超声波辅助SDS反胶束体系前萃米糠蛋白的工艺研究  

Forward extraction of rice bran protein by SDS reverse micelles assisted by ultrasound

作　　者：肖信锦 李阳洋[2] 钟盛华[1] 

机构地区：[1]江西农业大学理学院,南昌330045 [2]江西农业大学国土资源与环境学院,南昌330045

出　　处：《中国油脂》2017年第3期103-107,共5页China Oils and Fats

摘　　要：利用超声波辅助SDS(十二烷基磺酸钠)/异辛烷-正辛醇反胶束体系萃取米糠蛋白。主要考察了料液比、SDS质量浓度、W_O值、超声功率、前萃时间、增溶水p H和KCl浓度对米糠蛋白前萃率的影响。通过正交实验设计优化得到超声波辅助最佳萃取工艺条件为料液比0.015∶1、SDS质量浓度0.08 g/m L、W_O值30、超声功率225 W、前萃时间40 min、增溶水p H 7.5和KCl浓度0.25 mol/L。在最佳条件下,米糠蛋白前萃率为86.96%,比常规振荡萃取的高17.14个百分点。Rice bran protein was extracted using sodium dodecyl sulfonate（ SDS）/isooctane- n- octanolassisted by ultrasound. The effects of ratio of material to liquid, mass concentration of SDS, water content（ Wo） , ultrasonic power, forward extraction time, water pH and KC1 concentration on the forward extrac-tion rate of rice bran protein were investigated. The results showed that the optimal ultrasound - assistedextraction conditions were obtained by orthogonal experiment as follows： ratio of material to liquid0.015： 1, mass concentration of SDS 0.08 g/mL, water content（Wo） 30, ultrasonic power 225 W,forward extraction time 40 rain, water pH 7.5, KC1 concentration 0.25 mol/L. Under these conditions,the forward extraction rate of rice bran protein was 86.96% , increasing by 17.14 percentage points thanforward extraction rate of common oscillation extraction.

关 键 词：米糠蛋白 超声波辅助 反胶束萃取 

分 类 号：TS210.9[轻工技术与工程—粮食、油脂及植物蛋白工程]