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In Vitro Gastrointestinal Digestion of Various Sweet Potato Leaves: Polyphenol Profiles, Bioaccessibility and Bioavailability Elucidation

文献类型： 外文期刊

作者： Wen, Junren 1 ; Sui, Yong 1 ; Shi, Jianbin 1 ; Cai, Sha 1 ; Xiong, Tian 1 ; Cai, Fang 1 ; Zhou, Lei 1 ; Li, Shuyi 3 ; Mei, Xin 1 ;

作者机构： 1.Hubei Acad Agr Sci, Inst Agroprod Proc & Nucl Agr Technol, Agroprod Proc Res Sub Ctr Hubei Innovat Ctr Agr Sc, Key Lab Agroprod Cold Chain Logist,Minist Agr & Ru, Wuhan 430064, Peoples R China

2.Huazhong Agr Univ, Coll Food Sci & Technol, Wuhan 430070, Peoples R China

3.Wuhan Polytech Univ, Natl R&D Ctr Se Rich Agr Prod Proc, Sch Modern Ind Selenium Sci & Engn, Wuhan 430023, Peoples R China

4.Wuhan Polytech Univ, Sch Modern Ind Selenium Sci & Engn, Hubei Engn Res Ctr Deep Proc Green Se Rich Agr Pro, Wuhan 430023, Peoples R China

关键词： sweet potato leaves; caffeoylquinic acid; phenolic profile; bioaccessibility; bioavailability

期刊名称：ANTIOXIDANTS （ 影响因子：7.0； 五年影响因子：7.3 ）

ISSN：

年卷期： 2024 年 13 卷 5 期

页码：

收录情况： SCI

摘要： The chemical composition discrepancies of five sweet potato leaves (SPLs) and their phenolic profile variations during in vitro digestion were investigated. The results indicated that Ecaishu No. 10 (EC10) provided better retention capacity for phenolic compounds after drying. Furthermore, polyphenols were progressively released from the matrix as the digestion process proceeded. The highest bioaccessibility of polyphenols was found in EC10 intestinal chyme at 48.47%. For its phenolic profile, 3-, 4-, and 5-monosubstituted caffeoyl quinic acids were 9.75%, 57.39%, and 79.37%, respectively, while 3,4-, 3,5-, and 4,5-disubstituted caffeoyl quinic acids were 6.55, 0.27 and 13.18%, respectively. In contrast, the 3,4-, 3,5-, 4,5-disubstituted caffeoylquinic acid in the intestinal fluid after dialysis bag treatment was 62.12%, 79.12%, and 62.98%, respectively, which resulted in relatively enhanced bioactivities (DPPH, 10.51 mu mol Trolox/g; FRAP, 8.89 mu mol Trolox/g; ORAC, 7.32 mu mol Trolox/g; IC50 for alpha-amylase, 19.36 mg/g; IC50 for alpha-glucosidase, 25.21 mg/g). In summary, desirable phenolic acid release characteristics and bioactivity of EC10 were observed in this study, indicating that it has potential as a functional food ingredient, which is conducive to the exploitation of the sweet potato processing industry from a long-term perspective.

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