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1.
J Food Prot ; 86(1): 100034, 2023 01.
Article in English | MEDLINE | ID: mdl-36916590

ABSTRACT

Pig production is relevant to the Brazilian economy. Different stages of the raising and slaughtering process influence the microbiological quality of pig products and by-products. Microbiological analysis and hazard analysis and critical control points (HACCPs) are tools for monitoring microbiological quality indicator microorganisms. The construction of predictive models can assist the process of monitoring the microbiological quality of pig products. This study aimed to map the slaughter stages and develop a model to predict the absence or presence of Salmonella based on the process variables (distance from the farm to the slaughterhouse and aerobic mesophilic) and analyze their influence on contamination indicator microorganisms. A total of 810 samples were collected at nine stages of the slaughter process (bleeding, scalding, dehairing, singeing, washing, evisceration, inspection, final washing, and chilling). The binary class predictive model was used as a microbiological quality predictor at the slaughter stages. Salmonella was identified at all process stages, with lower contamination levels at the scalding and chilling stages, whereas the highest levels were found at the dehairing and bleeding stages. The predictive model revealed an accuracy of about 85% for Salmonella being a tool to monitor the microbiological quality of pig slaughter.


Subject(s)
Food Contamination , Food Handling , Swine , Animals , Food Contamination/analysis , Prevalence , Salmonella , Hygiene , Abattoirs , Food Microbiology , Meat/microbiology , Colony Count, Microbial
2.
Hig. aliment ; 33(288/289): 2687-2691, abr.-maio 2019. tab
Article in Portuguese | LILACS, VETINDEX | ID: biblio-1482317

ABSTRACT

A atividade antifúngica in vitro e in vivo do carvacrol disperso no revestimentos comestíveis foi avaliada contra o Colletotrichum sp.. Na elaboração do revestimento foi utilizado amido de mandioca e gelatina. A concentração de carvacrol variou de 0-0,6 g.mL-1 de solução filmogênica. O revestimento ativo mostrou-se um ótimo antifúngico no controle da proliferação do Colletotrichum sp. com concentração inibitória mínima (CIM) para o carvacrol de 3,51 μg.mL-1. O revestimento de 0,3 mg carvacrol. g-1 solução inibiu a proliferação do Colletotrichum sp. nas análises antimicrobianas in vivo realizadas em morangos. Os revestimentos ativos foram capazes de inibir o aparecimento da doença fúngica antracnose em 80 a 90 % dos morangos com dois dias de incubação de Colletotrichum sp..


Subject(s)
Antifungal Agents , Biopolymers/analysis , Colletotrichum , Food Packaging , Fragaria , Food Microbiology , Monoterpenes
3.
Hig. aliment ; 33(288/289): 2774-2778, abr.-maio 2019. tab
Article in Portuguese | LILACS, VETINDEX | ID: biblio-1482335

ABSTRACT

O objetivo deste trabalho foi determinar a atividade antimicrobiana do carvacrol e sua combinação com tiabendazol no controle de fungos patogênicos deteriorantes de frutas (Colletotrichum gloesporioides, Fusarium solani e Alternaria alternata). O carvacrol apresentou uma concentração inibitória mínima (CIM) de 282 a 563 μg mL-1 para os fungos testados. Quando avaliado em conjunto com o tiabendazol apresentou efeito aditivo contra C. gloesporioides e F. solani (FICI 0,5 e 1,0, respectivamente) e sinérgico contra a A.alternata (FICI 0,1). Houve redução da CIM do carvacrol de 50 a 88%. Este estudo mostra o potencial do uso.


Subject(s)
Alternaria/drug effects , Colletotrichum/drug effects , Fungicides, Industrial/administration & dosage , Fungicides, Industrial/analysis , Fungi/drug effects , Fusarium/drug effects , Food Microbiology , Thiabendazole/administration & dosage , Drug Synergism
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