List of Articles ساختار شیمیایی

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  1 - Resources and Chemical Structure of Heavy Metals in Soil and Its Effect on Human Health and the Environment
  Hamid Abbasitabar Eisa Solgi Kamran Shayesteh Samar Mortazavi
  Background and Purpose: Soil is one of the most important components of the ecosystem, which is a suitable environment for storing nutrients and performing biological and chemical processes, and as a natural filter by storing and transporting pollutants, reduces their h More

  Background and Purpose: Soil is one of the most important components of the ecosystem, which is a suitable environment for storing nutrients and performing biological and chemical processes, and as a natural filter by storing and transporting pollutants, reduces their harmful effects. The aim of this study was to investigate the sources, chemical structure and health and environmental effects of some heavy metals in the soil.Material and Methodology: The research method was theoretically and using library resources. First, the sources and then the structure and health and environmental effects of heavy metals in the soil were studied.Results: Results show that heavy metals, unlike organic pollutants, are immutable and non-biodegradable and have physiological effects on living organisms and thus are important in low concentrations. Heavy metals are formed naturally in the soil by pedogenic processes. Human factors such as the development of industrial areas, mining waste, use of chemical fertilizers, animal, pesticides, Sewage sludge and irrigation of agricultural lands with sewage, residues resulting from the burning of coal, petrochemical and atmospheric deposition can increase the concentration of these metals and cause soil contamination with heavy metals.Discussion and Conclusion: Soil plays a very important role in providing food for humans and other organisms, and its contamination by heavy metals can have irreversible effects. Adequate knowledge of the concentration, sources, chemical structure and potential health and environmental hazards of heavy metals is essential to prevent pollution and to select the appropriate method for soil remediation. Creating accessible resources for agricultural production and increasing food security is one of the goals of improving contaminated soils. Manuscript profile
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  2 - A comprehensive review on the structure, properties and application of phycocyanin pigment
  R. Safari S. Reyhani Poul Sakineh Yeganeh
  10.30495/jfh.2022.1965125.1370
  This review aims to evaluate the intrinsic properties and different applications of phycocyanin pigment in the food and pharmaceutical industries. In addition, in each section, a detailed history of the research conducted in the field of phycocyanin is presented. Phycoc More

  This review aims to evaluate the intrinsic properties and different applications of phycocyanin pigment in the food and pharmaceutical industries. In addition, in each section, a detailed history of the research conducted in the field of phycocyanin is presented. Phycocyanin is a blue pigment, a light receiver with antioxidant and fluorescent properties in cyanobacteria, and two algae from the genus rhodophytes and cryptophytes. Phycocyanin pigment consists of two relatively similar subunits α and β. The alpha chain contains one phycocyanobilin attached to cysteine 89 and the beta chain contains two phycocyanobilins attached to cysteines 84 and 155. Phycocyanin is commercially produced from spirulina algae (spirulina platensis), in the form of photoautotrophic cultures, and open environments in large ponds or pools in tropical or subtropical areas at the edges of oceans. This pigment can be extracted from the mentioned algae by using different techniques such as enzymatic method, ultrasound, freezing-defrosting, mineral solvent, homogenization, stress and osmotic shock, high hydrostatic pressure, ultracentrifuge, and ultra homogenization. Depending on the extraction conditions, each method has its advantages and disadvantages, but the enzymatic and ultrasound methods are more efficient than other methods. Phycocyanin has many medicinal and therapeutic properties, including anti-cancer and anti-inflammatory; In addition, the positive effect of this pigment on nerve cells, kidneys, and the immune system has been confirmed. Phycocyanin, having three colorings, antioxidant and antimicrobial properties, has the potential to be used in various food formulations, such as yogurt, cheese, ice cream, etc., which have been proven in various research. Manuscript profile