A cost-effective strategy for the bio-prospecting of mixed microalgae with high carbohydrate content: Diversity fluctuations in different growth media

Glenda Cea-Barcia, Germán Buitrón, Gloria Moreno, Gopalakrishnan Kumar

Research output: Contribution to journalArticle

31 Citations (Scopus)

Abstract

In recent years, widespread efforts have been directed towards decreasing the costs associated with microalgae culture systems for the production of biofuels. In this study, a simple and inexpensive strategy to bio-prospect and cultivate mixed indigenous chlorophytes with a high carbohydrate content for biomethane and biohydrogen production was developed. Mixed microalgae were collected from four different water-bodies in Queretaro, Mexico, and were grown in Bold's basal mineral medium and secondary effluent from a wastewater treatment plant using inexpensive photo-bioreactors. The results showed large fluctuations in microalgal genera diversity based on different culture media and nitrogen sources. In secondary effluent, Golenkinia sp. and Scenedesmus sp. proliferated. The carbohydrate content, for secondary effluent, varied between 12% and 57%, and the highest volumetric and areal productivity were 61mgL-1d-1 and 4.6gm-2d-1, respectively. These results indicate that mixed microalgae are a good feedstock for biomethane and biohydrogen production.

Original languageEnglish
Pages (from-to)370-373
Number of pages4
JournalBioresource technology
Volume163
DOIs
Publication statusPublished - 2014 Jul

All Science Journal Classification (ASJC) codes

  • Bioengineering
  • Environmental Engineering
  • Renewable Energy, Sustainability and the Environment
  • Waste Management and Disposal

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