The effect of a supplementary protein food containing fish flour, groundnut flour and Bengal gram flour and fortified with vitamins on the digestibility coefficient, biological value and net protein utilization of poor rice diet given to undernourished children


Shurpalekar, S.R.; Daniel, V.A.; Moorjani, M.N.; Lahiry, N.L.; Swaminathan, M.; Sreenivasan, A.; Subrahmanyan, V.

Indian Journal of Nutrition and Dietetics 1(1): 19-24

1964


The effect upon the biological value and digestibility coefficient of the proteins and the net protein utilization of supplementing a poor Indian rice diet daily, with 40 g of protein food was studied in 7 pairs of boys aged 9-10 years. The supplement was a 2:1:1. blend of groundnut flour, Bengalgram flour and fish flour from oil sardine, fortified adequately with vitamins A and D, thiamine and riboflavin. It provided about 20g extra protein daily. The true digestibility coefficient of the mixed proteins of rice-protein food diet (88.8) was significantly higher than that (83.5) observed for the control rice diet. The biological value of the proteins of the rice diet supplemented with the protein food (52.0) was lower than that (56.2) of the proteins of control rice diet. This was due to the fact that the protein content of the rice-protein food diet (12.7%) was higher than that (9.1%) of the control rice diet. The net protein utilization (NPU) of the rice diet supplemented with the protein food (46.2) was nearly of the same order as that (46.9) of rice diet. The NPU of the rice-protein food diet (52.4) was, however, higher than that (48.4) obtained for the control rice diet. The net available protein per kg body weight from the rice diet (0.98g) was nearly equal to the FAO reference protein requirements (1.05g) but lower than that (1.34) from the rice-protein food diet.