Environ Technol. 2013 Nov-Dec;34(21-24):3137-43. doi: 10.1080/09593330.2013.808238.
One of the technologies available for coping with problems related to the rise in atmospheric concentrations of carbon dioxide is CO2 biofixation with microalgae or cyanobacteria. The selection of native strains that grow well at the specific site where the technology is to be used will increase the success possibilities of such a technology. Thus, with the aim of finding a suitable local variety for use in a CO2 biofixation system, three recently isolated freshwater strains, Scenedesmus sp., Chlorogonium sp. and Synechocystis sp. were studied. Chlorella sorokiniana was used as a control strain. All the strains were grown under the same culture conditions for seven days of batch culture, and various growth and CO2 biofixation parameters were determined. Synechocystis sp. showed the highest specific growth rate at 1.75 per day (l/d). Results for CO2 biofixation ranged between 0.650 and 0.953 g of carbon dioxide per litre per day (g CO2/l/d), but differences among native strains were noted, although they were not statistically significant. However, Synechocystis sp. was selected as the most suitable strain for CO2 biofixation, owing to its good capacity to use light in dense cultures, an essential requirement for sustainable commercial systems.
应对大气二氧化碳浓度升高相关问题的可用技术之一是利用微藻或蓝藻进行 CO2 固定。选择在要使用该技术的特定地点生长良好的本地菌株将增加此类技术成功的可能性。因此，为了寻找适合用于 CO2 固定系统的本地品种，研究了三种最近分离的淡水菌株：Scenedesmus sp.、Chlorogonium sp. 和 Synechocystis sp.。Chlorella sorokiniana 被用作对照菌株。所有菌株在相同的培养条件下进行为期七天的分批培养，并确定了各种生长和 CO2 固定参数。Synechocystis sp. 的特定生长率最高，为 1.75 天（l/d）。CO2 固定的结果在每天每升 0.650 到 0.953 克二氧化碳之间（g CO2/l/d），但注意到了本地菌株之间的差异，尽管这些差异没有统计学意义。然而，由于 Synechocystis sp. 在密集培养中能够很好地利用光，这是可持续商业系统的必要条件，因此被选为最适合 CO2 固定的菌株。
