Propriedades químicas e físicas dos cortes cárneos de cordeiros Santa Inês produzidos no centro-oeste do Brasil
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Data
2008-01-30
Autores
Ricardo, Hélio de Almeida [UNESP]
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Editor
Universidade Estadual Paulista (Unesp)
Resumo
Foram utilizadas cinco meias-carcaças congeladas de cordeiros Santa Inês, obtidas 8 de um frigorífico comercial, abatidos com 35,0 kg de peso vivo, divididas em cinco cortes 9 comerciais: pescoço, paleta, costela, lombo e perna. Foram registrados o peso e as 10 porcentagens dos cortes, e avaliadas as propriedades químicas e físicas. Não houve 11 diferença entre os valores de pH para os cortes, com variação de 5,88 a 6,08. O lombo e a 12 perna apresentaram maior teor de proteína (20,79 e 20,66%), enquanto que pescoço e 13 costela apresentaram maior teor de extrato etéreo (4,44 e 4,95%). O teor de colesterol não 14 apresentou diferença entre os cortes, variando de 59,09 a 69,29 mg/100g. A composição de 15 ácidos graxos saturados e insaturados não apresentou diferença entre os cortes. Nos cortes, 16 o oléico foi o ácido graxo que mais contribuiu para o perfil total de ácidos graxos (47,55% 17 em média) enquanto que o ácido linoléico apresentou traços no pescoço, lombo e perna, 18 com teores de 0,33 e 0,35% para paleta e costela, respectivamente, e o ácido linolênico 19 apresentou traços no lombo e perna, e teores de 0,27, 0,28 e 0,14% para o pescoço, paleta e 20 costela, respectivamente. A perna apresentou maior força de cisalhamento em comparação 21 com a paleta e o lombo, enquanto que para cor, não houve diferença entre os cortes para 22 luminosidade (L*), a perna apresentou menor intensidade de vermelho (a*) e o lombo 23 maior intensidade de amarelo (b*).
Five halves frozen carcass of Santa Ines lambs, obtained from a commercial 7 slaughterhouse, slaughtered at 35.0 kg of live weight were separated in five commercial 8 cuts: neck, shoulder, ribs, loin and leg. There were recorded weight and cuts percentage 9 and evaluated chemical and physical traits. There wasn’t difference between pH values for 10 cuts, with variation of 5.88 to 6.08. Loin and leg had higher protein level (20.79 and 11 20.66%), while neck and ribs showed higher lipids levels (4.44 and 4.95%). Cholesterol 12 level wasn’t different between cuts, raging by 59.09 to 69.29 mg/100g. The composition of 13 saturated and unsaturated fatty acids didn’t showed difference between cuts. Oleic had 14 higher contribution for total fatty acid profile (mean of 47.55%), while linoleic had traces 15 in neck, loin and leg, showing for shoulder and ribs, levels of 0.33 e 0.35% respectively, 16 and linolenic showed traces in loin and leg, with levels of 0.27, 0.28 and 0.14% for neck, 17 shoulder and ribs respectively. Leg had higher shear force than shoulder and loin, and for 18 color, there wasn’t significative difference between cuts for luminosity (L*), leg showed 19 higher red intensity (a*) and loin higher yellow intensity (b*).
Five halves frozen carcass of Santa Ines lambs, obtained from a commercial 7 slaughterhouse, slaughtered at 35.0 kg of live weight were separated in five commercial 8 cuts: neck, shoulder, ribs, loin and leg. There were recorded weight and cuts percentage 9 and evaluated chemical and physical traits. There wasn’t difference between pH values for 10 cuts, with variation of 5.88 to 6.08. Loin and leg had higher protein level (20.79 and 11 20.66%), while neck and ribs showed higher lipids levels (4.44 and 4.95%). Cholesterol 12 level wasn’t different between cuts, raging by 59.09 to 69.29 mg/100g. The composition of 13 saturated and unsaturated fatty acids didn’t showed difference between cuts. Oleic had 14 higher contribution for total fatty acid profile (mean of 47.55%), while linoleic had traces 15 in neck, loin and leg, showing for shoulder and ribs, levels of 0.33 e 0.35% respectively, 16 and linolenic showed traces in loin and leg, with levels of 0.27, 0.28 and 0.14% for neck, 17 shoulder and ribs respectively. Leg had higher shear force than shoulder and loin, and for 18 color, there wasn’t significative difference between cuts for luminosity (L*), leg showed 19 higher red intensity (a*) and loin higher yellow intensity (b*).
Descrição
Palavras-chave
Ovino, Carne - Cortes, Alimentos, Carne - Cor, Sheep, Meat, Cuts yield
Como citar
RICARDO, Hélio de Almeida. Propriedades químicas e físicas dos cortes cárneos de cordeiros Santa Inês produzidos no centro-oeste do Brasil. 2008. vii, 54 f. Dissertação(mestrado) - Universidade Estadual Paulista, Faculdade de Medicina Veterinária e Zootecnia, 2008.