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Use of organic solvents to decolourise leaf protein concentrate.

Gurmukh, Singh. and Singh, N. (1985) Use of organic solvents to decolourise leaf protein concentrate. Journal of Food Science and Technology, India, 22 (6). 436-438, 7 ref..

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Abstract

Solvents (methanol, ethanol, n-propanol, iso-propanol, n-butanol, iso-butanol, iso-amyl alcohol, ethyl acetate, acetone and mixtures of these) were used for removing the pigments from acid and heat precipitated leaf protein concentrate (LPC). For acid precipitated LPC the min. vol. of solvent required was with acetone, followed by iso-propanol less than iso-propanol + hexane (2:1) and acetone + hexane (2:1) less than n-propanol and n-butanol less than ethanol. For heat precipitated LPC the order of min. solvent requirements was acetone less than iso-propanol less than iso-propanol + hexane (2:1) less than n-propanol and n-butanol less than acetone + hexane (2:1). The solvent extracted LPC contained higher quantities of protein (49.8-70.8%) than the control. Acid precipitated and solvent extracted LPC had lighter colour than heat treated LPC. Lightest coloured LPC by heat precipitation was obtained with iso-propanol + hexane (2:1), and iso-propanol treated LPC gave lightest colour in acid treated LPC.

Item Type: Article
Uncontrolled Keywords: PROTEIN-PRODUCTS; leaf protein concentrates, solvents organic decoloration of; DECOLORATION-; SOLVENTS-; CONCENTRATION-
Subjects: 600 Technology > 08 Food technology > 16 Nutritive value > 09 Leaf protein
Depositing User: Food Sci. & Technol. Information Services
Date Deposited: 01 Feb 2021 04:10
Last Modified: 01 Feb 2021 04:10
URI: http://ir.cftri.com/id/eprint/6578

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