Microalgal production under mixotrophic conditions using cheese whey as substrate
Microalgae are known for producing various biotechnological products. Moreover, they absorb nutrients from dairy wastewater, grow well, and accumulate valuable compounds faster. In this study, photoautotrophic and mixotrophic cultivation with different initial lactose concentrations present in chee...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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Universidade Estadual de Maringá
2022-10-01
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| Series: | Acta Scientiarum: Biological Sciences |
| Subjects: | |
| Online Access: | https://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/62512 |
| _version_ | 1811247783513948160 |
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| author | Alexsandra Frazao de Andrade Páblo Eugênio da Costa e Silva Rebeca Gonçalves de Melo Millena Patrício do Nascimento Ferreira Ana Lúcia Figueiredo Porto Raquel Pedrosa Bezerra |
| author_facet | Alexsandra Frazao de Andrade Páblo Eugênio da Costa e Silva Rebeca Gonçalves de Melo Millena Patrício do Nascimento Ferreira Ana Lúcia Figueiredo Porto Raquel Pedrosa Bezerra |
| author_sort | Alexsandra Frazao de Andrade |
| collection | DOAJ |
| description |
Microalgae are known for producing various biotechnological products. Moreover, they absorb nutrients from dairy wastewater, grow well, and accumulate valuable compounds faster. In this study, photoautotrophic and mixotrophic cultivation with different initial lactose concentrations present in cheese whey (CW) were established to investigate their effect on cell concentration (Xm, mg L-1), cell productivity (Px, mg L-1day-1), and specific cell growth (µmax, day-1) of Chlorella vulgaris, Dunaliella tertiolecta, and Tetradesmus obliquus. The biomass production of C. vulgaris (Xm= 1,520 ± 30.3 mg L-1, Px = 147 ± 3.00 mg L-1, and µmax = 0.150 ± 0.00 mg L-1) in mixotrophic culture with 10.0 g L-1 of lactose, the main constituent of CW, was notably enhanced by 55% in comparison with their photoautotrophic cultures, whereas a lower effect of these lactose concentrations on cell growth was observed in T. obliquus and D. tertiolecta. Thus, mixotrophic cultivation of C. vulgaris using CW as a carbon and energy source could be considered a feasible alternative to obtain high value-added biomass.
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| first_indexed | 2024-04-12T15:15:32Z |
| format | Article |
| id | doaj.art-bf1b8fa884b140b181f7f70f0708b298 |
| institution | Directory Open Access Journal |
| issn | 1679-9283 1807-863X |
| language | English |
| last_indexed | 2024-04-12T15:15:32Z |
| publishDate | 2022-10-01 |
| publisher | Universidade Estadual de Maringá |
| record_format | Article |
| series | Acta Scientiarum: Biological Sciences |
| spelling | doaj.art-bf1b8fa884b140b181f7f70f0708b2982022-12-22T03:27:37ZengUniversidade Estadual de MaringáActa Scientiarum: Biological Sciences1679-92831807-863X2022-10-0144110.4025/actascibiolsci.v44i1.62512Microalgal production under mixotrophic conditions using cheese whey as substrateAlexsandra Frazao de Andrade0Páblo Eugênio da Costa e Silva1Rebeca Gonçalves de Melo2Millena Patrício do Nascimento Ferreira3Ana Lúcia Figueiredo Porto4Raquel Pedrosa Bezerra5Universidade Federal Rural de PernambucoUniversidade Federal de PernambucoUniversidade Federal de PernambucoUniversidade Federal Rural de PernambucoUniversidade Federal Rural de PernambucoUniversidade Federal Rural de Pernambuco Microalgae are known for producing various biotechnological products. Moreover, they absorb nutrients from dairy wastewater, grow well, and accumulate valuable compounds faster. In this study, photoautotrophic and mixotrophic cultivation with different initial lactose concentrations present in cheese whey (CW) were established to investigate their effect on cell concentration (Xm, mg L-1), cell productivity (Px, mg L-1day-1), and specific cell growth (µmax, day-1) of Chlorella vulgaris, Dunaliella tertiolecta, and Tetradesmus obliquus. The biomass production of C. vulgaris (Xm= 1,520 ± 30.3 mg L-1, Px = 147 ± 3.00 mg L-1, and µmax = 0.150 ± 0.00 mg L-1) in mixotrophic culture with 10.0 g L-1 of lactose, the main constituent of CW, was notably enhanced by 55% in comparison with their photoautotrophic cultures, whereas a lower effect of these lactose concentrations on cell growth was observed in T. obliquus and D. tertiolecta. Thus, mixotrophic cultivation of C. vulgaris using CW as a carbon and energy source could be considered a feasible alternative to obtain high value-added biomass. https://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/62512dairy waste; by-product; lactose, Chlorophyceae. |
| spellingShingle | Alexsandra Frazao de Andrade Páblo Eugênio da Costa e Silva Rebeca Gonçalves de Melo Millena Patrício do Nascimento Ferreira Ana Lúcia Figueiredo Porto Raquel Pedrosa Bezerra Microalgal production under mixotrophic conditions using cheese whey as substrate Acta Scientiarum: Biological Sciences dairy waste; by-product; lactose, Chlorophyceae. |
| title | Microalgal production under mixotrophic conditions using cheese whey as substrate |
| title_full | Microalgal production under mixotrophic conditions using cheese whey as substrate |
| title_fullStr | Microalgal production under mixotrophic conditions using cheese whey as substrate |
| title_full_unstemmed | Microalgal production under mixotrophic conditions using cheese whey as substrate |
| title_short | Microalgal production under mixotrophic conditions using cheese whey as substrate |
| title_sort | microalgal production under mixotrophic conditions using cheese whey as substrate |
| topic | dairy waste; by-product; lactose, Chlorophyceae. |
| url | https://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/62512 |
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