PDF(Pubmed)
Abstract：
The effect of previous frozen storage (-18 °C for 6 months) and different coating media (aqueous: water and brine; oily: sunflower, refined olive, and extra-virgin olive oils) on the essential macroelement and trace element content of canned Atlantic mackerel (Scomber scombrus) was studied. Previous frozen storage led to an increased (p < 0.05) content of canned samples of K (oil-coated samples) and Ca (all coating conditions) and to a decreased (p < 0.05) content of P (aqueous-coating samples) and S (water- and oil-coated samples). For trace elements, a content increase (p < 0.05) in Cu and Se (brine-canned samples) and Mn (water- and refined-olive-oil-coated samples) was detected in canned fish muscle with frozen storage. Concerning the coating effect, aqueous-coating samples showed lower (p < 0.05) Mg, P, S, K, and Ca contents than their corresponding oil-coated samples. For trace elements, lower average contents were found for Co, Cu, Mn, Se, and Fe in aqueous-coating fish muscle when compared to their counterparts coated in oily media. Content changes in the different elements in canned fish muscle are discussed based on interactions with other tissue constituents and modifications that such constituents undergo during processing (i.e., protein denaturation, liquor losses from the muscle, lipid changes).
摘要：
先前冷冻储存（-18°C持续6个月）和不同涂层介质（水性：水和盐水；油性：向日葵，精制橄榄,和特级初榨橄榄油）对大西洋鲭鱼罐头（Scomberscombrus）必需的宏观元素和微量元素含量的影响。先前的冷冻储存导致K(油涂覆的样品)和Ca(所有涂覆条件)的罐装样品的含量增加(p<0.05),并且导致P(水涂覆的样品)和S(水涂覆的样品和油涂覆的样品)的含量降低(p<0.05)。对于微量元素，在冷冻储存的罐装鱼肌肉中检测到Cu和Se（盐水罐装样品）和Mn（水和精制橄榄油涂层样品）的含量增加（p<0.05）。关于涂层效果，水性涂料样品显示较低(p<0.05)Mg，P,S,K,和Ca含量比其相应的油涂层样品。对于微量元素，Co的平均含量较低，Cu,Mn,Se,与在油性介质中涂覆的对应物相比，水性涂层鱼肌肉中的铁和铁。基于与其他组织成分的相互作用以及这些成分在加工过程中经历的修饰，讨论了罐装鱼肌肉中不同元素的含量变化（即，蛋白质变性，肌肉中的液体损失，脂质变化)。
