The culture of Chlorella vulgaris in a recycled supernatant: Effects on biomass production and medium quality
Reusing supernatant of microalgae culture medium can have inhibitory or toxic effects on the biomass production because of the release of organic metabolites by cells in the culture medium during their growth. This work investigated the impact of Chlorella vulgaris medium recycling on culture produc...
| Main Authors: | , , , , , , |
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| Format: | Journal Article |
| Published: |
Elsevier BV
2013
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| Online Access: | http://hdl.handle.net/20.500.11937/50111 |
| _version_ | 1848758396536225792 |
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| author | Hadj-Romdhane, F. Zheng, X. Jaouen, P. Pruvost, J. Grizeau, D. Croué, Jean-Philippe Bourseau, P. |
| author_facet | Hadj-Romdhane, F. Zheng, X. Jaouen, P. Pruvost, J. Grizeau, D. Croué, Jean-Philippe Bourseau, P. |
| author_sort | Hadj-Romdhane, F. |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | Reusing supernatant of microalgae culture medium can have inhibitory or toxic effects on the biomass production because of the release of organic metabolites by cells in the culture medium during their growth. This work investigated the impact of Chlorella vulgaris medium recycling on culture productivity, cells quality and accumulation of excreted metabolites in the culture medium. No significant impact on the C. vulgaris growth was observed after 63days of recycling, the productivity remained stable at around 0.55kgm-3day-1. Organic matters accumulated in supernatant were identified as biopolymers (BP) poor in nitrogen and with a size above 40kDa (probably polysaccharides), and small organic molecules (SOM) richer in nitrogen with a molecular size ranging from 1 to 3kDa. The concentration of biopolymers in the supernatant increased till to a maximum and then decreased, possibly consumed by bacteria, whereas small organic compounds accumulated in the medium. |
| first_indexed | 2025-11-14T09:43:19Z |
| format | Journal Article |
| id | curtin-20.500.11937-50111 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T09:43:19Z |
| publishDate | 2013 |
| publisher | Elsevier BV |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-501112017-09-13T15:40:42Z The culture of Chlorella vulgaris in a recycled supernatant: Effects on biomass production and medium quality Hadj-Romdhane, F. Zheng, X. Jaouen, P. Pruvost, J. Grizeau, D. Croué, Jean-Philippe Bourseau, P. Reusing supernatant of microalgae culture medium can have inhibitory or toxic effects on the biomass production because of the release of organic metabolites by cells in the culture medium during their growth. This work investigated the impact of Chlorella vulgaris medium recycling on culture productivity, cells quality and accumulation of excreted metabolites in the culture medium. No significant impact on the C. vulgaris growth was observed after 63days of recycling, the productivity remained stable at around 0.55kgm-3day-1. Organic matters accumulated in supernatant were identified as biopolymers (BP) poor in nitrogen and with a size above 40kDa (probably polysaccharides), and small organic molecules (SOM) richer in nitrogen with a molecular size ranging from 1 to 3kDa. The concentration of biopolymers in the supernatant increased till to a maximum and then decreased, possibly consumed by bacteria, whereas small organic compounds accumulated in the medium. 2013 Journal Article http://hdl.handle.net/20.500.11937/50111 10.1016/j.biortech.2013.01.025 Elsevier BV restricted |
| spellingShingle | Hadj-Romdhane, F. Zheng, X. Jaouen, P. Pruvost, J. Grizeau, D. Croué, Jean-Philippe Bourseau, P. The culture of Chlorella vulgaris in a recycled supernatant: Effects on biomass production and medium quality |
| title | The culture of Chlorella vulgaris in a recycled supernatant: Effects on biomass production and medium quality |
| title_full | The culture of Chlorella vulgaris in a recycled supernatant: Effects on biomass production and medium quality |
| title_fullStr | The culture of Chlorella vulgaris in a recycled supernatant: Effects on biomass production and medium quality |
| title_full_unstemmed | The culture of Chlorella vulgaris in a recycled supernatant: Effects on biomass production and medium quality |
| title_short | The culture of Chlorella vulgaris in a recycled supernatant: Effects on biomass production and medium quality |
| title_sort | culture of chlorella vulgaris in a recycled supernatant: effects on biomass production and medium quality |
| url | http://hdl.handle.net/20.500.11937/50111 |