Shatianyu dietary fiber (Citrus grandis L. Osbeck) promotes the production of active metabolites from its flavonoids during in vitro colonic fermentation
文献类型： 外文期刊
作者： Deng, Mei 2 ; Ye, Jiamin 2 ; Zhang, Ruifen 1 ; Zhang, Shuai 2 ; Dong, Lihong 2 ; Huang, Fei 2 ; Jia, Xuchao 2 ; Su, Dongxiao 4 ; Ma, Qin 2 ; Zhao, Dong 2 ; Zhang, Mingwei 1 ;
作者机构： 1.Guangdong Acad Agr Sci, Sericultural & Agrifood Res Inst, Key Lab Funct Foods, Guangdong Key Lab Agr Prod Proc,Minist Agr, Guangzhou 510610, Peoples R China
2.Guangdong Acad Agr Sci, Minist Agr, Key Lab Funct Foods, Guangdong Key Lab Agr Prod Proc,Sericultural & Agr, Guangzhou, Peoples R China
3.Tianjin Univ Sci & Technol, Coll Food Sci & Engn, Tianjin, Peoples R China
4.Guangzhou Univ, Sch Chem & Chem Engn, Guangzhou, Peoples R China
5.Food Lab Zhongyuan, Luohe, Peoples R China
关键词： Citrus grandis L. Osbeck; colonic fermentation; dietary fiber; flavonoids; gut microbiota; phenolic metabolites
期刊名称：JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE （ 影响因子：4.1； 五年影响因子：4.2 ）
ISSN： 0022-5142
年卷期： 2024 年 104 卷 5 期
页码：
收录情况： SCI
摘要： BACKGROUND: Recent studies reveal that dietary fiber (DF) might play a critical role in the metabolism and bioactivity of flavonoids by regulating gut microbiota. We previously found that Shatianyu (Citrus grandis L. Osbeck) pulp was rich in flavonoids and DF, and Shatianyu pulp flavonoid extracts (SPFEs) were dominated by melitidin, obviously different from other citrus flavonoids dominated by naringin. The effects of Shatianyu pulp DF (SPDF) on the microbial metabolism and bioactivity of SPFEs is unknown. RESULTS: An in vitro colonic fermentation model was used to explore the effects of SPDF on the microbial metabolism and antioxidant activity of SPFEs in the present study. At the beginning of fermentation, SPDF promoted the microbial degradation of SPFEs. After 24 h-fermentation, the supplemented SPFEs were almost all degraded in SPFEs group, and the main metabolites detected were the dehydrogenation, hydroxylation and acetylation products of naringenin, the aglycone of the major SPFEs components. However, when SPFEs fermented with SPDF for 24 h, 60.7% of flavonoid compounds were retained, and SPFEs were mainly transformed to the ring fission metabolites, such as 3-(4-hydroxyphenyl) propionic acid, 3-phenylpropionic acid and 3-(3-hydroxy-phenyl) propionic acid. The fermentation metabolites of SPFEs showed stronger antioxidant activity than the original ones, with a further increase in SPDF supplemented group. Furthermore, SPFEs enriched microbiota participating in the deglycosylation and dehydrogenation of flavonoids, while co-supplementation of SPDF and SPFEs witnessed the bloom of Lactobacillaceae and Lactobacillus, contributing to the deglycosylation and ring fission of flavonoids. CONCLUSIONS: DPF promote SPFEs to transform to active metabolites probably by regulating gut microbiota. (c) 2023 Society of Chemical Industry.
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