This chapter reports a comparative study based on the volatile compds., polyphenols, orthodiphenols and flavonoides content from the northern Tunisian cultivars; chemlali and neb jmel and from the southern Tunisian cultivar; chemchali. There were differences between the leaves, fruits and stems from the cultivars when grown in the different environments. Volatiles oils were also influenced by the pedoclimatic conditions and the organ; hence, the leaves and stems of the southern varieties seem to be richer in total alcs. and total C6 alcs. than the northern variety. The sesquiterpene hydrocarbons, present in all the volatiles oils studied was more abundant in leaves volatile oil from the northern varieties (14.7% and 15.9% for chemlali and neb jmel, resp.) than in the southern variety. Results presented suggest the assumption that accumulation of polyhenols is most active in the fruits of the southern cultivar and generally more active in the leaves and stems of the northern cultivars than southern cultivars. In general, the genetic (varietal) and organs studied may be used to discriminate and to characterize the location conditions.
Effect of the growing area and cultivaron phenolic content and volatiles compounds of related products of selected Tunisian olive varieties
FLAMINI, GUIDO;
2014-01-01
Abstract
This chapter reports a comparative study based on the volatile compds., polyphenols, orthodiphenols and flavonoides content from the northern Tunisian cultivars; chemlali and neb jmel and from the southern Tunisian cultivar; chemchali. There were differences between the leaves, fruits and stems from the cultivars when grown in the different environments. Volatiles oils were also influenced by the pedoclimatic conditions and the organ; hence, the leaves and stems of the southern varieties seem to be richer in total alcs. and total C6 alcs. than the northern variety. The sesquiterpene hydrocarbons, present in all the volatiles oils studied was more abundant in leaves volatile oil from the northern varieties (14.7% and 15.9% for chemlali and neb jmel, resp.) than in the southern variety. Results presented suggest the assumption that accumulation of polyhenols is most active in the fruits of the southern cultivar and generally more active in the leaves and stems of the northern cultivars than southern cultivars. In general, the genetic (varietal) and organs studied may be used to discriminate and to characterize the location conditions.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
