Digestion and Metabolism of Pectin

Haider, Kathrin; Wilde, Peter J.

doi:10.1007/978-3-030-53421-9_8

Cited by 3 publications

(1 citation statement)

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“…The addition of pectin, a fermentable fiber, affected the anthocyanin, catechin and flavonol metabolism, as indicated by the absence of some of the parent compounds and their metabolites in the urine, feces and plasma of rats fed diet with 4 and 8% pectin. Most polyphenols display limited bioavailability, but adding pectin to the diet can improve the polyphenol absorption by delaying the gastric emptying, which extends absorption in the small intestine, therefore enhancing the bioavailability of polyphenols [ 19 , 20 , 21 ]. Polyphenols that escape digestion in the small intestine reach the large intestine, where they can act as a nutrient source to some resident microorganisms, thus inducing changes in the microbiota composition.…”

Section: Resultsmentioning

confidence: 99%

Pectin Influences the Absorption and Metabolism of Polyphenols from Blackcurrant and Green Tea in Rats

Paturi

Butts

Joyce

et al. 2021

Foods

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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.

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Section: Resultsmentioning

confidence: 99%