Isolation and screening of potential microorganisms for citric acid production from sewage treatment plant sludge
The better utilization of sewage treatment (STP) sludge through value added products is being considered to be an alternative cost effective solution for waste management. The study emphasized on isolation of filamentous fungi especially Aspergillus from STP sludge for better adaptability. Liquid st...
| Main Authors: | , , , |
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| Format: | Proceeding Paper |
| Language: | English |
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2005
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| Online Access: | http://irep.iium.edu.my/16818/ http://irep.iium.edu.my/16818/1/ABS_2005_Citric_acid.pdf |
| _version_ | 1848777946733477888 |
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| author | Jamal, Parveen Alam, Md. Zahangir Mohd Salleh, Mohammad Ramlan M. Akib, Munirah |
| author_facet | Jamal, Parveen Alam, Md. Zahangir Mohd Salleh, Mohammad Ramlan M. Akib, Munirah |
| author_sort | Jamal, Parveen |
| building | IIUM Repository |
| collection | Online Access |
| description | The better utilization of sewage treatment (STP) sludge through value added products is being considered to be an alternative cost effective solution for waste management. The study emphasized on isolation of filamentous fungi especially Aspergillus from STP sludge for better adaptability. Liquid state fermentation process was used forthe production of citric acid. Six strains of Aspergillus niger (A-SS101, A-SS102, A-SS104, A-SS105, A-SS106 and A-SS-107) were isolated from STP sludge and identified using slide culture technique followed by image analysis. Four strains were screened under controlled fermentation conditions such as pH range of 2-3, temperature 30 degree celcius and agitation 150 rpm, using the substrate of STP sludge (1% of total suspended solids, TSS), 2% (w/v) co-substrate (wheat flour) with inoculum's size of 2% (10^8 spores/ml). Evaluation of fungal potentiality was done in terms of maximum citric acid production, biosolid production (TSS %) and removal of chemical oxygen demand (COD). Strain A-SS106 produced the highest concentration of citric acid (0.14 g/L), TSS (15.18 g/L) and COD removal (90.1%) followed by SC906, A-SS106, A1020 and A103 on fourth day of fermentation. |
| first_indexed | 2025-11-14T14:54:04Z |
| format | Proceeding Paper |
| id | iium-16818 |
| institution | International Islamic University Malaysia |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-14T14:54:04Z |
| publishDate | 2005 |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | iium-168182024-12-24T07:34:14Z http://irep.iium.edu.my/16818/ Isolation and screening of potential microorganisms for citric acid production from sewage treatment plant sludge Jamal, Parveen Alam, Md. Zahangir Mohd Salleh, Mohammad Ramlan M. Akib, Munirah TA170 Environmental engineering. Sustainable engineering TD Environmental technology. Sanitary engineering TP248.13 Biotechnology The better utilization of sewage treatment (STP) sludge through value added products is being considered to be an alternative cost effective solution for waste management. The study emphasized on isolation of filamentous fungi especially Aspergillus from STP sludge for better adaptability. Liquid state fermentation process was used forthe production of citric acid. Six strains of Aspergillus niger (A-SS101, A-SS102, A-SS104, A-SS105, A-SS106 and A-SS-107) were isolated from STP sludge and identified using slide culture technique followed by image analysis. Four strains were screened under controlled fermentation conditions such as pH range of 2-3, temperature 30 degree celcius and agitation 150 rpm, using the substrate of STP sludge (1% of total suspended solids, TSS), 2% (w/v) co-substrate (wheat flour) with inoculum's size of 2% (10^8 spores/ml). Evaluation of fungal potentiality was done in terms of maximum citric acid production, biosolid production (TSS %) and removal of chemical oxygen demand (COD). Strain A-SS106 produced the highest concentration of citric acid (0.14 g/L), TSS (15.18 g/L) and COD removal (90.1%) followed by SC906, A-SS106, A1020 and A103 on fourth day of fermentation. 2005-06-22 Proceeding Paper PeerReviewed application/pdf en http://irep.iium.edu.my/16818/1/ABS_2005_Citric_acid.pdf Jamal, Parveen and Alam, Md. Zahangir and Mohd Salleh, Mohammad Ramlan and M. Akib, Munirah (2005) Isolation and screening of potential microorganisms for citric acid production from sewage treatment plant sludge. In: The 8th Applied Biology Symposium 2005, 22nd - 23rd June 2005, Marriot, Putrajaya. |
| spellingShingle | TA170 Environmental engineering. Sustainable engineering TD Environmental technology. Sanitary engineering TP248.13 Biotechnology Jamal, Parveen Alam, Md. Zahangir Mohd Salleh, Mohammad Ramlan M. Akib, Munirah Isolation and screening of potential microorganisms for citric acid production from sewage treatment plant sludge |
| title | Isolation and screening of potential microorganisms for citric acid production from sewage treatment plant sludge |
| title_full | Isolation and screening of potential microorganisms for citric acid production from sewage treatment plant sludge |
| title_fullStr | Isolation and screening of potential microorganisms for citric acid production from sewage treatment plant sludge |
| title_full_unstemmed | Isolation and screening of potential microorganisms for citric acid production from sewage treatment plant sludge |
| title_short | Isolation and screening of potential microorganisms for citric acid production from sewage treatment plant sludge |
| title_sort | isolation and screening of potential microorganisms for citric acid production from sewage treatment plant sludge |
| topic | TA170 Environmental engineering. Sustainable engineering TD Environmental technology. Sanitary engineering TP248.13 Biotechnology |
| url | http://irep.iium.edu.my/16818/ http://irep.iium.edu.my/16818/1/ABS_2005_Citric_acid.pdf |