Determination of trace metals in fruit juices in the Portuguese market

Mariana Anastácio, A. P.Marreilha dos Santos, Michael Aschner, Luísa Mateus

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

Fruit juices are amongst the most non-alcoholic beverages appreciated and consumed in European countries, including Portugal. These beverages contain minerals, nutrients, trace elements, vitamins and phytochemicals, which are essential for a healthy life. However, fruit juices may also contain high levels of metals, posing a health risk to humans, especially to children, since they consume more fruit juice per body weight unit, and have a less varied diet than adults. Thus, in order to guarantee food safety and to make sound nutritional considerations, fruit juices require careful investigation. The main purpose of this study was to determine arsenic (As), cadmium (Cd), chromium (Cr), lead (Pb), manganese (Mn) and nickel (Ni) concentrations in 21 fruit juices from 4 different brands, previously selected by the ASAE (Portuguese Food and Economic Safety Authority), and available in the Portuguese market. Results obtained were compared with permissible levels set out by WHO (World Health Organization), USEPA (United States Environmental Protection Agency), by the Portuguese law, and with similar studies performed in other countries. A validation process, including linearity, range, analytical thresholds, precision, accuracy and specificity/selectivity was conducted in order to guarantee reliable analytical data. The results showed that As levels in four samples, Ni in thirteen samples and Mn in all the twenty-one samples, were above the maximal permissible values specified by Decree-Law 306/2007 from 27th August of the Portuguese Legislation. These data establish the need for reduction of metal concentrations in consumed juices.

Original languageEnglish (US)
Pages (from-to)434-439
Number of pages6
JournalToxicology Reports
Volume5
DOIs
StatePublished - Jan 1 2018

Fingerprint

Fruit juices
Metals
Beverages
Food Safety
Arsenic
Manganese
Nickel
Food safety
United States Environmental Protection Agency
Portugal
Health risks
Environmental Protection Agency
Trace Elements
Phytochemicals
Chromium
Nutrition
Cadmium
Legislation
Vitamins
Nutrients

Keywords

  • Atomic Absorption Spectroscopy
  • Fruit juices
  • Metal analysis

ASJC Scopus subject areas

  • Toxicology
  • Health, Toxicology and Mutagenesis

Cite this

Determination of trace metals in fruit juices in the Portuguese market. / Anastácio, Mariana; dos Santos, A. P.Marreilha; Aschner, Michael; Mateus, Luísa.

In: Toxicology Reports, Vol. 5, 01.01.2018, p. 434-439.

Research output: Contribution to journalArticle

Anastácio, Mariana ; dos Santos, A. P.Marreilha ; Aschner, Michael ; Mateus, Luísa. / Determination of trace metals in fruit juices in the Portuguese market. In: Toxicology Reports. 2018 ; Vol. 5. pp. 434-439.
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