Data/hora: 11/06/2024 07:02:25

Biblioteca(s): | Embrapa Pecuária Sudeste.
Data corrente: | 23/08/2011
Data da última atualização: | 21/07/2022
Autoria: | NASSU, R. T.; DUGAN, M. E. R.; JUÁREZ, M.; BASARAB, J. A.; BARON, V. S.; AALHUS, J. L.
Afiliação: | RENATA TIEKO NASSU, CPPSE; M. E. R. DUGAN, Agriculture and Agri-Food Canada, Lacombe Research Centre; M. JUÁREZ, Agriculture and Agri-Food Canada, Lacombe Research Centre; J. A. BASARAB, Alberta Agriculture and Rural Development, Lacombe Research Centre; V. S. BARON, Agriculture and Agri-Food Canada, Lacombe Research Centre; J. L. AALHUS, Agriculture and Agri-Food Canada, Lacombe Research Centre.
Título: | Effect of a-tocopherol tissue levels on beef quality.
Ano de publicação: | 2011
Fonte/Imprenta: | Animal, v. 5, n. 12, p. 2010-2018, December 2011.
DOI: | 10.1017/S1751731111001182
Idioma: | Inglês
Conteúdo: | To evaluate meat quality of beef with different a-tocopherol tissue levels, 55 feedlot steers were fed a barley-based &#64257;nisher diet with four vitamin E supplementation levels (0, 350, 700 and 1400 IU DL-a-tocopheryl acetate/animal per day) for 120 days. Although the increase in oxidation levels overtime was much smaller (P , 0.001) in the high-medium and high groups, a-tocopherol tissue levels did not affect (P . 0.05) pH, proximate analysis, drip and cooking losses, and shear force of steaks. No effect of a-tocopherol tissue levels was found in retail evaluation of steaks after a short ageing time of 6 days, but with 21 days of ageing, a delay in formation of metmyoglobin (P 5 0.008) was observed in steaks with higher tissue levels of a-tocopherol. Similar results were found for ground beef (25% fat) prepared from 6-day aged meat. Thus, higher a-tocopherol tissue levels protect ground beef and long-aged steaks from discolouration and lipid oxidation.
Palavras-Chave: | Ageing; Tenderness.
Thesaurus Nal: | beef; vitamin E.

Categoria do assunto:

L Ciência Animal e Produtos de Origem Animal
Q Alimentos e Nutrição Humana

URL: | http://ainfo.cnptia.embrapa.br/digital/bitstream/item/40361/1/PROCI-00089.pdf
Registro original: | Embrapa Pecuária Sudeste (CPPSE)

Exemplares:

CPPSE - (20541-1) - UPC - AP - DD - PROCI-2011.00089 - NAS - 2011.00089 - DIS
CPPSE - (21068-1) - UPC - AP - DD - PROCI-2012.00028 - NAS - 2012.00028 - DIS