The assessment of certain heavy metals content in table eggs laid in relation to the production systems (organic vs. conventional)

Bologa, M.; Pop, I. M.; Rusu, Cristina Gabriela Radu

doi:10.1016/j.jbiotec.2014.07.244

Cited by 3 publications

(6 citation statements)

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“…In the study of Bologa et al. ( 2014 ), the Cu values in total egg were 1.23–1.34 mg/kg wet weight, comparable to values found in this study. The mean Cu content of egg yolk was higher than that in the egg white for all the strains.…”

Section: Resultssupporting

confidence: 90%

“…The data obtained by the current study (Tables 3 and 4) were inconsistent with the work of Dermilus et al, which reported 6.2 mg/kg in albumen and 43.9 mg/kg in the yolk, indicating that Zn values are higher in egg yolk than white (Demirulus, 2013). Bologa et al (2014) found less Zn, ranging from 1.23 mg/kg wet weight to 1.49 mg/kg wet weight, which may be due to differences in the selected strain, the production systems (organic vs. conventional), or environmental factors such as the water and the feed.…”

Section: Part Of Eggcontrasting

confidence: 99%

“…Cu: As presented in Tables 3 and 4, the highest concentration of Cu was found in the egg yolk of the LSL strain (2.074 mg/kg) and the lowest concentration in the egg white of the Hi-line strain (0.063 mg/kg). In the study of Bologa et al (2014), the Cu values in total egg were 1.23-1.34 mg/kg wet weight, comparable to values found in this study. The mean Cu content of egg yolk was higher than that in the egg white for all the strains.…”

Section: Effect Of Feed and Strain On Micronutrients Concentration In...supporting

confidence: 88%

“…Recently, many studies focused on the productive performance parameters (feed intake, egg production, shell thickness, egg weight, shell weight etc.) of hens among different strains (Ershad, 2005 ; Scheideler et al., 1998 ; Scott & Silversides, 2000 ; Singh et al., 2009 ) and diet or concentration of trace elements of eggs (Abdulkhaliq et al., 2012 ; Ali et al., 2016 ; Bologa et al., 2014 ; Demirulus, 2013 ; Korish & Attia, 2020 ; Uluozlu et al., 2009 ; Vincevica‐Gaile et al., 2013 ; Waegeneers et al., 2009 ). However, there is no study focusing on the impact of laying hens strains on the concentration of micronutrients in the egg.…”

Section: Introductionmentioning

confidence: 99%

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Effect of feed trace elements on eggs of five strains of laying hens and their health risk assessment

Hashemi

Azadi

Saghi

et al. 2023

Veterinary Medicine & Sci

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Background Trace elements are essential for human nutrition, and their deficiencies or excesses are strongly associated with several diseases, such as cardiovascular ones. Objectives The current cross‐sectional study investigated the concentration of essential trace elements (copper, non‐metal selenium, iron, zinc, cobalt and manganese) in eggs and diets of five strains of laying hens. Methods The yolk and albumen were analysed separately, and wet preparation was carried out following inductively coupled plasma–optical emission spectrometry detection. The target hazard quotients (THQs) for the non‐carcinogenic disease were calculated by the United States environmental protection agency (USEPA) method. Results The highest concentrations of selenium, zinc and manganese were found in egg yolks of native hens (0.76, 44.22 and 6.52 mg/kg, respectively). The highest amounts of copper and cobalt were recorded in the egg yolk of Lohman (2.07 and 0.023 mg/kg, respectively). On the other hand, the egg yolk of Bovans contained the highest amount of iron (57.46 mg/kg). Conclusion Overall, the potential health risks were minimal, and the consumption of eggs was generally safe.

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Section: Resultssupporting

confidence: 90%

Section: Part Of Eggcontrasting

confidence: 99%

Section: Effect Of Feed and Strain On Micronutrients Concentration In...supporting

confidence: 88%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Effect of feed trace elements on eggs of five strains of laying hens and their health risk assessment

Hashemi

Azadi

Saghi

et al. 2023

Veterinary Medicine & Sci

View full text Add to dashboard Cite

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“…van Ruth et al used a high‐performance liquid chromatography with diode array detection‐based method to determine carotenoid profiles; in combination with chemometrics, this approach was used to discriminate organic and nonorganic chicken eggs. Another approach as applied by Bologa et al is based on the analysis of the heavy metal content of conventionally and organically produced eggs, finding differences in Pb, Cd, Cu, and Zn contents. However, these studies also showed that the variations within a rearing system are already very high, which makes it difficult or even impossible to find a single marker.…”

Section: Introductionmentioning

confidence: 99%

NMR‐based differentiation of conventionally from organically produced chicken eggs in Germany

Ackermann

Lachenmeier

Kuballa

et al. 2019

Magnetic Reson in Chemistry

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Both the German and European organic food markets are growing fast, and there is also a rising demand for organic chicken eggs. Consumers are willing to pay higher prices for organic eggs produced in an animal‐appropriate environment considering animal welfare. Strict labelling requirements do not prevent chicken eggs from being a subject of food fraud. Conventionally produced (barn/free‐range) eggs can easily be mislabeled as organic eggs. Especially because the demand for organically produced chicken eggs is likely to exceed supply in the future, mislabeling appears to be a realistic scenario. Therefore, there is a need for analytical methods that are suitable to classify eggs as being either conventionally or organically produced. Nuclear magnetic resonance (NMR) spectroscopy in combination with multivariate data analysis is a suitable tool to screen eggs according to the different systems of husbandry. Sample preparation is based on a fat extraction method, which was optimised for application to freeze‐dried egg yolk. Samples were analysed using typical q‐NMR parameters. A nontargeted approach was used for the analysis of the 1H NMR data. Principal component analysis (PCA) was applied followed by a linear discriminant analysis (PCA‐LDA) and Monte Carlo cross‐validation. In total, 344 chicken eggs (214 barn/free‐range eggs and 130 eggs from organic farms), most of them originating from Germany, were used to build and validate the prediction model. The results showed that the prediction model allowed for the correct classification of about 93% of the organic eggs.

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Target-triggered UCNPs/Fe3O4 @PCN-224 assembly for the detection of cadmium ions by upconversion fluorescence and magnetic relaxation switch dual-mode immunosensor

Wang

et al. 2023

Sensors and Actuators B: Chemical

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The assessment of certain heavy metals content in table eggs laid in relation to the production systems (organic vs. conventional)

Cited by 3 publications

References 0 publications

Effect of feed trace elements on eggs of five strains of laying hens and their health risk assessment

Effect of feed trace elements on eggs of five strains of laying hens and their health risk assessment

NMR‐based differentiation of conventionally from organically produced chicken eggs in Germany

Target-triggered UCNPs/Fe3O4 @PCN-224 assembly for the detection of cadmium ions by upconversion fluorescence and magnetic relaxation switch dual-mode immunosensor

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