METHOD FOR PREPARING BIOALCOHOL INGREDIENT HAVING LOW CONCENTRATION OF TOXIC MATERIALS FROM RED ALGAE AND METHOD FOR PRODUCING BIOALCOHOL THROUGH THE SAME

摘要

The present invention relates to a method for preparing a bioalcohol ingredient having a low concentration of toxic material from red algae. The method for preparing the bioalcohol ingredient comprises a step of extracting gel by immersing the red algae in one or more extraction solvent selected from thiourea or anthraquinone at a specific temperature for a specific time. Also, the method selectively comprises: a step of performing pyrolysis of extracted gel; or a step of using an enzyme to treat a low molecular material generated through pyrolysis of the extracted gel. In addition, the bioalcohol ingredient prepared through the method can produce bioalcohol, especially bioethanol, by being fermented with alcohol fermentation microbe. The bioalcohol ingredient can maximize productivity of the bioalcohol due to the very low concentration of furfural or hydroxy methyl furfural which is toxic material of the alcohol fermentation microbe. Also, the extracted gel is over 100? during the extraction process. Thus, the extracted gel can have low molecular weight by minimizing energy consumption at additional pyrolysis step.