alexa Gracilaria chilensis: Bioethanol Production and By-Product Characterization
ISSN: 2473-3350

Journal of Coastal Zone Management
Open Access

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Research Article

Gracilaria chilensis: Bioethanol Production and By-Product Characterization

Carmen Gloria Seguel1*, Emilio Soto1 and José Rojas2

1Tarapaca University, Department of Chemistry, Faculty of Science, Avda, General Velasquez 1775, Arica, Chile

2Technological University of Chile, INACAP, Av, Santa Maria 2190, Arica, Chile

*Corresponding Author:
Dr. Carmen Gloria Seguel
University of Tarapacá
Department of Chemistry
Faculty of Science, Avda
General Velasquez 1775, Arica, Chile
Tel: +56 58 2205448
Fax: +56 58 2205424
E-mail: [email protected]

Received date April 30, 2015; Accepted date May 27, 2015; Published date June 03, 2015

Citation: Seguel CG, Soto E, Rojas J (2015) Gracilaria chilensis: Bioethanol Production and By-Product Characterization. J Coast Zone Manag 18:403. doi:10.4172/2473-3350.1000403

Copyright: © 2015 Seguel CG, et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.



One of the most important challenges for the new global economy is to find new sources of bioenergy. Due to its photosynthetic efficiency and the possibility of biotransformation of its carbohydrates into bioethanol, seaweed plays an important role as a source of renewable biomass fuel. This paper aims firstly to assess Gracilaria chilensis (red algae) as a substrate for bioethanol production by using anaerobic fermentation with Saccharomyces cerevisiae, and then to characterize the by-products of this biotransformation. The main stage in the generation of solid byproducts is the hydrolysis with a yield about 50% w/w dry weigh. This by-product contains: fiber (42.7% w/w), proteins (39.95% w/w), carbohydrates (6.43% w/w), lipids (5.77% w/w), ashes (5.15% w/w) and a percentage of micronutrients P >K > Ca >Mg >Na in minor quantity than G. chilensis biomass.


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