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Improving Plasticity of Milk Fat for Use in Baking by Fractionation

Yella Reddy, S. (2010) Improving Plasticity of Milk Fat for Use in Baking by Fractionation. Journal of the American Oil Chemists Society, 87 (5). pp. 493-497.

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Abstract

Milk fat is soft with a low solids content at all temperatures up to 37 �C, which makes its usage limited. To extend its usage, the fat was fractionated to obtain stearin (St) with a 50–55% yield by dry fractionation. The stearin was found to contain an increased solids content at all temperatures and to have improved plasticity compared to its native fat. The physical properties of St were found to be similar to those of commercial bakery shortenings or vanaspati. The melting profiles and the solidification properties of milk fat St are similar to those of commercial bakery shortening. Also, St does not require extended stabilization or tempering, as it transferred to the most stable form quickly like commercial bakery fat. Milk fat St showed higher proportions of saturated fatty acids including those with short chains, compared to commercial vanaspati, the later having a high trans fatty acid content (15%). The olein obtained could also be used as a cooking medium or as a salad oil since it contains a lower solids content at ambient temperatures compared to its parent milk fat.

Item Type: Article
Uncontrolled Keywords: Milk fat Fractionation Plastic fat Bakery shortening
Subjects: 600 Technology > 08 Food technology > 02 Baking
600 Technology > 08 Food technology > 19 Lipids-oils/fats
Divisions: Lipid Science and Traditional Foods
Depositing User: Food Sci. & Technol. Information Services
Date Deposited: 26 Feb 2010 09:37
Last Modified: 28 Nov 2017 07:12
URI: http://ir.cftri.com/id/eprint/9356

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