2025年 03期

摘要(Abstract)：

为了探究不同营养方式下淡水微藻麦可藻Mychonastes afer的生长及胞内活性物质积累差异，以水产养殖中的经济藻种小球藻Chlorella sorokiniana作为对照，分别测定高浓度二氧化碳条件下2种微藻在自养、兼养条件下的生长状况、有机碳源、各色素含量、抗氧化能力及脂肪酸组成。结果表明：在兼养条件下，麦可藻与小球藻均能实现较快生长，麦可藻具有更高的色素含量与抗氧化能力，其叶绿素a、叶绿素b及类胡萝卜素的含量较自养条件下的分别提高504%、 149%、 88%,而小球藻的色素含量及抗氧化能力均较自养条件下的下降；麦可藻的饱和脂肪酸和单不饱脂肪酸占比提高，神经酸C24∶1含量提高145%; 2种微藻对光能和有机碳源的协同代谢机制存在显著差异，在兼养条件下麦可藻具备更高的生产速率，活性物质含量更高。

关键词(KeyWords)：兼养培养;麦可藻;小球藻;胞内活性物质

基金项目(Foundation):青海省重点研发与转化计划项目(2022-NK-111)

作者(Author): 方霞,夏皖月,孙璐,PHUNG Nghi Van,李晨,董炳喆,范勇,李强,李福利

DOI: 10.13349/j.cnki.jdxbn.20240611.001

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