@misc{10481/106480,
year = {2025},
month = {8},
url = {https://hdl.handle.net/10481/106480},
abstract = {The present study focuses on recovering phenolic compounds and terpenes from olive
leaves, which are generated as by-products during olive oil processing. To this end,
conventional extraction/maceration (CE) and advanced extraction techniques such as
subcritical water extraction (SWE), pressurized fluid extraction (PLE) and ultrasoundassisted extraction (UAE) were employed to compare and determine the most effective
procedure. The phenolic and terpenoid composition of the extracts revealed a total of
33 compounds in HPLC-QTOF-MS analysis. According to these findings, the optimal
extraction techniques for the maximum recovery of secoiridoids from olive leaves were
PLE and UAE, with no significant difference between them (21.9891 ± 2.5521 mg/g DW
and 21.0888 ± 1.3494 mg/g DW, respectively). Regarding to flavonoids, UAE was the
most effective extraction technique, yielding 4.9837 ± 0.6739 mg/g DW. However, SWE
recovered the highest amount of phenolic alcohols (7.4201 ± 0.9848 mg/g DW), which
could be due to degradation of the secoiridoids during extraction. Conversely, UAE
was more successful than the other techniques for the extraction of the terpene family
(0.7373 ± 0.0601 mg/g DW). The present study therefore focuses on comparing different
extraction techniques for revalorizing olive leaves as a source of bioactive compounds,
specifically polyphenols and terpenes, due to their beneficial health properties.},
organization = {MCIN/AEI/10.13039/501100011033 - European Union
NextGeneration EU/PRTR (TED2021-132489A-I00)},
organization = {University of Granada (Grant PPJIB2023-121)},
publisher = {MDPI},
keywords = {Olea europaea L.},
keywords = {Olive leaves},
keywords = {Olive waste},
title = {Eco-Friendly Extraction of Olive Leaf Phenolics and Terpenes: A Comparative Performance Analysis Against Conventional Methods},
doi = {10.3390/foods14173030},
author = {López-Salas, Lucía and Expósito-Almellón, Xavier and Valencia-Isaza, Anderson and Fernández-Arteaga, Alejandro and Quirantes-Piné, Rosa and Borrás-Linares, Isabel and Lozano-Sánchez, Jesús},
}