Protein Quality Of Foods. Ii. Application Of Acceptable Parameters To Assess And Improve Diets

Lydia  A. Gloria,

Protein Quality Of Foods. Ii. Application Of Acceptable Parameters To Assess And Improve Diets

Abstract:

Poor quality of protein in copra meal diet was attributed more to poor digestibility than to poor nitrogen retention; in mungbean diet, it was due more to poor nitrogen retention than to poor digestibility. Nitrogen utilization of both diets decreased when protein levels were increased. The copra meal-fish meal mixture greatly increased its nitrogen utilization when diluted with protein, but further improvement was observed when 0.07%% methionine was added to the mixture. In mungbean diet, supplementation with methíonine greatly improved its nitrogen retention. The deleterious effect caused by feeding high level of copra meal may be attributed to high excretion of urea.

References:

BUNCE, G.E., MODIE, J.A., MIRANDA, O., GONZALES, J. and SALON, D.T. 1970. Evaluation of a cereal-legume blend to be used in a nutrition improvement program. Nutrition Rep. Internat. 1: 325-336.
HARPER, A.E. 1964. Amino acid toxicities and imbalance. In Mammalian Protein Meta-bolism (Munro and Allison, eds.). Vol. II. Academic Press, New York.
KIRIYAMA, S. 1970. Biological quality of dietary protein and urinary nitrogen metabo-lites. In Newer Methods of Nutritional Biochemistry (A. A. Albanese, ed.). Vol. 4. Academic Press, New York.
KRISHNAMURTHY, K.T., INDIRA, P.D., RAJACOPALAN, K. and SWAMINA-than, V. 1958. The nutritive value of the proteins of coconut meal and a low-cost protein food containing coconut and groundnut meals and bengal gram (Cicier arieti-num). Ann. Biochem. Exp. Med. 18: 175-178.
OSTROWSKI, H.T. 1978. Analysis for availability of amino acid supplements in foods and feeds: Biochemical and nutritional implication. In Advances in Experimental Medicine and Biology. Vol. 105. Plenium Press, New York.
PANT, R. and KAPUR, A.S. 1903. A comparative study of the chemical composition and nutritive value of some common Indian pulses and soya bean. Ann. Biochem. Exp.Med. 23: 457-460.
WOODHAM, A.A. 1978. The nutritive value of mixed protein. In: Advances in Experi mental Medicine and Biology. Vol. 105. Plenium Press, New York.