Effect of dietary fibres on bioavailability of vitamin A and thiamine.
Different sources of dietary fibre (cellulose, pectin, Isabgol, cabbage and guava) were fed to weaning rats for 5 weeks to study their effect on serum vitamins. Both the plant foods (cabbage and guava) were analysed for dietary fibre. Guava was found to be a good source of dietary fibre constituting 51.77% of dry pulp, whereas cabbage contained only 16.17%. Cellulose was the major component of dietary fibre in both the plant foods. The concentration of vitamin A and thiamine in the serum of fibre-fed rats was significantly lower than that of rats on a fibre-free diet. However, the amount of vitamin A in serum decreased significantly with the increase in level of dietary fibre, but the decrease was non-significant in the case of thiamine.
Khokhar
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S
Department of Foods & Nutrition, Haryana Agricultural University, Hisar, India.
Kapoor
A C
AC
D000818:Animals; D001682:Biological Availability; D001937:Brassica; D002482:Cellulose / Q000032:analysis / Q000494:pharmacology; D004043:Dietary Fiber / Q000032:analysis / Q000494:pharmacology*; D005638:Fruit; D008031:Lignin / Q000032:analysis / Q000494:pharmacology; D010368:Pectins / Q000032:analysis / Q000494:pharmacology; D011134:Polysaccharides / Q000032:analysis / Q000494:pharmacology; D051381:Rats; D013831:Thiamine / Q000097:blood / Q000493:pharmacokinetics*; D014801:Vitamin A / Q000097:blood / Q000493:pharmacokinetics*
D004043:Dietary Fiber; D011134:Polysaccharides; D014801:Vitamin A; C007916:hemicellulose; D010368:Pectins; D002482:Cellulose; D008031:Lignin; D013831:Thiamine