Vol. 77 No: 4

Title:
Variation in the essential oils of citron leaves and peel infected by exocortis disease

Authors:
S.A. VEKIARI, E.E PROTOPAPADAKIS, P. PAPADOPOULOU and N. ARGYRIADOU-GIANNOVITS

pp: 428-431

Abstract:
A study was undertaken to identify the aroma profile and to investigate how the exocortis disease (CEV) affects the oil, in leaves and peel of citron (Citrus medica, L., ´Diamante`), using gas chromatography (GC)/mass spectroscopy (MS). Significant differences were observed in the content of some oil components between healthy and diseased leaves and peel. The content of the monoterpene hydrocarbons limonene and δ,3-carene and the aldehyde Cl0-al was significantly higher in leaves infected by the virus. Other constituents such as the ester geranyl proprionate, the aldehyde C9-al and the sesquiterpene caryophyllenoxide were found in significantly lower concentrations in infected leaves than in healthy ones. Monoterpene hydrocarbons like α-pinene, β3-pinene, (Z)β-ociniene, and (E)β-ocimene were in higher quantities in the infected peel. Concentrations of the majority of aldehydes, alcohols and esters were higher in the healthy peel.

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