2_4_D_明胶_壳聚糖_葡甘聚糖复合微球的制备及其性能.pdf

18 6 Vol1 18, No1 6 2008 12 LEATH ER SCIENCE AND ENGINEERING Dec1 2008 : 1004- 7964(2008) 06- 0027- 05 2, 42D2/ / 黄丽, 叶群丽, 陈玉玲 , 朱仁庆, 王碧 ( 内江师范学院化学与生命科学学院, 四川 内江641112) :2, 42 ( 2, 42D) , , Span2 80 , , W/ O , 2 2, 42D2 / / , , Span2 80 , , , , : 1B 1B 1, 10 mL, Span2 80 2 mL, 11 5B 1, 30 min , , , 1B 20 , 781 3% , : ; ; ;2, 42 ;; : TS541 :A Preparation and Property of 2,42D/ Gelatin/ Chitosan/ Konjac Glucomannan Microspheres H UANG Li , YE Qun2li , CH EN Yu2ling , ZH U Ren2qing , WAN G Bi (Dep artment of C emistry and Lif e Science, N eij iang Teac ers College, N eij iang641112, C ina) Abstract:With 2, 42Dichlorophenoxyacetic Acid as matrix materials, liquid paraffin as continuous phase, Span280 as emulsifier, glutaradehyde as cr osslinking agent, the 2, 42D2gelatin2chitosan2 konjac glucomannan microspher es wer e Produced by an emulsion2crosslinking method, in the W/ O emulsion system. And sever al r eaction parameters were investigated in detail, including the r a2 tio gelatin, chitosan and konjac glucomannan, the dosage of glutaradehyde and Span280, the ratio of oil to water, emulsifying time, curing time, the speed and the size as well as the appearance of the micr ospheres, and the r ation between core and wall materials on the encapsulation efficiency. The r esults show when the mass ratio of gelatin, chitosan, konjac glucomannan equals to 1B 1B 1, the dosage of glutaradehyde is 10 mL, the mass ratio oil to water is equal to 11 5 B 1, emula2 ting time is 30 min, microspheres formed with smooth surface, reasonable size and better disper2 sivity. When the ration between core and