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Effects of simulated saliva-gastrointestinal digestion on the physicochemical properties and bioactivities of okra polysaccharides
Yuan,Qin1; He,Yuan1; Xiang,Pan Yin1; Wang,Sheng Peng2; Cao,Zheng Wen1; Gou,Tao1; Shen,Miao Miao1; Zhao,Li1; Qin,Wen1; Gan,Ren You3; Wu,Ding Tao1
2020-06-15
Source PublicationCarbohydrate Polymers
ISSN0144-8617
Volume238
Abstract

This study was to investigate the effects of in vitro simulated saliva-gastrointestinal digestion on the physicochemical properties and bioactivities of okra polysaccharides (OPS). Results showed that the digestibilities of OPS were about 5.1%, 37.5%, and 41.3% after saliva digestion (SD), saliva-gastric digestion (SGD), and saliva-gastrointestinal digestion (SGID), respectively. The SGID significantly changed the physicochemical properties of OPS, such as total uronic acids, total flavonoids, monosaccharide composition, rheological properties, and molecular weights (M). Especially, M changes resulted in the breakdown of glycosidic bonds during SGD, and the degradation of OPS during SGID was mainly caused by disrupting aggregates. Furthermore, the bioactivities of OPS were also affected by SGID. After SGID, OPS still possessed strong antioxidant activities, binding capacities, and prebiotic activities, but the α-glucosidase inhibitory effect was obviously decreased. Overall, results can provide valuable and scientific support on the oral administration of OPS as functional foods and medicines in the future.

KeywordAntioxidant Activity Enzyme Inhibition In Vitro Digestion Okra Polysaccharides Physicochemical Properties Prebiotic Activity
DOI10.1016/j.carbpol.2020.116183
URLView the original
Indexed BySCIE ; CPCI-S
WOS Research AreaChemistry ; Polymer Science
WOS SubjectChemistry, Applied ; Chemistry, Organic ; Polymer Science
WOS IDWOS:000526413700012
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Cited Times [WOS]:7   [WOS Record]     [Related Records in WOS]
Document TypeJournal article
CollectionInstitute of Chinese Medical Sciences
Affiliation1.Institute of Food Processing and Safety,College of Food Science,Sichuan Agricultural University,Ya'an,625014,China
2.State Key Laboratory of Quality Research in Chinese Medicine,Institute of Chinese Medical Sciences,University of Macau,Macao
3.Institute of Urban Agriculture,Chinese Academy of Agricultural Sciences,Chengdu,610213,China
Recommended Citation
GB/T 7714
Yuan,Qin,He,Yuan,Xiang,Pan Yin,et al. Effects of simulated saliva-gastrointestinal digestion on the physicochemical properties and bioactivities of okra polysaccharides[J]. Carbohydrate Polymers,2020,238.
APA Yuan,Qin,He,Yuan,Xiang,Pan Yin,Wang,Sheng Peng,Cao,Zheng Wen,Gou,Tao,Shen,Miao Miao,Zhao,Li,Qin,Wen,Gan,Ren You,&Wu,Ding Tao.(2020).Effects of simulated saliva-gastrointestinal digestion on the physicochemical properties and bioactivities of okra polysaccharides.Carbohydrate Polymers,238.
MLA Yuan,Qin,et al."Effects of simulated saliva-gastrointestinal digestion on the physicochemical properties and bioactivities of okra polysaccharides".Carbohydrate Polymers 238(2020).
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