Growth and ethanol production through pretreatment and simultaneous saccharificaton and fermentation (SSF) from jerusalem artichoke by Kluyveromyces marxianus.
Jang Min PARK, Seonghun KIM, Jeong-woo SEO, Chul Ho KIM
언어
영어(ENG)
URL
https://www.earticle.net/Article/A174776
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원문정보
초록
영어
Jerusalem artichoke was exploiting alternative feedstock for fuel ethanol production. One of the low-requirement sugar crops, is an inexpensive and wildly available non-grain raw biomaterial containing cellulose and hemicelluloses in the stalk and a high content of inulin in the tuber. There are many advantages over grain crops: it can grow well in infertile land such as arid soil and salina, and resist many plant pests and diseases. And Kluyveromyces marxianus can inulinase and ethanol production at high temperature. In this study, Jerusalem artichoke stalk was pretreated by diluted acid treatment and then akali treatment. The optimum pretreatment conditions were at 121°C, 1 h retention time and 2% sulfuric acid solution and then 1M sodium hydroxide to dry biomass loading of 1:10 (w/w). The cellulose and hemicellulose from the tuber w ere released into the pretreatment. The sequentially acid/akali pretreatment biomass condisted of 51.6 % cellulose, 1.74 % hemicelluloses and 8.0 % lignin content afterward. Batch simultaneous saccharification and fermentation by Kluyveromyces maxianus, an inulinase activity yeast, was effectively performed and 29.0 g ethanol per 1 L of the fermented medium was yielded, the ethanol productivity was over 1.07 g ethanol/ g of dried Jerusalem artichoke and over 95% of total sugar was used by the yeast strain. This result showed that combining tuber to the stalk hydrolysate was a useful strategy of whole biomass utilization for effective fermentation of bioethanol production from Jerusalem artichoke.
키워드
EthanolJerusalem artichokeKluyveromyces marxianus
저자
Jang Min PARK [ Korea Research Institute of Bioscience and Biotechnology, Jeongeup 580-185, Korea. ]
Seonghun KIM [ Korea Research Institute of Bioscience and Biotechnology, Jeongeup 580-185, Korea. ]
Jeong-woo SEO [ Korea Research Institute of Bioscience and Biotechnology, Jeongeup 580-185, Korea. ]
Chul Ho KIM [ Korea Research Institute of Bioscience and Biotechnology, Jeongeup 580-185, Korea. ]
한국생물공학회 [The Korean Society for Biotechnology and Bioengineering]
설립연도
1984
분야
공학>생물공학
소개
이 법인은 생물 공학의 발전과 보급에 이바지하고, 회원 상호 간의 연구 협력과 친목을 도모함을 목적으로 한다
1. 생물공학 분야의 발전을 위한 연구 협력
2. 생물공학의 실용화를 촉진시키기 위한 산학 협동
3. 학술연구 발표회, 강연회, 연수회 등 학술활동의 개최
4. 국,영문 학술지,소식지,학술회의 Proceedings 및 학술도서의 발간
5. 생물공학 발전을 위한 정책 건의
6. 기타 국제 교류 등 본 학회의 목적 달성을 위한 제반 활동