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Quality improvement of naturally green table olives by controlling some processing parameters

Piga, Antonio <1965- > and Agabbio, Mario Carlo Salvatore (2003) Quality improvement of naturally green table olives by controlling some processing parameters. Italian Journal of Food Science, Vol. 15 (2), p. 259-268. ISSN 1120-1770. Article.

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Abstract

We report the results of the effect of some technological corrections, experimented during a three year study, designed to avoid the main processing problems of naturally processed olives. The following processing parameters were kept constant throughout time: salt (2 and 4%), pH (acidification with lactic acid to pH=4), fermenting temperature (25°C) and brine level. Results indicate that pH did not exceed the threshold of 4.5, while there was a weak free, combined and volatile acidity. Sugar and polyphenol diffusion into the brines was higher in the 2% brined olives than in the 4% ones. Gas pockets were not recorded, while a low incidence of irreversible shrivelling was noted only in the 4% brined olives. Panelists rated the olives as excellent for firmness and for residual bitter taste, and expressed a slight preference for 4% olives, because they were saltier.

Item Type:Article
ID Code:1644
Status:Published
Refereed:Yes
Uncontrolled Keywords:Brines, naturally green olives, polyphenols, processing
Subjects:Area 07 - Scienze agrarie e veterinarie > AGR/15 Scienze e tecnologie alimentari
Divisions:001 Università di Sassari > 01 Dipartimenti > Scienze ambientali agrarie e biotecnologie agro-alimentari
Publisher:Chiriotti Editori
ISSN:1120-1770
Publisher Policy:Depositato per gentile concessione dell'Editore
Deposited On:18 Aug 2009 10:05

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