Pectin Influences the Absorption and Metabolism of Polyphenols from Blackcurrant and Green Tea in Rats
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...
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| Format: | Article |
| Language: | English |
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MDPI AG
2021-04-01
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| Series: | Foods |
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| Online Access: | https://www.mdpi.com/2304-8158/10/4/813 |
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| author | Gunaranjan Paturi Christine A. Butts Nigel I. Joyce Paula E. Rippon Sarah C. Morrison Duncan I. Hedderley Carolyn E. Lister |
| author_facet | Gunaranjan Paturi Christine A. Butts Nigel I. Joyce Paula E. Rippon Sarah C. Morrison Duncan I. Hedderley Carolyn E. Lister |
| author_sort | Gunaranjan Paturi |
| collection | DOAJ |
| description | 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. |
| first_indexed | 2024-03-10T12:28:48Z |
| format | Article |
| id | doaj.art-3555d305be2549f992722f208bf9880f |
| institution | Directory Open Access Journal |
| issn | 2304-8158 |
| language | English |
| last_indexed | 2024-03-10T12:28:48Z |
| publishDate | 2021-04-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Foods |
| spelling | doaj.art-3555d305be2549f992722f208bf9880f2023-11-21T14:48:07ZengMDPI AGFoods2304-81582021-04-0110481310.3390/foods10040813Pectin Influences the Absorption and Metabolism of Polyphenols from Blackcurrant and Green Tea in RatsGunaranjan Paturi0Christine A. Butts1Nigel I. Joyce2Paula E. Rippon3Sarah C. Morrison4Duncan I. Hedderley5Carolyn E. Lister6The New Zealand Institute for Plant and Food Research Limited, Private Bag 92169, Auckland 1142, New ZealandThe New Zealand Institute for Plant and Food Research Limited, Private Bag 11600, Palmerston North 4442, New ZealandThe New Zealand Institute for Plant and Food Research Limited, Private Bag 4704, Christchurch 8140, New ZealandThe New Zealand Institute for Plant and Food Research Limited, Private Bag 4704, Christchurch 8140, New ZealandThe New Zealand Institute for Plant and Food Research Limited, Private Bag 4704, Christchurch 8140, New ZealandThe New Zealand Institute for Plant and Food Research Limited, Private Bag 11600, Palmerston North 4442, New ZealandThe New Zealand Institute for Plant and Food Research Limited, Private Bag 4704, Christchurch 8140, New ZealandConsumption 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.https://www.mdpi.com/2304-8158/10/4/813dietary fiberfunctional foodsmetabolitesplant-based foods |
| spellingShingle | Gunaranjan Paturi Christine A. Butts Nigel I. Joyce Paula E. Rippon Sarah C. Morrison Duncan I. Hedderley Carolyn E. Lister Pectin Influences the Absorption and Metabolism of Polyphenols from Blackcurrant and Green Tea in Rats Foods dietary fiber functional foods metabolites plant-based foods |
| title | Pectin Influences the Absorption and Metabolism of Polyphenols from Blackcurrant and Green Tea in Rats |
| title_full | Pectin Influences the Absorption and Metabolism of Polyphenols from Blackcurrant and Green Tea in Rats |
| title_fullStr | Pectin Influences the Absorption and Metabolism of Polyphenols from Blackcurrant and Green Tea in Rats |
| title_full_unstemmed | Pectin Influences the Absorption and Metabolism of Polyphenols from Blackcurrant and Green Tea in Rats |
| title_short | Pectin Influences the Absorption and Metabolism of Polyphenols from Blackcurrant and Green Tea in Rats |
| title_sort | pectin influences the absorption and metabolism of polyphenols from blackcurrant and green tea in rats |
| topic | dietary fiber functional foods metabolites plant-based foods |
| url | https://www.mdpi.com/2304-8158/10/4/813 |
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