Selenium levels in breads from Sakarya, Turkey.
Selenium (Se) is an important trace element for human and animal health. It accumulates in wheat and corn, which is consumed mostly as bread. The Turkish population consumes mainly white wheat, whole wheat (brown bread) and corn breads. In this study, samples of these breads were collected from six different bakeries in the city of Sakarya, and their selenium levels were determined by ICP-OES after a chemical digestion. It was found that average selenium levels in white wheat, whole wheat and corn breads were 1149, 1204 and 2023 µg/kg, respectively. The results are compared with daily recommended intake and upper tolerable levels for selenium.
With the zhuzhi 8 as material ,researched the effects on agronomy character under different cultivated density. Experiment results showed that:Density affects sesame production construction and bear character,then affects sesame production directly. 5000 ～10000 is the best cultivated density range.