QUANTITATIVE DETERMINATION OF EXTRACTIVES, INORGANIC INGREDIENTS AND PH OF CYPRESS TREES (Cupressus sempervirens L.) FROM DIFFERENT PROVENANCES

The objective of the present study was the determination of the extractives, acidity and ash content of three different provenances of Cupressus semprevirens wood. The specimens were collected from the sapwood, heartwood, bark and needles of the trees. The quantitative determination of the extractions was performed with two different solvents, water and ethanol. The results showed no significant differences among the three provenances (P1, P2 and P3), except for the oldest, which also had the highest extract content, a fact that is attributed to the growth of the trees without competition. Furthermore, the needles and the bark, had, in all cases, the highest ash content, while heartwood appeared to have higher contents of extractives, compared to sapwood.