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Outline
To understand the contamination status of Listeria monocytogenes in meat and meat products in Jiangsu Province.
From 2015 to 2024, a total of 5705 different types of meat and meat products were collected from multiple links including agricultural product markets, supermarkets and restaurants in 13 prefecture-level cities in Jiangsu Province to detect Listeria monocytogenes according to the protocol of National food contamination and hazardous factors risk monitoring. The results were statistically analyzed by SPSS 27.0 software.
Among the 5705 samples, 328 were tested positive for Listeria monocytogenes, with an overall detection rate of 5.7%. The detection rate of raw meat and its products was significantly higher than that of cooked meat and its products (χ2=91.717, P<0.001). There were significant differences in the detection rates among pork,beef, chicken and duck samples (χ2=11.510, P=0.009). Besides, there were significant differences in the detection rates among fresh meat, chilled meat and frozen meat samples (χ2=89.652, P<0.001). The detection rate of samples from the circulation link was significantly higher than that of the catering link (χ2=10.388, P=0.001). There were significant differences in the detection rate of Listeria monocytogenes among samples collected from agricultural product markets, supermarkets, and online stores (χ2=6.038, P=0.049).
Contamination with Listeria monocytogenes continues to exist in meat and meat products in different regions of Jiangsu Province, which has potential risks. Surveillance and regulation should be enhanced to prevent the occurrence of related foodborne diseases.
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| 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 |
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