Citation
Koki I. B., . and Kharisu C. S., . and Ikram R., . and Low K. H, . Elemental variations and safety assessment of commercial onions (Allium cepa) by inductively coupled plasma-mass spectrometry and chemometrics. pp. 1717-1724. ISSN 0116-6514
Abstract
The concentrations of Cd As Pb Se Fe Mn Zn and Cu in acid-digested onion samples were determined by inductively coupled plasma mass spectrometry and the corresponding elemental profiles were evaluated by using chemometric techniques. Results from principal component analysis and hierarchical cluster analysis revealed that the spatial variations were highly associated with As Se Pb Zn and Cd which advocated dominance of the site related impacts over colour variant of the onions. Such variation pattern could be partly attributed to the consequences of industrialisation and/or urbanisation. From the safety assessment data concentrations of hazardous elements such as As Cd and Pb were found beyond the World Health Organisation and Food and Agricultural Organisation permissible levels but within the Malaysian regulatory limits except for Pb. The presence of elevated levels of toxic elements beyond the reference limits in the onion varieties could be of health concern if ingested.
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Abstract
The concentrations of Cd As Pb Se Fe Mn Zn and Cu in acid-digested onion samples were determined by inductively coupled plasma mass spectrometry and the corresponding elemental profiles were evaluated by using chemometric techniques. Results from principal component analysis and hierarchical cluster analysis revealed that the spatial variations were highly associated with As Se Pb Zn and Cd which advocated dominance of the site related impacts over colour variant of the onions. Such variation pattern could be partly attributed to the consequences of industrialisation and/or urbanisation. From the safety assessment data concentrations of hazardous elements such as As Cd and Pb were found beyond the World Health Organisation and Food and Agricultural Organisation permissible levels but within the Malaysian regulatory limits except for Pb. The presence of elevated levels of toxic elements beyond the reference limits in the onion varieties could be of health concern if ingested.
Additional Metadata
| Item Type: | Article |
|---|---|
| AGROVOC Term: | Onions |
| AGROVOC Term: | Allium cepa |
| AGROVOC Term: | Chemical analysis (methods) |
| AGROVOC Term: | Mass spectrometry |
| AGROVOC Term: | Heavy metals |
| AGROVOC Term: | Trace element content |
| AGROVOC Term: | Toxicity |
| AGROVOC Term: | Colour |
| AGROVOC Term: | Cadmium |
| AGROVOC Term: | Arsenic |
| Depositing User: | Mr. AFANDI ABDUL MALEK |
| Last Modified: | 24 Apr 2025 00:54 |
| URI: | http://webagris.upm.edu.my/id/eprint/8754 |
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