Contribution of Animal Origin Foods in the Human Diet

The need of better labelling of fats in processed animal origin products is urgent. The lack of information makes it possible to exclude n-3 fatty acids in preparations of foods. The higher fat content, the higher n-6/n-3 ratio seems to be a rule. It is desirable to broaden the labelling into which oils have been used when foods are processed. The dietary balance of n-6 and n-3 fatty acids is important for homeostasis and normal development in humans. The ratio between n-6/n-3 fatty acids suggested to be evolutionary developed is between 1 and 4. The main conclusion is that the fat sources used during processing and preparation of convenient foods have the largest impact on the food FA content and composition. A proposal is therefore that this should be declared on the product label especially the n-3 FA content. It is also of large importance to increase consumption of freshwater fish fed suitable feeds containing n-3 fatty acids in central Europe to enable a generally lower n-6/n-3 ratio in the human diet. Therefore optimizing feeds to freshwater fish in culture is urgent and important.

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A Green HPLC Method for Determination of Nine Sulfonamides in Milk and Beef, and Its Greenness Assessment with Analytical Eco-Scale and Greenness Profile

Journal of AOAC International ◽

10.1093/jaoacint/qsaa006 ◽

2020 ◽

Vol 103 (4) ◽

pp. 1181-1189

Author(s):

Xiaoyun Duan ◽

Xiaofeng Liu ◽

Yue Dong ◽

Jing Yang ◽

Jing Zhang ◽

...

Keyword(s):

High Performance Liquid Chromatography ◽

Liquid Chromatography ◽

Simultaneous Determination ◽

High Performance ◽

Animal Origin ◽

Chromatography Method ◽

Limit Of Quantitation ◽

Liquid Chromatography Method ◽

Animal Origin Foods

Abstract Background Sulfonamides have been widely used in the prevention and clinical treatment of bacterial diseases in livestock and poultry. The use of sulfonamides increases the risk of veterinary drug residues in animal derived foods. The traditional reversed phase liquid chromatography methods for sulfonamides residues detection in animal derived foods have the problem of high consumption of organic solvents. Objective The aim of this study was to establish a green high-performance liquid chromatography method for the detection of sulfonamides residues in different animal-origin foods. Method The sample extraction solutions were purified by the Agela Cleanert PEP-2 cartridge and analyzed by the high-performance liquid chromatography method using ethanol as the green alternative solvent. Results The proposed method was validated in terms of linear range (20–1000 μg/kg), limit of detection (3.0–12.3 μg/kg), limit of quantitation (10–43 μg/kg), accuracy (80.7–101.3%), and repeatability and reproducibility (RSD <5.9% and RSD <8.5% respectively). Conclusions The proposed method is an environmentally friendly, sensitive and reliable high-performance liquid chromatography method for simultaneous determination of sulfonamide residues in animal-origin foods. Highlights In this work, we firstly developed a green high-performance liquid chromatography method for simultaneous determination of the residues of nine sulfonamides in milk and beef with ethanol as the green alternative solvent.

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