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Mixotrophic growth regime as a strategy to develop microalgal bioprocess from nutrimental composition of tequila vinasses.
- Source :
-
Bioprocess and biosystems engineering [Bioprocess Biosyst Eng] 2021 Jun; Vol. 44 (6), pp. 1155-1166. Date of Electronic Publication: 2021 Feb 11. - Publication Year :
- 2021
-
Abstract
- The selection of a suitable growth regime can increase the physiological performance of microalgae and improve bioprocess based on these microorganisms from agro-industrial residues. Thus, this study assessed the biotechnology capacity-biomass production, biochemical composition, and nutrient uptake-from tequila vinasses (TVs) as the nutrient source of three indigenous microalgae-Chlorella sp., Scenedesmus sp., and Chlamydomonas sp.-cultured under heterotrophic and mixotrophic conditions. The results demonstrated that under the mixotrophic regime, the three microalgae evaluated reached the highest nitrogen uptake, biomass production, and cell compound accumulation. Under this condition, Chlorella sp. and Scenedesmus sp. showed the highest nutrient uptake and biomass production, 1.7 ± 0.3 and 1.9 ± 0.3 g L <superscript>-1</superscript> , respectively; however, the biochemical composition, mainly carbohydrates and proteins, varied depending on the microalgal strain and its growth regime. Overall, our results demonstrated the biotechnological capacity of native microalgae from TVs, which may vary not only depending on the microalgal strain but also the culture strategy implemented and the characteristics of the residue used, highlighting-from a perspective of circular bio-economy-the feasibility of implementing microalgal bioprocess to reuse and valorize the nutrimental composition of TVs through biomass and high-valuable metabolite production, depicting a sustainable strategy for tequila agro-industry in Mexico.
Details
- Language :
- English
- ISSN :
- 1615-7605
- Volume :
- 44
- Issue :
- 6
- Database :
- MEDLINE
- Journal :
- Bioprocess and biosystems engineering
- Publication Type :
- Academic Journal
- Accession number :
- 33575841
- Full Text :
- https://doi.org/10.1007/s00449-021-02512-y