Please use this identifier to cite or link to this item: https://hdl.handle.net/11147/2279
Title: Adsorption of olive leaf (Olea europaea L.) antioxidants on silk fibroin
Authors: Bayçın, Deniz
Altıok, Evren
Ülkü, Semra
Bayraktar, Oğuz
Altıok, Evren
Ülkü, Semra
Bayraktar, Oğuz
Keywords: Antimicrobial
Antioxidant
Olea europaea
Oleuropein
Olive leaves
Silk fibroin
Issue Date: Feb-2007
Publisher: American Chemical Society
Source: Bayçın, D., Altıok, E., Ülkü, S., and Bayraktar, O. (2007). Adsorption of olive leaf (Olea europaea L.) antioxidants on silk fibroin. Journal of Agricultural and Food Chemistry, 55(4), 1227-1236. doi:10.1021/jf062829o
Abstract: The adsorption isotherms of oleuropein and rutin were evaluated at different temperatures, pH values, and solid/liquid ratios. The experimental data of adsorption isotherms were well fitted to a Langmuir model. The maximum adsorption capacities were determined as 108 mg of oleuropein/g of silk fibroin and 21 mg of rutin/g of silk fibroin. After adsorption of oleuropein and rutin, the antioxidant capacity of silk fibroin increased from 1.93 to 3.61 mmol of TEAC/g. Silk fibroin also gained antimicrobial activity against Staphylococcus aureus and Klebsiella pneumoniae after adsorption of olive leaf antioxidants. In a desorption process, 81% of rutin and 85% of oleuropein were removed from the adsorbent surface in 70% aqueous ethanol solution. Consequently, silk fibroin was found to be a promising biomaterial for the production of functional food or dietary supplements and for the purification of oleuropein and rutin from olive leaf extracts.
URI: http://doi.org/10.1021/jf062829o
http://hdl.handle.net/11147/2279
ISSN: 0021-8561
0021-8561
Appears in Collections:Chemical Engineering / Kimya Mühendisliği
Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collection
WoS İndeksli Yayınlar Koleksiyonu / WoS Indexed Publications Collection

Files in This Item:
File Description SizeFormat 
2279.pdfMakale248.32 kBAdobe PDFThumbnail
View/Open
Show full item record

CORE Recommender

SCOPUSTM   
Citations

64
checked on Oct 16, 2021

WEB OF SCIENCETM
Citations

60
checked on Oct 16, 2021

Page view(s)

38
checked on Oct 19, 2021

Download(s)

52
checked on Oct 19, 2021

Google ScholarTM

Check

Altmetric


Items in GCRIS Repository are protected by copyright, with all rights reserved, unless otherwise indicated.