氯化钠和柠檬酸对温和气单胞菌和河弧菌在中低温下生长及毒素产生的影响。

Effect of sodium chloride and citric acid on growth and toxin production by A. caviae and A. sobria at moderate and low temperatures.

作者信息

Abu-Ghazaleh B M

机构信息

Department of Biology, Hashemite University, Zarqa, Jordan.

出版信息

New Microbiol. 2000 Oct;23(4):433-40.

PMID:11061632

Abstract

The effect of sodium chloride and citric acid on hemolysin and caseinase production by Aeromonas caviae and Aeromonas sobria at 32 degrees C and 5 degrees C was investigated. At 32 degrees C, although both strains were tolerant to 3% NaCl in TSB, the production of caseinase was decreased in the presence of 1-3% NaCl, and the production of hemolysin was abolished by 2-3% NaCl. Citric acid (0.03%) was less effective than NaCl in reducing hemolysin and caseinase production by both strains at 32 degrees C. A combination of low temperature (5 degrees C) and citric acid treatment reduced hemolysin and caseinase production by both strains. A combination of low temperature (5 degrees C) and NaCl (3%) treatment was the most effective procedure in reducing growth and hemolysin and caseinase production by the tested strains.

摘要

研究了氯化钠和柠檬酸对豚鼠气单胞菌和温和气单胞菌在32℃和5℃条件下溶血素和酪蛋白酶产生的影响。在32℃时，尽管两株菌在胰酪大豆胨肉汤（TSB）中都能耐受3%的氯化钠，但在1%-3%氯化钠存在的情况下，酪蛋白酶的产生减少，2%-3%氯化钠可消除溶血素的产生。在32℃时，柠檬酸（0.03%）在减少两株菌溶血素和酪蛋白酶产生方面不如氯化钠有效。低温（5℃）和柠檬酸处理相结合可减少两株菌溶血素和酪蛋白酶的产生。低温（5℃）和氯化钠（3%）处理相结合是减少受试菌株生长、溶血素和酪蛋白酶产生的最有效方法。