Journal
APPLIED BIOCHEMISTRY AND BIOTECHNOLOGY
Volume 161, Issue 1-8, Pages 41-52Publisher
SPRINGER
DOI: 10.1007/s12010-009-8795-5
Keywords
Marine biomass; Gelidium amansii; Response surface methodology; Chemical intermediates; Levulinic acid; Sugar
Funding
- National Research Foundation of Korea (NRF)
- Ministry of Education, Science and Technology [KRF-2008-313-D00303]
- Ministry of Knowledge Economy
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This study focused on optimization of reaction conditions for formation of sugars and levulinic acid from marine algal biomass Gelidium amansii using acid catalyst and by using statistical approach. By this approach, optimal conditions for production of sugars and levulinic acid were found as follows: glucose (reaction temperature of 139.4A degrees C, reaction time of 15.0 min, and catalyst concentration of 3.0%), galactose (108.2A degrees C, 45.0 min, and 3.0%), and levulinic acid (160.0A degrees C, 43.1 min, and 3.0%). While trying to optimize the conditions for the production of glucose and galactose, levulinic acid production was found to be minimum. Similarly, the production of glucose and galactose were found to be minimum while optimizing the conditions for the production of levulinic acid. In addition, optimized production of glucose required a higher reaction temperature and shorter reaction time than that of galactose. Levulinic acid was formed at a high reaction temperature, long reaction time, and high catalyst concentration. The combined results of this study may provide useful information to develop more economical and efficient systems for production of sugars and chemicals from marine biomass.
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