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现代化工  2020, Vol. 40 Issue (8): 150-153,157    DOI: 10.16606/j.cnki.issn0253-4320.2020.08.031
  科研与开发 本期目录 | 过刊浏览 | 高级检索 |
三种絮凝剂采收光合细菌的研究
何丹, 高建亮, 闫谨, 赵玉慧, 张迪, 才金玲
天津科技大学化工与材料学院, 天津市卤水化工与资源生态化利用重点实验室, 天津 300457
Photosynthetic bacteria collection by three flocculants
HE Dan, GAO Jian-liang, YAN Jin, ZHAO Yu-hui, ZHANG Di, CAI Jin-ling
Tianjin Key Laboratory for Brine Chemical Industry and Ecological Utilization of Brine Resource, College of Chemical Engineering and Materials Science, Tianjin University of Science and Technology, Tianjin 300457, China
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摘要 由于光合细菌体积小、培养液菌体密度低,导致菌体难以回收,极大地限制了光合细菌的产业化应用。研究了不同质量浓度的硫酸铝、氯化铁、壳聚糖絮凝采收光合细菌的效果。结果表明,3种絮凝剂均能高效回收光合细菌,其中氯化铁采收光合细菌的最适质量浓度为1.9 g/L,回收率高达(99.99±0.01)%;硫酸铝采收光合细菌的最适质量浓度为1.5 g/L,回收率为(98.24±0.01)%;壳聚糖的最适质量浓度为0.008 g/L,回收率为(84.20±0.02)%。3种絮凝剂均可高效回收光合细菌,其中壳聚糖由于用量低、无毒害,更适用于采收光合细菌。
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何丹
高建亮
闫谨
赵玉慧
张迪
才金玲
关键词:  光合细菌  采收  絮凝  壳聚糖  氯化铁  硫酸铝    
Abstract: Photosynthetic bacteria (PSB) are hard to be recovered due to their small size,lower density in culturing medium and high electronegativity,which hampers their commercial application.Flocculation has been widely used to recover microbiological biomass because of its low cost and high efficiency.Three flocculants,such as Al2(SO4)3,FeCl3,and chitosan,are used to recover PSB biomass.Results show that all three flocculants can efficiently recover PSB biomass.Among them,the optimum concentration of ferric chloride to collect photosynthetic bacteria is 1.9 g·L-1,by which the recovery rate of PSB biomass can reach as high as (99.99±0.01)%;the optimum concentration of aluminum sulfate is 1.5 g·L-1,which can bring about a recovery rate of (98.24±0.01)%;and the optimum concentration of chitosan is 0.008 g·L-1,by which the recovery rate is (84.20±0.02)%.Chitosan is more suitable for collecting photosynthetic bacteria because of its low dosage and non-toxic.
Key words:  photosynthetic bacteria    collecting    flocculation    chitosan    ferric chloride    aluminum sulfate
收稿日期:  2019-10-24      修回日期:  2020-06-13          
Q93  
基金资助: 天津市科学基金面上项目(17JCYBJC22900);天津科技大学大学生实验室创新基金项目(1803A203);天津市高等学校大学生创新训练计划项目(201910057148)
通讯作者:  才金玲(1976-),女,博士,副研究员,研究方向为生物活性物质的筛选与利用,通讯联系人,jinlingcai@tust.edu.cn。    E-mail:  jinlingcai@tust.edu.cn
作者简介:  何丹(1998-),女,本科生,研究方向为生物化工,he_danl@163.com
引用本文:    
何丹, 高建亮, 闫谨, 赵玉慧, 张迪, 才金玲. 三种絮凝剂采收光合细菌的研究[J]. 现代化工, 2020, 40(8): 150-153,157.
HE Dan, GAO Jian-liang, YAN Jin, ZHAO Yu-hui, ZHANG Di, CAI Jin-ling. Photosynthetic bacteria collection by three flocculants. Modern Chemical Industry, 2020, 40(8): 150-153,157.
链接本文:  
https://www.xdhg.com.cn/CN/10.16606/j.cnki.issn0253-4320.2020.08.031  或          https://www.xdhg.com.cn/CN/Y2020/V40/I8/150
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