Evaluation of chromium, nickel, iron and manganese content in wheat, flour, bran and selected baked products

Current Issues in Pharmacy and Medical Sciences

Kot Andrzej¹  Marzec Zbigniew¹  Bawiec Piotr¹  Gawel Kinga²  Halabis Magdalena³  Solski Janusz³ 

[1] Chair and Department of Food and Nutrition, Medical University of Lublin, Chodzki 4a, 20-093 Lublin, Poland;Chair and Department of Pharmacology and Pharmacodynamics, Medical University of Lublin, Chodzki 4a, 20-093 Lublin, Poland;Department of Laboratory Diagnostics, Medical University of Lublin, Chodzki 1, 20-093 Lublin, Poland;

关键词: trace elements;    chromium;    nickel;    iron;    manganese;    bread;   

DOI  :  10.2478/cipms-2014-0016

来源: DOAJ

【 摘 要 】

Considering the nutritional values, breadstuff plays a big part in covering human nourishment needs and constitutes a base of all day diet. Moreover, bread is an excellent source of numerous vitamins and minerals the abundance of which depends on the degree of grinding. Thus, it seems to be very important to know the composition and level of bio-elements. That is why the main target of this study was to evaluate the concentration of selected trace elements: chromium (Cr), nickel (Ni), iron (Fe) and manganese (Mn) in wheat grain, wheat bran, different wheat and rye flour types and variety of breadstuff also with addition of grains and seeds from different bakeries and mills. Another task was to analyze if the technological process has an influence on secondary despoil of bread goods with heavy metal elements. The analyzed trace elements were measured with a precise and accurate atomic absorption spectrophotometric method (AAS) and the results were expressed in mg/kg of selected sample. Obtained results show that bread and grain products are a good source of trace elements like chromium, nickel, iron and manganese. However, the higher levels of chromium and nickel in bread goods could rather be an effect of impurity caused by a technological process in mill and bakeries.

【 授权许可】

Unknown