The present study consists in the evaluation of twenty five parameters
for determining the influence of continuous system of pastes centrifu
gation, discontinuous press system and partial extraction system on ob
tetion of virgin olive oil, and their possible utilization as new qual
ity parameters. Also, those indexes more related to quality than to sp
oilt degree (acid value, peroxide value and K270) were determined. The
tested oils have been obtained in three oil-mills, from three differe
nt olive varieties, in two ripening states.