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Orientador(es)
Resumo(s)
In this study, the profile of tocopherols and tocotrienols in chestnut (Castanea sativa Mill.) kernel oil
was evaluated. Four Portuguese chestnut varieties were selected: Aveleira, Boaventura, Judia, and
Longal. The vitamin E determination had already been applied to similar matrices, but, to the
authors’ knowledge, it is the first time that chestnut kernel oil has been evaluated. The prevalent
vitamer was γ-tocopherol, often present in trace amounts in other natural products. Due to the high
commercial value of chestnut, a statistical analysis of the obtained results was also conducted to
define the tocopherol and tocotrienol profile as a reliable indicator of a specific chestnut variety. To
achieve this objective, an analysis of variance was performed to evaluate the accuracy of the
method as well as the uniformity of results for each variety. A discriminant analysis was also carried
out revealing quite satisfactory results. Four varieties were clustered in four individual groups
through the definition of two discriminant analysis dimensions.
Descrição
Palavras-chave
Chestnut kernel oil HPLC Vitamin E Discriminant analysis
Contexto Educativo
Citação
Barreira, João; Alves, Rita; Casal, Susana; Ferreira, ICFR; Oliveira, Beatriz; Pereira, José A. (2009). Vitamin E profile as a reliable authenticity discrimination Factor between chestnut (Castanea sativa Mill.) cultivars. Journal of Agricultural and Food Chemistry, ISSN 1520-5118. 57:21. p. 5524-55278.
Editora
American Chemical Society