The copper complex pearlescent pigment was synthesized by the two steps diazotization and azo coupling. The crystal phases and the microstructure of the copper complex pearlescent pigment powders were characterized th...The copper complex pearlescent pigment was synthesized by the two steps diazotization and azo coupling. The crystal phases and the microstructure of the copper complex pearlescent pigment powders were characterized through a combination of DSC, FT-IR and SEM analysis after purification. The results indicated that the copper complex pearlescent pigment has very good thermal stability and the fine particle size is uniformly distributed, and the average grain size is around 15 μm.展开更多
以大豆分离蛋白(SPI)和壳聚糖为壁材,采用复凝聚法制备辣椒红色素(PRP)微胶囊。以谷氨酰胺转氨酶(TG)作为固化剂,研究了酶用量、固化温度、固化时间对微胶囊中的PRP在150℃条件下保留率的影响,并以戊二醛作为对照。结果表明,酶用量为3.7...以大豆分离蛋白(SPI)和壳聚糖为壁材,采用复凝聚法制备辣椒红色素(PRP)微胶囊。以谷氨酰胺转氨酶(TG)作为固化剂,研究了酶用量、固化温度、固化时间对微胶囊中的PRP在150℃条件下保留率的影响,并以戊二醛作为对照。结果表明,酶用量为3.75UTG/g SPI,在p H 6.0、45℃下固化3h,此时微胶囊可以被充分的固化,其耐热性明显增强,可以达到与戊二醛相近的固化效果。展开更多
文摘The copper complex pearlescent pigment was synthesized by the two steps diazotization and azo coupling. The crystal phases and the microstructure of the copper complex pearlescent pigment powders were characterized through a combination of DSC, FT-IR and SEM analysis after purification. The results indicated that the copper complex pearlescent pigment has very good thermal stability and the fine particle size is uniformly distributed, and the average grain size is around 15 μm.
文摘以大豆分离蛋白(SPI)和壳聚糖为壁材,采用复凝聚法制备辣椒红色素(PRP)微胶囊。以谷氨酰胺转氨酶(TG)作为固化剂,研究了酶用量、固化温度、固化时间对微胶囊中的PRP在150℃条件下保留率的影响,并以戊二醛作为对照。结果表明,酶用量为3.75UTG/g SPI,在p H 6.0、45℃下固化3h,此时微胶囊可以被充分的固化,其耐热性明显增强,可以达到与戊二醛相近的固化效果。
