Biochemical changes in alternative poultry meat during refrigerated storage
R. bras. Ci. Vet. ; 19(3)2012.
Abstract:
The aim of this study was evaluated the physical and chemical changes in five types of alternative poultry meat keep at refrigerated conditions (4±1C) during 18 days. For this purpose, breast meat of conventional, organic and free-range chicken, duck and quail were purchase from markets of Niteroi city (Rio de Janeiro, Brazil). Levels of pH, thiobarbituric acid reactive substances (TBARS) and biogenic amines (cadaverine and putrescine) were determinate. Statistic evaluation was performed using analyze of variance and Tukey test. The results showed a gradual and proportional increment of pH values (between 5.5 and 6.5) in all poultry meats during the storage time; an increment of TBARS values in the first days of storage, remaining stables to the end of experiment. A significant increment of putrescine values was observed after the sixth day remaining stable in conventional chicken and quail until the end of experiment while significant reduction was observed in the rest of poultry meats. Finally, only conventional andorganic chicken and quail showed a gradual increment during storage time. In conclusion, significant biochemical changes was observed during the storage time being that pH, cadaverine and putrescine values could be parameters using like deterioration indicators for these products.
0 comentários