Consumption Of Wheat Grains Research Articles

Export-oriented system of wheat grain clustering according to its intended purpose

The article analyzes the world market for the production and consumption of wheat grain in 2020– 2021. The creation of a new commodity nomenclature of grain, focused on the export strategy for the production and storage of wheat, is substantiated. It is proposed to determine this nomenclature taking into account 16 Critical Quality Indicators, reflecting the factors affecting the storage stability and functional predisposition of grain. In order to develop a clustering methodology, 12 samples of wheat grain, representing the entire range of grain quality characteristics, were selected and evaluated in two main target categories: “storage ability” and “manufacturability”. The derivatography method was used to study the moisture content of the grain, which is the most important physical and chemical property for the indicated target varieties and their application. It is shown that the following three types of moisture are present in the grain: 1 — poorly adsorbed, free moisture, 2 — strongly adsorbed moisture, bound moisture, 3 — intramolecular moisture. Notably, intramolecular moisture is contained in a fairly significant amount. It is proposed to form the suitability of grain for long-term storage by reducing the proportion of intramolecular moisture to values below the critical ones using a special technological operation of conditioning.

Metal(loid)s Spatial Distribution, Accumulation, and Potential Health Risk Assessment in Soil-Wheat Systems near a Pb/Zn Smelter in Henan Province, Central China.

To understand the influence of Pb/Zn smelter on surrounding environment, 110 soil and 62 wheat grain samples (62 paired samples) were collected nearby a Pb/Zn smelter in Jiaozuo City, Henan Province, China. The content and spatial distribution of metal(loid)s in the soil-wheat system, and the potential health risk via consumption of wheat grains were determined. Results showed that the average content of Pb, Cd, As, Cu, Zn, and Ni in soil were 129.16, 4.28, 17.95, 20.43, 79.36, and 9.42 mg/kg, respectively. The content of Cd in almost all soil samples (99.1%) exceeded the national limitation of China (0.6 mg/kg). Spatial distribution analysis indicated that atmospheric deposition might be the main pollution source of Pb, Cd, As, and Zn in soil. In addition, the average content of Pb, Cd, As, Cu, Zn, and Ni in wheat grain were 0.62, 0.35, 0.10, 3.7, 35.77, and 0.15 mg/kg, respectively, with the average Pb and Cd content exceeding the national limitation of China. The average bioaccumulation factor of these metal(loid)s followed the following order: Zn (0.507) > Cu (0.239) > Cd (0.134) > Ni (0.024) > Pb (0.007) > As (0.006). Health risk assessment indicated that the average noncarcinogenic risk of children (6.78) was much higher than that of adults (2.83), and the carcinogenic risk of almost all wheat grain is higher than the acceptable range, with an average value of 2.43 × 10−2. These results indicated that humans who regularly consume these wheat grains might have a serious risk of noncarcinogenic and carcinogenic diseases.

Assimilation of natural Radionuclides in the wheat plant from cultivated soil

The intake of naturally nuclides 238U, 232Th, and 40K by wheat crop from two different fertilization soils of Iraq was studied under natural farm conditions. The overall mean of soil to wheat cereal transfer factors (TF) was studied and observed to be in the range of 0.6 × 10-3 to 0.70 × 10-3 for 238U, 0.11 × 10-3 to 0.13 × 10-3 for 232Th and 0.054 to 0.055 for 40K. The calculated values of TF for wheat grain denote that 40K are the significant radionuclides that are transferred in grain. This evaluation is most important for the production of foodstuffs with low contents of radionuclides. The assimilation of radionuclides by consuming wheat cereals from the farms studied gives a small fraction to the total annual ingestion dose received by a person due to naturally existent radioactivity material in the environment. This study proves that the natural radioactivity and Ingestion effective dose was lower than the safe, which the total of the dose received from 238U and 232Th due to consumption of wheat grains alone from fertilized field 0.056 and 0.045 mSv y-1 from the unfertilized field total ingestion dose, the dose received from 40K due to the consumption from the unfertilized and fertilized field was 0.0102 and 0.0137 respectively. The dose values were less than the limit value of 0.30 mSv y-1. Therefore, the consumption of these foods has no health risks. This process may help to obtain basics on radiological health regulations The activity concentration of natural radionuclides 238U, 232Th, and 40K in fertilized and unfertilized soil and wheat plants growing into is statistically significant at 1% level of significance using an independent t-test.

Effect of biochars on bioaccumulation and human health risks of potentially toxic elements in wheat (Triticum aestivum L.) cultivated on industrially contaminated soil

In the present study, biochars (BCs) derived from naturally grown green waste (Cynodon dactylon L.) were investigated regarding their impacts on bioaccumulation of potentially toxic elements (PTEs), agronomic properties and human health risks of wheat crop cultivated on long-term industrially contaminated soil. Typically, three types of BCs were pyrolyzed at different highest temperature of treatment (HTT), i.e. 400 °C, 600 °C and 800 °C, in a horizontal reactor and applied to the contaminated soil with 2% and 5% (w/w) ratio. The characterization results of the BCs showed that significant positive changes in fundamental characteristics such as porosity, surface area, cation exchange capacity, dissolved organic carbon, phosphorus and potassium have occurred with increased HTT. The analytical results of wheat crop indicated that the BCs applications significantly (p ≤ 0.05) reduced concentration of PTEs in roots (48–95%), shoots (38–91%), leaves (30–91%) and grains (38–93%) of wheat plants. After the BCs application, the agronomic properties were enhanced up to 6–18%, 18–38%, 17–46%, 13–45%, 15–42%, 22–55% and 34–57% for germination rate, shoot length, shoot biomass, spike length, spike biomass, grain biomass and root biomass respectively. The human health risks of PTEs were significantly (p ≤ 0.05) decreased (31–93%) from toxicity level to safe level (except for Mn and Cu), after the BCs application. Based on the current study, the BCs (especially 800BC5) were recommended for reducing bioaccumulation of PTEs in different parts of the wheat plant, increasing growth and yield of wheat crop and decreasing human health risks via consumption of wheat grains.

Effectiveness of Toxicity Characteristics Leaching Procedure for Assessing Metal Hazards of Polluted Soils in Relation to Human Health

ABSTRACTIn view of scarcity of information, effectiveness of toxicity characteristics leaching procedure (TCLP) in assessing metal hazards of polluted soils was evaluated in relation to human health. Total metal content in the soils studied were 1657 ± 2335 mg kg−1 for Zn, 351 ± 180 mg kg−1 for Cu, 166 ± 79.9 mg kg−1 for Ni, 249 ± 269 mg kg−1 for Pb and 18.6 ± 23.2 mg kg−1 for Cd. The TCLP requires a buffering of acidic leaching extraction based on the soil reaction. The TCLP extractable (reagent 1) metal content was varied as 177 ± 376 mg kg−1 for Zn, 10.9 ± 28.5 mg kg−1 for Cu, 23.1 ± 67.2 mg kg−1 for Ni, 2.79 ± 10.3 mg kg−1 for Pb and 4.92 ± 16.3 mg kg−1 for Cd across the experimental soils. Reagent 2 extractable Zn, Cu, Ni, Pb and Cd were recorded as 136 ± 364, 3.16 ± 1.79, 1.49 ± 2.73, 0.57 ± 2.20 and 1.95 ± 6.92 mg kg−1, respectively. In case of spinach, the values of hazard quotient (HQ) varied from 0.055 to 0.972, 0.002 to 0.019, 0.008 to 0.181, 0.066 to 5.489 and 0.044 to 11.32 in respect of Zn, Cu, Ni, Pb and Cd, respectively. The ranges of HQ for intake of Zn, Cu, Ni, Pb and Cd through consumption of wheat grain were 0.36–1.88, 0.02–0.12, 0.05–0.80, 0.13–1.21 and 0.10–59.5, respectively. While comparing the effectiveness of assessing metal hazard of TCLP with that assessed in terms of HQ, it is clear that in some soil samples the critical value of HQ (>0.5) exceeded for Pb (spinach), whereas TCLP extractable Pb content in those soils were within the safe limit i.e. <50 mg kg−1. It appears that TCLP method is not only useful for judging the ecological risk of metal polluted soil but also assessing the suitability of soil for crop production, provided permissible limit of TCLP should be revised.

МІСЦЕ ТА РОЛЬ УКРАЇНИ НА СВІТОВОМУ РИНКУ ПШЕНИЦІ

Introduction. Wheat production is a leading industry in both the agricultural sector and the public sector as a whole. This is due to his crucial role in ensuring the food security of the country. Considering the leading role of wheat grain in the list of Ukrainian export commodities, there is a need to find a compromise between ensuring the country's food security and increasing the presence of these Ukrainian products on the global market. The purpose of the article is assessment of the place and determination of the role of Ukrainian producers in the world wheat grain market, identification of factors that impede the expansion of the presence of relevant domestic products in the global market. Results. The analysis of world production, final stocks and consumption of wheat grain has allowed to determine the increase of production volumes with excess of consumption rates, which led to price stabilization. An analysis of the volume and structure of world wheat grain exports has made it possible to determine that Ukraine is in the top ten. The largest importers of Ukrainian wheat in Europe are Italy and Spain; Indonesia, Bangladesh and Thailand in Asia. Asia in the overall structure in the 2014-2018 average had about 49 %. Africa ranks second after Asia, with a volume of 28 %, with half imported by Egypt. The prospects for the markets of Egypt, Morocco and Tunisia for export of Ukrainian grain have been substantiated, taking into account trends in population growth, complications of natural conditions for cultivation and low transportation costs. The cost forecast of 1 wheat metric ton for the future is made. The grain market segment occupied by Ukraine according to the quality of its products is considered. The price and quality of imported and exported wheat grain in Ukraine are analyzed. The necessity of increasing the volume of mineral fertilizers application to increase the yield to prove the problem of these disproportions has been proved. Conclusions. Quality of products will become a key factor of competitiveness in the world market of wheat production in the near future. North African countries – Egypt, Morocco and Tunisia – are a promising direction for expanding global markets for Ukrainian wheat. The biggest problem for domestic producers of wheat grain is its poor quality in many parameters. To improve the quality, it is necessary to significantly increase the amount of application of minimal fertilizers. Keywords: wheat grain, world market, production, consumption, final stocks, forecast, slowdown, export, price, quality, fertilizers.

Assessing equilibria of organo-arsenic complexes and predicting uptake of arsenic by wheat grain from organic matter amended soils

In view of limited information, a laboratory experiment was conducted to study the stability of organo-arsenic complexes as affected by competing anions i.e. phosphate, nitrate and sulphate. For this purpose, humic acid (HA) and fulvic acid (FA) were extracted from farmyard manure (FYM), vermicompost (VC), sugarcane bagasse (SB) and soil. A pot experiment was also conducted with 4 levels each of arsenic (As) (10, 20, 30 and 40 mg kg−1) and amendments (no amendment, FYM, VC and SB at the rate of 10 t ha−1 each). Results indicate that stability of FA extracted from sugarcane bagasse have the highest stability constant (log K) as 9.77 and the corresponding mole ratio (x) value of 1.51. The phosphate was the most effective in replacing As from organo-As complexes followed by sulphate and nitrate. Under pot culture study, As content in wheat grain was the lowest in sugarcane bagasse amended soil followed by FYM and VC at all levels of As application. Solubility-free ion activity model was most effective in predicting As uptake by wheat grain based on Olsen extractable As, pH and Walkley & Black organic C. Efficacy of organic amendments in reducing health hazard for intake of As through consumption of wheat grain grown on contaminated soil was also reflected in the values of hazard quotient (HQ).

Effect of brewery spent diatomite sludge on trace metal availability in soil and uptake by wheat crop, and trace metal risk on human health through the consumption of wheat grain

Soil plays a crucial role in food safety as it determines the composition of food at the beginning of the food chain. However, the quality of soil resources in terms of their potential impact on human health caused by harmful elements is poorly understood in Ethiopia due to lack of reliable and appropriate experimental data. In this study, a field experiment was conducted to evaluate trace metal accumulation in soils amended with brewery spent diatomite sludge (BSDS) in comparison to control, recommended inorganic fertilizers (RIF) and integrated BSDS & RIF (BSDS:RIF). Trace metals uptake by wheat crop and the degree of soil contamination, and human health risk were investigated. BSDS application significantly increased the concentration of trace metals (Cu, Zn, Pb and Ni) in soil compared to that in the control, the RIF, and BSDS:RIF applications. It also significantly increased the concentration of Cu, Zn, Pb and Ni in the wheat grain compared to that in the control and the RIF, but the increase was not significantly different from that in BSDS:RIF amendment. All trace metal concentrations in soil and wheat grain (except Pb in wheat grain) were below the maximum permissible limits in some European countries of agricultural soils, and the maximum permissible limit of FAO/WHO. The degree of soil contamination from each of the treatments was below the maximum acceptable degree of contamination. The Health Risk Index (HRI) was <1 for all metals in all treatments. Thus, we conclude that consumption of wheat grain grown on soils amended with BSDS and BSDS:RIF has no human risks and has low likelihood of human exposure to trace metals.

Heavy metal contamination in soil, food crops and associated health risks for residents of Ropar wetland, Punjab, India and its environs

In the present study, an assessment of heavy metal content in soil and food crops (wheat, rice, maize grains and mustard seeds) and associated health risks was carried out for residents of Ropar wetland and its environs. All the soil samples had high cadmium and cobalt contents, whereas, all crop samples had high contents of cobalt and lead. Bioconcentration factor (BCF) analysis indicated that rice grains act as hyper-accumulators of chromium (BCF = 17.98) and copper (BCF = 10.91), whereas, maize grains act as hyper-accumulators of copper (BCF = 30.43). One-way ANOVA suggested that heavy metal content in food crops varied significantly at p ≤ 0.05 for different sites, indicating anthropogenic contribution of heavy metals in agricultural fields. Dietary intake of cobalt via all food crops posed higher non-cancer health risk to residents in comparison to other heavy metals. Chromium posed highest cancer risk through consumption of wheat grains, being staple diet in study area.

Concentration of Heavy Metals in Soil and Staple Crops and the Associated Health Risk

Background & Aims of the Study: The main objectives of the current research were (1) to study the extent of soil pollution by heavy metals (Ag, Cd, Cr, Cu, Mn, Ni, Pb, Zn, Ba and Li) in sampling locations (2) to investigate the extent of heavy metal pollution and soil to plant transfer of these elements in wheat and barley (3) to study the health risk of heavy metals via consumption of wheat grains for adults and children.

Distribution, transfer, and health risks of polycyclic aromatic hydrocarbons (PAHs) in soil-wheat systems of Henan Province, a typical agriculture province of China

In order to investigate the distribution, transfer, and human health risks of polycyclic aromatic hydrocarbons (PAHs) in the soil-wheat systems, soil samples from 20 farmlands and corresponding wheat tissues were collected from selected regions of Henan Province in June 2013 and were analyzed to estimate the concentration of PAHs. The total concentrations of 15 PAHs (∑15 PAHs) in soils from Henan Province varied from 6.91 to 72.4ng/g. Moreover, two-ring to three-ring PAHs (1.59-29.1ng/g) were the major species in soils, occupying 56.2% of total PAHs. Principal component analysis (PCA)-multiple linear regression (MLR) revealed that fossil fuel burning dominated the input of PAHs in agricultural soils of Henan Province. The range of ∑15 PAHs concentrations in wheat tissues was 13.9-50.9ng/g, which decreased along the root-straw-grain. Positive correlation among PAHs of soil and wheat tissues showed that PAHs in wheat mainly came from soil and then migrated along root-straw-grain. Moreover, PAHs were accumulated highest in root and lowest in grain. Two-ring to three-ring PAHs were easier to transfer from soil to wheat than five-ring to six-ring PAHs. Consumption of wheat grain created potential risk of cancer in Henan Province.

Responses of Wheat Yield, Macro- and Micro-Nutrients, and Heavy Metals in Soil and Wheat following the Application of Manure Compost on the North China Plain.

The recycling of livestock manure in cropping systems is considered to enhance soil fertility and crop productivity. However, there have been no systematic long-term studies of the effects of manure application on soil and crop macro- and micro-nutrients, heavy metals, and crop yields in China, despite their great importance for sustainable crop production and food safety. Thus, we conducted field experiments in a typical cereal crop production area of the North China Plain to investigate the effects of compost manure application rates on wheat yield, as well as on the macro-/micro-nutrients and heavy metals contents of soil and wheat. We found that compost application increased the soil total N and the available K, Fe, Zn, and Mn concentrations, whereas the available P in soil was not affected, and the available Cu decreased. In general, compost application had no significant effects on the grain yield, biomass, and harvest index of winter wheat. However, during 2012 and 2013, the N concentration decreased by 9% and 18% in straw, and by 16% and 12% in grain, respectively. With compost application, the straw P concentration only increased in 2012 but the grain P generally increased, while the straw K concentration tended to decrease and the grain K concentration increased in 2013. Compost application generally increased the Fe and Zn concentrations in straw and grain, whereas the Cu and Mn concentrations decreased significantly compared with the control. The heavy metal concentrations increased at some compost application rates, but they were still within the safe range. The balances of the macro-and micro-nutrients indicated that the removal of nutrients by wheat was compensated for by the addition of compost, whereas the level of N decreased without the application of compost. The daily intake levels of micronutrients via the consumption of wheat grain were still lower than the recommended levels when sheep manure compost was applied, except for that of Mn.

Effectiveness and persistence of cinnamic aldehyde as an antifeedant on rats under storage conditions

The house rat, Rattus rattus (Linnaeus), is responsible for causing severe damage in outdoor commercial grain stores where rodent proofing is not possible. Rodenticides are the preferred option for preventing rodent attacks. However, secondary poisoning and development of bait shyness and resistance among rodents after exposure to toxic chemicals has increased the search for new, safe, ecofriendly and effective control methods, which can prevent damage for a long duration. In the present study, the effectiveness and persistence of cinnamic aldehyde as an antifeedant against R. rattus were evaluated. Cinnamic aldehyde treated bait at 5% concentration was effective as an antifeedant and secondary repellent against R. rattus in bi-choice feeding tests. The antifeedant effect was retained for at least 14 days after treatment. There was no significant difference between consumption of treated and untreated bait during the first four hours of exposure of rats under bi-choice feeding tests, indicating absence of a primary repellent effect of cinnamic aldehyde. Feeding bait mixed with 5% cinnamic aldehyde continuously for 27 days in bi-choice feeding tests revealed the persistence of the antifeedant effect. This study demonstrated that 5% cinnamic aldehyde can be used under field conditions to prevent the damage caused by house rats for long durations. A formulation of 5% cinnamic aldehyde containing sodium bicarbonate as an emulsifier prevented rodent damage in terms of consumption of wheat grains, number of cuts on bags, quantity of grains spilled from bags cut by rats and percent damage due to rat urine under simulated storage conditions in laboratory pens for durations up to the experimental period of 15 days. Study of feeding behaviour in feed scale consumption monitoring also confirmed the secondary repellent effect of cinnamic aldehyde against the house rat. Our results indicate that the sodium bicarbonate emulsified formulation of 5% cinnamic aldehyde has the potential to protect stored products from rodent damage in a manner that is effective, persistent and environmentally acceptable.

Arsenic, copper, and zinc contamination in soil and wheat during coal mining, with assessment of health risks for the inhabitants of Huaibei, China

Field studies were conducted to investigate arsenic (As), copper (Cu), and zinc (Zn) contamination in agricultural soils and wheat crops at two areas in Huaibei, China. Area A is in the proximity of Shuoli coal mine. In area B, three coal mines and a coal cleaning plant were distributed. The potential health risk of As, Cu, and Zn exposure to the local inhabitants through consumption of wheat grains was also estimated. The results showed that significantly higher (p<0.05) concentrations of As, Cu, and Zn were found in soils collected from area B than in those from area A. Arsenic concentrations in wheat sampled from area A were negatively correlated with the distance from the coal mine (p<0.001). Concentrations of Cu and Zn in wheat seedlings and grains collected from area B were significantly higher (p<0.05) than in those collected from area A, with the exception of Zn in wheat seedlings. Concentrations of Cu and Zn in most wheat grain samples were above the permissible limits of Cu and Zn in edible plants set by the Food and Agriculture Organization/World Health Organization. The hazard index of aggregate risk through consumption of wheat grains was 2.3-2.4 for rural inhabitants and 1.4-1.5 for urban inhabitants. The average intake of inorganic As for rural inhabitants in Huaibei was above 10 μg day(-1). These findings indicated that the inhabitants around the coal mine are experiencing a significant potential health risk due to the consumption of locally grown wheat.

The function of constructed wetland in reducing the risk of heavy metals on human health

Irrigation with polluted water from the upper Yellow River (YR) channel of Northwest China has resulted in agricultural soil being contaminated by heavy metals (HMs). This causes major concerns due to the potential health risk to the residents in this area. The present study aims to assess the efficiency of constructed wetland (CW) in reducing the heavy metal contamination in irrigation water and food crops, thus in reduction of potential health risk to the residents. The associated risk was assessed using hazard quotient (HQ) and hazard index (HI). The results showed a potential health risk to inhabitants via consumption of wheat grain irrigated with untreated water from YR. However CW could greatly reduce the human health risk of HMs contamination to local residents through significantly decreasing the concentrations of HMs in wheat grain. In theory, the reduction rate of this risk reached 35.19% for different exposure populations. Therefore, CW can be used as a system to pre-treat irrigation water and protect the residents from the potential HMs toxicity.

Uptake and distribution of natural radioactivity in wheat plants from soil

The uptake of naturally occurring uranium, thorium, radium and potassium by wheat plant from two morphologically different soils of India was studied under natural field conditions. The soil to wheat grain transfer factors (TF) were calculated and observed to be in the range of 4.0 × 10 −4 to 2.1 × 10 −3 for 238U, 6.0 × 10 −3 to 2.4 × 10 −2 for 232Th, 9.0 × 10 −3 to 1.6 × 10 −2 for 226Ra and 0.14–3.1 for 40K. Observed ratios (OR) of radionuclides with respect to calcium have been calculated to explain nearly comparable TF values in spite of differences in soil concentration of the different fields. They also give an idea about the discrimination exhibited by the plant in uptake of essential and nonessential elements. The availability of calcium and potassium in soil for uptake affects the uranium, thorium and radium content of the plant. The other soil factors such as illite clays of alluvial soil which trap potassium in its crystal lattice and phosphates which form insoluble compounds with thorium are seen to reduce their availability to plants. A major percentage (54–75%) of total 238U, 232Th and 226Ra activity in the plant is concentrated in the roots and only about 1–2% was distributed in the grains, whereas about 57% of 40K activity accumulated in the shoots and 16% in the grains. The intake of radionuclides by consumption of wheat grains from the fields studied contributes a small fraction to the total annual ingestion dose received by man due to naturally existing radioactivity in the environment.