The synergetic effects of a recollection and conservation method
designed for small producers on the quality parameters of the produced
olive oil.
Abstract
The production of ‘Premium’ olive oil depends in large part of the
quality of the fruit. Small producers see themselves confronted with
vast investments and logistic snags when they intend to optimize the
recollection. Recently manual devices at an affordable price promises
less damaged fruit when compared to the traditional picking with nets
while the use of a cooling room on the farm might offer a solution when
the picking needs to be stretched out over several days. The effects of
picking with a manual inverted umbrella, together with a storage up to
14 days at 5 °C was studied, taking into account ten quality parameters
of the produced oil during two years and three cultivars: ‘Arbequina’,
‘Picual’ and ‘Verdial’. The results indicate that such a combination
guaranteed the best quality end product as compared with any of the
three other ones. The strength of each factor, estimated with the
omega-square statistic, varied in time and according to the cultivar.
‘Arbequina’ showed to be the most sensible with a rapid increase of the
importance of the conservation factor. ‘Picual’ showed to be the most
resistant to deterioration with a lower explanatory value of this factor
as compared to the picking method. The study indicates that small
producers, even under financial and logistic restrictions, can obtain a
high quality end product. Either by combining both methods or by
choosing the one that guaranties the best results given the cultivar and
the specific storage time they opt to take into account.