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Orientador(es)
Resumo(s)
Pre- and post-harvest factors determine the levels of the selected risk elements in100% fruit juices. The juices samples
closely followed the Brix international reference values. Fruit juices presented the following order of the elements mean
concentrations: cadmium (1.597 μg/l), chromium (2.767 μg/l), lead (20.75 μg/l), nickel (73.37 μg/l), zinc (545.9 μg/l),
and iron (1792 μg/l), measured by AAS. The pre-harvest factors (origin, fruit, and agriculture) and the post-harvest
factors (blending, packaging, conservation, pasteurisation, and process) were evaluated according to the manufacturers
information and were correlated with the elements concentrations of fruit juices. A strong relationship was detected
between the fruit species used for the juice production (i.e. pre-harvest factor) and their elements concentrations.
Furthermore, multiple correspondence analysis was used for reducing the data dimension by grouping the factors. The
zinc concentration was detected as a potential proxy for the identification of the fruit juices manufacturing process.
Descrição
Palavras-chave
trace metals chemometrics atomic absorption
Contexto Educativo
Citação
Paula FJA, Guiné RPF, Lopes LC, Duarte AC, Fragata AOS, Reia MAL (2015) Effects of Pre- and Post-Harvest Factors on the Selected Elements Contents in Fruit Juices. Czech Journal of Food Sciences, 33(4): 384-391.