饮用天然矿泉水水源霉菌菌相分析

目的 掌握饮用天然矿泉水水源霉菌污染现状。方法 对69个灌装厂有的73处饮用天然矿泉水水源采样调查。结果 在73件水源样品中45份（61.64%）检出霉菌982株。半知菌类发现频率最高，藻状菌纲，子囊菌纲、担子菌纲较少见。检出的18个霉菌属中，曲霉（50.41%) 、枝孢霉（33.81%）占较大优势，青霉、木霉、镰刀菌等属也较常见。霉菌检出与水源菌落总数、大肠菌群、亚硝酸盐等指标的相关性无显著意义。结论 饮用天然矿泉水水源的霉菌主要来源于开采后的外界污染。

Mycoflora in Natural Mineral Water Sources for Drinking

Objective To understand the pollution of fungi in natural mineral water sources for drinking. Methods Sampling was carried out in 73 natural mineral water sources supplying water for 69 manufactories of bottled mineral water for drinking. Results 982 strains of fungi were found in 45 water samples (61.64%) of the total 73 water samples. Fungi imperfect! revealed the highest detected rates. Phycomycetea, Ascomycetes, Basidiomycetes were all detected, but less frequently. Among 18 detected fungal genera, Aspergillus and Cladosporium were all the dominant genera, as well as Penicilliurn, Trichoderma and Fusarium were commonly detectable genera. No correlations were observed between the detected rates of fungus and total count of bacteria, total coliform, the concentrations of nitrite in source water. Conclusion The extragenous fungal contamination in the process of post-extraction might be the main factor resulting in the pollution of fungi in natural mineral water source.