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The change in gamma-aminobutyric acid, phytic acid and other compositions in soybean during germination
Journal article

The change in gamma-aminobutyric acid, phytic acid and other compositions in soybean during germination

Doan Duc Nguyen and Tuoi Thi Dinh
Vietnam Journal of Agricultural Sciences , Vol.18(6), pp.445-453
2020
url
https://tapchi.vnua.edu.vn/wp-content/uploads/2020/07/nguyen-duc-doan.pdfView
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Abstract

The objective of this study was to evaluate the effect of germination temperature and time on gammaaminobutyric acid (GABA), phytic acid (PA) and other compositions (protein, lipid and ash). The Vietnamese variety of soybean DT2010 was germintated at 26, 28 and 30C for 24, 36 and 48h. GABA was analysed using high performance liquid chromatography (HPLC). Phytic acid was determined by the colorimetric method. Protein, lipid and ash were analysed using Kjeldahl, extraction in n-hexan and incineration method, respectively. GABA content increased by 2.2 times in the sample germinated at 30C/36h, meanwhile protein increased by 1.15 times in the samples germinated at 28C/48h, as compared to those in the ungerminated samples. In contrast, phytic acid content decreased by 25.30% in the samples germinated at 28C/48h; lipid and ash content also decreased by 39.52% and 62.85%, respectively, in the samples germinated at 30C/48h, as compared to those in the ungerminated samples. These results would be such a benefit for producing soybean derived food products for human health. Keywords: Soybean, germination, soybean composition, gamma-aminobutytric acid, phytic acid.

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