Hongseok LEE, Ngoc Tu PHAM, IK-Keun YOO, Seung Hwan LEE
언어
영어(ENG)
URL
https://www.earticle.net/Article/A114593
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원문정보
초록
영어
Lactic acid production was investigated using Lactobacillus paracasei KCTC 13169, L-lactic acid producer, for the feedstock of biopolymer. In batch cultures, glucose and yeast extract (YE) concentrations were varied in the range of 50-250 g/L and 5-15 g/L, respectively, in order to determine maximum concentration and productivity of lactic acid as well as the optical purity of lactic acid during fermentation. Higher YE concentrations gave better cell growth affecting on the growthassociated lactic acid production so that the productivity of lactic acid increased up to more than 4 g/L.hr under 15 g/L of yeast extract. The maximum lactic acid concentration of more than 180 g/L was obtained when 250 g/L of glucose was fed while a high concentration of glucose inhibited cell growth rate. Several kinds of fed-batch strategy including constant feeding, intermittent feeding, and pH-stat feeding were applied in order to increase the productivity and lactic acid concentration.
키워드
Lactic acidYeast extractFed-batch
저자
Hongseok LEE [ School of Chem. Eng. & Bioeng., University of Ulsan. ]
Ngoc Tu PHAM [ School of Chem. Eng. & Bioeng., University of Ulsan. ]
IK-Keun YOO [ School of Chem. Eng. & Bioeng., University of Ulsan. ]
Seung Hwan LEE [ Chemical Biotech. Research Center, KRICT. ]
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