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논문 기본 정보

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학술저널
저자정보
Koo, Sung Cheol (Department of Southern Area Crop Science, National Institute of Crop Science, Rural Development Administration) Kim, Sang Gon (Department of Central Area Crop Science, National Institute of Crop Science, Rural Development Administration) Bae, Dong-Won (Central Instrument Facility, Gyeongsang National University) Kim, Hyun Young (Department of Southern Area Crop Science, National Institute of Crop Science, Rural Development Administration) Kim, Hyun Tae (Department of Southern Area Crop Science, National Institute of Crop Science, Rural Development Administration) Lee, Young Hoon (Department of Southern Area Crop Science, National Institute of Crop Science, Rural Development Administration) Kang, Beom Kyu (Department of Southern Area Crop Science, National Institute of Crop Science, Rural Development Administration) Baek, Seong-Bum (Department of Central Area Crop Science, National Institute of Crop Science, Rural Development Administration) Baek, In Youl (Department of Southern Area Crop Science, National Institute of Crop Science, Rural Development Administration) Yun, Hong Tai (Department of Southern Area Crop Sci) Choi, Man Soo
저널정보
한국응용생명화학회 Applied Biological Chemistry Applied Biological Chemistry 제58권 제3호
발행연도
2015.1
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397 - 407 (11page)

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Soybean sprouts are available throughout the year and have gained popularity as a functional food owing to their high nutritional value. In the present study, soybean seeds were germinated at different temperatures and the effects on growth characteristics, nutrient composition, and secondary metabolites were investigated. Sprout qualities such as whole length and hypocotyl length were observed to increase at a higher temperature of germination (25 vs. $20^{\circ}C$). The total protein content of the sprouts increased, whereas the total fatty acid content decreased upon germination at $25^{\circ}C$. The total phenolic content was higher in soybean sprouts than in soybean seeds. Additionally, antioxidant activity increased in a temperature-dependent manner. Both DPPH and ABTS activity were higher at $25^{\circ}C$ than at $20^{\circ}C$. Proteomic analysis was conducted to generate temperature responsive protein profiles of soybean sprouts. Using 2D gel electrophoresis and matrix-assisted laser desorption/ionization time-of-flight mass spectrometry, 33 differentially expressed spots were identified. Further analysis of these spots revealed potential function in protein storage and modification. Upon germination at $25^{\circ}C$, 16 spots increased significantly, whereas 17 protein spots were observed to decrease. Interestingly, a trypsin inhibitor was highly expressed at $25^{\circ}C$. Semi-quantitative RT-PCR analysis showed that mRNA expression level of most of genes encoding the identified proteins correlated well with their protein abundance, suggesting their temperature-dependent transcriptional regulation in soybean sprouts. In summary, our results clearly indicate an effect of temperature on growth of and secondary metabolite production in soybean sprouts.
#Antioxidant activity #Phenolic compound #Proteomics #Soybean sprout #Temperature #Two-dimensional electrophoresis

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