LIUTing-ting,CHENG Li-rong,XIEEn,et al.Effects of Different Kinds of Phosphorus Source on Growth and Lipid Production of Chlorella pyrenoidosa[J].China Water & Wastewater,2023,39(7):81-88.
Effects of Different Kinds of Phosphorus Source on Growth and Lipid Production of Chlorella pyrenoidosa
China Water & Wastewater[ISSN:1000-4062/CN:12-1073/TU]
volume:
第39卷
Number:
第7期
Page:
81-88
Column:
Date of publication:
2023-04-01
- Keywords:
- Chlorella pyrenoidesa; phosphorous source; lipid production; co-culture system; neutral lipid
- Abstract:
- Lipid production of microalgae has been widely concerned because of its clean and non-toxic characteristics. However, high cultivation cost and low lipid production efficiency have restricted its engineering application. To solve this problem, the effects of four kinds of phosphorus source including typical inorganic phosphorus, common organic phosphorus, nucleoside monophosphate and cyclic nucleoside monophosphate on the growth and lipid production of Chlorella pyrenoidesa in mono-algae culture and bacteria-algae co-culture system were investigated, and the number of algal cells growing, neutral lipid yield and changes of phosphorus and alkaline phosphatase contents in different culture systems were detected by ultraviolet analysis and Nile red staining. There was no significant difference in phosphorus utilization between the two systems. The number of algal cells (4.94×108 cells/10 μL) in the mono-algal culture system was higher than that in the co-culture system (3.38×108 cells/10 μL), but the lipid production in the co-culture system was higher. The growth and lipid production of the bacteria-algae co-culture system with phosphate, trimetaphosphate, triethyl phosphate and O-phospho-L-tyrosine as phosphorus sources was better.
Last Update:
2023-04-01