Publications
Detailed Information
Selective Adsorption of Rancid Ingredients in Extra Virgin Olive Oil for Enhancing Thermal Stability : 열안정성 향상을 위한 엑스트라 버진 올리브유 산패인자의 선택적 흡착에 관한 연구
Cited 0 time in
Web of Science
Cited 0 time in Scopus
- Authors
- Advisor
- 곽승엽
- Major
- 공과대학 재료공학부
- Issue Date
- 2017-08
- Publisher
- 서울대학교 대학원
- Keywords
- Mesoporous silica ; Adsorption ; Refining ; Extra virgin olive oil ; Adsorption kinetic ; Pore size ; Functionalization
- Description
- 학위논문 (석사)-- 서울대학교 대학원 공과대학 재료공학부, 2017. 8. 곽승엽.
- Abstract
- Selective removal of free fatty acid and chlorophyll while maintaining beneficial compounds is essential for expanding the use of extra virgin olive oil (EVOO) to the deep frying. In this work, we increased the thermal stability of EVOO by selective removal of rancid compounds with highly efficient adsorbent, (3-Aminopropyl)trimethoxysilane functionalized mesoporous silica with controlled pore size. The adsorption kinetics of rancid compounds into the mesoporous silica were quantitatively analyzed by Langmuir, pseudo-first and Poltorak model. The highest chlorophyll adsorption efficiency was shown in the pore size at 5.85 nm, suggesting that the interaction between the silica and the chlorophyll could be optimized at this point. In particular the amine-functionalized mesoporous silica showed drastically improved removal efficiency of FFA than the bare silica. Moreover, beneficial compounds like tocopherol and phytosterol maintained even after adsorptive removal. Based on this results, it is expected to attract the considerable amount of interest toward facile adsorptive refining process of EVOO using pore size controlled and amine-functionalized mesoporous silica.
- Language
- English
- Files in This Item:
Item View & Download Count
Items in S-Space are protected by copyright, with all rights reserved, unless otherwise indicated.