Choe Juhui, Min Joong-Seok, Lee Sang-Ok, Khan Muhammad Issa, Yim Dong Gyun, Lee Mooha, Jo Cheorun
Department of Agricultural Biotechnology, Center for Food and Bioconvergence, and Research Institute of Agriculture and Life Science, Seoul National University, Seoul 08826, Korea.
CJ Food Research Center, Suwon 16495, Korea.
Korean J Food Sci Anim Resour. 2018 Jul;38(3):433-441. doi: 10.5851/kosfa.2018.38.3.433. Epub 2018 Jul 31.
The objective of present study was to investigate the effect of cooking and their combinations with re-heating methods on the formation of cholesterol oxidation products (COPs) in stored chicken thigh meat. Pan roasting, steaming, oven grilling, charcoal grilling, and microwaving were used for cooking. Re-heating of samples was done using the same cooking methods or microwaving after 3 and 6 d of refrigerated storage. Cooking and re-heating resulted in reduction of crude fat and cholesterol contents of chicken thigh meat depending on storage period before re-heating. Cooking and storage period had no influence on the total amount of COPs. The highest total amount of COPs was observed in meat samples cooked by steaming and reheated by microwaving after 6 d of storage, which showed similar value to raw chicken meat stored for 6 days. However, different re-heating methods formed different types of COPs depending on storage period before re-heating. The high amount (<0.05) of 25-hydroxycholesterol or α-epoxide was detected in meat samples reheated by steaming or microwaving at 3 or 6 d of storage after steamed cooking, respectively. As a result, the combination of steaming and re-heating with microwaving could increase the total amount of COPs in chicken thigh meat and different cooking/re-heating methods could form different types of COPs, even though no significant difference in the total amount of COPs depending on storage period.
本研究的目的是调查烹饪及其与再加热方法的组合对储存鸡腿肉中胆固醇氧化产物(COPs)形成的影响。采用平底锅煎、蒸、烤箱烤、炭火烤和微波加热进行烹饪。样品在冷藏储存3天和6天后,使用相同的烹饪方法或微波加热进行再加热。烹饪和再加热导致鸡腿肉的粗脂肪和胆固醇含量根据再加热前的储存时间而降低。烹饪和储存时间对COPs的总量没有影响。在储存6天后蒸制并微波再加热的肉样中观察到COPs的总量最高,其值与储存6天的生鸡肉相似。然而,根据再加热前的储存时间,不同的再加热方法会形成不同类型的COPs。在蒸制烹饪后,分别在储存3天或6天的肉样中,通过蒸或微波再加热检测到高含量(<0.05)的25-羟基胆固醇或α-环氧化物。结果,蒸制和微波再加热的组合会增加鸡腿肉中COPs的总量,并且不同的烹饪/再加热方法会形成不同类型的COPs,尽管根据储存时间COPs的总量没有显著差异。