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Cultivation and energy efficient harvesting of microalgae using thermoreversible sol-gel transition
Microalgae represent a promising source of renewable biomass for the production of biofuels and valuable chemicals. However, energy efficient cultivation and harvesting technologies are necessary to improve economic viability. A Tris-Acetate-Phosphate-Pluronic (TAPP) medium that undergoes a thermore...
Autores principales: | , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Nature Publishing Group
2017
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5244363/ https://www.ncbi.nlm.nih.gov/pubmed/28102313 http://dx.doi.org/10.1038/srep40725 |
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author | Estime, Bendy Ren, Dacheng Sureshkumar, Radhakrishna |
author_facet | Estime, Bendy Ren, Dacheng Sureshkumar, Radhakrishna |
author_sort | Estime, Bendy |
collection | PubMed |
description | Microalgae represent a promising source of renewable biomass for the production of biofuels and valuable chemicals. However, energy efficient cultivation and harvesting technologies are necessary to improve economic viability. A Tris-Acetate-Phosphate-Pluronic (TAPP) medium that undergoes a thermoreversible sol-gel transition is developed to efficiently culture and harvest microalgae without affecting the productivity as compared to that in traditional culture in a well-mixed suspension. After seeding microalgae in the TAPP medium in a solution phase at 15 °C, the temperature is increased by 7 °C to induce gelation. Within the gel, microalgae are observed to grow in large clusters rather than as isolated cells. The settling velocity of the microalgal clusters is approximately ten times larger than that of individual cells cultured in typical solution media. Such clusters are easily harvested gravimetrically by decreasing the temperature to bring the medium to a solution phase. |
format | Online Article Text |
id | pubmed-5244363 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2017 |
publisher | Nature Publishing Group |
record_format | MEDLINE/PubMed |
spelling | pubmed-52443632017-01-23 Cultivation and energy efficient harvesting of microalgae using thermoreversible sol-gel transition Estime, Bendy Ren, Dacheng Sureshkumar, Radhakrishna Sci Rep Article Microalgae represent a promising source of renewable biomass for the production of biofuels and valuable chemicals. However, energy efficient cultivation and harvesting technologies are necessary to improve economic viability. A Tris-Acetate-Phosphate-Pluronic (TAPP) medium that undergoes a thermoreversible sol-gel transition is developed to efficiently culture and harvest microalgae without affecting the productivity as compared to that in traditional culture in a well-mixed suspension. After seeding microalgae in the TAPP medium in a solution phase at 15 °C, the temperature is increased by 7 °C to induce gelation. Within the gel, microalgae are observed to grow in large clusters rather than as isolated cells. The settling velocity of the microalgal clusters is approximately ten times larger than that of individual cells cultured in typical solution media. Such clusters are easily harvested gravimetrically by decreasing the temperature to bring the medium to a solution phase. Nature Publishing Group 2017-01-19 /pmc/articles/PMC5244363/ /pubmed/28102313 http://dx.doi.org/10.1038/srep40725 Text en Copyright © 2017, The Author(s) http://creativecommons.org/licenses/by/4.0/ This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/ |
spellingShingle | Article Estime, Bendy Ren, Dacheng Sureshkumar, Radhakrishna Cultivation and energy efficient harvesting of microalgae using thermoreversible sol-gel transition |
title | Cultivation and energy efficient harvesting of microalgae using thermoreversible sol-gel transition |
title_full | Cultivation and energy efficient harvesting of microalgae using thermoreversible sol-gel transition |
title_fullStr | Cultivation and energy efficient harvesting of microalgae using thermoreversible sol-gel transition |
title_full_unstemmed | Cultivation and energy efficient harvesting of microalgae using thermoreversible sol-gel transition |
title_short | Cultivation and energy efficient harvesting of microalgae using thermoreversible sol-gel transition |
title_sort | cultivation and energy efficient harvesting of microalgae using thermoreversible sol-gel transition |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5244363/ https://www.ncbi.nlm.nih.gov/pubmed/28102313 http://dx.doi.org/10.1038/srep40725 |
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