Microalgal biomass as a fermentation feedstock for bioethanol production

Michael Kobina Danquah, Gareth Forde, Mohd Razif Harun

Research output: Contribution to journalArticleResearchpeer-review

492 Citations (Scopus)


Abstract BACKGROUND: The increasing cost of fossil fuels as well as the escalating social and industrial awareness of the environmental impacts associated with the use of fossil fuels has created the need for more sustainable fuel options. Bioethanol, produced from renewable biomass such as sugar and starch materials, is believed to be one of these options, and it is currently being harnessed extensively. However, the utilization of sugar and starch materials as feedstocks for bioethanol production creates a major competition with the food market in terms of land for cultivation, and this makes bioethanol from these sources economically less attractive. RESULT: This study explores the suitability of microalgae (Chlorococum sp.) as a substrate for bioethanol production via yeast (Saccharomyces bayanus) under different fermentation conditions. Results show a maximum ethanol concentration of 3.83 g L-1 obtained from 10 g L-1 of lipid-extracted microalgae debris. CONCLUSION: This productivity level (38 w/w), which is in keeping with that of current production systems endorses microalgae as a promising substrate for bioethanol production.
Original languageEnglish
Pages (from-to)199 - 203
Number of pages5
JournalJournal of Chemical Technology and Biotechnology
Issue number2
Publication statusPublished - 2010

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