Abstract
This study was conducted to develop a method for improving tenderness and overall qualities of tough buffalo meat using plant proteolytic enzymes from Cucumis trigonus Roxb (Kachri) and Zingiber officinale roscoe (Ginger rhizome). Their tenderizing efficacy was compared with the most popular enzyme papain. 3 × 3 × 3 cm chunks from Biceps femoris muscles of spent Murrah buffaloes (4–5 years age) were marinated with distilled water (control), 2% (w/w) powdered cucumis extract, 5% (w/v) ginger extract or 0.2% (w/w) papain for 48 h at 4 °C and subjected to various physico-chemical, histological and sensory evaluations. An increase ( p<0.01) in collagen solubility, sarcoplasmic and myofibrillar protein solubility, and reduction ( p<0.01) in shear force values were observed in all enzyme-treated samples compared to control. Electrophoretic pattern of muscle proteins also revealed extensive proteolysis and reduction in number of protein bands in all treated samples. Improvement ( p<0.01) in flavor, juiciness, tenderness and overall acceptability scores were observed in all enzyme-treated samples compared to controls. Ginger extract-treated meat samples received better scores for appearance, flavor, tenderness and overall acceptability. From these results, it is shown that ginger and cucumis can be used as an effective alternative to papain.
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