Enhanced extraction of extracellular polymeric substances from biofilms by alternating current

被引：5
|
作者：
Li, XG [1 ]
Cao, HB [1 ]
Wu, JC [1 ]
Zhong, FL [1 ]
Yu, KT [1 ]
机构：
[1] Tianjin Univ, Sch Chem Engn & Technol, Chem Engn Res Ctr, Tianjin 300072, Peoples R China
来源：
BIOTECHNOLOGY LETTERS | 2002年 / 24卷 / 08期
基金：
中国国家自然科学基金;
关键词：
alternating current; biofilm; extracellular polymeric substance; extraction;
D O I：
10.1023/A:1015031021858
中图分类号：
Q81 [生物工程学（生物技术）]; Q93 [微生物学];
学科分类号：
071005 ; 0836 ; 090102 ; 100705 ;
摘要：
The extraction of extracellular polymeric substances (EPS) including polysaccharides and proteins from aerobic biofilms using either EDTA or NaOH was enhanced by alternating current especially within the first 0.5 h of current application. At 60 mA and 50 Hz, the average extraction rate of polysaccharides within the first 0.5 h using EDTA was 8.3 mg h(-1) g TS-1 (TS: total solid, dry wt), 1.6 times of that without current, and that of proteins was 2.5 mg h(-)1 g TS-1, 1.2 times higher. The extraction of polysaccharides was maximal at around 500 Hz while that of proteins was less affected by increasing the current frequency.
引用
收藏
页码：619 / 621
页数：3
相关论文
共 50 条
  • [41] The effect of flow velocity on the distribution and composition of extracellular polymeric substances in biofilms and the detachment mechanism of biofilms
    Wang, Chao
    Miao, Lingzhan
    Hou, Jun
    Wang, Peifang
    Qian, Jin
    Dai, Shanshan
    WATER SCIENCE AND TECHNOLOGY, 2014, 69 (04) : 825 - 832
  • [42] Differential Protection from Tobramycin by Extracellular Polymeric Substances from Acinetobacter baumannii and Staphylococcus aureus Biofilms
    Davenport, Emily K.
    Call, Douglas R.
    Beyenal, Haluk
    ANTIMICROBIAL AGENTS AND CHEMOTHERAPY, 2014, 58 (08) : 4755 - 4761
  • [43] Chemical composition and Cu complexation characteristics of the extracellular polymeric substances from pseudomonas aeruginosa biofilms
    Chang, SI
    Gray, KA
    ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY, 2003, 225 : U799 - U799
  • [44] Extraction of extracellular polymeric substances in activated sludge using sequential extraction
    Sun, LianPeng
    Chen, Lili
    Guo, Wu Zhen
    Ye, Tingjin
    Yang, Ying
    JOURNAL OF CHEMICAL TECHNOLOGY AND BIOTECHNOLOGY, 2015, 90 (08) : 1448 - 1454
  • [45] Extraction of extracellular polymeric substances from activated sludge using sodium oxalate
    M. Sajjad
    K. S. Kim
    International Journal of Environmental Science and Technology, 2016, 13 : 1697 - 1706
  • [46] Extraction of extracellular polymeric substances (EPS) from four kinds of activated sludge
    Ge, Liyun
    Wang, Hongwu
    Ma, Luming
    Deng, Huanhuan
    FRESENIUS ENVIRONMENTAL BULLETIN, 2006, 15 (10): : 1252 - 1255
  • [47] Comparison of Seven Extraction Methods for Extracellular Polymeric Substances from Acidithiobacillus ferrooxidans
    Yu Yanyun
    Wan Zhengqiang
    Peng Shuchuan
    Jin Jie
    PROCEEDINGS OF THE 4TH INTERNATIONAL CONFERENCE ON ENVIRONMENTAL TECHNOLOGY AND KNOWLEDGE TRANSFER, 2012, : 714 - 717
  • [48] Extraction of extracellular polymeric substances from activated sludge using sodium oxalate
    Sajjad, M.
    Kim, K. S.
    INTERNATIONAL JOURNAL OF ENVIRONMENTAL SCIENCE AND TECHNOLOGY, 2016, 13 (07) : 1697 - 1706
  • [49] Extraction of extracellular polymeric substances from aerobic granule with compact interior structure
    Adav, Sunil S.
    Lee, Duu-Jong
    JOURNAL OF HAZARDOUS MATERIALS, 2008, 154 (1-3) : 1120 - 1126
  • [50] Layered Extraction and Adsorption Performance of Extracellular Polymeric Substances from Activated Sludge in the Enhanced Biological Phosphorus Removal Process
    Li, Daxue
    Xi, Hailing
    MOLECULES, 2019, 24 (18):
12345