Utilize este identificador para referenciar este registo: http://hdl.handle.net/10400.22/7202
Título: Espresso beverages of pure origin coffee: Mineral characterization, contribution for mineral intake and geographical discrimination
Autor: Oliveira, Marta
Ramos, Sandra
Delerue-Matos, Cristina
Morais, Simone
Palavras-chave: Espresso coffee beverages
Pure origin coffees differentiation
Minerals
High-resolution continuum source atomic absorption spectrometry
Data: Jun-2015
Editora: Elsevier
Relatório da Série N.º: Food Chemistry;Vol. 177
Resumo: Espresso coffee beverages prepared from pure origin roasted ground coffees from the major world growing regions (Brazil, Ethiopia, Colombia, India, Mexico, Honduras, Guatemala, Papua New Guinea, Kenya, Cuba, Timor, Mussulo and China) were characterized and compared in terms of their mineral content. Regular consumption of one cup of espresso contributes to a daily mineral intake varying from 0.002% (sodium; Central America) to 8.73% (potassium; Asia). The mineral profiles of the espresso beverages revealed significant inter- and intra-continental differences. South American pure origin coffees are on average richer in the analyzed elements except for calcium, while samples from Central America have generally lower mineral amounts (except for manganese). Manganese displayed significant differences (p < 0.05) among the countries of each characterized continent. Intercontinental and inter-country discrimination between the major world coffee producers were achieved by applying canonical discriminant analysis. Manganese and calcium were found to be the best chemical descriptors for origin.
Peer review: yes
URI: http://hdl.handle.net/10400.22/7202
DOI: 10.1016/j.foodchem.2015.01.061
Versão do Editor: http://www.sciencedirect.com/science/article/pii/S0308814615000631
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