@article{MAKHILLJAVA201110223040,
title = {On the Thermal Properties of Frozen, Refrozen and Freeze Drying Porcine Longissimus dorsi},
journal = {Journal of Animal and Veterinary Advances},
volume = {10},
number = {22},
pages = {2956-2960},
year = {2011},
issn = {1680-5593},
doi = {javaa.2011.2956.2960},
url = {https://makhillpublications.co/view-article.php?issn=1680-5593&doi=javaa.2011.2956.2960},
author = {R.,J.L.,R.R.,A. and},
keywords = {Pork loin,modulated DSC,protein denaturation,enthalpy,heat capacity},
abstract = {Modulated Differential Scanning Calorimetry (Modulated DSC) was used to investigate the protein denaturation characteristics of Longissimus dorsi muscle at different conditions; fresh, frozen and refrozen. Meat was also freeze drying to determinate its thermal properties. The thermograms indicated three exothermic peaks between 45-85°C, corresponding to denaturation of myosin (peak 1), sarcoplasmic proteins (peak 2) and actin (peak 3). Refrozen process significantly affected denaturation enthalpy reducing the value from 2.69-2.21 J g-1. Samples submitted to freeze drying showed a single sharp peak centered about 81.85°C with a similar trend in regards to denaturation enthalpy. In the case of heat Capacity (Cp), the maximum change was observed at 80°C with a reduction following the order; fresh, frozen and refrozen. This phenomenon was also found for freeze drying samples however, the single broad change was in the temperature range of 40-100°C. From these results, it is concluded that moisture content plays an important role in the thermal properties of meat.}
}