Article Per Year (5 Year)
p-Index From 2020 - 2025
0
P-Index
This Author published in this journals
All Journal Reaktor
A.Widjaja A.Widjaja
Departmen of Chemical Engineering, Institut Teknologi Sepuluh Nopember Kampus ITS Keputih Sukolilo - Surabaya 60111
Chemical Engineering, Chemistry & Bioengineering Control & Systems Engineering Energy Materials Science & Nanotechnology

Published : 1 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 1 Documents
Search

 1 
EFFECT OF SOLVENT THE SELECTIVE SEPARATION OF PHYTOSTEROLS USING ZEOLITE A.Widjaja A.Widjaja; Chuang Y.H. Chuang
Reaktor Volume 10 No. 1 Juni 2006
Publisher : Dept. of Chemical Engineering, Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/reaktor.10.1.31-36

Abstract

The effect of organic solvent on zeolite adsorption of sterols mixiture containing almost the same percentage of campesterol and B-sitosterol was investigated. Although pentane was found to give the highest adsorption rate than other solvents, but it was not chosen as the sovent due to its low boilingpoint and high volatility. Although iso-actane has a high boiling point and adsorption rate like pentane, however, since it shows lower  selectivity than other solvents, it was not considered as a good solvent. Based on the the selectivity study which shows that using hexane as the solvent campesterol was adsorbed more than B-sitosterol, and also based on the moderate boiling point of hexane, hexane wasconsidered the best solvent for the separation of campesterol and B-sitosterol by zeolite adsorption. It was found that adding up to 0.3% ethanol could increase the adsorption rate. Methanol, having the highest polarity among other solvents investigated, gave the highest desorption rate of campesterol adsorbed  on the zeolite surface. However, solvent selectivity in the desorption was lower than that in  adsorption.
Co-Authors Chuang Y.H. Chuang