维生素和矿物质

Nutritional Properties of Some BRRI HYV Rice in Bangladesh

Abstract

Habibul Bari Shozib, Saima Jahan, Muhammad Zakir Sultan, Samsul Alam, Suman Chandra Das, Rifat Bin Amin, Mahedi Hasan and Muhammad Ali Siddiquee

Rice is relatively a better source of vitamins, minerals, protein and starch among cereals. In order to identify nutraceutically enriched HYV rice, a total of 35 BRRI released HYVs were subjected to analyze water soluble vitamins such thiamin and riboflavin along with physicochemical and cooking properties. In addition, some profound vitamin enriched HYVs were further subjected to analyze for mineral content such as zinc, iron, phytic acid (PA) and molar ratio of PA to minerals and these were evaluated over variation of degree of milling (DOM) and polishing time (Seconds). Our data reveals that BRRI dhan36 has the highest thiamin content (mg100^-1g) of 1.15 followed by BRRI dhan29 (1.14), BRRI dhan48 (1.12), BRRI dhan28 (1.09) and BRRI dhan43 (1.08), BR16 (1.09), BR25 (0.93), BRRI dhan38 (0.93), BRRI dhan64 (0.89) and BRRI dhan42 (0.85) among all tested 35 BRRI HYVs in Bangladesh. Both BRRI dhan43 and BRRI dhan42 have higher Zn content (ppm) of 27.17 and 27.12 among all tested BRRI HYVs rice varieties at 10% DOM. In addition, we have also observed that grain size and shape have significant impact on degree of milling (DOM) and mineral content trends to be decreased significantly over increasing the polishing time. Considering all nutritional values such as water-soluble vitamins specially thiamin, protein, apparent amylose content, cooking time, elongation ratio, imbibition’s ratio, mineral contents such as Zn, Fe, PA and molar ratio of PA to minerals into account, BRRI dhan43 followed by BRRI dhan42 found suitable to treat as nutriceutically enriched HYV rice in Bangladesh among all tested HYVs. Consuming both BRRI dhan43 and BRRI dhan42 as nutraceutically enriched rice alternately, might impact on nutritionally challenged vulnerable portion of Bangladeshi population specially women and children under five years of age.