Effects of supercritical fluid extraction conditions on yield of protein from defatted rice bran
In the present study, effect of different supercritical fluid extractor (SFE) operational conditions i.e. pressure (300, 450, 600 bars), flow rate (10.0, 17.5, 25.0 g/min), and intervals of extraction (30, 90, 150 min) at 60 °C on protein content of defatted rice bran (DRB) samples, has been evaluat...
| Main Authors: | , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
The Chemical Society of Pakistan
2013
|
| Online Access: | http://psasir.upm.edu.my/id/eprint/29524/ http://psasir.upm.edu.my/id/eprint/29524/1/Effects%20of%20supercritical%20fluid%20extraction%20conditions%20on%20yield%20of%20protein%20from%20defatted%20rice%20bran.pdf |
| _version_ | 1848846422476062720 |
|---|---|
| author | Foong, Lian Chee Iqbal, Shahid Ismail, Maznah |
| author_facet | Foong, Lian Chee Iqbal, Shahid Ismail, Maznah |
| author_sort | Foong, Lian Chee |
| building | UPM Institutional Repository |
| collection | Online Access |
| description | In the present study, effect of different supercritical fluid extractor (SFE) operational conditions i.e. pressure (300, 450, 600 bars), flow rate (10.0, 17.5, 25.0 g/min), and intervals of extraction (30, 90, 150 min) at 60 °C on protein content of defatted rice bran (DRB) samples, has been evaluated. The DRB samples were collected from SFE vessel and analyzed for their moisture, residual fat and protein contents. The protein content was determined by Kjeldahl method and ranged over 15.59 to 17.44%, while moisture content was determined by drying method and found to be ranging from 7.84 to 9.88%, and residual fat content was determined by Soxhlet method and varied over 4.67 to 18.94%. Differences were selectively significant (p > 0.05) among the protein, residual fat, and moisture contents, as function of extraction conditions. Highest yield of protein was obtained at 450 bars, 90 min extraction time, and 17.5 g/min flow rate, while the lowest at 300 bars, 30 min of extraction time, and 10.0 g/min flow rate. Negative correlation with p-value ≤ 0.05 was found between moisture content and residual fat content of DRB. However, no correlation could be observed among protein, moisture and residual fat contents of DRB, respectively. The study demonstrates that SFE conditions have non-significant impact on the yield of protein in defatted materials. |
| first_indexed | 2025-11-15T09:02:28Z |
| format | Article |
| id | upm-29524 |
| institution | Universiti Putra Malaysia |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-15T09:02:28Z |
| publishDate | 2013 |
| publisher | The Chemical Society of Pakistan |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | upm-295242016-07-12T09:23:41Z http://psasir.upm.edu.my/id/eprint/29524/ Effects of supercritical fluid extraction conditions on yield of protein from defatted rice bran Foong, Lian Chee Iqbal, Shahid Ismail, Maznah In the present study, effect of different supercritical fluid extractor (SFE) operational conditions i.e. pressure (300, 450, 600 bars), flow rate (10.0, 17.5, 25.0 g/min), and intervals of extraction (30, 90, 150 min) at 60 °C on protein content of defatted rice bran (DRB) samples, has been evaluated. The DRB samples were collected from SFE vessel and analyzed for their moisture, residual fat and protein contents. The protein content was determined by Kjeldahl method and ranged over 15.59 to 17.44%, while moisture content was determined by drying method and found to be ranging from 7.84 to 9.88%, and residual fat content was determined by Soxhlet method and varied over 4.67 to 18.94%. Differences were selectively significant (p > 0.05) among the protein, residual fat, and moisture contents, as function of extraction conditions. Highest yield of protein was obtained at 450 bars, 90 min extraction time, and 17.5 g/min flow rate, while the lowest at 300 bars, 30 min of extraction time, and 10.0 g/min flow rate. Negative correlation with p-value ≤ 0.05 was found between moisture content and residual fat content of DRB. However, no correlation could be observed among protein, moisture and residual fat contents of DRB, respectively. The study demonstrates that SFE conditions have non-significant impact on the yield of protein in defatted materials. The Chemical Society of Pakistan 2013 Article PeerReviewed application/pdf en http://psasir.upm.edu.my/id/eprint/29524/1/Effects%20of%20supercritical%20fluid%20extraction%20conditions%20on%20yield%20of%20protein%20from%20defatted%20rice%20bran.pdf Foong, Lian Chee and Iqbal, Shahid and Ismail, Maznah (2013) Effects of supercritical fluid extraction conditions on yield of protein from defatted rice bran. Journal of the Chemical Society of Pakistan, 35 (1). pp. 192-197. ISSN 0253-5106 http://jcsp.org.pk/ViewByVolume.aspx?v=190&i=VOLUME%2035,%20NO1,%20FEB%202013 |
| spellingShingle | Foong, Lian Chee Iqbal, Shahid Ismail, Maznah Effects of supercritical fluid extraction conditions on yield of protein from defatted rice bran |
| title | Effects of supercritical fluid extraction conditions on yield of protein from defatted rice bran |
| title_full | Effects of supercritical fluid extraction conditions on yield of protein from defatted rice bran |
| title_fullStr | Effects of supercritical fluid extraction conditions on yield of protein from defatted rice bran |
| title_full_unstemmed | Effects of supercritical fluid extraction conditions on yield of protein from defatted rice bran |
| title_short | Effects of supercritical fluid extraction conditions on yield of protein from defatted rice bran |
| title_sort | effects of supercritical fluid extraction conditions on yield of protein from defatted rice bran |
| url | http://psasir.upm.edu.my/id/eprint/29524/ http://psasir.upm.edu.my/id/eprint/29524/ http://psasir.upm.edu.my/id/eprint/29524/1/Effects%20of%20supercritical%20fluid%20extraction%20conditions%20on%20yield%20of%20protein%20from%20defatted%20rice%20bran.pdf |