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标题：Pectin Influences the Absorption and Metabolism of Polyphenols from Blackcurrant and Green Tea in Rats
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作者：Gunaranjan Paturi ; Christine A. Butts ; Nigel I. Joyce 等
期刊名称：Foods
电子版ISSN：2304-8158
出版年度：2021
卷号：10
期号：4
页码：813
DOI：10.3390/foods10040813
出版社：MDPI Publishing
摘要：Consumption of polyphenols and dietary fiber as part of a normal diet is beneficial to human health. In this study, we examined whether different amounts of dietary soluble fiber (pectin) affect the absorption and metabolism of polyphenols from blackcurrant and green tea in rats. After 28 days, the rats fed blackcurrant and green tea with pectin (4 or 8%) had significantly lower body weight gain and food intake compared to the rats fed a control diet. Rats fed a blackcurrant and green tea diet with 8% pectin had significantly higher fecal nitrogen output and lower protein digestibility. No polyphenols were observed in the urine, feces and plasma of rats fed the control diet. Parent catechins and flavonols were absent in urine obtained from all diet groups. Gallocatechin glucuronide was only observed in the plasma of rats fed the blackcurrant and green tea diet without pectin. Meanwhile, epicatechin and catechin gallate were present in the feces of rats fed a blackcurrant and green tea diet with and without 4% pectin. Pectin (4 or 8%) added to the blackcurrant and green tea diet increased the plasma antioxidant capacity in rats. Inclusion of pectin in the diet altered the host absorption and metabolism of polyphenols from blackcurrant and green tea.
关键词：dietary fiber; functional foods; metabolites; plant-based foods dietary fiber ; functional foods ; metabolites ; plant-based foods