Anaerobic Bioconversion Potential of Blue Crab Processing Waste and Wastewater(II) -Enzymatic Pretreatment for Improving the Anaerobic Bioconversion Potential of Blue Crab Processing Wastes-

꽃게(Blue Crab) 가공 식품 제조 공정상 발생된 폐수 및 폐기물의 혐기성 생분해 가능성(II) -공정상 발생된 폐기물의 혐기성 생분해 가능성 증대를 위한 효소적 전처리-

In use of anaerobic bioconversion shellfish wastes present special problems, since the chitinous structures in the shell faction degrade very slowly in an anaerobic environment. Enzymatic pretreatment method was evaluated for improving the anaerobic bioconversion potential of blue crab processing wastes. An enzymatic pretreatment using chitinase enhanced the ultimate methane yield and biodergradation rate constant for total crab solid wastes by 15% and 19% respectively, above those of the untreated wastes. When the enzymatic pretreatment applied to the shell fraction alone, it resulted in increase of 34% in the ultimate methane yield and 38% in the reaction rate. The results indicate that anaerobic bioconversion of these wastes is technically feasible and enzymatic pretreatment will improve the efficiency of the process.