Effect of fibre and phytate of regional diet on the apparent absorption of zinc in rats.

Kanchana, S. and Shurpalekar, K. S. (1989) Effect of fibre and phytate of regional diet on the apparent absorption of zinc in rats. Nutrition Reports International, 39 (4). pp. 727-734.

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Abstract

Effects of reducing the phytate content of the ragi (Eleusine coracana)-based regional diet and addition of fibre as neutral-detergent fibre (NDF), isolated from that diet to a semisynthetic diet on the absorption, serum and femur concentrations of zinc were studied in rats. Intestinal phosphatase activity was also studied. Rats fed on the regional diet grew less well than those fed on a semisynthetic diet. Removal of phytate from the ragi diet did not impair the growth response. Total Zn absorption decreased with the semisynthetic diet compared with the ragi-based regional diet which contained larger amounts of Zn. On similar Zn intakes, percentage absorption of Zn with the regional diet increased significantly, when the phytate content of the regional diet was decreased by phytase. Addition of NDF to the semisynthetic diet did not affect Zn absorption. Serum and femur Zn concentrations in rats given different experimental diets were within the normal range of values. In rats fed on the regional diet, alkaline phosphatase and phytase activities decreased significantly compared with those given a semisynthetic diet with and without NDF. Dephytinizing the regional diet increased the enzyme activity to values observed on semisynthetic diets.

Item Type:	Article
Uncontrolled Keywords:	Zinc-; absorption-; fibre-; phytic-acid
Subjects:	600 Technology > 01 Medical sciences > 13 Nutrition-Human 600 Technology > 08 Food technology > 16 Nutritive value > 04 Vitamins 600 Technology > 08 Food technology > 18 Processed foods > 01 Dietary Fiber
Divisions:	Dept. of Biochemistry
Depositing User:	Food Sci. & Technol. Information Services
Date Deposited:	29 Jul 2021 05:31
Last Modified:	29 Jul 2021 05:31
URI:	http://ir.cftri.res.in/id/eprint/8516

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