Lactic acid fermentations were conducted using water hyacinth. It is known that the pretreatment and enzyme hydrolysis process optimize the potential of water hyacinth.1,2 Lactic acid produced by using lactic acid bacteria (Lactobacillus crispatus, L. fermentum, L. casei, L. plantarum, L. helveticus, L. paracasei, L.delbrueckii, and L. reuteri). All cells were grown at 370 C and initial pH 5.5.3 Lactic acid production was measured by HPLC. All lactobacillus strains could produce lactic acid from pretreated Water Hyacinth. The highest lactic acid was achieved when lactic acid fermentation was carried out by L.delbrueckii. The lactic acid concentration was 11.85 g/l by L.delbrueckii. It converted glucose in the medium to lactic acid, perfectly. The other strains also could produce the high level of lactic acid in this medium. These are comparable to the lactic acid produced in complex medium such as MRS medium. This study informed that water hyacinth medium could be alternative medium which can replace the complex and expensive medium for growing Lactobacillus strains in production of lactic acid.
키워드
water hyacinthlactic acidlactobacillus
저자
Randy JULLIHAR [ Department of Biological Engineering, Inha University, Incheon 402-751, Korea. ]
Hyun Shik YUN [ Department of Biological Engineering, Inha University, Incheon 402-751, 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