The invention relates to a strain for co-production of
unsaturated fatty acid and
carotenoid and an application of the strain. The strain is classified and named as
Rhodosporidium toruloides Z11, and the preservation number of the strain is CCTCC NO: M 2021226. According to the invention, through
ion beam
mutagenesis, the obtained
mutant strain takes glucose as a unique
carbon source, and the
grease content and
carotenoid yield in
shake flask fermentation respectively reach 66% and 13.5 mg / g, which are respectively 2.12 times and 12.85 times of those of an original strain cultured under the same condition; the strain is high in stability, high in product yield and good in
repeatability, and is an excellent strain suitable for being used as
animal feed. The strain is rich in a large amount of
protein and a certain amount of
vitamin carotenoid, as an animal additive, the preparation process is simple, the production
raw material source is wide, large-scale production is facilitated, the problem that residual
mushroom dregs after
microbial oil extraction are not suitable for animals to digest and absorb is solved, meanwhile the production cost of the
microbial oil is reduced, and comprehensive utilization of resources is promoted.