The invention discloses a method for efficiently producing
carotenoid. The method comprises the steps that juice with the high
carotenoid content is obtained by taking canned yellow peach leftovers as main raw materials through
microwave color fixing, frozen-breaking and biological enzymolysis, and after the ingredients are regulated, a
fermentation medium is obtained; fractional
inoculation and temperature-variable
fermentation are conducted on oceanic red
yeast inoculated with the high-yield
carotenoid, so that the oceanic red
yeast is maximumly proliferated; after
fermentation liquid is subjected to ultrahigh pressure homogenizing, vacuum centrifuging and demulsifcation separating,
emulsion is obtained, and after the
emulsion is extracted, separated and purified, the finished carotenoid is obtained, wherein the
cell biomass of the fermentation liquid is 38-52 g / L, and the yield of the carotenoid is 47-61 mg / L. The preparation method is simple, the cycle is short, the efficiency is high, energy is saved, environmental friendliness is achieved, a low-temperature bio-
processing technique is adopted in the whole process, the production cost is reduced, hidden environmental
pollution danger is eliminated, a firm foundation is laid for
sustainable development of the field of yellow peach
deep processing technologies, and the positive economic and social development significance is achieved.