지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
초록· 키워드
오류제보하기
Nitrogen availability and cell density each affects growth and cellular astaxanthin content of Haematococcus pluvialis, but possible combined effects of these two factors on the content and productivity of astaxanthin, especially under outdoor culture conditions, is less understood. In this study, the effects of the initial biomass densities IBDs of 0.1, 0.5, 0.8, 1.5, 2.7, 3.5, and 5.0 g $L^{-1}$ DW and initial nitrogen concentrations of 0, 4.4, 8.8, and 17.6 mM nitrate on growth and cellular astaxanthin content of H. pluvialis Flotow K-0084 were investigated in outdoor glass column photobioreactors in a batch culture mode. A low IBD of 0.1 g $L^{-1}$ DW led to photo-bleaching of the culture within 1-2 days. When the IBD was 0.5 g $L^{-1}$ and above, the rate at which the increase in biomass density and the astaxanthin content on a per cell basis was higher at lower IBD. When the IBD was optimal (i.e., 0.8 g $L^{-1}$), the maximum astaxanthin content of 3.8% of DW was obtained in the absence of nitrogen, whereas the maximum astaxanthin productivity of 16.0 mg $L^{-1}\;d^{-1}$ was obtained in the same IBD culture containing 4.4 mM nitrogen. The strategies for achieving maximum Haematococcus biomass productivity and for maximum cellular astaxanthin content are discussed.
목차
등록된 정보가 없습니다.
참고문헌 (25)
참고문헌 신청
Aflalo, C. / 2007 / On the relative efficiency of two-vs. one-stage production of astaxanthin by the green alga Haematococcus pluvialis / Biotechnol. Bioeng 98:300~305
Borowitzka, M. A. / 1991 / Culture of the astaxanthin-producing green alga Haematococcus pluvialis. 1. Effects of nutrients on growth and cell type / J. Appl. Phycol 3:295~304
Boussiba, S. / 1991 / Astaxanthin accumulation in the green alga Haematococcus pluvialis / Plant Cell Physiol 32:1077~1082
Fábregas, J. / 2001 / Two-stage cultures for the production of astaxanthin from Haematococcus pluvialis / J. Biotechnol 89:65~71
García-Malea, M. C. / 2006 / Continuous production of green cells of Haematococcus pluvialis: modeling of the irradiance effect. Enzyme Microb / Technol 38:981~989
Borowitzka, M. A. / 1991 / Culture of the astaxanthin-producing green alga Haematococcus pluvialis. 1. Effects of nutrients on growth and cell type / J. Appl. Phycol 3:295~304
Boussiba, S. / 1991 / Astaxanthin accumulation in the green alga Haematococcus pluvialis / Plant Cell Physiol 32:1077~1082
Fábregas, J. / 2001 / Two-stage cultures for the production of astaxanthin from Haematococcus pluvialis / J. Biotechnol 89:65~71
García-Malea, M. C. / 2006 / Continuous production of green cells of Haematococcus pluvialis: modeling of the irradiance effect. Enzyme Microb / Technol 38:981~989
이 논문의 저자 정보
최근 본 자료
댓글(0)
0