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本文采用界面沉积法,以聚苯乙烯为衣膜制备了α-淀粉酶微型胶囊。方法如下:取12%(w/v)聚苯乙烯的二氯甲烷溶液25份,加入含有1%(w/v)α-淀粉酶的8%(w/v)明胶水溶液5份,搅拌30分钟,使成初乳,然后缓缓滴入温度为30°、pH6的2%(w/v)明胶水溶液200份中,边加边搅,即得复乳,按每小时升温8℃的速度,使温度升到36℃,搅拌,除尽溶媒,干燥30分钟,收集并洗净后冷藏。聚苯乙烯可选二氯甲烷、氯仿、四氯化碳,苯作为溶媒。其中以四氯化碳与聚苯乙烯的亲和性比较好,
In this paper, the interface deposition method to polystyrene as the membrane preparation of α-amylase microcapsules. The method is as follows: take 25 parts of 12% (w / v) polystyrene solution in dichloromethane, add 5 parts of 8% (w / v) gelatin aqueous solution containing 1% (w / v) Min to make into colostrum, and then slowly dropped into a temperature of 30 °, pH6 2% (w / v) 200 parts of gelatin aqueous solution, while stirring, that was double emulsion, the temperature per hour increased by 8 ℃ , The temperature was raised to 36 ℃, stirring, except for the solvent, dried for 30 minutes, collected and washed and refrigerated. Polystyrene optional dichloromethane, chloroform, carbon tetrachloride, benzene as a solvent. Which carbon tetrachloride and polystyrene affinity is better,