Chemical basis for beef charqui meat texture



Título del documento: Chemical basis for beef charqui meat texture
Revista: Brazilian archives of biology and technology
Base de datos: PERIÓDICA
Número de sistema: 000348503
ISSN: 1516-8913
Autores: 1
2
2
1
Instituciones: 1Universidade de Sao Paulo, Faculdade de Ciencias Farmaceuticas, Sao Paulo. Brasil
2Universidade Estadual de Londrina, Departamento de Tecnología de Alimentos y Drogas, Londrina, Parana. Brasil
Año:
Periodo: Jul
Volumen: 50
Número: 4
Paginación: 719-724
País: Brasil
Idioma: Inglés
Tipo de documento: Artículo
Enfoque: Experimental
Resumen en inglés This work evaluated the relationship of charqui meat (CHM) chemical composition with the tenderness throughout its production. CHM was prepared from beef Vastus lateralis of 4-5 years old. Shear force of fresh CHM showed an approx. 3-fold increase in toughness compared to the raw material while, in the case of cooked CHM it was 6-fold increased in relation to the raw charqui. The moisture content decreased by 39.0 and 58.0% (p<0.05) for uncooked and cooked CHM, respectively, in relation to the raw material. Mathematical modeling of the influence of these meat components showed that shear force increased exponentially with the loss of moisture. The texture of CHM was the result of a multitude of factors involving myofibril proteins which promoted dynamic biochemical events such as the binding of water molecules. It was the amount of the latter which ultimately determine the final charqui meat texture
Disciplinas: Química
Palabras clave: Bioquímica,
Química de alimentos,
Reticulación del colágeno,
Actividad del agua,
Humedad intermedia,
Productos cárnicos,
Proteínas miofibrilares
Keyword: Chemistry,
Biochemistry,
Food chemistry,
Collagen crosslinking,
Water activity,
Meat products,
Intermediate moisture,
Myofibrillar proteins
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