On the Role of Disulfide Bonds in Polymerization of Soybean 7S Globulin during Storage
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概要
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Modification of soybean 7S globulin with N-ethylmaleimide (NEM) was effective for preventing humidity-induced insolubilization during storage. The sulfhydryl-disulfide interchange reaction and/or oxidation of the sulfhydryl groups to form disulfide bonds closely related to the polymerization of the 7S globulin. A dimer, consisting of α and α subunits linked with disulfide bonds, was observed in the polymerized 7S globulin fractions, but this dimer was not readily apparent in the NEM-7S globulin. The formation of the dimer certainly initiates the insolubilization of the 7S globulin during storage. Although the β subunit had sulfhydryl groups, it did not take a part in the formation of the dimer.
- 社団法人 日本農芸化学会の論文
著者
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Yamauchi Fumio
Department Of Agricultural Chemistry Faculty Of Agriculture Tohoku University
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Hoshi Yuji
Department Of Material And Biological Chemistry Faculty Of Science Yamagata University
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SHIBASAKI Kazuo
Sendai Shirayuri Junior College
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