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在Zarrouk溶液中添加不同的有机碳氮源,研究它们对钝顶螺旋藻生长及叶绿素a含量的影响。结果表明:糖类中,浓度为1.5 g.L-1葡萄糖对钝顶螺旋藻生长影响明显,平均生长速率增加了19.1%,平均世代时间减少了16.0%,其次为麦芽糖,平均生长速率增加了5.2%,平均世代时间减少了5.6%;有机酸钠盐对螺旋藻的生长影响不太明显,只有苹果酸盐对其生长有一定的促进作用。有机氮源中,只有0.2 g.L-1尿素有微弱的促长作用。添加的有机碳氮源中,苹果酸钠对螺旋藻叶绿素a含量的影响最为明显,与对照相比,螺旋藻单位藻体的叶绿素a含量提高了73.4%,葡萄糖则使单位藻体的叶绿素a含量有所下降。
Different organic carbon and nitrogen sources were added to Zarrouk solution to study their effects on the growth and chlorophyll a content of Spirulina platensis. The results showed that glucose concentration of 1.5 gL-1 glucose had obvious effect on the growth of Spirulina platensis, the average growth rate increased by 19.1%, the average generation time decreased by 16.0%, followed by maltose, the average growth rate increased by 5.2% , The average generation time decreased by 5.6%; organic acid sodium has little effect on the growth of Spirulina, only malate can promote its growth. Organic nitrogen sources, only 0.2 g.L-1 urea has a weak role in promoting growth. Among the added organic carbon and nitrogen sources, sodium malate had the most obvious effect on the content of chlorophyll a in spirulina, compared with the control, the content of chlorophyll a in the spirulina unit increased by 73.4% The content has decreased.