Le Hoang Du, Le Van Viet Man
Department of Food Technology, Ho Chi Minh City University of Technology, Ho Chi Minh City, Vietnam.
J Food Sci Technol. 2015 Apr;52(4):2474-8. doi: 10.1007/s13197-014-1285-y. Epub 2014 Feb 22.
Mixtures of coconut milk and gelatin solution were treated by ultrasound, mixed with maltodextrin and subsequently spray-dried to yield powder. The effects of ultrasonic power and sonication time on the microencapsulation efficiency (ME) and microencapsulation yield (MY) of coconut fat were investigated. The results indicated that increase in ultrasonic power from 0 to 5.68 W/g and in sonication time from 0 to 2.5 min augmented ME and MY of coconut fat. However, treatment with sonication power higher than 5.68 W/g led to a drop in fat ME and MY, mainly due to aggregation of fat particles and that blocked the adsorption of gelatin molecules on the particle surface.
将椰奶和明胶溶液的混合物进行超声处理,与麦芽糊精混合,随后进行喷雾干燥以得到粉末。研究了超声功率和超声处理时间对椰子油微胶囊化效率(ME)和微胶囊化产率(MY)的影响。结果表明,超声功率从0增加到5.68 W/g以及超声处理时间从0增加到2.5分钟会提高椰子油的ME和MY。然而,超声功率高于5.68 W/g的处理会导致脂肪ME和MY下降,主要是由于脂肪颗粒聚集,阻碍了明胶分子在颗粒表面的吸附。