Effect of processing on the solubility of proteins in some strained baby foods.

Ranganna, S. and Nanjundaswamy, A. M. and Siddappa, G. S. (1960) Effect of processing on the solubility of proteins in some strained baby foods. Proceedings of the symposium on Proteins. pp. 329-334.

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Abstract

In the course of investigations on the development of strained baby foods based on some of the typical Indian fruits and vegetables, some products were developed in which skirDmed milk powder formed one of the ingredients in the recipe. Further, in addition to canning, the products standardized were dried on a roller-drier to facilitate their storage and distribution to average Indian homes. The heat processes involved in canning as well as drying are likely to affect the solubility of the proteins present in these products. It was, therefore, of interest to study the effect of the various processes involved on the solubility of the proteins. The results are presented in this paper. Rice and Beuk1 have reviewed the effects of heat processing on the nutritive value of proteins. J 01y2 has discussed the reversible denaturation of proteins. The amino acids of pure proteins are quite stable towards heat. In mixtures, however, particularly in the presence of non-protein materials like carbohydrates, they may not be equally stable. Woods, Beeson and Bolin3 found that heat treatment reduced the protein value of field peas. Armbruster and Murray4 reported that protein quality of peas was not impaired on canning. The experimental results regarding the effect of heat on protein quality have not so far been conclusive1 • Joly2 states that it has not so far been possible to give a quantitative structural description of heat-denaturation of proteins under any given conditions. Generally, the insolubility of the protein in a medium in which it is soluble, while still native, is taken as the criterion for determining its denaturation5 • In the present investigation, loss of solubility in water and salt solution has been adopted as the main criterion.

Item Type:	Article
Uncontrolled Keywords:	strained baby foods, Indian fruits, vegetables, Banana custard blend
Subjects:	600 Technology > 01 Medical sciences > 03 Child nutrition 600 Technology > 08 Food technology > 16 Nutritive value > 03 Proteins 600 Technology > 08 Food technology > 18 Processed foods
Divisions:	Dept. of Biochemistry
Depositing User:	Food Sci. & Technol. Information Services
Date Deposited:	09 Jul 2012 05:32
Last Modified:	09 Jul 2012 05:32
URI:	http://ir.cftri.res.in/id/eprint/3987

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