[PMID]: | 28561638 |
[Au] Autor: | Huss AR; Fuller JC; Centrella W; Marshall DL; Deliephan A; Jones CK |
[Ad] Endereço: | 1 Grain Science and Industry, Kansas State University, 201 Shellenberger Hall, Manhattan, Kansas 66506. |
[Ti] Título: | Mitigation of Salmonella on Pet Food Kibbles by Using Liquid and Powdered 3-Hydroxy-3-Methylbutyric Acid. |
[So] Source: | J Food Prot;80(7):1080-1084, 2017 Jul. |
[Is] ISSN: | 1944-9097 |
[Cp] País de publicação: | United States |
[La] Idioma: | eng |
[Ab] Resumo: | In recent years, several pet food recalls have been attributed to Salmonella contamination. In addition to the negative impacts on animal health, Salmonella-contaminated pet foods have been linked to infection in humans. With that in mind, the U.S. Food and Drug Administration has set forth a zero-tolerance policy for Salmonella in pet foods. Typically, pet foods are extruded or processed at high temperatures that are sufficient to reduce pathogenic bacteria. However, the possibility for postextrusion contamination still exists. One potential method to reduce the risk of postextrusion contamination of pet foods with Salmonella is through the addition of a chemical additive coating. The objective of this research was to evaluate the ability of ß-hydroxy-ß-methylbutyrate (HMB), in either free acid (HMBFA) or calcium salt (CaHMB) form, to reduce postextrusion contamination of dry extruded dog kibble with Salmonella. Three trials were conducted with HMBFA and CaHMB coated onto the kibbles at levels of 0, 0.1, 0.3, 0.5, 0.9, and 1.5% (w/w). The coated kibbles were then inoculated with Salmonella enterica subsp. enterica Enteritidis (ATCC 13076), with enumeration done on days 0, 1, 2, 7, and 14 postinoculation. Subsamples on each day were serially diluted, spread plated to xylose lysine deoxycholate agar, and incubated at 37°C for 24 h. Salmonella colonies were then counted and log CFU per gram was calculated. The 1.5% HMBFA reduced counts by 4.9 ± 0.2 log units on day 1, whereas the positive control only decreased 2.2 ± 0.1 log units (P < 0.0001). The 1.5% CaHMB level decreased counts by 7.1 ± 0.04 log units by day 7 compared with the control decrease of 2.1 ± 0.1 log units (P < 0.0001). All HMBFA and CaHMB treatments resulted in the elimination of detectable Salmonella counts by day 14 (P < 0.0001 versus controls). In conclusion, HMB coating was effective at reducing Salmonella artificially inoculated to dog kibbles in a model of postextrusion contamination. |
[Mh] Termos MeSH primário: |
Manipulação de Alimentos/métodos Salmonella enteritidis/efeitos dos fármacos Valeratos/farmacologia
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[Mh] Termos MeSH secundário: |
Animais Contagem de Colônia Microbiana Cães Contaminação de Alimentos/prevenção & controle Microbiologia de Alimentos Seres Humanos Ácidos Pentanoicos Salmonella enteritidis/crescimento & desenvolvimento
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[Pt] Tipo de publicação: | JOURNAL ARTICLE |
[Nm] Nome de substância:
| 0 (Pentanoic Acids); 0 (Valerates); 1BR7X184L5 (isovaleric acid); 3F752311CD (beta-hydroxyisovaleric acid) |
[Em] Mês de entrada: | 1711 |
[Cu] Atualização por classe: | 171102 |
[Lr] Data última revisão:
| 171102 |
[Sb] Subgrupo de revista: | IM |
[Da] Data de entrada para processamento: | 170601 |
[St] Status: | MEDLINE |
[do] DOI: | 10.4315/0362-028X.JFP-16-506 |
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