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Food Science and Technology (Campinas)

On-line version ISSN 1678-457X

Abstract

SILVA, Marielen de Lima; CONTRERAS-CASTILLO, Carmen Josefina  and  ORTEGA, Edwin Moisés Marcos. Effect of cooking on the quality of beef Semitendinosus muscle. Ciênc. Tecnol. Aliment. [online]. 2007, vol.27, n.3, pp. 441-445. ISSN 1678-457X.  http://dx.doi.org/10.1590/S0101-20612007000300003.

The purpose of the experiment reported here was to determine the effectiveness of heat treatments in water and in steam at 80 °C to inactivate the bacterium Clostridium botulinum type E in samples of beef Semitendinosus muscle. The product’s tenderness was evaluated based on a Warner-Bratzler Shear Force (WBSF) analysis and its attributes of juiciness, subjective tenderness, flavor and connective tissue were evaluated sensorially. The treatment at 80 °C effectively killed the bacterium, but no significant difference was found in the attribute of objective tenderness (shear force) evaluated after the two treatments. The sensorial analysis indicated a positive correlation between the attributes of juiciness and tenderness, while the connective tissue showed a negative correlation to tenderness. Flavor proved uncorrelated with tenderness, juiciness and connective tissue.

Keywords : Clostridium botulinum type E; thermobacteriology; beef; tenderness; quality; cooking.

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