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p-Index From 2021 - 2026
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All Journal Biological Environment and Pollution
Parisa Ziarati
Islamic Azad University
Agriculture, Biological Sciences & Forestry Energy Environmental Science

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Detoxification of Heavy Metals from Oryza sativa Rice by Novel Agro Waste : Rice Husk Treated by Coffee Bean Parisa Ziarati; Sepideh Tajik; Barbara Sawicka; Luis Cruz-Rodriguez
Biological Environment and Pollution Vol. 2 No. 1 (2022)
Publisher : Association for Scientific Computing, Electronics, and Engineering (ASCEE)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31763/bioenvipo.v2i1.590

Abstract

Rice is one of the most consumed grains not only in Iran but also in many other countries and it is vital to decrease the amount of heavy metals in rice. The aim of current study was to investigate the impact of coffee bean waste (CBW) and Rice Husk ( RH) as bio-adsorbent on reducing Lead, Arsenic, Cadmium and Nickel in rice (Oryza sativa). 950 rice samples were collected from different Tehran markets. Samples were prepared to extract heavy metals contents in raw, rinsed, soaked by adsorbent and cooked and drained rice states, were determined and measured using wet digestion method . Final concentration of heavy metals in rice samples were analyzed using Inductively Coupled Plasma Optical Emission Spectroscopy according to AOAC International Standard. Batch adsorption experiments were carried out to evaluate the effects of adsorbent-dosage, state of samples and ionic strength of solution on the adsorption of heavy metals onto bio-adsorbent that was simply gathered from nut and homemade wastes .Cadmium contents of samples were completely removed in cooking method, treated by the mixture of specified percentages of CBW and RH. Lead and Nickel contents decreased significantly (p<0.05) in all cooking methods. The findings of current study indicate that Food /Agro waste can be utilized beneficially in treating rice containing heavy metal ions.
Health risk assessment of heavy metals (lead and cadmium) in transgenic corn in Tehran Soha Hatami; Zahra Mousavi; Parisa Ziarati
Biological Environment and Pollution Vol. 2 No. 2 (2022)
Publisher : Association for Scientific Computing, Electronics, and Engineering (ASCEE)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31763/bioenvipo.v2i2.584

Abstract

Corn plant and the products made from corn is one of the major transgenic concerning in the world, and due to public concerns about the presence of heavy metals in this product; the present study investigated the food safety in transgenic corn samples due to the presence of lead and cadmium. Iran has the highest exchange of agricultural products. Five packaged popular brands of raw corn samples and one unpackaged one as the bulk sample were purchased from Tehran markets in 2021, and after confirming transgenicity by quantitative real-time PCR and then wet digestion method. The heavy metal contents in all studied samples were analyzed by inductively coupled plasma spectrometer. Bulk samples had the highest content of lead and cadmium compared to other packaged studied samples. The comparison of lead and cadmium compared to the maximum permissible levels set by the National and international standards revealed that the these toxic heavy metals ‘contents in 100% of studied raw corn samples were higher than the maximum limit. The results of current study indicate that the Lead and Cadmium contents in the studied samples were 18 and 2.7 times higher than the maximum permissible limit (MPL).
Co-Authors Barbara Sawicka Luis Cruz-Rodriguez Sepideh Tajik Soha Hatami Zahra Mousavi