固定化青霉菌脱色亚甲基蓝  

Decolorization of methylene blue by immobilized Penicillium

作　　者：刘江红[1] 苏会敏 薛健 LIU Jianghong;SU Huimin;XUE Jian(College of Chemistry and Chemical Engineering,Northeast Petroleum Universily,Daqing 163318,China;Heilongjiang Academy of Environmental Sciences,Harbin 150076,China;Harbin Zeneng Environmental Technology,Ltd.,Harbin 150000,China)

机构地区：[1]东北石油大学化学化工学院,黑龙江大庆163318 [2]黑龙江省环境科学研究院,黑龙江哈尔滨150076 [3]哈尔滨泽能环保科技有限公司,黑龙江哈尔滨150000

出　　处：《化工科技》2022年第4期38-42,共5页Science & Technology in Chemical Industry

基　　金：黑龙江省自然科学基金项目(E2018014).

摘　　要：研究大豆分离蛋白和海藻酸钠微胶囊固定化青霉菌实验,确定最佳条件为m(大豆分离蛋白)∶m(海藻酸钠微胶囊)=1∶1,pH=3。在扫描电镜下观察,发现该微胶囊具有疏松多孔结构。单一的固定化材料大豆分离蛋白和海藻酸钠对亚甲基蓝的脱色效率分别为4.01%和1.71%(24 h),而包裹青霉菌的大豆分离蛋白-海藻酸钠微胶囊样品,24 h后亚甲基蓝的脱色效率为94.21%,合成后的微胶囊结构对亚甲基蓝具有吸附作用。考察探究大豆分离蛋白微胶囊固定化青霉菌在不同的环境条件下脱色亚甲基蓝的脱色效率,青霉菌经过固定化后,抵抗强酸、强碱和高浓度亚甲基蓝浓度的能力较强。The immobilization of Penicillium spp.with soybean protein isolate and sodium alginate microcapsules was studied.The optimum conditions were determined as follows: m(soybean protein isolate)∶m(sodium alginate microcapsules)=1∶1,pH=3.Under scanning electron microscope, it was found that the microcapsule had loose and porous structure.The decolorization efficiencies of soybean protein isolate and sodium alginate for methylene blue were 4.01% and 1.71%,respectively, while the decolorization efficiency of soybean protein isolate sodium alginate microcapsule wrapped with Penicillium was 94.21% after 24 hours.It can be seen that the synthesized microcapsule structure has adsorption ability on methylene blue.The decolorization efficiency of soybean protein isolate microcapsule immobilized Penicillium under different environmental conditions was investigated.It was found that the ability of Penicillium to resist strong acid, strong alkali and high concentration of methylene blue was improved after immobilization.

关 键 词：大豆分离蛋白 海藻酸钠 亚甲基蓝 青霉菌 脱色 

分 类 号：X522[环境科学与工程—环境工程]