한빛사 논문
Abstract
Eun-Ji Gua, Dong Wook Kima, Gwang-Ju Janga, Seong Hwa Songa, Jae-In Leea, Sang Bong Leea, Bo-Min Kima, Yeongrae Choa, Hyeon-Jeong Leea, Hyun-Jin Kima, b,*
a Division of Applied Life Sciences (BK21 plus), Gyeongsang National University, 501 Jinjudaero, Jinju, Gyeongsang, Republic of Korea
b Department of Food Science & Technology, and Institute of Agriculture and Life Science, Gyeongsang National University, 501 Jinjudaero, Jinju, Gyeongsang, Republic of Korea
*Corresponding author.
Abstract
We investigated the metabolite profile of soybean sprouts at 0, 1, 2, 3, and 4 days after germination using gas chromatography?mass spectrometry (GC?MS) and liquid chromatography?MS (LC?MS) to understand the relationship between germination and nutritional quality. Data were analyzed by partial least squares-discriminant analysis (PLS-DA), and sprout samples were separated successfully using their PLS-DA scores. Fifty-eight metabolites, including macromolecular derivatives related to energy production, amino acids, myo-inositol metabolites, phytosterols, antioxidants, isoflavones, and soyasaponins, contributed to the separation. Amino acids, myo-inositol metabolites, isoflavone aglycones, B soyasaponins, antioxidants, and phytosterols, associated with health benefits and/or taste quality, increased with germination time while isoflavone glycosides and DDMP soyasaponins decreased. Based on these metabolites, the metabolomic pathway associated with energy production in soybean sprouts is suggested. Our data suggest that sprouting is a useful processing step to improve soybean nutritional quality, and metabolomic analysis is useful in understanding nutritional change during sprouting.
Keywords : Soybean sprouts; Germination; Metabolomics; GC-MS; LC-MS
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