Document details

Vitamin E profile as a reliable authenticity discrimination Factor between chestnut (Castanea sativa Mill.) cultivars

Author(s): Barreira, João C.M. ; Alves, Rita C. ; Casal, Susana ; Ferreira, Isabel C.F.R. ; Oliveira, Beatriz ; Pereira, J.A.

Date: 2009

Persistent ID: http://hdl.handle.net/10198/2613

Origin: Biblioteca Digital da UPB

Subject(s): Chestnut kernel oil; HPLC; Vitamin E; Discriminant analysis


Description

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.

Document Type Journal article
Language English
Contributor(s) Biblioteca Digital da UPB
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