Affiliation:
1. Center of Biofuels, Petroleum and Derivatives, School of Chemistry, Federal University of Rio de Janeiro, Rio de Janeiro 21941-972, RJ, Brazil
Abstract
The evaluation of macroalgae as a new raw material for diverse bioprocesses is of great interest due to their fast growth rate and low environmental impact. Lactic acid has a high value in the bio-based industry and is mainly produced via fermentation. The anaerobic lactic acid fermentation of Kappaphycus alvarezii hydrolysates using the high-producing strain Lactobacillus pentosus was evaluated for detoxified and non-treated hydrolysates prepared from concentrated algal biomass and dilute acid solution mixtures. A novel hydrolysate detoxification procedure, combining activated charcoal and over-liming, for 5-hydroxymethylfurfural (HMF) removal was used. L. pentosus was found to successfully ferment detoxified and untreated hydrolysates produced in up to 30% and 20% w/v solutions, respectively. Significant production rates (1.88 g/L.h) and short lag phases were achieved in bioreactor fermentation operating at 37 °C and pH 6 with 150 rpm impeller velocity. A 0.94 g/g yield from fermentable sugars (galactose and glucose) was achieved, indicating that K. alvarezii could be used as a raw material for lactic acid production, within the context of Third Generation (3G) biorefinery.
Subject
Plant Science,Biochemistry, Genetics and Molecular Biology (miscellaneous),Food Science
Reference67 articles.
1. Seaweeds: An Opportunity for Wealth and Sustainable Livelihood for Coastal Communities;Rebours;J. Appl. Phycol.,2014
2. Seaweed Production: Overview of the Global State of Exploitation, Farming and Emerging Research Activity;Buschmann;Eur. J. Phycol.,2017
3. Biorefinery of Marine Macroalgae into High-Tech Bioproducts: A Review;Filote;Environ. Chem. Lett.,2021
4. Ziolkowska, J., Simon, L., and Zilberman, D. (September, January 30). Capturing Uncertainties in Evaluation of Biofuels Feedstocks: A Multi-Criteria Approach for the US. Proceedings of the 2011 International Congress, Zurich, Switzerland.
5. Advanced Biofuels: Future Perspectives from an Expert Elicitation Survey;Fiorese;Energy Policy,2013
Cited by
2 articles.
订阅此论文施引文献
订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献