Functional Properties of Seed Protein Isolate from Chinese Wolfberry (Lycium barbarum L.) Grown in Ningxia

doi:10.7506/spkx1002-6630-201309007

Abstract

Abstract:

Chinese wolfberry seed protein isolate (CWSPI) was extracted by the traditional method of alkali extraction and
acid precipitatio from Chinese wolfberry seeds. Amino acid analysis showed that the amino acid composition of CWSPI was
well-balanced and close to the FAO/WHO standards for composition pattern of essential amino acids, with high glutamic
acid content. CWSPI possessed excellent oil-adsorbing capacity and emulsifying properties, general solubitly and waterholding
capacity, and relatively poor foaming capacity and foam stability. The SDS-PAGE pattern of CWSPI displayed 6
subunits with molecular weight of 48, 35, 32, 20.4, 19 kD and 18.5 kD.

Key words: Chinese wolfberry seed protein isolate, amino acid, functional property, molecular weight

CLC Number:

TS201.21

WU Hua-yu，LIU Dun-hua*. Functional Properties of Seed Protein Isolate from Chinese Wolfberry (Lycium barbarum L.) Grown in Ningxia[J]. FOOD SCIENCE, 2013, 34(9): 28-32.

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