Objective To investigate the microbial contamination in frozen drinks sold in Taicang City from 2022 to 2024. Methods A total of 118 samples of frozen drinks sold in Taicang City were collected from 2022 to 2024, inspected and judged according to GB 2759—2015 National food safety standard-Frozen drinks and ingredients. Results One sample had an excessive total bacterial count, and 4 samples had an excessive coliform group, with failure rates of 0.85% and 3.39%, respectively; the 72.88% (86/118) of the samples had a measured total bacterial count of greater than or equal 5 CFU/g, and 6.78% (8/118) of the samples had a measured coliform bacterial count of greater than or equal 5 CFU/g; Staphylococcus aureus, Salmonella and Listeria monocytogenes were not detected in the sample. Conclusion From 2022 to 2024, the hygiene quality of frozen drinks sold in Taicang City is relatively good. It is recommended that regulatory authorities continue to conduct hygiene supervision on frozen drinks production enterprises. Enterprises continue to strengthen hygiene management, control production, transportation and storage processes, to ensure the hygiene quality of frozen drinks.
| 科 Family | 属数 Number of genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) | 属 Genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) |
|---|---|---|---|---|---|---|
| 鹅膏菌科Amanitaceae | 2 | 11 | 5.26 | 鹅膏菌属 Amanita | 10 | 4.78 |
| 小菇科 Mycenaceae | 2 | 12 | 5.74 | 丝盖伞属 Inocybe | 5 | 2.39 |
| 多孔菌科 Polyporaceae | 8 | 14 | 6.70 | 蜡蘑属 Laccaria | 5 | 2.39 |
| 红菇科 Russulaceae | 3 | 23 | 11.00 | 小皮伞属 Marasmius | 6 | 2.87 |
| 小菇属 Mycena | 11 | 5.26 | ||||
| 光柄菇属 Pluteus | 5 | 2.39 | ||||
| 红菇属 Russula | 17 | 8.13 | ||||
| 栓菌属 Trametes | 5 | 2.39 |