摘要
以全脂大豆粉为原料,采用超声波辅助水酶法提取大豆油,并对其中的超声波处理条件和酶解条件进行研究,经单因素实验与正交实验,确定水酶法提取大豆油的适宜酶解条件为:料液比1∶6,酶用量2.0%,pH 9.0,酶解温度55℃,酶解时间4 h。在此条件下大豆油提取率为73.56%。水酶法提油前对全脂大豆粉进行超声波预处理,可有效提高大豆油提取率。在超声波温度50℃,超声波功率400 W下处理15 m in可将大豆油提取率提高至86.13%,比未经超声波预处理的高出12.57%。
Aqueous enzymatic extraction of soybean oil from full - fat soybean powder assisted by ultrasound was studied, and the enzymatic hydrolysis conditions were optimized emphatically. The hydrolysis conditions were determined as follows ： ratio of stuff to water 1 ： 6, dosage of Alcalase 2.0%, temperature 55℃, time 4 h, pH 9. 0. Under the optimal conditions, the oil extraction efficiency reached 73.56%. The ultrasound irradiation at 400 W and 50℃ for 15 min followed by aqueous enzymatic extraction could increase the oil extraction efficiency to 86.13%, which was 12.57% higher than that of non - irradiationwith ultrasound.
出处
《中国油脂》
CAS
CSCD
北大核心
2009年第12期10-14,共5页
China Oils and Fats
关键词
全脂大豆粉
水酶法
超声波
大豆油
full -fat soybean powder
aqueous enzymatic extraction
ultrasound
soybean oil
