Schizochytrium strain and use thereof, microbial oil containing dha at sn-2 position and preparation and use thereof
AssigneeHanpeng QU
InventorsYun LIANG, Sheng CAO, Shenjian WANG
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Abstract
This disclosure relates to microbial technology, and more particularly to a Schizochytrium strain and a use thereof, a microbial oil containing DHA at an Sn-2 position, and a preparation and uses thereof. Sn-2 fatty acids of a triglyceride in the microbial oil contain 23% or more by weight of DHA. The microbial oil is prepared by fermentation using a Schizochytrium strain, where the Schizochytrium strain is Schizochytrium sp. with an accession number of GDMCC No. 60733.
Claims9
A microbial oil, comprising:
- a triglyceride;
- wherein Sn-2 fatty acids of the triglyceride comprises 23% or more by weight of DHA.
A method for producing a microbial oil, comprising:
- inoculating a Schizochytrium strain into a fermentation medium for fermentation to produce the microbial oil;
- wherein the Schizochytrium strain is Schizochytrium sp. GDMCC No. 60733;
- the fermentation is carried out at pH 6-7.5 and 27-31° C. for 4-8 days under a ventilation rate of 0.45-1.1 vvm;
- the fermentation medium comprises 5-70 g/L of a carbon source, 15-45 g/L of a nitrogen source, 5-40 g/L of an inorganic salt, 0.01-0.04 g/L of a trace element and 0.01-0.04 g/L of a vitamin;
- the nitrogen source comprises glutamate;
- and a concentration of glutamate in the fermentation medium is 5-15 g/L.
A Schizochytrium strain, wherein the Schizochytrium strain has an accession number of GDMCC No. 60733.
Dependencies are inferred from the claim text.