zareiyan, mohammad and mahmoodi, razagh (2019) بررسی میزان سرب، کادمیوم و آرسنیک در برنج های وارداتی و برنج های تولید داخل عرضه شده در شهر بوشهر، سال۱۳۹۷. Masters thesis, Qazvin uneversity of medical sciences.
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Abstract
Abstract Backgroundand aim: Food contamination with heavy metals has always been a serious threat to human health that can have adverse health effects on living organisms. The purpose of this study was to evaluate the amount of heavy metals (lead, arsenic, cadmium) in imported and cultivated rice in Bushehr markets in 2019. Materials and Methods: This is a descriptive cross-sectional study in 2019 Six cultivated and six imported brands that widely used were collected from the local market in Bushehr. Three samples from each brand were collected and analyzed. After acid digestion, the amounts of lead, arsenic and cadmium from each brand were determined by atomic absorption spectrometry. SPSS and Excel software and Kolmogorov–Smirnov test and T.Test were used for calculating and It was finally compared to national and world standards. Results: The results of this study show that the average concentrations of lead (Pb), arsenic (As), and cadmium (Cd) in rice cultivated within 0.246±0.194, 0.074±0.025, 0.150±0.124 mg/kg in terms of dry weight respectively and in imported rice were 0.086±0.031, 0.085±0.021, 0.031±0.007 mg/kg in terms of dry weight respectively. It should be noted that the highest amount of lead, arsenic, and cadmium in cultivate grow rice produced in samples kamfirooz, sadri and kamfirooz was 0.595, 0.117 and 0.411 respectively and the lowest amount of lead, arsenic, and cadmium in samples anbarboo, champa and broken champa was 0.082, 0.032 and 0.031 mg / kg dry weight respectively. the highest amount of lead, arsenic, and cadmium in imported rice in samples rajab, tabiat and tabiat with 0.137, 0.12 and 0.047 respectively and the lowest amount of lead, arsenic, and cadmium in samples mohsen, Mohsen and mohsen was 0.035, 0.048 And 0.021 mg/kg dry weight respectively. Conclusion: The average amount of lead and cadmium (0.2 and 0.1 mg kg-1) respectively in cultivated rice is slightly higher than FAO/WHO guideline and national standards, while the arsenic level is below standard. In all imported rice the amount of metals required is lower than FAO/WHO guideline and national standards. Due to the increased nutrients contaminated with heavy metals due to the bioaccumulation properties of the body tissue and its health risks, it is recommended to use more utter products
| Item Type: | Thesis (Masters) |
|---|---|
| Subjects: | R Medicine > RN Health > RN1006 Health and food safety |
| Divisions: | University Thesis > Faculty of Health > Health and Food Safety |
| Depositing User: | Health School Students |
| Date Deposited: | 06 Jun 2020 04:18 |
| Last Modified: | 06 Jun 2020 04:18 |
| URI: | http://eprints.qums.ac.ir/id/eprint/9774 |
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