【摘要】 猕猴桃籽油中不饱和脂肪酸含量较高,特别是亚麻酸含量高达63.99%。为防止猕猴桃籽油的氧化,采用喷雾干燥法对猕猴桃籽油进行微胶囊化研究,并对产品进行了电镜观察和氧化试验。结果表明:壁材采用1∶1的大豆分离蛋白与麦芽糊精,芯材与壁材的配比为1∶1.5,料液总固形物含量为25%,在30～35MPa压力下均质处理,喷雾干燥进风温度180℃,出风温度80℃,制得的微胶囊结构理想,抗氧化性较好。更多还原

【Abstract】 Kiwi fruit seed oil has higher content of unsaturated fatty acid, which, specially, contains more than 63.99% linolenic acid. For avoiding oxidation of the oil, the study detailed the microencapsulation of kiwi fruit seed oil by spray-drying method, and the structure of the products was observed by scanning electron microscope (SEM) as well as the products were studied by oxidation experiment. The result showed that microencapsulation in good structure and antioxidation by spray-drying technological parameters as follows can be obtained: soybean protein isolation (SPI) and maltodextrin was in proportion of 1∶1 as the wall materials, the proportion of kiwi fruit seed oil to wall materials was 1∶1.5, the concentration of emulsion was 25% (W/V), homogenizing pressure was 30~35 MPa, temperatures of entering wind and out wind were 180℃ and 80℃, respectively.更多还原