淡江大學機構典藏:Item 987654321/97977
English  |  正體中文  |  简体中文  |  Items with full text/Total items : 62822/95882 (66%)
Visitors : 4021831      Online Users : 1164
RC Version 7.0 © Powered By DSPACE, MIT. Enhanced by NTU Library & TKU Library IR team.
Scope Tips:
  • please add "double quotation mark" for query phrases to get precise results
  • please goto advance search for comprehansive author search
    •  Adv. Search
    Home ‧ Login ‧ Upload ‧ Help ‧ About ‧ Administer Goto mobile version


    Please use this identifier to cite or link to this item: https://tkuir.lib.tku.edu.tw/dspace/handle/987654321/97977


    Title: Exopolysaccharides and Antimicrobial Biosurfactants Produced by Paenibacillus macerans TKU029
    Authors: Liang, Tzu-Wen;Wu, Chia-Chen;Cheng, Wei-Ting;Chen, Yu-Chi;Wang, Chuan-Lu;Wang, I-Li;Wang, San-Lang
    Contributors: 淡江大學化學學系
    Keywords: Paenibacillus macerans;Exopolysaccharides;Biosurfactant;Antimicrobial activity;Skin hydration;Squid pen
    Date: 2014-01-01
    Issue Date: 2014-05-15 14:52:50 (UTC+8)
    Publisher: Totowa: Humana Press, Inc.
    Abstract: Paenibacillus macerans TKU029 can produce exopolysaccharides (EPSs; 3.46 g/L) and a biosurfactant (1.78 g/L) in a medium with 2 % (w/v) squid pen powder as the sole carbon/nitrogen source. The biosurfactant can reduce the surface tension of water from 72.30 to 35.34 mN/m at a concentration of 2.76 g/L and reach an emulsification index of 56 % after a 24-h reaction with machine oil. This biosurfactant is stable at 121 °C for 20 min, over a pH range from 3 to 11, and in <5 % salt solutions. It also shows significant antimicrobial activity, which remains active after treatment at 121 °C and at pH values from 4 to 10, against Escherichia coli BCRC13086, Staphylococcus aureus BCRC10780, Fusarium oxysporum BCRC32121 and Aspergillus fumigatus BCRC30099. Furthermore, human skin shows from 37.3 to 44.3 % hydration after being treated with TKU029 EPSs for 180 min. These results imply that EPSs and the biosurfactant from this strain have potential in cosmetics, for removal of oil contamination, and as antimicrobial agents.
    Relation: Applied Biochemistry and Biotechnology 172(2), pp.933-950
    DOI: 10.1007/s12010-013-0568-5
    Appears in Collections:[Graduate Institute & Department of Chemistry] Journal Article

    Files in This Item:

    File Description SizeFormat
    Exopolysaccharides and Antimicrobial Biosurfactants Produced by Paenibacillus macerans TKU029.pdf714KbAdobe PDF2View/Open
    index.html0KbHTML309View/Open

    All items in 機構典藏 are protected by copyright, with all rights reserved.

    DSpace Software Copyright © 2002-2004  MIT &  Hewlett-Packard  /   Enhanced by   NTU Library & TKU Library IR teams. Copyright ©   - Feedback