- 색소생성 균주 Kocuria sp. K70의 특징과 색소생성 최적 조건 및 물리적 안정성
- ㆍ 저자명
- 김영숙,박진숙,Kim. Young-Sook,Park. Jin-Sook
- ㆍ 간행물명
- KSBB Journal
- ㆍ 권/호정보
- 2010년|25권 6호|pp.513-519 (7 pages)
- ㆍ 발행정보
- 한국생물공학회
- ㆍ 파일정보
- 정기간행물| PDF텍스트
- ㆍ 주제분야
- 기타
Marine bacterium producing pigment was isolated from the solar saltern of Mijo-myeon, Namhae, Korea. Based on phenotypic characteristics and 16S rRNA sequence analysis, the strain was identified as Kocuria sp., which produced a yellow pigment. The pigment showed UV absorption maximum at 469nm. The bacterial strain grew well on Marine broth 2216 culture medium. Productivity of the pigment reached the maximum value after 44 hours at $30^{circ}C$, 2% NaCl and pH 6.0. The pigment was produced best when supplied by 1% lactose as a carbon source and 1% beef extract as a nitrogen source. The result of the color stability study showed that pigment extracted from the strain by ethanol was stable at $-20-25^{circ}C$ and also showed higher stability over 70% for 14 days in light conditions at $25^{circ}C$. The pigment extract was also stable for all metal ions tested, except for $FeCl_2$.