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Title:The effect of olive fruit fly Bactrocera oleae (Rossi) infestation on certain chemical parameters of produced olive oils
Authors:ID Valenčič, Vasilij (Author)
ID Butinar, Bojan (Author)
ID Podgornik, Maja (Author)
ID Bučar-Miklavčič, Milena (Author)
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MD5: D18DA9D544D7764A210AB09BDC7BCCF4
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Typology:1.01 - Original Scientific Article
Organization:Logo ZRS Koper - Science and Research Centre Koper
Abstract:Olives affected by active and damaging infestation (olive fruit fly Bactrocera oleae (Rossi)) were assayed for their chemical composition. Biophenols were determined by HPLC, sterols, triterpenic dialcohols, and fatty acids by gas chromatography analysis. The acquired data were statistically analyzed. Oils produced from "Istrska belica" fruit affected by active infestation compared to the oils made from fruit affected by damaging infestation showed higher amounts of total oleuropein biofenols (377.3 versus (vs.) 106.6 mg/kg), total biophenols (755 vs. 377 mg/kg), lignans (85.3 vs. 32.9mg/kg), the dialdehydic formof decarboxymethyl oleuropein aglycone (DMO-AgldA) (148.3 vs. 49.0 mg/kg), its oxidized form (DMO-Agl-dA)ox (35.2 vs. 8.5 mg/kg), the dialdehydic form of oleuropein aglycone (O-Agl-dA) (61.1 vs. 8.0 mg/kg), the dialdehydic form of ligstroside aglycone (L-Agl-dA) (63.5 vs. 28.0 mg/kg), the aldehydic form of oleuropein aglycone (O-Agl-A) (40.6 vs. 8.4 mg/kg), and lower amounts of tyrosol (Tyr) (6.0 vs. 13. 9 mg/kg) and the aldehydic form of ligstroside aglycone (L-Agl-A) (13.8 vs. 40.3 mg/kg). Higher values of stigmasterol (2.99%) and lower values of campesterol (2.25%) were determined in oils affected by damaging infestation; an increase in triterpenic dialcohols was also observed (3.04% for damaging and 1.62% for active infestation). Oils affected by damaging infestation, compared to active infestation, showed lower amounts of oleic acid (73.89 vs. 75.15%) and higher amounts of myristic (0.013 vs. 0.011%), linoleic (7.27 vs. 6.48%), and linolenic (0.74 vs. 0.61%) acids.
Keywords:olives, Istrska belica, olive fruit fly, biophenols, sterols, triterpenic dialcohols, fatty acids
Publication status in journal:Published
Article version:Publisher's version of article
Year of publishing:2021
Number of pages:str. 1-17
Numbering:Vol. 26, no. 1
PID:20.500.12556/DiRROS-13655 New window
ISSN on article:1420-3049
DOI:10.3390/molecules26010095 New window
COBISS.SI-ID:46522627 New window
Copyright:© 2020 by the authors
Note:Nasl. z nasl. zaslona; Opis vira z dne 12. 1. 2021; Soavtorji: Bojan Butinar, Maja Podgornik, Milena Bučar-Miklavčič; Članek št. 95;
Publication date in DiRROS:13.01.2021
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Shortened title:Molecules
COBISS.SI-ID:18462981 New window


License:CC BY 4.0, Creative Commons Attribution 4.0 International
Description:This is the standard Creative Commons license that gives others maximum freedom to do what they want with the work as long as they credit the author.
Licensing start date:28.12.2020

Secondary language

Keywords:oljke, Istrska belica, oljčna muha, biofenoli, steroli, triterpenski dialkoholi, maščobne kisline, analize