جستجوی مقالات مرتبط با کلیدواژه « Food Chain » در نشریات گروه « پزشکی »

There are many anthropogenic activities that have caused the accumulation of potentially toxic metals (e.g., lead, cadmium, chromium, nickel, arsenic, cobalt, and mercury) in the environment. Lead (Pb) is known as a very toxic and non-biodegradable element that has no metabolic function in living creatures. It can be easily taken up and transferred within plant tissues; consequently, it can easily enter the food chain, causing phytotoxicity, which in turn through different biochemical and enzymatic reactions, can result in severe threats to public health. After entering soil and sediments, Pb may be diffused among soil components and associated with them through different geochemical fractions, which determine the final fate of Pb in terms of bioavailability and uptake by plants. Metal bioavailability in soils is largely dependent on the soil and plant properties and interactions with other elements. In spite of the fact that there are numerous studies on the influence of heavy metals on public health but there are limited studies that consider the role of the soil-plant chain on the final fate of potentially toxic metals in respect to threat the public health. This manuscript defines a joint challenge between agricultural and medical sciences and shows that the soil (as the base of agriculture) affects human health in a variety of ways, with human health being linked to the health of the soil.

We aimed to conduct a meta-analysis on the concentration of potentially harmful elements (PHEs) in carrots and potatoes irrigated by wastewater and estimate non-carcinogenic health risks among adult and children consumers.

The health risk of PHEs concentration, including Pb, Cd, total Cr, Ni, Zn, Cu, and Fe, in the edible parts of carrot and potato irrigated by wastewater was investigated by a meta-analysis using a random-effects model (REM). Accordingly, the related articles were screened from international databases such as Scopus, Medline, and Embase.

The meta-analysis of 32 papers (38 studies) revealed that the rank order of the most accumulated PHEs in potato was Fe (86.54 mg/kg wet weight) > Zn (30.9 mg/kg wet weight) > Cu (13.7 mg/kg wet weight) > Ni (8.42 mg/kg wet weight) > Pb (5.56 mg/kg wet weight) > Cr (3.45 mg/kg wet weight) > Cd (0.58 mg/kg wet weight). This ranking for carrot was Fe (43.36 mg/kg wet weight) > Zn (36.29 mg/kg wet weight) > Ni (13.49 mg/kg wet weight) > Cu (9.79 mg/kg wet weight) > Pb (1.84 mg/kg wet weight) > Cr (1.05 mg/kg wet weight) > Cd (0.28 mg/kg wet weight). Total hazard quotient (THQ) of PHEs was higher than 1 for potato and carrot; its rank order for potato and carrot was Cu > Pb > Cd > Ni > Fe > Zn > Cr and Cd > Pb > Cu > Ni > Fe > Zn > Cr, respectively. The Cd, Pb, and Cu had also a considerable role for consumer health risk.

According to the results, continuous monitor and control of wastewater treatment plants are necessary.

This article reviews the role and importance of food systems during the COVID-19 outbreak, the impact of this pandemic on the food industry and chain, and examining the methods and possibilities of using cold plasma technology to deal with this pandemic. Since food plays an essential role in human health as an integral part of human life, food safety is critical in such cases. It is essential to adopt practical strategies in controlling the COVID-19 crisis. In the current situation, several methods are used to disinfect and control the spread of disease, some of which are ineffective and can also have problems and limitations. Therefore, emerging technologies such as cold plasma (CP) technology can help facilitate the control process and reduce pandemics. The capabilities of this method are disinfection of food, equipment, production surfaces, and indoor with poorly ventilated spaces of SARS‐CoV‐2 through aerosol microdroplets, which can remain in the air for a long time; such as public transportation, production lines, and restaurants where the possibility of transmitting the SARS‐CoV‐2 is high. On the one hand, this review summarizes all available data related to cold plasma technology as an emerging technology to inactivate SARS‐CoV‐2. It then gives us a brief explanation of the role and importance of the food industry and food supply chain during the pandemic.

Concerns are mounting over the health risks associated with the use of harmful pesticides to control crop pests. In this study, the salad vegetables and soil samples from three farms in Lagos, Nigeria were evaluated for organochlorine pesticide residue concentrations using gas chromatography-mass spectrometry (GC-MS). Eighteen organochlorine pesticides were detected in the vegetable and soil samples. In Idi-Araba farm, α-BHC had the highest concentration (0.06±0.07 mg/kg) in lettuce shoots, Endosulfan I had the highest concentration (0.29±0.26 mg/kg) in spring onion. P, P-DDE and L-cyhalothrin had the highest concentrations (0.08±0.03 and 0.08±0.08 mg/kg, respectively) in spinach shoots. In Tejuosho farm, L-cyhalothrin, PF-38, and chlorothalonil had the highest concentrations (0.50±0.71, 0.13±0.07, and 0.03±0.01 mg/kg, respectively) in lettuce shoots, spring onions, and spinach, respectively. In Alapere farm, Endosulfan I had the highest concentration (0.03±0.02 mg/kg) in lettuce shoots, Aldrin had the highest concentration (0.02±0.01 mg/kg) in spring onion shoots, and L-cyhalothrin had the highest concentration (0.04±0.05 mg/kg) in spinach shoots. The concentrations of these pesticides were higher than the maximum residual limit prescribed by the European Union (EU) Commission. Moreover, the hazard index (HI) calculated for spring onion and spinach from Idi-Araba farm and lettuce from Tejuosho farm exceeded one (HI>1). These results may be a reflection of what obtains in other countries where harmful pesticides are still being used. Therefore, governments and stakeholders should raise awareness to discourage farmers from the use of organochlorines and other harmful pesticides.

Evaluation on the toxicity of two mainly contaminant heavy metals, cadmium (Cd) and lead (Pb) through the food chain was the aim of this study.
A total number of 270 healthy common carp (4±1.14 g) in April, 2015 transported to the Khatam Alanbia University of Technology, Behbahan, Iran. Fishes were divided into three groups and transferred to the 20 L aquaria each containing 30 juveniles. The first group (control) fed by metal-free Artemia fransiscan anauplii throughout the experiment. The second and third groups were feeding by Cd and Pb (1.5 mg/L free ion) contaminated nauplia, respectively. The experimental study was carried out for three weeks and sampling was done in 4th, 7th, 14th and 21st days. Finally, the alterations in plasma biochemical responses were determined.
Alanine aminotransferase and aspartate aminotransferase activities increased in response to feeding Pb-contaminated nauplia. Creatine phosphokinase activity showed significant increase in fourth day about both Cd and Pb and at the end of experiment only in Cd treatment (P It seems Pb had a greater toxicity than Cd through the food chain and it may be due to its more trophic transfer than Cd.