Nutritional quality evaluation of newly developed high-protein genotypes of pigeonpea (Cajanus cajan)

Singh, U and Jambunathan, R and Saxena, K B and Subrahmanyam, N (1990) Nutritional quality evaluation of newly developed high-protein genotypes of pigeonpea (Cajanus cajan). Journal of the Science of Food and Agriculture, 50 (2). pp. 201-209. ISSN 0022-5142

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Abstract

Two high-protein genotypes of pigeonpea (Cajanus cajan L), HPL 8 and HPL 40, were analysed for their nutritional quality characteristics, and the results were compared with those of normal-protein genotypes (C 11 and ICPL 211). The protein content of the high-protein genotypes was higher on average by nearly 20% but their starch content, the principal constituent of the seed, was lower by about 8%. The higher fraction (about 7%) of globulin, the major storage protein, was associated with a lower glutelin fraction in the high-protein genotypes. The amino acid composition (g per 100 g protein) of the high-protein genotypes was comparable with those of the normal-protein genotypes. However, the sulphur-containing amino acids methionine and cystine were noticeably higher (about 25%) in high-protein genotypes when results were expressed in g per 100 g sample. No large differences in true protein digestibility, biological value and net protein utilisation were observed between HP and NP genotypes. True protein digestibility was significantly increased by cooking in both whole-seed and dhal samples. The values for utilisable protein were considerably higher in high-protein genotypes, suggesting their superiority from the nutritional point of view.

Item Type:	Article
Divisions:	UNSPECIFIED
CRP:	UNSPECIFIED
Subjects:	Mandate crops > Pigeonpea
Depositing User:	Siva Shankar
Date Deposited:	10 Oct 2011 08:23
Last Modified:	15 Nov 2012 04:58
URI:	http://oar.icrisat.org/id/eprint/2170
Official URL:	http://dx.doi.org/10.1002/jsfa.2740500208
Projects:	UNSPECIFIED
Funders:	UNSPECIFIED
Acknowledgement:	UNSPECIFIED
Links:	Author

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