SciELO - Scientific Electronic Library Online

 
vol.43 número2Resistencia a antimicrobianos en cepas de Mannheimia haemolytica aisladas de exudado nasal de bovinos productores de lecheInterrelaciones entre ureagénesis y gluconeogénesis hepática en rumiantes alimentados con elevado contenido de nitrógeno índice de autoresíndice de assuntospesquisa de artigos
Home Pagelista alfabética de periódicos  

Veterinaria México

versão impressa ISSN 0301-5092

Resumo

MAMANI-LINARES, Willy; ALOMAR, Daniel  e  GALLO, Carmen. Potential use of near infrared reflectance spectroscopy (NIRS) for the identification of beef, llama and horse jerky. Vet. Méx [online]. 2012, vol.43, n.2, pp. 133-141. ISSN 0301-5092.

Visible and near infrared reflectance spectroscopy (VIS/NIRS) was evaluated as a tool to discrimínate jerky from different species. Spectra were taken by reflectance in a NIRSystems 6500 monochromator and the software NIRS 3.0 and WinIsi II Version 1.02A were used. Twenty samples of jerky corresponding to beef, llama and horses, respectively, were ground, homogenized and analyzed spectrally. The regression equations (PLS) were developed testing different mathematical treatments. The results for jerky show that NIRS can successfully discriminate 100% of llama, 95% of horses and 80% of beef samples, probably as a consequence of differences in intramuscular fat, protein and water contents of the different species. Thus, NIRS is a fast, inexpensive and non-destructive method that can be used to discriminate jerky from these species.

Palavras-chave : discrimination of jerky; beef; llama; horses; NIRS.

        · resumo em Espanhol     · texto em Espanhol     · pdf em Espanhol