Agricultural Faculty, Department of Food Engineering, Namik Kemal University, 59030 Tekirdag, Turkey.
J Food Sci Technol. 2013 Jun;50(3):505-13. doi: 10.1007/s13197-011-0375-3. Epub 2011 Apr 19.
Meatball samples were irradiated using a (60)Co irradiation source (with the dose of 1, 3, 5 and 7 kGy) and stored (1, 2 and 3 weeks at 4°C) to appraise some physicochemical properties and the fatty acid composition. The physicochemical results showed no significant differences in moisture, protein, fat and ash content of meatballs because of irradiation. However, total acidity, peroxide and thiobarbituric acid (TBA) values increased significantly as a result of irradiation doses and storage period. The fatty acid profile in meatball samples changed with irradiation. While saturated fatty acids (C16:0, C17:0, C18:0, and C20:0) increased with irradiation, monounsaturated (C14:1, C15:1, C18:1, and C20:1) and polyunsaturated (C18:2, C18:3, and C22:2) fatty acids decreased with irradiation. Trans fatty acids (C16:1trans, C18:1trans, C18:2trans, C18:3trans) increased with increasing irradiation doses. Meatball samples irradiated at 7 kGy had the highest total trans fatty acid content. This research shows that some physicochemical properties and fatty acid composition of meatballs can be changed by gamma irradiation.
肉丸样品用(60)Co 辐照源进行辐照(剂量分别为 1、3、5 和 7 kGy),并在 4°C 下贮藏(1、2 和 3 周),以评估一些理化性质和脂肪酸组成。理化结果表明,辐照对肉丸的水分、蛋白质、脂肪和灰分含量没有显著影响。然而,总酸度、过氧化物和硫代巴比妥酸(TBA)值随着辐照剂量和贮藏期的增加而显著增加。肉丸样品中的脂肪酸谱随着辐照而变化。随着辐照,饱和脂肪酸(C16:0、C17:0、C18:0 和 C20:0)增加,而单不饱和脂肪酸(C14:1、C15:1、C18:1 和 C20:1)和多不饱和脂肪酸(C18:2、C18:3 和 C22:2)减少。反式脂肪酸(C16:1trans、C18:1trans、C18:2trans、C18:3trans)随着辐照剂量的增加而增加。辐照剂量为 7 kGy 的肉丸样品具有最高的总反式脂肪酸含量。这项研究表明,γ 辐照可以改变肉丸的一些理化性质和脂肪酸组成。