水力空化作用强化油酸酰氯酰化大豆蛋白工艺的研究

Hydraulic cavitation enhancement of acylation of soybean protein by oleic acid chloride

以大豆粕为研究对象,通过水力空化作用强化油酸酰氯酰化大豆蛋白工艺,设计了水力空化作用强化油酸酰氯酰化大豆蛋白设备,研究了水力空化压力、水力空化时间、水力空化温度、料液比对油酸酰氯酰化大豆蛋白产物产率的影响,以单因素实验为基础,利用响应面优化了水力空化作用强化油酸酰氯酰化大豆蛋白最佳工艺,并对酰化产物表面活性进行了测定与比较。结果表明:水力空化作用强化油酸酰氯酰化大豆蛋白最优工艺条件为水力空化压力0.33 MPa、水力空化时间48 min、水力空化温度65℃、料液比1.8∶1,此条件下的产率为98.38%,酰化产物表面活性性能优越。

With soybean meal as the study object, through strengthening the acylation process of soybean protein by oleic acid chloride using hydraulic cavitation, hydraulic cavitation strengthening equipment was designed, and the effects of hydraulic cavitation pressure, hydraulic cavitation time, hydraulic cavitation temperature and ratio of material to liquid on yield of oleic acid chloride acetylized soybean protein product were researched. Based on single factor experiment, the acylation conditions were optimized by response surface methodology, and the surface activity of the acetylized product was determined and compared. The results showed that the optimal conditions of hydraulic cavitation strengthening process of acylation of soybean protein by oleic acid chloride were obtained as follows：hydraulic cavitation pressure 0.33 MPa, hydraulic cavitation time 48 min,hydraulic cavitation temperature 65 ℃ and ratio of material to liquid 1.8：1. Under the optimal conditions,the yield was 98.38% ,and the surface activity of the acetylized product was superior.