HPLC- Highlights Melamine Contamination in Commercial Citrus Juices

New Study Highlights Melamine Contamination in Commercial Citrus Juices

Author：JIANGXI AIYI HI-TECH CO., LTD. Click： Time：2025-03-06 17:01:42

A recent joint study conducted by Shiraz University of Medical Sciences, Iran’s Ministry of Health and Medical Education, and Tehran University of Medical Sciences has revealed alarming findings about melamine contamination in commercial citrus juices. The research aimed to evaluate melamine levels in popular citrus-based juices and assess the potential dietary exposure among different demographic groups.

Study Overview

The study focused on orange and lemon juices from five leading commercial brands. The researchers employed High-Performance Liquid Chromatography (HPLC) to accurately measure melamine concentrations. Samples were randomly selected from various brands and packaging types, with the most popular 280 ml containers chosen to represent common consumer preferences.

Melamine Contamination Risks

Melamine, a nitrogen-rich crystalline compound widely used in plastics, coatings, and adhesives, poses significant health risks when ingested. It can leach into food products through packaging materials, pesticides, or contaminated water. Long-term exposure to melamine has been linked to kidney stones, renal failure, and reproductive toxicity.

Key Findings

The study found that orange juice contained higher melamine levels than lemon juice, with significant variations across brands. The type of packaging played a critical role, with cardboard packaging showing the highest melamine concentrations due to possible migration from adhesives and coatings. In contrast, can packaging exhibited the lowest contamination levels, likely due to its protective metal structure.

Public Health Implications

Although no direct health risks were calculated for vulnerable groups such as children and the elderly, the researchers emphasized the importance of regular monitoring and stricter regulations to limit melamine contamination in food products. These findings highlight the urgent need for manufacturers to adopt safer packaging materials and improve quality control processes.

This study underscores the critical role of analytical instruments like HPLC in ensuring food safety and protecting public health from harmful contaminants.

References

1. Rashedinia, M.; Akbari-Adergani, B.; Shavali-Gilani, P.; et al. Concentration and Health Risk Assessment of Melamine in Commercial Citrus Juices. Food Chem. X 2025, 26, 102254. DOI: 10.1016/j.fochx.2025.102254

2. Kowalska, M.; Konopska, J.; Feszterová, M.; Zbikowska, A.; Kowalska, B. Quality Assessment of Natural Juices and Consumer Preferences in the Range of Citrus Fruit Juices. Appl. Sci. 2023, 13 (2), 765. DOI: 10.3390/app13020765

3. Önen, R. Characteristic Properties and Recyclability of Aluminium Beverage Cans and Coffee Capsules (Master's Thesis, Izmir Institute of Technology [Turkey]) 2022. https://www.proquest.com/openview/f5ce7729457c8e26a106444feacd3c29/1?pq-origsite=gscholar&cbl=2026366&diss=y (accessed 2025-02-25)

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