所有作者:张雪梅 郭顺堂 李莹辉 宋锦萍
作者单位:中国农业大学食品学院,蛋白质加工利用研究室
论文摘要:Hydrolysates A and P were derived from β-Conglycinin hydrolyzed by Alcalse and Pronase respectively, and then analyzed by gel chromatography of Sephadex G-25。 Chromatography patterns showed that carbohydrates were mainly existed in fractions A1 of hydrolysate A and P1 of hydrolysate P, with carbohydrate content of 8。23% and 9。66% respectively, much higher than other fractions。 The results of thin-layer chromatography for fractions A1 and P1 confirmed that the two fractions were carbohydrate-binding peptides, referred as CBP-A and CBP-P respectively。 Two non-carbohydrate peptides A (NCP-A) and P (NCP-P) were derived from CBP-A and CBP-P treated with glycosidase F respectively。 Hydrolysates A and P and fractions from them were observed inhibitory effect on mitogen-induced proliferation of murine splenocytes。 Compared to NCP-A and A2, CBP-A had lower inhibitory effect at concentration of 0。5~5μg/ml, but stronger inhibitory effect at concentration of 500~100μg/ml。 CBP-P had stronger inhibitory effect on mitogen-induced proliferation of splenocytes at all concentration of 0。5~1000μg/ml except at 50μg/ml。 These results indicated that glycopeptides could be isolated from soy peptides。 And inhibitory effects on mitogen-induced proliferation of splenocytes were influenced by carbohydrate chain。
关键词: β-伴大豆球蛋白 糖肽 增殖 脾细胞
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