Molecules 2008, 13(6), 1321-1332; doi:10.3390/molecules13061321
Article

Do Cultivar, Geographical Location and Crop Season Influence Phenolic Profile of Walnut Leaves?

1,2,* email, 1email, 1email, 3email and 1email
Received: 7 May 2008; in revised form: 7 June 2008 / Accepted: 8 June 2008 / Published: 12 June 2008
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Abstract: Walnut leaves from nine different cultivars (Arco, Franquette, Hartley, Lara, Marbot, Mayette, Meylannaise, Parisienne and Rego) were studied for their phenolic compounds. Samples were harvested along three consecutive years, at two different geographical locations, in order to evaluate if significant differences in the phenolics composition can be related with genetic, climatic or geographical factors. Nine compounds (3-caffeoylquinic, 3-p-coumaroylquinic and 4-p-coumaroylquinic acids, quercetin 3- galactoside, quercetin 3-arabinoside, quercetin 3-xyloside, quercetin 3-rhamnoside, a quercetin 3-pentoside derivative and a kaempferol 3-pentoside derivative) were quantified using an HPLC-DAD methodology. The qualitative profiles were identical for all samples, but differences were observed in terms of individual compounds’ contents. Multivariate statistical analysis was carried out, showing that significant differences exist among production years, which can be related to climatic reasons.
Keywords: Walnut leaves; Juglans regia L.; phenolic compounds; flavonoids; HPLCDAD; multivariate analysis
PDF Full-text Download PDF Full-Text [147 KB, uploaded 18 June 2014 19:28 CEST]

Export to BibTeX |
EndNote


MDPI and ACS Style

Amaral, J.S.; Valentão, P.; Andrade, P.B.; Martins, R.C.; Seabra, R.M. Do Cultivar, Geographical Location and Crop Season Influence Phenolic Profile of Walnut Leaves? Molecules 2008, 13, 1321-1332.

AMA Style

Amaral JS, Valentão P, Andrade PB, Martins RC, Seabra RM. Do Cultivar, Geographical Location and Crop Season Influence Phenolic Profile of Walnut Leaves? Molecules. 2008; 13(6):1321-1332.

Chicago/Turabian Style

Amaral, Joana S.; Valentão, Patrícia; Andrade, Paula B.; Martins, Rui C.; Seabra, Rosa M. 2008. "Do Cultivar, Geographical Location and Crop Season Influence Phenolic Profile of Walnut Leaves?" Molecules 13, no. 6: 1321-1332.

Molecules EISSN 1420-3049 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert