首页|水环境温度对戊二醛杀菌效果的影响

水环境温度对戊二醛杀菌效果的影响

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为了解水环境温度对戊二醛(glutaraldehyde,GA)杀菌效果的影响,在20℃、25℃和30℃三个温度条件下,定期检测了 2株细菌(副溶血弧菌Vibrio parahaemolyticus、维氏气单胞菌Aeromonas veroni)在不同浓度戊二醛水溶液中的致死情况.检测结果显示,戊二醛对维氏气单胞菌的杀菌率与温度正相关,低药物浓度时(0.45 mg/L),30℃水体中的杀菌率在24 h达到90％以上,而较低温度(20℃)实现90％杀菌率需要27 h;当浓度升至1.8 mg/L时,30℃、5 h杀菌率可以达到90％,20℃时则需要延长至7 h;当更高药物浓度(18 mg/L)时,30℃、20 min可实现90％以上杀菌率,20℃时所需时间相应延长至30 min.戊二醛对副溶血弧菌灭菌效果的影响也呈现相似规律性,当药物浓度0.18 mg/L时,杀菌率分别在15 h(30℃)和18h(20℃)达到90％以上;当药物浓度1.8 mg/L和18 mg/L时,30℃水体中分别于100 min和3 min达到90％以上的杀菌率;20℃时时间延长至180 min和5 min.该研究结果可为科学合理使用戊二醛提供参考.
Effect of water ambient temperature on the bactericidal of glutaraldehyde
In order to research the effect of water ambient temperature on the bactericidal rate(BR)of glutaralde-hyde(GA),Vibrio parahaemolyticus and Aeromonas veronii were regularly tested for mortality under three tempera-ture conditions of 20℃,25℃,and 30℃.The results showed that:For Aeromonas veronii,the bactericidal rate was positively correlated with temperature.At low drug concentrations(0.45 mg/L),the BR reached over 90％at 30℃ for 24 hours,while at low temperatures(20℃),it took 27 hours.As for drug concentrations of 1.8 mg/L,at 30℃,the BR reached 90％in 5 hours,while at 20℃,it extended to 7 hours.At higher drug concentrations(18 mg/L),it took 20 minute which the BR reached over 90％at 30℃.The time was correspondingly extended to 30 minutes when the temperature drops to 20℃.For Vibrio parahaemolyticus,a similar rule was observed.The BR reached over 90％at 15 hours(30℃)and 18 hours(20℃)when the concentration was 0.18 mg/L.At the con-centrations of 1.8 mg/L and 18 mg/L,it took 100 minutes and 3 minutes that the BR reached over 90％at 30℃.When the temperature reduced to 20℃,the time was correspondingly extended to more than 180 minutes and 5 mi-nutes.This research results provide reference for the scientific and rational use of glutaraldehyde.

TemperatureGlutaraldehydeAeromonas veroniiVibrio parahaemolyticusBactericidal rate(BR)

刘宏宇、杨广

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天津农学院水产学院,天津市水产生态及养殖重点实验室,天津 300384

温度 戊二醛(glutaraldehyde,GA) 维氏气单胞菌(Aeromonas veroni) 副溶血弧菌(Vibrio Parahaemo-lyticus) 杀菌率

天津市淡水养殖产业技术体系创新团队营养需求与饲料岗位项目天津市技术体系创新团队项目

ITTFRS2021000-011ITTFRS2021000-011

2024

黑龙江水产
黑龙江省渔业经济研究所　黑龙江省渔业协会

黑龙江水产

影响因子：0.13
ISSN：1674-2419
年,卷(期)：2024.43(2)
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