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Effects of in vitro simulated digestion on the free and bound phenolic content and antioxidant activity of seven species of seaweeds

文献类型: 外文期刊

作者: Huang, Zhiting 1 ; Chen, Qiqi 1 ; Hu, Kaixi 1 ; Zhang, Ruifen 2 ; Yuan, Yang 1 ; He, Shan 1 ; Zeng, Qingzhu 1 ; Su, Dongx 1 ;

作者机构: 1.Guangzhou Univ, Sch Chem & Chem Engn, Guangzhou 510006, Peoples R China

2.Guangdong Acad Agr Sci, Sericultural & Agri Food Res Inst, Guangdong Key Lab Agr Prod Proc, Key Lab Funct Foods,Minist Agr & Rural Affairs, Guangzhou 510610, Peoples R China

3.Flinders Univ S Australia, Flinders Inst Nanoscale Sci & Technol, Coll Sci & Engn, Bedford Pk, SA 5042, Australia

关键词: Seaweed; simulated digestion; phenolics; antioxidant activity

期刊名称:INTERNATIONAL JOURNAL OF FOOD SCIENCE AND TECHNOLOGY ( 影响因子:3.713; 五年影响因子:3.408 )

ISSN: 0950-5423

年卷期:

页码:

收录情况: SCI

摘要: The effects of simulated gastrointestinal digestion on the content and antioxidant activity of phenolics of seven seaweeds were investigated: Two methods of digestion were used - simulated gastric fluid (SGF) and simulated intestinal fluid (SIF) to mimic the stomach and upper intestinal environment. Results showed that SIF can significantly increase the free phenolic content of all tested seaweeds. The total phenolic content of the seaweeds increased in range from 4.16 to 17.24 mg GAE/g before simulated digestion to 4.08 to 40.37 mg GAE/g after digestion. The antioxidant activity of seaweed-bound phenolics was superior to that of free phenolics. Among the seven varieties of seaweeds, Sargassum thunbergii and Sargassum kjellmanianum contained the highest content of bound phenolics after SGF digestion. Bound phenolics of Undaria pinnatifida and Sargassum thunbergii showed the highest in vitro ABTS(+) free radical scavenging ability, while Sargassum thunbergii and Sargassum fusiforme showed the highest in vitro FRAP antioxidant activity.

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