The research of S.platensis cultivated using a 5.0L automatic fermenter

A 5.0L automatic fermenter, respectively was used to cultivate the S.platensis in the condition of photoautotrophy and mixotrophy, respectively.Firstly, three critical ingredients were measured timely in the process of the cultivating S.platensis under the photoautotrophy and mixotrophy, including dry weight ( DW ) , phycobiliproteins and chlorophyll-a.According to the experiment results, the DW that was in mixotrophy condition was more 104.75% than the photoautotrophy, the phycobiliproteins and the chlorophyll-a yet were lower, the value were 13.5% and 18.2% , respectively. The results showed that the DW was more 38.05% than batch cultivation. However, the phycobiliproteins and the chlorophyll - a yet were lower, the value were 3.76% and 1.75% , respectively. Therefore, the method which cultivated S.platensis in the condition of mixotrophy using the semi- continuous cultivation mode was a worthy method in photo bioreactor when S.platensis was cultivated in the large- scale.