Instrumental colour measurement as a tool for light veal carcasses online evaluation
Fecha
2013Autor
Versión
Acceso abierto / Sarbide irekia
Tipo
Artículo / Artikulua
Versión
Versión publicada / Argitaratu den bertsioa
Impacto
|
10.7482/0003-9438-56-085
Resumen
Eight-hundred and forty-five veal carcasses (535 males and 310 females) from Pirenaica
breed and its crosses with Charolais and Limousin were used to compare carcass colour visual
assessments 60min post-mortem with the values obtained using a spectrocolorimeter (CIE
Lab colour system) on the pectoralis superficialis muscle. Carcass weights ranged between
240 and 360 kg. Visual colour was subj ...
[++]
Eight-hundred and forty-five veal carcasses (535 males and 310 females) from Pirenaica
breed and its crosses with Charolais and Limousin were used to compare carcass colour visual
assessments 60min post-mortem with the values obtained using a spectrocolorimeter (CIE
Lab colour system) on the pectoralis superficialis muscle. Carcass weights ranged between
240 and 360 kg. Visual colour was subjectively evaluated by two trained assessors. The
best correlation between visual appraisal and L* was observed in carcasses of 300-320 kg.
A relatively strong correlation between visual appraisal and a* values was observed in
carcasses of 280-300 kg of weight. However, the correlation between b* and visual appraisal
was low. Using discriminant functions that included L* and a*, the spectrocolorimeter
classified correctly 60% of carcasses in the class colour assigned by the assessors. In fact,
99% of male and 96% of female carcasses were correctly assigned in the most common
colour of veal carcasses in the Spanish market (»pink«, 5). These results indicate that online
instrumental colour measurements on pectoralis superficialis muscle could be recommended
to objectively evaluate carcass colour of commercial veal for the Spanish market. [--]
Materias
Carcass colour,
Carcass veal,
Chromameter,
CIE Lab
Editor
Copernicus Publications
Publicado en
Archives Animal Breeding, 56, 851-860, 2013
Departamento
Universidad Pública de Navarra. Departamento de Ciencias del Medio Natural /
Nafarroako Unibertsitate Publikoa. Natura Ingurunearen Zientziak Saila