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Trace and Major Element Concentration in Cottage Cheese from Latvia

机译：拉脱维亚奶酪中的微量元素和主要元素含量

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摘要

Cottage cheese, a dairy product derived from cow milk by fermentation, traditionally is known as a component of healthy human diet and is widely consumed mostly in Northern Europe and Russia. The aim of the study was to investigate content of trace and major elements in cottage cheese and to discover a merit of cottage cheese in daily nutrition as well as to reveal possible ways of product contamination with potentially toxic elements. Twenty seven cottage cheese samples were obtained from individual dairy farms and supermarkets of Latvia. Samples were acid digested and analysed by atomic absorption spectrometry methods. Results revealed concentration rates for eleven trace and major elements (Ca, Cr, Cu, Fe, K, Mg, Mn, Na, Ni, Pb, Zn). Seasonal fluctuations of element content in cottage cheese were found. Average content of some potentially toxic elements (Pb, Ni) was estimated as inappropriate high for cottage cheese samples derived in summer season. Amount of essential major elements in cottage cheese with different origin was not significantly variable, except for calcium which was detected in lower concentration in cottage cheese obtained in supermarkets, while range of potentially toxic elements was higher in cottage cheese samples derived from individual dairy farms.
机译：奶酪是一种通过发酵从牛奶中提取的乳制品，传统上被称为健康人类饮食的组成部分，在北欧和俄罗斯广泛被广泛食用。该研究的目的是调查奶酪中微量元素和主要元素的含量，发现奶酪在日常营养中的优点，并揭示产品可能被有毒元素污染的方式。从拉脱维亚的各个奶牛场和超级市场获得了27个干酪样品。样品经过酸消化并通过原子吸收光谱法进行分析。结果显示了11种微量元素和主要元素（Ca，Cr，Cu，Fe，K，Mg，Mn，Na，Ni，Pb，Zn）的集中度。发现干酪中元素含量的季节性波动。对于夏季提取的干酪样品，某些潜在有毒元素（铅，镍）的平均含量估计不适当。除了在超市获得的干酪中所检测到的钙浓度较低外，钙的来源不同的干酪中的主要主要元素的量没有显着变化，而来自各个奶牛场的干酪样品中的潜在有毒元素的范围较高。

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