Characteristics of Olive Fruits and the Maturity Index (MI) for Chemlali and Coratina Cultivars under Local Conditions in Libya
DOI:
https://doi.org/10.61952/jlabw.v2i1.493Keywords:
Libyan Audit Bureau, financial corruption, public expendituresAbstract
This study aimed to evaluate the physical and chemical characteristics and the ripening index (MI) of two major olive cultivars, Chemlali and Coratina, grown under local environmental conditions in Libya, over a four-month development period (October to January), Simulated data were generated to reflect the expected differences between the two cultivars. The results showed that the Coratina cultivar significantly outperformed the Chemlali cultivar in terms of average fruit weight and oil content in dry matter, with the oil content reaching 26.31% for Coratina compared to 22.58% for Chemlali in January. Conversely, the Chemlali cultivar exhibited a faster ripening rate, with its RI reaching 5.07 in January, compared to 3.99 for the Coratina cultivar during the same period. Statistical analysis (T-test) indicated highly significant differences (P < 0.01) between the two cultivars in all measured characteristics at the end of the ripening period. These findings underscore the importance of selecting the appropriate olive cultivar and determining the optimal harvest time based on the ripening index to achieve maximum oil quality and quantity.
References
FAO. (2020). Olive oil and olive pomace oil. Food and Agriculture Organization of the United Nations. (Reference to be refined with a specific Libyan or regional study if found).
Issaoui, M., Mechri, B., Echbili, A., Dabbou, S., & Chemlali, M. (2008). Physico-chemical changes of pomological characteristics, oil content, and fatty acid composition during olive fruit ripening. Journal of Food Quality, 31(2), 177-190.
Dabbou, S., Rjiba, I., Nakbi, A., Gazzah, N., & Issaoui, M. (2010). Compositional quality of virgin olive oils from cultivars introduced in Tunisian arid zones in comparison to Chemlali cultivars. Scientia Horticulturae, 124(3), 335-341.
International Olive Council (IOC). (2015). Trade Standard Applying to Olive Oils and Olive-Pomace Oils. (Reference to be refined).
Boskou, D. (2015). Olive Oil: Minor Components and Health. CRC Press. (Reference to be refined).
Chemical Tests for Extra Virgin Olive Oil. (n.d.). Retrieved from
Inside Olive Oil Certification: Chemical Testing Protocols. (n.d.). Retrieved from
International Olive Council Official Website. (n.d.). Retrieved from
Cristina Alamprese, Silvia Grassi, Alessio Tugnolo, Ernestina Casiraghi (2013), Prediction of olive ripening degree combining image analysis and FT-NIR spectroscopy for virgin olive oil optimization, Milano- Italy.


