scholarly journals Bee Pollen – Nutritional and Toxicological Aspects

2019 ◽  
Vol 1 (4) ◽  
pp. 41-47
Author(s):  
Katarína Fatrcová-Šramková ◽  
Janka Nôžková

Pollen contains nutritional elements – carbohydrates, proteins, lipids, vitamins, minerals, trace elements. The pollen contains also important amount of polyphenolic compounds, primarily antioxidants. Because the pollen is rich in nutrients, honeybee-collected pollen is recommended as a dietary supplement. The product can be used as dietary supplements to enrich food with valuable nutrients performing important functions in the human body. Pollen is a bee product affected by contaminants of various origins. In addition to important nutrients, it may also contain heavy metals that are harmful to human health. May be contaminated from air and soil by heavy metals and pesticides.

Author(s):  
Mojtaba Arjomandi ◽  
*Hamid Shirkhanloo

Heavy metals are vital and necessary in our daily lives. Moreover, if the amounts of heavy metals are more than the acceptable amounts (mentioned by WHO) in soil, water, and air, indeed, they cause a lot of diseases in human bodies. Therefore, monitoring and measuring the amounts of heavy metals that are arduous and difficult are so important. In this review paper, a lot of studies that have been carried out on the determination and quantification of heavy metals in human bodies, soil, and water are considered. Moreover, the effect of toxicity of each heavy metal on human health is assessed. According to WHO, EPA, NIOSH, ACGIH, and clinical chemistry, the determination of heavy metals such as Cd, Pb, Zn, Hg, Cu, Mn is very important in the human body and Environmental matrixes. 


2014 ◽  
Vol 955-959 ◽  
pp. 1397-1404 ◽  
Author(s):  
Li Na Shi ◽  
Xun Xu ◽  
Xiao Yan Dou ◽  
Xu Dong Zhao

PM2.5 is one of the most important components in air pollution. It is also the focus of the most closely watched at home and abroad. Based on its small size, complex components, and strongenvironmental activity, it can be used as a carrier for chemicals, heavy metals, bacteria, toxins and carcinogens into the body. Then, as a result, it will affect Human Body Health. Heavy metals are important components of PM2.5, and the long-term accumulation of heavy metals in PM2.5 poses a great threat on human health and the environment. This paper reviewed the sources, distribution methods,chemical form, detection methods, disposal way, research progress of heavy metals in PM2.5. As a result, it provided a reference for in-depth study on the future.


2021 ◽  
pp. 88-97
Author(s):  
I. Shumigay ◽  
O. Yermishev ◽  
N. Маnіshеvskа

In recent years, as a result of intense anthropogenic impact, the composition of groundwater has changed markedly. Despite the relatively high protection of groundwater from pollution, the content of pollutants is detected in significant quantities. One of the priority groups of chemical pollution is heavy metals, which belong to an important group of environmental pollutants. Depending on the forms of being in the water, they differ in their chemical and biological activity. Currently, determining the quality of groundwater, identification of trace elements is a topical issue. This article presents the results of research on the content of trace elements in groundwater. Analysis of the content of heavy metals in the wells of Kyiv region during 2020 shows that a significant excess of water pollution by heavy metals is not observed. Taking into account the current MPC, a small excess of iron and zinc content was noted in Volodarskyi district. Heavy metals are known to have mutagenic, toxic effects and affect the intensity of biochemical processes. But the toxicity of trace elements is determined not by their total concentration in water, but by the forms of finding. Therefore, the presence of VM in drinking water samples is highly undesirable, as there will be a constant supply of chronic doses to the human body. As a result, it became necessary to calculate the total pollution of heavy metals, groundwater samples in Kyiv region. In addition, the ecological state of the environment is directly related to changes in the internal human environment. It is the deficiency or excess of certain microelements in drinking water or non-observance of its stable chemical composition in certain areas that from time to time outbreaks of diseases, the cause of which is difficult to establish. Heavy metals that can be found in drinking water are very harmful to human health. The most dangerous Cd, Pb, because on the one hand their man-made accumulation in the environment is quite high, and on the other — these elements have a significant affinity for physiologically important organic compounds and can inhibit the most important metabolic processes, inhibit growth and development. Their long-term effects on the human body can lead to the development of cancer, damage to organs, the nervous system, and in extreme cases, to death, as noted in the publication.


2017 ◽  
Vol 19 (4) ◽  
pp. 592-600 ◽  

In recent years children’s head hair is a biomarker frequently used for monitoring environmental exposure to heavy metals. Blood, plasma, urine and other tissues analysis were the most popular approaches to evaluate the concentrations of trace elements in human body. However, hair sample is easily collected, stored and readily analyzed. As (arsenic), Cd (cadmium), Hg (mercury), Ni (nickel) and Pb (lead) poses a potential threat to humans. The aim of the study is to link the concentrations of heavy metals in children’s scalp hair with the environmental pollution by presenting an overview of the measurements that have been done in 12-year-old children’s scalp hair living at the municipalities of Kifisia and Kryoneri, in relation with trace metals concentrations in the river water, air and tree leaves at the north zone of Kifissos River in Athens, Greece.


2020 ◽  
Vol 10 (1) ◽  
Author(s):  
Ammar Abdulrahman Jairoun ◽  
Moyad Shahwan ◽  
Sa’ed H. Zyoud

Abstract A specific safety concern is the possibility that a dietary supplement could be contaminated with heavy metals. This research was undertaken to investigate the daily exposure levels of heavy metals in dietary supplements available in the UAE and to explore the factors associated with the contamination of dietary supplements with heavy metals. A total of 277 dietary supplement samples were collected from the UAE market and prepared for the analysis of selected heavy metal contamination. Inductively coupled plasma mass spectrometry (ICP-MS) was used to determine the presence of heavy metals. The average daily intake of cadmium was 0.73 μg [95% CI 0.61–0.85], compared to the acceptable daily intake (ADI) of 6 μg; the daily intake of lead was 0.85 μg [95% CI 0.62–1.07], compared to the acceptable daily intake (ADI) of 20 μg; and the daily intake of arsenic was 0.67 μg [95% CI 0.57–0.78], compared to the acceptable daily intake of 10 μg. Although the dietary supplements available in the UAE have low levels of heavy metal contamination, numerous individuals are consuming a number of different dietary supplements every day and thereby may experience a cumulative level of toxic exposure. Dietary supplements formulations (Categories), dosage forms and country of origin are strong determents of heavy metal contamination in dietary supplements products.


2019 ◽  
Vol 10 (2) ◽  
pp. 244-253
Author(s):  
Laila D Abd El-Samee ◽  
Yasser A Hamouda ◽  
Samia M Hashish ◽  
Mosaad A Abdel-Wahhab

This study was conducted to determine heavy metals and trace elements content in tilapia fish collected from three sources in Damietta governorate, Egypt and to evaluate the human health risk due to tilapia consumption. Tilapia samples were collected from two locations in the River Nile stream, tow fish farms and two sluiceways. Health risk assessment was evaluated based on the consumption habits of adult human. The results revealed that all samples vary in elements concentrations. The calculation of human health risk revealed that the consumption of tilapia in the three tested area does not pose any health risk except for Selenium. It could be concluded that consumption of such fish may be a risk for consumers who eat fish more than one time per week. Consequently, precautions should be taken and warning against eating tilapia fish caught from these regions should be announced.


2003 ◽  
Vol 57 (1) ◽  
pp. 24-34 ◽  
Author(s):  
Milos Rajkovic

In drinking water, which is consumed daily, either directly, or with food there is a number of compounds, organic or inorganic, depending on the water type, origin and processing. The presence of these substances, due to their daily consumption, may exert a negative influence on human health and even lead to tragic outcomes.A list of inorganic substances and elements that may be found in water is presented in this paper, together with their permitted concentrations (MAC values) and the consequences they may cause, if present in concentrations higher than those permitted by regulations. Special emphasis is placed on heavy metals, because in most instances, they influence the human body unfavourably.


2021 ◽  
Author(s):  
Derya ÇAY DEMİR

Abstract Aim: The aim of the study is to determine the relationship of some trace elements and heavy metals with lip and oral cavity cancer. Materials And Methods: Blood counts of 21 individuals with lip and oral cavity cancer were compared with those in the control group consisting of 30 volunteer and healthy subjects. Levels of trace elements and heavy metals in the serum (Zn, Cu, Mg, Pb, Mn, Cd, Co and Fe) were determined using Atomic Absorption Spectrophotometer method at YUU Central Research Laboratory (Spectrometer: Thermo Scientific C103500100, China). Findings: In this study, the descriptive statistics and comparison results for Cu, Mn, Mg, Fe, Zn, Co, Pb, Cd were found to be statistically significant (p <0.05). According to these results, Zn, Fe, Mn, Mg and Cu levels which are necessary trace elements for human body were found to be significantly lower in patients than healthy control groups. Cd, Co and Pb levels which are harmful and toxic to human body were found to be significantly higher in patients than healthy control groups (p <0.05). Results: Based on these findings of this first and new study in the literature, it was concluded that, trace elements and heavy metals (Cu, Mn, Mg, Fe, Zn, Co, Pb and Cd) in the lip and oral cavity may affect the etiopathogenesis of the disease.


2021 ◽  
Vol 54 (2C) ◽  
pp. 80-87
Author(s):  
Abbas R. Ali

Geophagy is the eating of non-food earthy matters practice (such as clay), which is performed especially in humans, to augment a scanty or mineral-deficient diet or as part of a cultural tradition. Geophagy, the intentional ingestion of clay or soil, is a prevalent practice among animals and humans, especially is more common in young ages, such as children and among pregnant women with a young age. In spite of some well documented cases, the motivations of this practice and its consequences on the status of health of the consumer are still unclear. This study focused on the source of heavy metals and its health impact because of the importance of the topic in the environmental hazards, especially as this addictive phenomenon may not be well known among families in our societies. During this study, twenty-four samples of marl were collected within the rock sequences of the Fatha Formation in the Kirkuk and Diyala, which are used in eating (mud eating disease) in these regions. The samples were subjected to laboratory studies including chemical analyses, to determine their contents of trace elements. The laboratory analytical data showed that these muds (marl) contain different concentrations of chemical elements such as (Co, Cr, Ni, Cu, and Zn) which are among the heavy toxic elements and harmful to human health. A close look at the analytical data and results of the statistical and environmental factors, it is found that the marl (geophagia) consumption in terms of its content of trace elements, poses health risks to the consumer. However, it is worth mentioning to say that Geophagia practice may contribute large levels of the most beneficial elements such as Ca, Fe, K, Na, Cu, and Zn, supplying in demand mineral nutrients in the human body.


Author(s):  
Manju Mahurpawar

Some heavy metals have bio-importance as trace elements but the biotoxic effects of many of them in human biochemistry are of great concern. Hence, there is a need for proper understanding of mechanism involved, such as the concentrations and oxidation states, which make them harmful. It is also important to know their sources, leaching processes, chemical conversions and their modes of deposition in polluting the environment, which essentially supports life. Literature sources point to the fact that these metals are released into the environment by both natural and anthropogenic means, especially mining and industrial activities, and automobile exhausts. They leach into the underground waters, moving along water pathways and eventually depositing in the aquifer, or are washed away by run-off into surface waters thereby resulting in water and subsequently soil pollution. Poisoning and toxicity in ecosystem occur frequently through exchange and co-ordination mechanisms. When ingested, they form stable biotoxic compounds, thereby mutilating their structures and hindering bioreactions of their functions. This paper reviews certain heavy metals and their impact and biotoxic effects on man.


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