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| Content Provider | Springer Nature Link |
|---|---|
| Author | Aouidi, Fathia Khelifi, Eltaeif Asses, Nedra Ayed, Lamia Hamdi, Moktar |
| Copyright Year | 2010 |
| Abstract | Geotrichum candidum is a yeast-like filamentous fungus that has attracted industrial interest. The present work investigated G. candidum biomass production in agro-industrial wastewaters (olive mill wastewater (OMW) and cheese whey (CW)) as the only substrate. Different solid media (Sabouraud dextrose agar (SDA), CW, OMW, and OMW/CW mixtures in different proportions) were tested. OMW/CW mixtures proved to be suitable for optimal mycelia growth of G. candidum with a very high hyphae density. The highest fungal and expansion rate growth of 83 ± 1 mm and 12.4 day−1, respectively, were obtained on a 20:80 mixture of OMW/CW, which was incubated for 7 days. This optimal mixture was used to study the biomass production and the OMW decolorization ability of G. candidum in the presence of CW in liquid medium. Liquid cultures were also conducted in OMW and CW separately. After 5 days of incubation, fungal biomass reached 9.26 g l−1 in the OMW/CW mixture and only 2.83 g l−1 in CW, while no biomass production was observed in OMW alone. OMW decolorization and dephenolization by G. candidum also improved in the presence of CW with a decolorization efficiency of 54.5% and a total phenolic reduction of 55.3%, compared with the control which yielded values of about 10% and 15%, respectively. These results suggested that OMW/CW—as the only substrate—could be used as a cost-effective medium to produce G. candidum biomass, without the need for water dilution or supplementation with other nutriments. |
| Starting Page | 877 |
| Ending Page | 882 |
| Page Count | 6 |
| File Format | |
| ISSN | 13675435 |
| Journal | Journal of Industrial Microbiology and Biotechnology |
| Volume Number | 37 |
| Issue Number | 8 |
| e-ISSN | 14765535 |
| Language | English |
| Publisher | Springer-Verlag |
| Publisher Date | 2010-06-06 |
| Publisher Place | Berlin, Heidelberg |
| Access Restriction | Subscribed |
| Subject Keyword | Olive mill wastewater (OMW) Cheese whey (CW) Geotrichum candidum biomass production Decolorization Valorization Microbiology Bioinformatics Biotechnology Genetic Engineering Inorganic Chemistry Biochemistry |
| Content Type | Text |
| Resource Type | Article |
| Subject | Medicine Bioengineering Applied Microbiology and Biotechnology Biotechnology |
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