Sebecić Blazenka, Vedrina-Dragojević Irena
Faculty of Pharmacy and Biochemistry, Department of Food Chemistry, A. Kovacića 1, 10000 Zagreb, Croatia.
Nahrung. 2004 Apr;48(2):141-4. doi: 10.1002/food.200300390.
Cereal-based confectionery products being consumed through whole human life are considered mainly to be a source of carbohydrates, that is energy, although cereals are a rich source of minerals as well. To evaluate some hard biscuits produced in Croatia as a source of different trace elements in nutrition, in this study Zn and Cu contents were determined in classic wheat flour biscuits and in dietetic biscuits enriched with whole wheat grain flour or whole wheat grain grits, soya flour and skimmed milk. Zn was determined by flame atomic absorption spectrometry (AAS); Cu was determined by inductively coupled plasma atomic emission spectroscopy (ICP-AES). The results show that the Zn content in different kinds of biscuits ranges from 5.89 up to 17.64 mg/kg and the Cu content ranges from 1.15 up to 2.79 mg/kg depending on the type of wheat milling products and mineral content of other ingredients used. Enriched dietetic biscuits produced from wheat flour type 850 and whole wheat grain flour and/or soya flour and skimmed milk were almost 200% and 150% higher in Zn and Cu, respectively, in comparison to classic white wheat flour biscuits and can be considered as good sources of Zn and Cu in nutrition.
谷类甜食产品伴随人的一生被食用，尽管谷类也是丰富的矿物质来源，但主要被视为碳水化合物的来源，也就是能量来源。为了评估克罗地亚生产的一些硬饼干作为营养中不同微量元素来源的情况，本研究测定了传统小麦粉饼干以及富含全麦粉、全麦粗粒、大豆粉和脱脂牛奶的营养饼干中的锌和铜含量。锌通过火焰原子吸收光谱法（AAS）测定；铜通过电感耦合等离子体发射光谱法（ICP - AES）测定。结果表明，不同种类饼干中的锌含量在5.89至17.64毫克/千克之间，铜含量在1.15至2.79毫克/千克之间，这取决于小麦磨粉产品的类型以及所使用其他成分的矿物质含量。与传统白小麦粉饼干相比，由850型小麦粉、全麦粉和/或大豆粉以及脱脂牛奶制成的强化营养饼干的锌和铜含量分别高出近200%和150%，可被视为营养中锌和铜的良好来源。
