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Position: Home > Articles > Antagonism of Toxicity of Ionic Chemical Toxicant to Microorganisms by Chitooligomer FOOD SCIENCE 2009,30 (9) 113-115

壳寡糖拮抗离子型化学毒物对微生物的毒性研究

作  者:
彭惠娥;覃彩芹;李伟
单  位:
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;孝感学院天然多糖研究室
关键词:
壳寡糖;离子型毒物;拮抗
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。
译  名:
Antagonism of Toxicity of Ionic Chemical Toxicant to Microorganisms by Chitooligomer
作  者:
PENG Hui-e1,QIN Cai-qin1,2,,LI Wei2 (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)
关键词:
chitooligomer;ionic toxicant;antagonism
摘  要:
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+), AsO43and fenaminosulf anions on the above three microorganisms in a concentration-dependent manner.

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