Oleuropein amounts of olive leaves from different regions of Northern Cyprus
Abstract
Olive (Olea europea L.) trees are widely grown in Mediterranean region and leaves are used as a traditional medicine. Oleuropein is the main active compound for the olive leaves. Olive leaves have potentially beneficial effects on certain health conditions, including antimicrobial and antioxidant and other biological activities. These beneficial effects may be due to the antioxidant components of olive leaves, especially oleuropein. Oleuropein containing extracts are used in many supplements for different pharmacological activities. In this study, oleuropein amounts of olive leaves from seven different localities of North Cyprus were investigated by HPLC. Olive leaves were extracted by methanol according to European Pharmacopoeia’s method. Oleuropein amounts of the extracts were calculated by reversed phase HPLC with PDA. Buyukkonuk and Guzelyurt samples contain the highest amount of oleuropein, followed by Tatlisu, Dipkarpaz, Lapta, Zeytinlik and Lefke.
Keywords
References
- Anza M, Bibiso M, Alemayehu B, Desalegn E (2017). Phytochemical analysis, in vitro antioxidant and antibacterial activities of root extracts of Carduus macracanthus. J Coast Life Med 5(11): 486-491.
- Czerwińska ME, Duszak K, Parzonko A, Kiss AK (2016). Chemical composition and UV a-protecting activity of extracts from Ligustrum vulgare and Olea europaea leaves. Acta Biol Cracoviensia Series Botanica 58(2): 45–55.
- European Pharmacopoeia 8th edition, p. 1337, 2014.
- Hayes JE, Allen P, Brunton N, O’Grady MN, Kerry JP (2011). Phenolic composition and in vitro antioxidant capacity of four commercial phytochemical products: Olive leaf extract (Olea europaea L.), lutein, sesamol and ellagic acid. Food Chem 126(3): 948-955.
- Kapellakis IE, Tsagarakis KP, Crowther JC (2008). Olive oil history, production and by-product management. Rev Environmental Sci and Bio/Technol 7(1): 1-26.
- Qin S, Hou D (2017). The Biofunctions of Phytochemicals and Their Applications in Farm Animals: The Nrf 2/Keap1 System as a Target. Engineering 3: 738–752.
- Talhaoui N, Taamalli A, Gómez-Caravaca AM, Fernández-Gutiérrez A, Segura-Carretero A (2015). Phenolic compounds in olive leaves: Analytical determination, biotic and abiotic influence, and health benefits. Food Res Inter 77(2): 92-108.
- Talhaoui N, Vezza T, Gómez-Caravaca AM, Fernández-Gutiérrez A, Gálvez J, Segura-Carretero A (2016). Phenolic compounds and in vitro immunomodulatory properties of three Andalusian olive leaf extracts. J Functional Foods 22:270–277.
Details
Primary Language
English
Subjects
Pharmacology and Pharmaceutical Sciences
Journal Section
Research Article
Publication Date
December 30, 2019
Submission Date
October 30, 2019
Acceptance Date
November 18, 2019
Published in Issue
Year 2019 Volume: 2 Number: 2