Roshanak Hedayatifar, Dr Ebrahim Falahi, Mehdi Birjandi,
Volume 12, Issue 4 (3-2011)
Abstract
Rice is the main food of people in Iran and about 2.4 billion of the world population. Although its cultivation areas are less than wheat but 85% of the total product is used by people. Consumption of rice per person is estimated 42.5 kg in Iran. So it is the second high consumed agricultural product. The aim of this study was determination amount of toxic and heavy metals in high consumed rice varites cultivated in different areas of Lorestan province. Materials and Methods: In this study 99 rice samples (Tarem and Domsiah) cultivated in three areas of Lorestan( khorramabad, Dorud and Borujerd) province were collected. Amount of Lead and Cadmium were analyzed by atomic absorption model BRAIC WFX 130. Data were gathered and analyzed by SPSS software and compared with national standards. Results: The results for Cd and Pb were 0.037±0.06 and 0.077±0.08 mg/kg respectively. Conclusion: Cadmium and Lead levels in rice samples caltivated in Lorestan province were less than Permissible limit, so there is no risk for human health.
Roshanak Hedayatifar,
Volume 19, Issue 2 (10-2017)
Abstract
Background: Trans fatty acids are known as the most harmful type of dietary fats. Food and Drug Administration (FAD) has announced that TFAs consumption should be reduced to less than 1% of energy consumption. The aim of this study was to compare the amount of fatty acids with emphasis on trans fatty acids of ghee (animal oil) and tail sheep.
Materials and Methods: 10 samples of ghee and 5 samples of tail sheep were transformed into methyl ester and analysis of fatty acid methyl esters were performed by gas chromatography (GC) with 100 meter capillary column and flame ionization detector (1m lit injected to GC).
Results: Results show that total trans fatty acid in tail sheep samples were 4.3 ± 2.5 and total saturated fatty acid were 47.6 ± 4.7 g/100g fat, and in ghee oil samples were 0.3 ± 0.1 and 40.7 ± 6.4 g/100g fat, respectively.
Conclusion: Ghee and tail sheep contains high percentage of saturated fatty acids including trans and saturated fatty acids. Therefore, people who consume these foods may put themselves at elevated risk of cardiovascular disease.
