| 孙少强,王辉,宋庆洋,米武娟,毕永红.发酵处理的酵母代谢物对小球藻的促生长效应[J].农业环境科学学报,2026,45(9):2424-2434. |
| 发酵处理的酵母代谢物对小球藻的促生长效应 |
| Enhanced growth of Chlorella by fermented yeast metabolites |
| 投稿时间：2025-10-13 |
| DOI：10.11654/jaes.2025-0930 |
| 中文关键词: 小球藻 酵母代谢物 发酵 生长 代谢组学 |
| 英文关键词: Chlorella yeast metabolites fermentation growth metabolomics |
| 基金项目:湖北省中国科学院科技合作专项项目《酵母发酵废液的高值化利用关键技术开发与产业化》；国家重点研发计划项目（2020YFA0907400） |
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| 中文摘要: |
| 酵母代谢物是一种工业副产物，为充分利用其潜在的应用价值，本研究以小球藻为对象，探究发酵处理的酵母代谢物对索罗金小球藻生长的影响。结果表明：在BG11培养基与养殖池塘水按体积比1∶1混合的培养基中，与未添加酵母代谢物的对照组相比，发酵处理的酵母代谢物处理组的小球藻生物量提高了50.2%，发酵3 d，酵母代谢物浓度为22.5 mg·L-1的处理组的促生长效果最佳，其生物量、Chl a浓度和Chl b浓度分别提升了12.2%、16.7%和25.4%。代谢组学分析表明发酵处理的酵母代谢物的主要成分为有机酸及其衍生物和苯环类化合物，这些物质改变了小球藻细胞的代谢状态，促进小球藻Chl a和Chl b的合成以及光合放氧速率的提高，最终促进生物量的快速积累。研究表明，发酵处理能有效活化酵母代谢物中的促生长组分，该结果为将其转化为藻类培养的高效添加剂提供了直接证据。 |
| 英文摘要: |
| Yeast metabolites are industrial by-products. To fully utilize their potential application value, this study focused on Chlorella and investigated the effects of fermented yeast metabolites on the growth of Chlorella sorokiniana. The results showed that in a culture medium prepared by mixing BG11 medium and aquaculture pond water at a 1∶1 volume ratio, compared with the control group without yeast metabolites added, the biomass of Chlorella in the group treated with fermented yeast metabolites was increased by 50.2%. After three days of fermentation, the treatment group with a fermented yeast metabolite concentration of 22.5 mg·L-1 showed the best growth-promoting effect, with biomass, chlorophyll a and chlorophyll b concentration increased by 12.2%, 16.7%, and 25.4%, respectively. Metabolomic analysis revealed that the main components of the fermented yeast metabolites were organic acids and their derivatives, as well as benzenoid compounds. These substances altered the metabolic state of the Chlorella cells, promoted the synthesis of chlorophyll a and chlorophyll b and enhanced the photosynthetic oxygen evolution rate, ultimately leading to the rapid accumulation of biomass. This study concludes that fermentation effectively activates the growth-promoting components in yeast metabolites, providing direct evidence for their conversion into efficient additives for algal cultivation. |
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