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Differential partitioning of coconut whey proteins and fat using aqueous two phase extraction.

Vijaya Santhi, L. and Hrishikesh, A. Tavanandi and Richa, Sharma and Prabhakar, G. and Raghavarao, K. S. M. S. (2020) Differential partitioning of coconut whey proteins and fat using aqueous two phase extraction. Fluid Phase Equilibria (2020) 112314, 503.

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Abstract

Production of Virgin Coconut Oil generates huge volumes of whey, a rich source of proteins, which is currently discarded as effluent or at best underutilized. Recovery of these proteins is a value addition improving the overall economics of the process. Aqueous two phase extraction was employed to recover these proteins from coconut whey. Besides the selection of phase forming salt and polymer molecular weight, the effect of various parameters such as tie line length (%TLL), volume ratio and pH was studied. Polyethylene glycol 6000/potassium phosphate system (5%/12% w/w, 0.2 vol ratio and 8.0 pH) was observed to be the most suitable system resulting in a recovery of 92.65% (w/w) in the salt-rich phase. Differential partitioning of protein and fat to the opposite phases (examined by phase contrast microscopy) was achieved at these conditions which facilitated the recovery of protein devoid of fat. A mechanism for the differential partitioning of whey proteins and oils is also proposed.

Item Type: Article
Uncontrolled Keywords: Aqueous two phase extraction Differential partitioning Partitioning mechanism Cocos nucifera Coconut whey proteins
Subjects: 600 Technology > 08 Food technology > 16 Nutritive value > 03 Proteins
600 Technology > 08 Food technology > 16 Nutritive value > 07 Waste utilization
600 Technology > 08 Food technology > 22 Legumes-Pulses > 06 Coconut
Divisions: Food Engineering
Depositing User: Food Sci. & Technol. Information Services
Date Deposited: 10 Mar 2020 09:59
Last Modified: 10 Mar 2020 09:59
URI: http://ir.cftri.com/id/eprint/14234

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