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고압액화공정을 이용한 구멍갈파래의 발효용 알코올 당화수율 증진
한재건(Jae Gun Han),오성호(Sung Ho Oh),최운용(Woon Yong Choi),권정웅(Kwon Jung Woong),서현범(Hyeon Beom Seo),정경환(Kyung Hwan Jeong),강도형(Do Hyung Kang),이현용(Hyeon Yong Lee) 한국생물공학회 2010 KSBB Journal Vol.25 No.4
Green alga, Ulva pertusa kjelmann has been known to be one of the largest pollutants in Korea. Therefore, the efficient pretreatment processes have been required to improve the yields of fermentable sugar. The optimal pretreatment conditions were determined to be 195℃ for 15 min. The sugar yield of glucose and xylose were estimated as 20.5%, and 5.0% respectively, based on theoretical yields. However solid residues were estimated enzymatic digestibility of 90-95% with cellulase loading of 15 FPU/g glucan. This process was proved to generate the low concentration of Hydroxy-Methyl-Furfural (51 ppm), which resulted in ethanol production with 95% of the maximum conversion yield from glucose in the culture of Saccharomyces cerevisiae (ATCC, 24858). This study showed that Ulva pertusa kjellmann can be used as a bioetahnol resource using the high temperature liquefaction process.