FOOD SCIENCE ›› 2009, Vol. 30 ›› Issue (9): 113-115.doi: 10.7506/spkx1002-6630-200909026

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Antagonism of Toxicity of Ionic Chemical Toxicant to Microorganisms by Chitooligomer

PENG Hui-e1 QIN Cai-qin1,2,* LI Wei2   

  1. 1. Laboratory of Natural Polysaccharides, Xiaogan University, Xiaogan 432000, China 2. Key Laboratory of Biomass-Resource
    Chemistry and Environmental Biotechnology of Hubei, Wuhan University, Wuhan 430072, China
  • Received:2008-07-16 Revised:2008-12-06 Online:2009-05-01 Published:2010-12-29
  • Contact: QIN Cai-Qin E-mail:qincq@sohu.com

Abstract:

In the presence of chitooligomers (COs), effect of and ionic toxicants on the growth and metabolism of Escherichia coli, Staphylococcus aureus and yeast were investigated using microcalorimetry and turbidity methods. Results indicated that COs could antagonize the toxicity caused by heavy metal cations (Hg2+, Pb2+ and Cd2+), AsO43- and fenaminosulf anions on the above three microorganisms in a concentration-dependent manner.

Key words: chitooligomer, ionic toxicant, antagonism

CLC Number: