Cultivar-Specific Phenolic and Fatty-Acid Composition of Albanian Monovarietal Olive Oils.
7 affiliations
- 1Department of Agri-Food Technology, Faculty of Biotechnology and Food, Agricultural University of Tirana, Rruga Paisi Vodica, 1025 Tirana, Albania.
- 2Department of Social Sciences and Law, University of Jaen, Campus Las Lagunillas, 23071 Jaen, Spain.
- 3Department of Agronomy, University of Cordoba, Campus de Rabanales, 14071 Córdoba, Spain.
- 4Department of Analytical Chemistry, University of Cordoba, Campus de Rabanales, 14071 Córdoba, Spain.
- 5Agricultural Technology Transfer Center (ATTC) of Vlorë, 9411 Vlorë, Albania.
- 6Department of Food Microbiology, Water Monitoring and Quality, Food Safety and Veterinary Institute (ISUV), Rruga Aleksandër Moisiu 82, 1005 Tirana, Albania.
- 7Food Research Centre, Faculty of Biotechnology and Food, Agricultural University of Tirana, Rruga Paisi Vodica, 1025 Tirana, Albania.
Abstract
Albanian olive genetic resources remain under-characterised despite their potential for differentiated oil production. We evaluated 11 authenticated cultivars conserved in the Vlorë germplasm collection under common field, maturity and standardised industrial three-phase extraction conditions. Phenolics profile of those cultivars was quantified by liquid chromatography-tandem mass spectrometry (LC-MS/MS), and fatty-acid composition was determined by gas chromatography with flame-ionisation detection (GC-FID). Also, fruit moisture and oil content were analysed in maturity index 3. All these analytical parameters were integrated through univariate and multivariate statistical analyses. Cultivar factor significantly affected every trait. Total quantified phenolics ranged from 296.5 mg kg⁻¹ in 'U.K. Berat' to 791.0 mg kg⁻¹ in 'Managjel FV'; the latter was oleocanthal-rich, whereas 'U.H. Himare', 'Pulazeqin', 'Ulliri i Kuq' and 'Kotruvsi' showed distinctive oleacein-, oleuropein-aglycone/oleomissional-, ligstroside-aglycone/tyrosol-, and luteolin/hydroxytyrosol-rich profiles, respectively. Oleic acid ranged from 65.36% in 'Kotruvsi' to 79.92% in 'Unafka', which also showed the highest oleic/linoleic ratio. All cultivar means in this study exceeded the 250 mg kg⁻¹ screening reference for the European Food Safety Authority (EFSA)-related phenolic content, thereby showcasing the potential of Albanian monovarietal oils with respect to their health properties. Multivariate analyses provided complementary chemical and technological classification rather than a single quality ranking. These cultivar fingerprints provide a basis for conservation, breeding, authenticity assessment and future Protected Designation of Origin (PDO)/Protected Geographical Indication (PGI) valorisation.
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BibTeX
@article{hoxha2026cultivarspecific,
title = {{Cultivar-Specific Phenolic and Fatty-Acid Composition of Albanian Monovarietal Olive Oils.}},
author = {Fatjon Hoxha and Mivan Peçi and Concepción Muñoz Díez and Feliciano Priego Capote and Adhurim Lazaj and Anila Kopali and Elisa Peçi and Onejda Kyçyk and Hristofor Miho},
journal = {Foods (Basel, Switzerland)},
year = {2026},
month = oct,
doi = {10.3390/foods15203726},
url = {https://europepmc.org/article/MED/42940362},
note = {CC BY},
}
RIS
TY - JOUR
TI - Cultivar-Specific Phenolic and Fatty-Acid Composition of Albanian Monovarietal Olive Oils.
AU - Fatjon Hoxha
AU - Mivan Peçi
AU - Concepción Muñoz Díez
AU - Feliciano Priego Capote
AU - Adhurim Lazaj
AU - Anila Kopali
AU - Elisa Peçi
AU - Onejda Kyçyk
AU - Hristofor Miho
PY - 2026
DA - 2026/10/19
JO - Foods (Basel, Switzerland)
DO - 10.3390/foods15203726
UR - https://europepmc.org/article/MED/42940362
AB - Albanian olive genetic resources remain under-characterised despite their potential for differentiated oil production. We evaluated 11 authenticated cultivars conserved in the Vlorë germplasm collection under common field, maturity and standardised industrial three-phase extraction conditions. Phenolics profile of those cultivars was quantified by liquid chromatography-tandem mass spectrometry (LC-MS/MS), and fatty-acid composition was determined by gas chromatography with flame-ionisation detection (GC-FID). Also, fruit moisture and oil content were analysed in maturity index 3. All these analytical parameters were integrated through univariate and multivariate statistical analyses. Cultivar factor significantly affected every trait. Total quantified phenolics ranged from 296.5 mg kg⁻¹ in 'U.K. Berat' to 791.0 mg kg⁻¹ in 'Managjel FV'; the latter was oleocanthal-rich, whereas 'U.H. Himare', 'Pulazeqin', 'Ulliri i Kuq' and 'Kotruvsi' showed distinctive oleacein-, oleuropein-aglycone/oleomissional-, ligstroside-aglycone/tyrosol-, and luteolin/hydroxytyrosol-rich profiles, respectively. Oleic acid ranged from 65.36% in 'Kotruvsi' to 79.92% in 'Unafka', which also showed the highest oleic/linoleic ratio. All cultivar means in this study exceeded the 250 mg kg⁻¹ screening reference for the European Food Safety Authority (EFSA)-related phenolic content, thereby showcasing the potential of Albanian monovarietal oils with respect to their health properties. Multivariate analyses provided complementary chemical and technological classification rather than a single quality ranking. These cultivar fingerprints provide a basis for conservation, breeding, authenticity assessment and future Protected Designation of Origin (PDO)/Protected Geographical Indication (PGI) valorisation.
SN - 2304-8158
ER -