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http://dx.doi.org/10.9713/kcer.2013.51.4.438

Production of Levulinic Acid from Gelidium amansii Using Two Step Acid Hydrolysis  

Kim, Jun Seok (Department of Chemical Engineering, Kyonggi University)
Publication Information
Korean Chemical Engineering Research / v.51, no.4, 2013 , pp. 438-442 More about this Journal
Abstract
The study of bioproduct production from inexpensive biomass such as marine biomass has recently attracted considerable attention. Because, marine biomass which compared to land biomass, it can be grown rapidly and is easily cultivated without the need for expensive equipment. In addition, the carbohydrate contents are similar or higher than land biomass such as woody biomass and can be easily converted to chemicals through proper chemical processes. In the production of various biochemicals from marine biomass, levulinic acid is a highly versatile chemical with numerous industrial uses and has the potential to become a commodity chemical. It can be used as a raw material for resins, plasticizers, textiles, animal feed, coatings and antifreeze. In this study, experiments were carried out to determine the optimum conditions of temperature, acid concentration and reaction time for production of levulinic acid from marine biomass, Gelidium amansii, using two-step treatment. In the first hydrolysis step, solid-state cellulose which was used to produce ethanol by fermentation and liquid-state galactose which used to produce bioproduct such as levulinic aicd were obtained through acid soaking. In the second hydrolysis step, the liquid-state galactose was converted into levulinic acid via a high-temperature reaction in a batch reactor. As a result, the overall production yield of Gelidium amansii to levulinic acid in the two-step acid hydrolysis was approximately 20.6% on the initial biomass basis.
Keywords
Red Algae; Acid Hydrolysis; Levulinic Acid;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
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