TY  - JOUR
T1  - OPTIMIZATION OF ULTRASOUND-ASSISTED EXTRACTION OF OLIVE LEAF (var. HALHALI) EXTRACTS
AU  - Ünver, Naciye
AU  - Çelik, Şerafettin
PY  - 2022
DA  - February
Y2  - 2022
DO  - 10.15671/hjbc.595565
JF  - Hacettepe Journal of Biology and Chemistry
JO  - HJBC
PB  - Hacettepe University
WT  - DergiPark
SN  - 2687-475X
SP  - 173
EP  - 184
VL  - 50
IS  - 2
LA  - en
AB  - In this study, the effects ofthree different independent variables (extraction temperature, extraction time,ultrasonic power) on the total phenolic content, extraction yield andantioxidant capacity (IC50) value of olive leaf extracts of Halhalıvariety which is originated from South-eastern Anatolia Region wereinvestigated. As a result of the evaluation made with Box-Behnken Design Model,the optimum conditions were determined as 62.94°C, 50.67 min, and 64.65%ultrasonic power for the optimization of ultrasonic-assisted extraction. In order to visualize the effect ofextraction method on TPC, extraction yield and IC50 value of oliveleaf extracts, results of three extraction methods were compared. Thedifferences among the mean values of the investigated parameters in terms ofextraction method were found significantly different (P<0.05). In addition, it can be inferenced thatultrasound assisted extraction accelerated the transition of phenolicsubstances to solvent in terms of SEM images and investigated other parameters.
KW  - Olive leaf extract
KW  - Halhalı variety
KW  - ultrasound assisted extraction
KW  - optimization
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UR  - https://doi.org/10.15671/hjbc.595565
L1  - https://dergipark.org.tr/en/download/article-file/768127
ER  -