The semi-quantitative risk assessment of Listeria monocytogenes contamination in cooked meat products in bulk in Zhejiang Province / 预防医学

Objective@#To investigate the contamination status and assess the potential consumption risk of Listeria monocytogenes ( L. monocytogenes ) in cooked meat products in bulk in Zhejiang Province, so as to provide strategy for food safety supervision and management.@*Methods@#A total of 2 320 cooked meat products were sampled from eleven cities in Zhejiang Province during 2018-2020. The detection of L. monocytogenes was carried out in accordance with the national standard GB/T 4789.30-2016. Risk Ranger software was used for the semi-quantitative risk assessment on the whole population and pregnant women.@*Results@#The total detection rate of L. monocytogenes in cooked meat products in bulk in Zhejiang Province was 2.97% ( 69/2 320 ). The detection rates in stewed, smoked/roasted, fried, dried products and others were 3.85%, 1.81%, 0.59%, 0% and 0.94%, which were significantly different ( P<0.05 ). There were 28 positive samples in 1 069 samples collected in 2020, with the concentration ranging from 5 to 590 CFU/g and averaging 6.8 CFU/g. The estimated number of listeriosis cases each year caused by consumption of cooked meat products in bulk was 131 in the whole population with a risk score of 42, and 1.44 in pregnant women with a risk score of 54. The risk coefficient could reduce to approximate zero after sufficient heating before intake.@*Conclusion@#The prevalence of L. monocytogenes in cooked meat products in bulk in Zhejiang Province during 2018-2020 poses a potential risk in food safety. Pregnant women should avoid eating.

Ocorrência de coleópteros em alimentos industrializados para cães, comercializados na região metropolitana de Recife, PE / Occurrence of weevils (Insecta: Coleoptera) in pet food traded in the Metropolitan Region of Recife, Pernambuco State, Brazil

With the purpose of verifying the occurrence of insect pests in dog food commercialized in the Metropolitan Region of Recife, samples from 15 different pet stores were submitted to the extraction of insects in a Berlese-Tullgren apparatus. Tribolium castaneum (Herbst) (Tenebrionidae) (55.2 percent) was the most frequent specie followed by Oryzaephilus surinamensis (L.) (Cucujidae) (31.3 percent), Rhyzopertha dominica (Fabricius) (Bostrichidae) (8.9 percent) and Lasioderma serricorne (Fabricius) (Anobiidae) (4.7 percent), all from Coleoptera. Recife showed the highest rate of infestation (53.6 percent), followed by Olinda (34.4 percent) and Jaboatão dos Guararapes (12.0 percent). The infestation by coleopters in the region occurs with high frequency and may represent a threat mainly in commercialized products in bulk.

Objetivando verificar a ocorrência de insetos-praga em alimento industrializado para cães, comercializado na região metropolitana do Recife, amostras de 15 diferentes lojas agropecuárias foram submetidas à extração de insetos em funil de Berlese-Tullgren. Tribolium castaneum (Herbst) (Tenebrionidae) (55,2 por cento) foi o mais freqüente, seguido por Oryzaephilus surinamensis (L.) (Cucujidae) (31,3 por cento), Rhyzopertha dominica (Fabricius) (Bostrichidae) (8,9 por cento) e Lasioderma serricorne (Fabricius) (Anobiidae) (4,7 por cento), todos Coleoptera. Recife apresentou o maior índice de infestação (53,6 por cento), seguido por Olinda (34,4 por cento) e Jaboatão dos Guararapes (12,0 por cento). A infestação por coleópteros ocorre com elevada freqüência na região, podendo representar uma ameaça principalmente nos produtos comercializados a granel.