2022—2024年湖南省包装饮用水铜绿假单胞菌污染特征分析与防控策略研究

Analysis of pollution characteristics and prevention and control strategies of Pseudomonas aeruginosa in packaged drinking water in Hunan Province from 2022 to 2024

中文关键词:  铜绿假单胞菌  包装饮用水  污染  污染特征  防控策略

英文关键词:Pseudomonas aeruginosa  packaged drinking water  pollution characteristics  prevention and control strategies

中文摘要:

      目的 探究包装饮用水中铜绿假单胞菌的污染特征。方法 对2022——2024年度湖南省监督抽检中, 省内市售、本省企业生产的包装饮用水检出铜绿假单胞菌的情况进行分析。结果 3年铜绿假单胞菌检出率为8.15%, 2024年因监管强化显著下降至5.74%; 其他饮用水(9.44%)与压盖包装(8.65%)风险最高; 夏秋季(3季度11.34%)及常德、湘西等地区(大于15%)为污染高发区。结论 重点加强水源细菌保护膜防控、季节性工艺优化及高风险区域监管, 可以有效减少铜绿假单胞菌的污染, 从而提高包装饮用水产品的抽检合格率。研究结果为湖南省包装饮用水质量安全提供了关键数据支撑, 所揭示的“气候-工艺-管理”多重风险叠加机制, 对南方湿热地区食品微生物防控具有实践指导意义。

英文摘要:

      Objective To explore the pollution characteristics of Pseudomonas aeruginosa in packaged drinking water. Methods The detection of Pseudomonas aeruginosa in packaged drinking water sold in the province and produced by local enterprises during the supervision and sampling of Hunan Province from 2022 to 2024 was analyzed. Results The detection rate of Pseudomonas aeruginosa in 3 years was 8.15%, which significantly decreased to 5.74% in 2024 due to strengthened supervision. Other drinking water (9.44%) and sealed packaging (8.65%) had the highest risk. Summer and autumn (11.34% in the third quarter) and areas such as Changde and Xiangxi (over 15%) were high-risk areas for pollution. Conclusion Focusing on strengthening the prevention and control of bacterial protective films in water sources, optimizing seasonal processes and regulating high-risk areas can effectively reduce the pollution of Pseudomonas aeruginosa, thereby improving the sampling pass rate of packaged drinking water products. The research results provide key data support for the quality and safety of packaged drinking water in Hunan Province. The multiple risk superposition mechanism of “climate process management” revealed has practical guidance significance for the prevention and control of food microorganisms in humid and hot regions of Southern China.