scholarly journals Comparative Effects of Organic and Conventional Cropping Systems on Trace Elements Contents in Vegetable Brassicaceae: Risk Assessment

2021 ◽  
Vol 11 (2) ◽  
pp. 707
Author(s):  
Fernando Cámara-Martos ◽  
Jesús Sevillano-Morales ◽  
Luis Rubio-Pedraza ◽  
Jesús Bonilla-Herrera ◽  
Antonio de Haro-Bailón
Keyword(s):  
Trace Elements ◽  
Organic Agriculture ◽  
Metal Content ◽  
Cropping Systems ◽  
Sinapis Alba ◽  
Soil Characteristics ◽  
Inorganic Elements ◽  
Inorganic Element ◽  
Dietary Reference Intakes ◽  
Brassicaceae Family

Genotypes selected from 3 plant species (Brassica rapa, Eruca vesicaria and Sinapis alba) belonging to the Brassicaceae family were chosen to compare the concentrations of 9 inorganic elements (Cd, Co, Cr, Cu, Fe, Ni, Mn, Pb and Zn) in these varieties, that were grown under both conventional and organic conditions during two agricultural seasons (2018/2019 and 2019/2020) on two different experimental farms (Farm I and Farm II). We found that, together with agriculture practices, the inorganic element concentrations in Brassicas depended on many other factors, including soil characteristics. However, there were no conclusive results indicating a lower heavy metal content or a higher nutritionally beneficial trace elements content in vegetables grown under organic agriculture. Finally, a probabilistic assessment (@Risk) derived from the consumption of 150–200 g of these vegetables showed that organic Brassicas fulfill in comparison with the conventional ones, similar Dietary Reference Intakes (DRI) percentages for Co, Cr, Cu, Fe, Mn and Zn. Regarding heavy metals (Cd, Ni and Pb), we only found slight differences (mainly in the case of Pb) in the Tolerable Intakes (TI) between both cropping systems.

Trace element intake and dietary status of nuts consumed in Pakistan: study using INAA

2007 ◽  
Vol 95 (4) ◽  
Author(s):  
Shahida Waheed ◽  
N. Siddique ◽  
A. Rahman
Keyword(s):  
Cardiovascular Disease ◽  
Trace Elements ◽  
Neutron Activation Analysis ◽  
Toxic Elements ◽  
Inorganic Elements ◽  
Inorganic Element ◽  
Low Concentrations ◽  
Iron And Calcium ◽  
Prevention Of Cardiovascular Disease

Five nuts, namely almond, cashew nuts, peanuts, pine nuts and pistachio, commonly consumed in Pakistan, were analyzed for their inorganic element contents. Instrumental neutron activation analysis (INAA) methodology, using different irradiation, cooling and counting protocols, was adopted to determine Al, Br, Ca, Cl, Co, Cs, Eu, Fe, Hg, K, La, Mg, Mn, Mo, Na, Rb, Sc, Se, Sr and Zn. The investigated nuts were found to contain substantial amounts of Ca, Cl, Fe, Mg, K, Na and Zn. Dietary intake of the essential inorganic elements present in these nuts, as compared to the recommended dietary allowance, has also been calculated. This has further substantiated the nutrient role of nuts in the prevention of cardiovascular disease, as in addition to their established efficacy in improving the lipid profile, they are a rich source of cardioprotective trace elements such as magnesium, zinc, iron and calcium. Toxic elements were present in very low concentrations in nuts.

scholarly journals The myth of organic agriculture

2009 ◽  
Vol 45 (No. 2) ◽  
pp. 39-48 ◽  
Author(s):  
Z. Pacanoski
Keyword(s):  
Organic Agriculture ◽  
Cropping Systems ◽  
Integrated Systems ◽  
Agricultural System ◽  
Environmentally Sustainable ◽  
Negative Impacts ◽  
Safe Food

Although many people are convinced of the superiority of organic agriculture in any form, there are many negative aspects that follow this type of agricultural system. The productivity of organic cropping systems is considerably lower than that of conventional or integrated systems and leads to less land being available for non-agricultural uses such as wildlife habitats, has greater negative impacts on the environment, and reduced sustainability. The absence of synthetic fertilisers or pesticides does not necessarily lead to an ability to produce healthy and safe food in an environmentally sustainable manner.

scholarly journals Features of accumulation of inorganic elements in seeds of white mustard (Sinapis alba L.) and black mustard (Brassica nigra L.)

2016 ◽  
Vol 0 (4(33)) ◽  
pp. 71-75
Author(s):  
О. І. Рудник-Іващенко ◽  
Л. М. Михальська ◽  
В. В. Швартау
Keyword(s):  
Sinapis Alba ◽  
Brassica Nigra ◽  
Inorganic Elements ◽  
White Mustard ◽  
Sinapis Alba L ◽  
Black Mustard

scholarly journals Levels of Trace Elements and Rare Earth Elements in Honey From Jordan

2021 ◽  
Author(s):  
Yahya R Tahboub ◽  
Abd Al-Majeed A. Al-Ghzawi ◽  
Shaker S Al-Zayadneh ◽  
Mohammad S AlGhotani
Keyword(s):  
Trace Elements ◽  
Rare Earth ◽  
Rare Earth Elements ◽  
Inductively Coupled Plasma ◽  
Metal Content ◽  
Human Consumption ◽  
Total Metal Content ◽  
Inductively Coupled ◽  
Total Metal ◽  
Plasma Mass Spectrometry

Abstract Honey is a common sweetener in the Jordanian diet with annual consumption of about one thousand tons, two-third of them are imported. It is believed that the elemental profile of honey is an indicator of safety and origin. In the literature, there is a lack of studies concerning levels of trace elements in honey in Jordan. A total 49 elements including 18 rare earth elements (REEs) were analyzed by inductively coupled plasma-mass spectrometry (ICP-MS) in mono-floral, and multi-floral imported honey samples, and multi-floral local samples. Regarding mono-floral samples, Black forest samples has the highest total metal content, while Acasia has the lowest total metal content. Local multi-floral honey has the largest Sr, and total REEs levels, while it has the lowest Mn levels. Very low levels of toxic elements were found in all samples, indicating the safety of honey in Jordan for human consumption. Results of this study showed that advanced statistical models are required to discriminate between multi-floral imported and local honey.

scholarly journals Empower Innovations in Routine Soil Testing

Agronomy ◽  
2022 ◽  
Vol 12 (1) ◽  
pp. 191
Author(s):  
Jan Adriaan Reijneveld ◽  
Martijn Jasper van Oostrum ◽  
Karst Michiel Brolsma ◽  
Dale Fletcher ◽  
Oene Oenema
Keyword(s):  
Broad Spectrum ◽  
Near Infrared ◽  
Cropping Systems ◽  
Field Trials ◽  
Soil Characteristics ◽  
Biological Characteristics ◽  
Soil Testing ◽  
Extraction Technique ◽  
Soil Tests ◽  
Physical Chemical

Conventional soil tests are commonly used to assess single soil characteristics. Thus, many different tests are needed for a full soil fertility/soil quality assessment, which is laborious and expensive. New broad-spectrum soil tests offer the potential to assess many soil characteristics quickly, but often face challenges with calibration, validation, and acceptance in practice. Here, we describe the results of a 20 year research program aimed at overcoming the aforementioned challenges. A three-step approach was applied: (1) selecting and establishing two contrasting rapid broad-spectrum soil tests, (2) relating the results of these new tests to the results of conventional soil tests for a wide variety of soils, and (3) validating the results of the new soil tests through field trials and communicating the results. We selected Near Infrared Spectroscopy (NIRS) and multi-nutrient 0.01 M CaCl2 extraction (1:10 soil to solution ratio; w/v) as broad-spectrum techniques. NIRS was extensively calibrated and validated for the physical, chemical, and biological characteristics of soil. The CaCl2 extraction technique was extensively calibrated and validated for ‘plant available’ nutrients, often in combination with the results of NIRS. The results indicate that the accuracy of NIRS determinations is high for SOM, clay, SOC, ECEC, Ca-CEC, N-total, sand, and inorganic-C (R2 ≥ 0.95) and good for pH, Mg-CEC, and S-total (R2 ≥ 0.90). The combination of the CaCl2 extraction technique and NIRS gave results that related well (R2 > 0.80) to the results of conventional soil tests for P, K, Mg, Na, Mn, Cu, Co, and pH. In conclusion, the three-step approach has revolutionized soil testing in The Netherlands. These two broad-spectrum soil tests have improved soil testing; have contributed to increased insights into the physical, chemical, and biological characteristics of soil; and have thereby led to more sustainable soil management and cropping systems.

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