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Physicochemical Changes in Pork Loins Affected by Different Cooking Methods  

Yang, Jong-Beom (Department of Food Science and Biotechnology, Dongnam Health College)
Ko, Myung-Soo (Department of Food Science and Biotechnology, Dongnam Health College)
Moon, Yoon-Hee (Department of Food Science and Biotechnology, Kyungsung University)
Publication Information
Food Science and Preservation / v.16, no.4, 2009 , pp. 534-540 More about this Journal
Abstract
To decrease human intake of animal fats, changes in the physicochemical characteristics of pork loins prepared by different cooking methods (boiling, steaming, baking, and frying) were investigated. The moisture content of the cooked meat decreased with all methods, and the crude lipid content decreased with all methods except frying. The cooking loss and the moisture drain rate of the cooked meats were greatest during frying, whereas the lipid drain rate was greatest with steaming. The pH value increased during all cooking processes tested. The acid value and refraction index of meat fat markedly increased by steaming and frying, respectively. The hardness, gumminess, chewiness, and cohesiveness of the meat increased notably during frying. The springiness decreased by both boiling and steaming, but rarely by baking or frying. The CIE $L^{\ast}$ (lightness) value markedly increased by both boiling and steaming, and the CIE $a^{\ast}$ (redness) value decreased notably during both boiling and steaming. The CIE $b^{\ast}$ (yellowness) value increased by both baking and frying, but usually did not increase with either boiling or steaming. The composition of fatty acids was not significantly affected by any cooking methods except frying.
Keywords
physicochemical changes; pork loins; cooking methods;
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Times Cited By KSCI : 3  (Citation Analysis)
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