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Production of Sugars and Levulinic Acid from Marine Biomass Gelidium amansii |
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| Authors: | Gwi-Taek Jeong Don-Hee Park |
| Institution: | 1. Department of Biotechnology, Pukyong National University, Busan, 608-737, South Korea 2. School of Biological Sciences and Technology, Chonnam National University, Gwangju, 500-757, South Korea 3. Interdisciplinary Program of Graduate School for Bioenergy and Biomaterials, Chonnam National University, Gwangju, 500-757, South Korea 4. Research Institute for Catalysis, Chonnam National University, Gwangju, 500-757, South Korea 5. Functional Food Research Center, Chonnam National University, Gwangju, 500-757, South Korea 6. Biotechnology Research Institute, Chonnam National University, Gwangju, 500-757, South Korea 7. School of Chemical and Biological Engineering, Seoul National University, Seoul, 151-742, South Korea |
| Abstract: | 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 139.4°C, reaction time of 15.0 min, and catalyst concentration of 3.0%), galactose (108.2°C, 45.0 min, and 3.0%), and levulinic acid (160.0°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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