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Food Additives & Contaminants: Part A Volume 36, 2019 - Issue 12
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Articles

Assessment of heavy metals in calcium carbide treated mangoes by inductively coupled plasma-mass spectrometry (ICP-MS)

Saqib HassanH.E.J. Research Institute of Chemistry, International Center for Chemical and Biological Sciences, University of Karachi, Karachi, Pakistan
,
Wardah MazharH.E.J. Research Institute of Chemistry, International Center for Chemical and Biological Sciences, University of Karachi, Karachi, Pakistan
,
Sabiha FarooqH.E.J. Research Institute of Chemistry, International Center for Chemical and Biological Sciences, University of Karachi, Karachi, Pakistan
,
Arslan AliDr. Panjwani Center for Molecular Medicine and Drug Research, International Center for Chemical and Biological Sciences, University of Karachi, Karachi, PakistanORCID Iconhttps://orcid.org/0000-0001-5754-6483
ORCID Icon &
Syed Ghulam MusharrafH.E.J. Research Institute of Chemistry, International Center for Chemical and Biological Sciences, University of Karachi, Karachi, Pakistan;Dr. Panjwani Center for Molecular Medicine and Drug Research, International Center for Chemical and Biological Sciences, University of Karachi, Karachi, PakistanCorrespondence[email protected]
Pages 1769-1776 | Received 30 May 2019, Accepted 16 Sep 2019, Published online: 11 Oct 2019
 
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ABSTRACT

Calcium carbide (CaC2) is widely used as the low price artificial ripening agent of fruits. It may contain traces of heavy metals which can make fruits harmful for human consumption. This study aimed to assess heavy metals present in commercial-grade CaC2 and subsequently their quantification in mango peels for the identification of possible marker elements as an indicator of CaC2 ripening. Samples were prepared by using microwave-assisted digestion followed by multi-elemental quantitative analysis using inductively coupled plasma-mass spectrometry (ICP-MS). In commercial grade CaC2 samples, the concentrations of analysed metals were found to be in the range of 0.6–540.92 µg/g with given order Fe>Zn>Mn>Cr>Pb>Cu>Ag>As>Ni>Co>Cd. The CaC2-treated mango peels showed elevated levels of Fe, Co, As, and Pb in comparison to untreated mango peels (p < 0.05).

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