in Microbial Diversity and Sustainable Utilization, Faculty of Science, Chiang Mai University, Chiang Mai 50200, Thailand
| | - Rewat Phongphisutthinant
- Science and Technology Research Institute of Chiang Mai University, Chiang Mai 50200, Thailand; (R.P.); (S.C.)
- Center of Excellent in Microbial Diversity and Sustainable Utilization, Faculty of Science, Chiang Mai University, Chiang Mai 50200, Thailand
| | - Supakit Chaipoot
- Science and Technology Research Institute of Chiang Mai University, Chiang Mai 50200, Thailand; (R.P.); (S.C.)
| | - Chalermkwan Somjai
- Division of Product Development Technology, Faculty of Agro-Industry, Chiang Mai University, Chiang Mai 50100, Thailand; (P.W.); (C.S.)
| | - Ornanong S. Kittipongpatana
- Department of Pharmaceutical Sciences, Faculty of Pharmacy, Chiang Mai University, Chiang Mai 50200, Thailand;
- Research Center for Agricultural Innovation, Chiang Mai University, Chiang Mai 50200, Thailand
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