共查询到20条相似文献,搜索用时 265 毫秒
1.
2.
木瓜蛋白酶酶解7S大豆球蛋白的研究 总被引:1,自引:0,他引:1
采用实验室提取的7S大豆球蛋白为底物,以水解度为试验考察指标,选择底物浓度、温度、时间、pH值、木瓜蛋白酶酶添加量进行试验.结果表明,木瓜蛋白酶酶解7S大豆球蛋白的最佳工艺条件为:底物浓度4.5%,酶解时间3 h,体系pH值7.2,酶解温度50℃,酶用量为6 000 U/g.原7S大豆球蛋白氮溶解指数(NSI)为40.6%,经最佳酶解条件处理后其NSI值为78.5%. 相似文献
3.
姬松茸蛋白酶解工艺的研究 总被引:1,自引:1,他引:0
本文研究了复合蛋白酶(1.5 AU/g)和风味蛋白酶(500 LAPU/g)共同作用水解姬松茸蛋白的工艺,通过试验确定了两种酶同时作用的最佳条件为:酶(m复合蛋制品酶:m风味蛋白酶=1)的底物质量百分比为1%,料水比为1/12,酶解时间为8h,酶解温度为50℃,pH为8.0,所得酶解液香味浓郁,最高水解度可达26.38%. 相似文献
4.
5.
6.
7.
8.
9.
10.
11.
13.
14.
16.
17.
18.
《Food chemistry》2005,91(3):457-462
The aggregation process of the proteins coagulated by glucono-δ-lactone (GDL) was monitored by using atomic force microscopy (AFM). Solutions of 11S, 7S and 2S proteins, after heating at 100 °C for 10 min, were mixed with GDL and formed aggregates with different aggregation profiles. When the three protein solutions (11S, 7S and 2S) were mixed with GDL and deposited onto the mica for 1, 2 and 4 min, 11S proteins formed the largest clusters of aggregates, 2S proteins formed smaller clusters of aggregates than 11S but bigger clusters of aggregates than 7S and 7S proteins formed the smallest cluster of aggregates. It was also found, by turbidity measurement, that when GDL was added to the three protein fractions, the level of turbidity was in the order of 11S > 2S > 7S. Both these results showed that, when GDL was added to the three protein fractions, the speed of aggregation was in the order of 11S > 2S > 7S. 相似文献
19.
20.
本季的色彩多元而纯净,时而柔媚似少女的面颊.时而又喧闹如众神的盛宴,纯净无瑕的颜色一如波提切利笔下初入世间的维纳斯——以清澈羞涩的双眸注视远方。 相似文献