Universiti Teknologi Malaysia Institutional Repository

Supercritical fluid extraction of bioactive flavonoid from strobilanthes crispus (pecah kaca) and its comparison with solvent extraction

M. S., Liza and Abdul Rahmana, Rozlin and A. Hamid, Ahmed Mostafa (2012) Supercritical fluid extraction of bioactive flavonoid from strobilanthes crispus (pecah kaca) and its comparison with solvent extraction. International Food Research Journal, 19 (2). pp. 503-508. ISSN 1985-4668

Full text not available from this repository.

Official URL: http://dx.doi.org/10.1016/j.fbp.2009.02.001

Abstract

The bioactive flavonoid compounds of Strobilanthes crispus (Pecah Kaca) leaves obtained by using supercritical carbon dioxide (SC-CO2) extraction were investigated and the obtained crude extract yields were compared in order to select the best operation parameters. Since carbon dioxide is a non-polar solvent, ethanol was used as co-solvent to increase the polarity of the fluid. The studied parameters were pressure (100, 150 and 200 bar), temperature (40, 50 and 60 ◦C) and dynamic extraction time (40, 60 and 80 min). The optimum extraction condition occurred at 200 bar, 50 ◦C and 60 min. Based on the mean value, pressure had dominant effect on the extraction yield. Apart from the optimum SFE conditions two other conditions namely at minimum (100 bar, 40 ◦C, 40 min) and maximum (200 bar, 60 ◦C, 80 min) levels of each studied parameters as control runs were analyzed by HPLC to determine the major bioactive flavonoid compounds from S. crispus. Under the optimum conditions eight flavonoid compounds were identified; they were (+)-catechin, (−)-epicatechin, rutin, myricetin, luteolin, apigenin, naringenin and kaempferol. © 2009 The Institution of Chemical Engineers.

Item Type:Article
Uncontrolled Keywords:myricetin, luteolin, apigenin, naringenin
Subjects:T Technology > TX Home economics
Divisions:Chemical Engineering
ID Code:47560
Deposited By: Narimah Nawil
Deposited On:22 Jun 2015 13:56
Last Modified:25 Apr 2019 09:22

Repository Staff Only: item control page