低温原液对细菌生长的影响。

IF 0.9 4区 农林科学 Q4 BIOTECHNOLOGY & APPLIED MICROBIOLOGY Biocontrol science Pub Date : 2022-01-01 DOI:10.4265/bio.27.163
Mitsuyo Kita, Jun Usukura
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引用次数: 0

摘要

了解适宜的细菌培养温度和贮存温度,进行高精度的保鲜效果试验是必要的。在这项研究中,我们研究了培养物或砧木内的温度条件是否会影响大肠杆菌、金黄色葡萄球菌和铜绿假单胞菌的生存能力或生长活性。我们发现冷贮藏条件对铜绿假单胞菌的存活能力有影响,但对大肠杆菌和金黄色葡萄球菌的存活能力没有影响。饲养温度对大肠杆菌、铜绿假单胞菌和金黄色葡萄球菌的生长活性均有影响,且对铜绿假单胞菌的影响大于对其他三种菌的影响。然而,对铜绿假单胞菌的减弱作用在饲养后的新鲜培养基中培养长达6周后被逆转。综上所述,放养期间的冷胁迫可能影响铜绿假单胞菌的生长活性。本研究结果为化妆品中防腐剂功效的准确评价提供了依据。
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Effect of Low-temperature Stock on the Growth of Bacteria.

It is necessary to know the appropriate bacterial culture temperature and stock temperature to carry out high-precision preservative efficacy tests. In this study, we investigated whether the temperature conditions within the culture or stock affect the survivability or growth activity of Escherichia coli, Staphylococcus aureus, and Pseudomonas aeruginosa. We found that the cold stocking condition affected the survivability of P. aeruginosa, but not that of E. coli and S. aureus. Furthermore, stocking temperature affects the growth activity of E. coli, P. aeruginosa and S. aureus, and the effect on P. aeruginosa was greater than that on the others. However, the attenuating effect on P. aeruginosa was reversed by culturing into fresh medium for up to six weeks after stocking. These results suggest that cold stress during stocking may affect the growth activity of P. aeruginosa. The results of this study should provide knowledge for the precise evaluation of preservative efficacy in cosmetics.

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来源期刊
Biocontrol science
Biocontrol science BIOTECHNOLOGY & APPLIED MICROBIOLOGY-
CiteScore
2.60
自引率
8.30%
发文量
21
审稿时长
>12 weeks
期刊介绍: The Biocontrol Science provides a medium for the publication of original articles, concise notes, and review articles on all aspects of science and technology of biocontrol.
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