普通小球藻在自养、异养和混合营养生长条件下的生物量和脂质生产率。
Biomass and lipid productivities of Chlorella vulgaris under autotrophic, heterotrophic and mixotrophic growth conditions.
作者信息
Liang Yanna, Sarkany Nicolas, Cui Yi
机构信息
Department of Civil and Environmental Engineering, Southern Illinois University, 1230 Lincoln Dr., Carbondale, IL 62901, USA.
出版信息
Biotechnol Lett. 2009 Jul;31(7):1043-9. doi: 10.1007/s10529-009-9975-7. Epub 2009 Mar 27.
Biomass and lipid productivities of Chlorella vulgaris under different growth conditions were investigated. While autotrophic growth did provide higher cellular lipid content (38%), the lipid productivity was much lower compared with those from heterotrophic growth with acetate, glucose, or glycerol. Optimal cell growth (2 g l(-1)) and lipid productivity (54 mg l(-1) day(-1)) were attained using glucose at 1% (w/v) whereas higher concentrations were inhibitory. Growth of C. vulgaris on glycerol had a similar dose effects as those from glucose. Overall, C. vulgaris is mixotrophic.
研究了不同生长条件下普通小球藻的生物量和脂质生产率。虽然自养生长确实能提供更高的细胞脂质含量（38%），但与以乙酸盐、葡萄糖或甘油进行异养生长相比，脂质生产率要低得多。使用1%（w/v）的葡萄糖可实现最佳细胞生长（2 g l(-1)）和脂质生产率（54 mg l(-1) 天(-1)），而更高浓度则具有抑制作用。普通小球藻在甘油上的生长具有与葡萄糖类似的剂量效应。总体而言，普通小球藻是兼养型的。
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