Chinese researchers achieve ultra-high density microalgae hetero-culture

Xinhua News Agency, Wuhan, October 24 (Reporter Tan Yuanbin) China
Aquatic Biology Research Institute, the State Investment and Development Corporation Microalgae Biotechnology Center and Jinan University researchers composed of a joint team, recently achieved ultra-high density microalgae culture, breaking through the key bottleneck of large-scale industrialization of microalgae applications.
microalgae is a single-celled organism that can be used as raw material for the production of energy, food and feed, and has broad application prospects in the industrial field. Hetero-cultivation is a new mode of production of microalgae biomass, which has the advantages of high efficiency, high controllability and easy industrial production compared with traditional light self-cultivation culture. Limited by the technical level, the current biogas can reach biomass concentration under the condition of hetero-culture is still very low, restricting the industrial application of microalgae.
The researchers of the above-mentioned joint team studied an oil-rich algae that can be cultured by hetero-culture, and achieved the ultra-high density culture of the oil-rich algae through process optimization, especially the breakthrough of the key technology of precise glucose concentration control. The results showed that under the enlarged conditions of laboratory and pilot fermentation tanks, the maximum cell dry weight of algae reached 286 grams per liter and 283.5 grams, respectively.
" shows that microalgae ultra-high density hetero-culture culture technology has great commercial potential.
Aquatic Institute
it is understood that in mid-October, the results of the study have been published online in the field of bioengineering in the international classic academic journal Biotechnology and Bioengineering, Jinhu Assistant Researcher and Dr. Zhang Hu as the first author of the paper.
Jinhu revealed that the application of related technology, aquatic research team has achieved high-yield protein, β-1,3 glucosaccharides, astratin, polyunsaturated fatty acids and other economic microalgae ultra-high density heteroculture culture, is currently carrying out these functional microalgae in feed, functional food and other fields of product development.