Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/33883
PIRA download icon_1.1View/Download Full Text
Title: Ultrasound assisted supercritical fluid extraction of oil and coixenolide from adlay seed
Authors: Hu, AJ
Zhao, S
Liang, H 
Qiu, TQ
Chen, G
Issue Date: 2007
Source: Ultrasonics sonochemistry, 2007, v. 14, no. 2, p. 219-224
Abstract: Oil and coixenolide are important components of adlay seed (Coix lachrymal-jobi L. var. Adlay) with many beneficial functions to human health. In this work, a novel extraction technique-ultrasound assisted supercritical fluid extraction (USFE)-was studied. Effects of operating conditions on the extraction, including extraction temperature (T), pressure (P), time (t), CO2 flow rate (F) and ultrasonic power (I) were investigated. There are optimum temperatures which gives the maximum extraction yields (EYs) for the supercritical fluid extractions with and without ultrasound. The effect of pressure on EYs for is similar to that of pressure on CO2 density. Based on the yield of extraction, the favorable conditions for supercritical fluid extraction (SFE) were: T at 45 °C, P at 25 MPa, t at 4.0 h and F at 3.5 L/h. While ultrasound was applied as in USFE, the following parameters were preferred: T at 40 °C, P at 20 MPa, t at 3.5 h and F at 3.0 L/h, respectively. The results show that supercritical fluid extraction with the assistance of ultrasound could reduce the temperature, pressure, CO2 flow rate, as well as time used in the process. Compared with SFE, USFE could give a 14% increase in the yield for extracting oil and coixenolide from adlay seed with less severe operating conditions.
Keywords: Adlay seed
Coixenolide
Oil
Supercritical fluid extraction
Ultrasound
Publisher: Elsevier
Journal: Ultrasonics sonochemistry 
ISSN: 1350-4177
DOI: 10.1016/j.ultsonch.2006.03.005
Rights: © 2006 Elsevier B.V.
This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/)
The following publication Hu, A. J., Zhao, S., Liang, H., Qiu, T. Q., & Chen, G. (2007). Ultrasound assisted supercritical fluid extraction of oil and coixenolide from adlay seed. Ultrasonics sonochemistry, 14(2), 219-224 is available at https://doi.org/10.1016/j.ultsonch.2006.03.005
Appears in Collections:Journal/Magazine Article

Files in This Item:
File Description SizeFormat 
Hu_Ultrasound_Assisted_Supercritical.pdf172.57 kBAdobe PDFView/Open
Open Access Information
Status open access
File Version Version of Record
Access
View full-text via PolyU eLinks SFX Query
Show full item record

Page views

151
Last Week
1
Last month
Citations as of Mar 17, 2024

Downloads

81
Citations as of Mar 17, 2024

SCOPUSTM   
Citations

105
Last Week
1
Last month
1
Citations as of Mar 14, 2024

WEB OF SCIENCETM
Citations

91
Last Week
0
Last month
1
Citations as of Mar 14, 2024

Google ScholarTM

Check

Altmetric


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