中华蚱蜢蛋白质的提取  

Studies on the Protein Extracting Technology and Classifications of Acria cinerea

作　　者：庞凌云[1] 段玉峰[1] 周美红[1] 肖红[1] 

机构地区：[1]陕西师范大学食品工程系,陕西西安710062

出　　处：《无锡轻工大学学报（食品与生物技术）》2005年第1期102-104,共3页Journal of Wuxi University of Light Industry

摘　　要：对中华蚱蜢蛋白质进行了氨基酸组成分析、分类及提取工艺等方面的研究. 结果表明,中华蚱蜢蛋白质量分数56 84%,必需氨基酸质量分数 24 9%,具有很高的利用价值;各类型蛋白的提取率分别为水溶性蛋白43 4%,酸溶性蛋白 1 8%,碱溶性蛋白 1 9%,醇溶性蛋白 0 3%;提取水溶性蛋白较优的条件为固液比(g∶mL)1∶15,缓冲液 pH值 7 6,NaCl质量浓度 1 0 g/dL,提取时间4 h,提取率可为27 1%.In this paper, the composition of aminal acids, classifications and extracting technology of Acria cinerea protein were studied. The continent of Acria cinerea protein was 56.84%, the essential aminal acids was 24.9% and of high utilization value, it was with the highly utilized value. The protein of Acria cinerea was divided into water dissolved protein (43.4%), acid dissolved protein (1.8%), alkaline dissolved protein (1.9%) and mellow dissolved protein (0.3%). The result showed that the optimum extracting conditions were as follows: the ratio of solid/liquid (g/mL) was 1/15, pH of solution was 7.6, the NaCl concentration in the extractive reagent was 1.0 g/dL, and the time of extraction was 4 hours. The ratio of extraction was 27.1%.

关 键 词：中华蚱蜢 蛋白质 组成 分类 提取 

分 类 号：Q966[生物学—昆虫学]