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

• 生物工程 • 上一篇    下一篇

壳寡糖拮抗离子型化学毒物对微生物的毒性研究

彭惠娥1,覃彩芹1,2,*,李 伟2   

  1. 1.孝感学院天然多糖研究室 2. 武汉大学 生物质资源化学与环境生物技术湖北省重点实验室
  • 收稿日期:2008-07-16 修回日期:2008-12-06 出版日期:2009-05-01 发布日期:2010-12-29
  • 通讯作者: 覃彩芹 E-mail:qincq@sohu.com

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

摘要:

以大肠杆菌、金黄色葡萄球菌和酵母菌为实验菌种,采用微量热法和浊度法,分别探讨了离子型化学毒物Hg2+、Pb2+和Cd2+等重金属阳离子,以及AsO43-和农药敌克松等阴离子在壳寡糖存在下对微生物生长的影响。结果表明,壳寡糖能拮抗这些毒物对微生物的毒性,且这种作用随着壳寡糖浓度的增大而增强。

关键词: 壳寡糖, 离子型毒物, 拮抗

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

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