CO2 production in extruded dry foods for dogs exposed to different moisture levels with and without use of mold inhibitor

Autores

  • Cleusa Bernadete Marcon de Brito Universidade Federal do Paraná
  • Ananda Portella Félix Universidade Federal do Paraná
  • Carolina Pedro Zanatta Universidade Federal do Paraná
  • Simone Gisele Oliveira Universidade Federal do Paraná
  • Everton Luis Krabbe Embrapa Aves e Suínos
  • Alex Maiorka Universidade Federal do Paraná

DOI:

https://doi.org/10.5433/1679-0359.2013v34n2p921

Palavras-chave:

Dry extruded food, Fungus, Ammonium propionate, Water activity.

Resumo

Four extruded dog foods with different moisture contents and ammonium propionate (AP) were manufactured with the objective of evaluating CO2 production. The diets were: low moisture (8.1%) with no inclusion of ammonium propionate) (LMNP), high moisture (10.2%) with no inclusion of AP (HMNP), high moisture with inclusion of a low level of AP (0.065%) (HMLP), and high moisture with inclusion of a high level of AP (0.130%) (HMHP). The diets were stored in a chamber at 75% air relative humidity and 25-28ºC temperature. CO2 was determined on days 0, 30, 60, and 90 by titration with hydrochloric acid (HCl) 0.05N to estimate mold growth. A completely randomized splitplot experimental design was applied. The diet HMNP measured in 90 days presented the highest CO2 concentration and mycotoxins production. Dry dog foods with moisture content higher than 10.2% without mold inhibitors may present significant mold growth and mycotoxis production after 90 days storage. Extruded dry foods for dogs with less than 8.1% moisture may not need mold inhibitors.

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Biografia do Autor

Cleusa Bernadete Marcon de Brito, Universidade Federal do Paraná

Pós-Graduação em Ciências Veterinárias, Universidade Federal do Paraná, UFPR, Curitiba, PR.

Ananda Portella Félix, Universidade Federal do Paraná

Profª do Deptº de Zootecnia, UFPR, Curitiba, PR.

Carolina Pedro Zanatta, Universidade Federal do Paraná

Pós-Graduação em Ciências Veterinárias, Universidade Federal do Paraná, UFPR, Curitiba, PR.

Simone Gisele Oliveira, Universidade Federal do Paraná

Profª. do Deptº de Zootecnia, UFPR, Curitiba, PR.

Everton Luis Krabbe, Embrapa Aves e Suínos

Pesquisador da Embrapa Suínos e Aves, Centro Nacional de Pesquisa em Suínos e Aves, Concórdia, SC.

Alex Maiorka, Universidade Federal do Paraná

Prof. do Deptº de Zootecnia, UFPR, Curitiba, PR.

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Publicado

2013-05-14

Como Citar

Brito, C. B. M. de, Félix, A. P., Zanatta, C. P., Oliveira, S. G., Krabbe, E. L., & Maiorka, A. (2013). CO2 production in extruded dry foods for dogs exposed to different moisture levels with and without use of mold inhibitor. Semina: Ciências Agrárias, 34(2), 921–926. https://doi.org/10.5433/1679-0359.2013v34n2p921

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