Cooking, storage, and reheating effect on the formation of cholesterol oxidation products in processed meat products

Cited 23 time in Web of Science Cited 26 time in Scopus
Khan, Muhammad I.; Min, Joong-Seok; Lee, Sang-Ok; Yim, Dong Gyun; Seol, Kuk-Hwan; Lee, Mooha; Jo, Cheorun
Issue Date
BioMed Central
Lipids in Health and Disease, 14(1):89
Processed meat productsCooking and reheating methodsTotal cholesterolCholesterol oxidation products (COPs)
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Cholesterol is an important biological compound; however, its oxidation products have been proven to be harmful to human health. Cooking, storage, and reheating methods significantly affect the safety of meat products, as they contribute to the production of cholesterol oxidation products (COPs).

Three cooking methods were used to cook sausages, loin ham, bacon, luncheon meat, and pressed ham, in order to investigate the effect of cooking, storage, and reheating on total cholesterol and on the formation of COPs. Cooked samples were stored at 4 °C and reheated after 3 and 6 storage days by the same cooking method or by microwaving. The samples were assessed for total lipids, cholesterol, and cholesterol oxides.

The average cholesterol content in the processed meat varied from 76.0 mg/100 g to 201.70 mg/100 g. Microwaved ham showed the lowest cholesterol content compared to that of other processed meat products. Significant differences were found in cholesterol content and cholesterol oxidation products depending on cooking, storage, and reheating methods. Six cholesterol oxides were found in processed meat, of which 7β-hydroxycholesterol and α-epoxides were detected as the major oxidation products.

Microwaving and oven grilling resulted in higher production of COPs in processed meat as compared with other cooking methods. Refrigerated storage tended to significantly increase the COPs content.
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