| dc.contributor.author | Hayder Khaleel, Qurban Ali | |
| dc.contributor.author | Mohamed Zulkali, Mohamed Daud | |
| dc.contributor.author | Zinah, Al-Azzawi | |
| dc.date.accessioned | 2013-01-15T03:15:43Z | |
| dc.date.available | 2013-01-15T03:15:43Z | |
| dc.date.issued | 2012 | |
| dc.identifier.citation | Turkish Journal of Engineering and Environmental Sciences, vol. 36 (1), 2012, pages 81-93 | en_US |
| dc.identifier.issn | 1300-0160 | |
| dc.identifier.uri | http://journals.tubitak.gov.tr/engineering/issues/muh-12-36-1/muh-36-1-7-1101-8.pdf | |
| dc.identifier.uri | http://dspace.unimap.edu.my/123456789/22965 | |
| dc.description | Link to publisher's homepage at http://www.tubitak.gov.tr/ | en_US |
| dc.description.abstract | An economic study was carried out to show the benefits of optimization during the production of
citric acid from rice straw as a substrate by solid-state fermentation (SSF) using Aspergillus niger. The
optimization procedure for the media components (NH4NO3, KH2PO4, MgSO4 , CuSO4 , ZnSO4, FeSO4 ,
and MnSO4) was carried out using Plackett-Burman design (PBD) for the screening and central composite
design (CCD) for the optimization. The results obtained from PBD indicated that NH4NO3, KH2PO4 ,
and MgSO4 were the most significant components that affected the citric acid production. The maximum
yield obtained by CCD was 50.23 g citric acid/kg rice straw. The rate of citric acid production by SSF after
the optimization indicated a profit of about 65% for SSF without any nutrient addition and of about 27%
for SSF without optimization. | en_US |
| dc.language.iso | en | en_US |
| dc.publisher | TÜBİTAK. | en_US |
| dc.subject | Citric acid | en_US |
| dc.subject | Solid-state fermentation | en_US |
| dc.subject | Rice straw | en_US |
| dc.subject | Plackett-Burman design | en_US |
| dc.subject | Central composite design | en_US |
| dc.title | Economic benefit from the optimization of citric acid production from rice straw through Plackett-Burman design and central composite design | en_US |
| dc.type | Article | en_US |
| dc.contributor.url | dr.hayder ali74@yahoo.com | en_US |
