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Optimization of ultrasound-assisted extraction of total phenolic contents and antioxidant activity using response surface methodology from jujube leaves (Ziziphus jujuba) and evaluation of anticholinesterase inhibitory activity

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Date
2019-03-01
Author
Zemouri-Alioui, Salima
Louaileche, Hayette
Bey, Mostapha Bachir
Kurt, BELMA
Sonmez, Fatih
Advisor
Type
Article
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Abstract
An ultrasound-assisted procedure for the extraction of phenolics (TPC) and antioxidant activity (AA) from jujube leaves have been investigated using response surface methodology (RSM). The Box-Behnken design was used to investigate the effects of three independent variables, solvent concentration (methanol/water; 40-100%), ultrasound-intensity (20-100%), and extraction time (3-15min) on the responses. The optimal extraction conditions were 64.20% methanol, 73.60% ultrasound intensity, and 13.27min. Under optimal conditions, the corresponding experimental values for TPC and AA were 6098.14mg GAE/100g DMand 4010.63mg AAE/100g DM. The experimental values were in close agreement with those predicted values within a 99% confidence level, thus indicating the suitability of the model and the success of RSM in optimizing the ultrasound assisted extraction of TPC and AA of jujube leaves. The results showed that optimized jujube leaves extract exhibited inhibitory effects on both acetylcholinesterase and butyrylcholinesterase with IC50 of 62.30 +/- 2.54 and 147.00 +/- 2.31 mu g/mL, respectively.
Subject
Zemouri-Alioui S., Bey M. B. , Kurt B., Sonmez F., Louaileche H., -Optimization of ultrasound-assisted extraction of total phenolic contents and antioxidant activity using response surface methodology from jujube leaves (Ziziphus jujuba) and evaluation of anticholinesterase inhibitory activity-, JOURNAL OF FOOD MEASUREMENT AND CHARACTERIZATION, cilt.13, ss.321-329, 2019
URI
https://hdl.handle.net/20.500.12645/1985
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BEZMIALEM VAKIF UNIVERSITY

About us |Policies | Library | Contact us | Send Feedback | Sitemap | Admin

Bezmialem Vakıf Üniversitesi, Adnan Menderes Bulvarı Vatan Caddesi 34093 Fatih, İstanbul / TURKEY
Copyright © Bezmialem Vakıf Üniversitesi

Creative Commons Lisansı
Bezmialem Institutional Repository, Creative Commons Alıntı-GayriTicari-Türetilemez 4.0 Uluslararası Lisansı ile lisanslanmıştır.

OpenAccess@BVU

Support by  UNIREPOS