Influence of growing area and harvest date on the organic acid composition of olive fruits from Gemlik variety

dc.contributor.authorArslan, D.
dc.contributor.authorÖzcan, Mehmet Musa
dc.date.accessioned2020-03-26T18:14:55Z
dc.date.available2020-03-26T18:14:55Z
dc.date.issued2011
dc.departmentSelçuk Üniversitesien_US
dc.description.abstractOrganic acids (oxalic, citric, galacturonic, tartaric, malic, lactic and succinic) contents of Gemlik variety olive fruits from five different cultivation areas of South Anatolia (Turkey), harvested in six collection dates (September, October and November of crop years 2006 and 2007), were determined by HPLC/DAD. Citric acid was the major compound (similar to 45%), followed by succinic (19%) and galacturonic acids (similar to 16%). The olive fruits of Antalya location showed the lowest and Karaman, Alanya and Hatay locations had the highest levels of total organic acids, especially on the early and late harvest. Significant interactions between "location", "harvest date" and "crop year" were found, regarding the concentrations of citric, lactic, oxalic, tartaric and malic acid (3-way and 2-way interactions), which means that the effect of one factor (e.g. "location") on an acid's concentration is not constant across the levels of the other factor. For succinic and galacturonic acids's concentrations, all interactions between the considered factors were statistically significant, except the 2-way interaction between "harvest date" and "crop year" which was no significant, meaning that the effect of factor "harvest date" on the succinic and/or on the galacturonic acid's concentrations does not vary significantly from one level of factor "crop year" to other. Significant mean differences were found in the concentrations of individual organic acids according to harvest time, which indicated generally a decline as harvest date moved on or no significant changes in some cases, Our results showed that rainfall and altitude of the location seemed to have more marked effects than temperature, on the levels of some organic acids such as malic, oxalic and succinic acids. The grouping of locations formed in Principal Component Analysis were quite different according to crop years, as for the first crop year (2006) "oxalic, citric, tartaric and succinic" and "lactic, malic, galacturonic" acids were the two groups of variables mainly responsible for discrimination, while for the following crop year (2007) "galacturonic, tartaric, oxalic, lactic": "succinic, citric" and "malic" acids were the three groups responsible for the formation of clusters. (C) 2011 Elsevier B.V. All rights reserved.en_US
dc.description.sponsorshipSelcuk University Office of Scientific Research ProjectsSelcuk University [SU-BAP-07101016]en_US
dc.description.sponsorshipThis study is a part of the PhD thesis of Derya Arslan and was financially supported by Selcuk University Office of Scientific Research Projects (Project ID: SU-BAP-07101016).en_US
dc.identifier.doi10.1016/j.scienta.2011.08.020en_US
dc.identifier.endpage641en_US
dc.identifier.issn0304-4238en_US
dc.identifier.issue3en_US
dc.identifier.scopusqualityQ1en_US
dc.identifier.startpage633en_US
dc.identifier.urihttps://dx.doi.org/10.1016/j.scienta.2011.08.020
dc.identifier.urihttps://hdl.handle.net/20.500.12395/26558
dc.identifier.volume130en_US
dc.identifier.wosWOS:000296128600021en_US
dc.identifier.wosqualityQ1en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.language.isoenen_US
dc.publisherELSEVIER SCIENCE BVen_US
dc.relation.ispartofSCIENTIA HORTICULTURAEen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.selcuk20240510_oaigen_US
dc.subjectOlive fruiten_US
dc.subjectHarvest dateen_US
dc.subjectLocationen_US
dc.subjectOrganic acidsen_US
dc.titleInfluence of growing area and harvest date on the organic acid composition of olive fruits from Gemlik varietyen_US
dc.typeArticleen_US

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