Effects of Strain and Selection for Growth on Tenderness in Sheep and Beef Meats
نویسندگان
چکیده
INTRODUCTION Tenderness is an important attribute of meat which has a significant impact on consumer acceptability of the product. Considerable variation in meat tenderness exists even under modem production and handling systems (Morgan et al., 1991). Final tenderness of meat is determined by the rate and extent ofpost mortem proteolysis of key myofibrillar proteins. Also results of a number of experiments have indicated that the calpain proteolytic system plays a major role in the tenderization of meat post mortem (Koohmaraie, 1988, 1992a,b).
منابع مشابه
The effect of meat marinating with lactic and citric acid on some physicochemical and electrophoretic pattern of beef burger
Background: Meat products may be unacceptably tough because of the high connective tissue content of meats used in their manufacture. OBJECTIVE: The aim of this study was using meat acid marination method on some physicochemical and sensory characteristics of beef burgers. METHODS: Meat was marinated in three concentrations (0.5%, 1% and 1.5%) of lactic and citric acid solutions (1:4 w/v) at 4 ...
متن کاملComparative studies on calpain activity of different muscles of cattle, camel, sheep and goat
Tenderness is the single most important factor influencing consumer acceptance of meat. The calpain proteolytic system is known to be responsible for the post-mortem tenderization of meat. The purpose of this study was to determine and compare the tensile strength and total calpain activities in different muscles of camel, cattle, sheep and goat. In camels, the effect of age and sex of animal w...
متن کاملEffect of Sumac (Rhus coriaria) and Rosemary (Rosmarinus officinalis) Water extracts on microbial growth changes in ground beef meat
The present study investigated the effect of sumac (SWE) and Rosemary water extracts (RWE) on microbial growth in ground beef meat during refrigerated storage. The meat samples were explored for changes in TVC, E.coli (0157:H7) and S.aureus populations. Antimicrobial effectiveness of extracts was more pronounced against Gram-positive strain compared with Gram-negative strain. Antimicrobial impa...
متن کاملEffect of sumac (Rhus coriaria) and rosemary (Rosmarinus officinalis) water extracts on microbial growth changes in ground beef meat
The present study investigated the effect of sumac (SWE) and rosemary water extracts (RWE) on microbial growth in ground beef meat during refrigerated storage. The meat samples were explored for changes in TVC, E. coli (0157:H7) and S. aureus populations. Antimicrobial effectiveness of extracts was more pronounced against gram-positive strain compared with gram-negative strain...
متن کاملAdding Enzymes to Improve Beef Tenderness
Importance of Beef Tenderness Beef palatability is affected by many factors and tenderness is cited as one of the most important. Consumers are willing to pay a premium for a guaranteed tender product with the potential to increase the value of the middle meats over $60 per carcass (Miller et al., 2001). Consequently, the meat industry is in a continual search for methods to improve the tendern...
متن کامل