[1]于光,李云晖,姚琛,等.聚己内酯纳米纤维膜固定化溶藻菌对藻类和藻毒素的生物降解作用[J].东南大学学报(自然科学版),2008,38(3):483-487.[doi:10.3969/j.issn.1001-0505.2008.03.023]
 Yu Guang,Li Yunhui,Yao Chen,et al.Biological degradation of algae and microcystins by algicidal bacteria immobilized on nanofiber membrane of polycaprolactone[J].Journal of Southeast University (Natural Science Edition),2008,38(3):483-487.[doi:10.3969/j.issn.1001-0505.2008.03.023]
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聚己内酯纳米纤维膜固定化溶藻菌对藻类和藻毒素的生物降解作用()
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《东南大学学报(自然科学版)》[ISSN:1001-0505/CN:32-1178/N]

卷:
38
期数:
2008年第3期
页码:
483-487
栏目:
环境科学与工程
出版日期:
2008-05-20

文章信息/Info

Title:
Biological degradation of algae and microcystins by algicidal bacteria immobilized on nanofiber membrane of polycaprolactone
作者:
于光1 李云晖1 姚琛2 尹立红1 李新松2 浦跃朴1
1 东南大学公共卫生学院, 南京 210009; 2 东南大学化学化工学院, 南京 210096
Author(s):
Yu Guang1 Li Yunhui1 Yao Chen2 Yin Lihong1 Li Xinsong2 Pu Yuepu1
1 School of Public Health, Southeast University, Nanjing 210009, China
2 School of Chemistry and Chemical Engineering, Southeast University, Nanjing 210096, China
关键词:
溶藻菌 人工介质 固定化 生物降解 微囊藻毒素LR
Keywords:
algicidal bacteria artificial medium immobilization biological degradation microcystins-LR
分类号:
X172
DOI:
10.3969/j.issn.1001-0505.2008.03.023
摘要:
采用电纺法制备并表征了聚己内酯纳米纤维膜(NMP).将从太湖水体中分离到的假单胞菌属溶藻菌固定化在聚己内酯纳米纤维膜(NMP)、维纶(VNL)和阿科蔓(AQUA)等人工介质材料上,分析与比较不同人工介质固定化溶藻菌对太湖土著铜绿微囊藻和微囊藻毒素LR(MC-LR)的生物降解作用.实验结果显示:NMP吸水率、孔隙率、拉伸强度分别为(81.33±1.58)%、(78.68±4.85)%、(89.8±7.5)MPa.NMP固定化溶藻菌的数量为5.65×107/cm2; NMP固定化溶藻菌对藻细胞的48 h溶藻率和对MC-LR的48 h降解率分别为85.68%和60.16%; 溶解藻细胞可重复利用次数达到4次.上述结果表明,NMP是一种良好的固定化溶藻菌的纳米人工介质,可以增强溶藻菌对铜绿微囊藻和MC-LR的生物降解作用.
Abstract:
Nanofiber membrane of polycaprolactone was prepared by electrospinning and then characterized. The algicidal bacteria of pseudomonas strain isolated from Taihu Lake were then immobilized on three kind of artificial media of NMP(nanofiber membrane polycaprolactone, AQUA(Aquamats)and VNL(Vinlon), respectively. The algae-lytic and microcystin-degradative effects of the immobilized algicidal bacteria were detected and evaluated. The results show that the ratio of water absorptivity, the porosity and the tensile strength of the NMP are(81.33±1.58)%,(78.68±4.85)%,(89.8±7.5)MPa, respectively. The bacteria concentration of 30 h after immobilization on NMP is 5.65×107/cm2. The 48 h algicidal ratio and microcystin-degradative ratio of NMP immobilized algicidal bacteria are 85.68%,60.16% respectively. The utilization of the NMP immobilized algicidal bacteria can be repeated for up to 4 times. NMP is a suitable material for bacteria immobilization by which the effects of immobilized algicidal bacteria on biological degradation of algae and microcystin LR can be improved.

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备注/Memo

备注/Memo:
作者简介: 于光(1982—),男,硕士生; 浦跃朴(联系人), 男,博士,教授,博士生导师,yppu@seu.edu.cn.
基金项目: 江苏省自然科学基金资助项目(BK2005068)、教育部博士点专项科研基金资助项目(20050286035)、国家重点基础研究发展计划(973计划)资助项目(2006CB705602)、 江苏省“333工程”科研资助项目(苏人才办[2007]16号).
引文格式: 聚己内酯纳米纤维膜固定化溶藻菌对藻类和藻毒素的生物降解作用于光,李云晖,姚琛,等.[J].东南大学学报:自然科学版,2008,38(3):483-487.
更新日期/Last Update: 2008-05-20