지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
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연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
초록· 키워드
오류제보하기
Nitrogen is one of the most critical nutrients affecting cell growth and biochemical composition of microalgae, ultimately determining the lipid or carbohydrate productivity for biofuels. In order to investigate the effect of nitrogen sources on the cell growth and biochemical composition of the marine microalga Tetraselmis sp., nine different N sources, including NaNO<sub>3</sub>, KNO<sub>3</sub>, NH<sub>4</sub>NO<sub>3</sub>, NH<sub>4</sub>HCO<sub>3</sub>, NH<sub>4</sub>Cl, CH<sub>3</sub>COONH<sub>4</sub>, urea, glycine, and yeast extract were compared at the given concentration of 8.82 mM. Higher biomass concentration was achieved under organic nitrogen sources, such as yeast extract (2.23 g L<sup>−1</sup>) and glycine (1.62 g L<sup>−1</sup>), compared to nitrate- (1.45 g L<sup>−1</sup>) or ammonium-N (0.98 g L<sup>−1</sup>). All ammonium sources showed an inhibition of cell growth, but accumulated higher lipids, showing a maximum content of 28.3% in ammonium bicarbonate. When Tetraselmis sp. was cultivated using yeast extract, the highest lipid productivity of 36.0 mg L<sup>−1</sup> d<sup>−1</sup> was achieved, followed by glycine 21.5 mg L<sup>−1</sup> d<sup>−1</sup> and nitrate 19.9 mg L<sup>−1</sup> d<sup>−1</sup>. Ammonium bicarbonate resulted in the lowest lipid productivity of 14.4 mg L<sup>−1</sup> d<sup>−1</sup>. The major fatty acids in Tetraselmis sp. were palmitic, oleic, linoleic and linolenic acids, regardless of the nutritional compositions, indicating the suitability of this species for biodiesel production.
목차
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참고문헌 (46)
참고문헌 신청
American Public Health Association. / 1995 / Standard methods for the examination of water and wastewater / American Public Health Association :43
Bartley, M. L. / 2016 / Optimization of environmental parameters for Nannochloropsis salina growth and lipid content using the response surface method and invading organisms / J. Appl. Phycol. 28:15~24
Becker, E. W. / 1994 / Microalgae biotechnology and microbiology / Cambridge University Press :18
Bligh, E. G. / 1959 / A rapid method for total lipid extraction and purification / Can. J. Biochem. Physiol 37:911~917
Cai, T. / 2013 / Nutrient recovery from wastewater streams by microalgae : status and prospects / Renew. Sustain. Energy Rev. 19:360~369
Bartley, M. L. / 2016 / Optimization of environmental parameters for Nannochloropsis salina growth and lipid content using the response surface method and invading organisms / J. Appl. Phycol. 28:15~24
Becker, E. W. / 1994 / Microalgae biotechnology and microbiology / Cambridge University Press :18
Bligh, E. G. / 1959 / A rapid method for total lipid extraction and purification / Can. J. Biochem. Physiol 37:911~917
Cai, T. / 2013 / Nutrient recovery from wastewater streams by microalgae : status and prospects / Renew. Sustain. Energy Rev. 19:360~369
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