207 results about "Rhodotorula" patented technology

The invention discloses a Rhodotorula mucilaginosa strain and application in fermentation production of carotenoid and oils. The main point of the technical scheme involved in the invention lies in that: the Rhodotorula mucilaginosa strain is preserved in China General Microbiological Culture Collection Center with a preservation number of CGMCC No.8926. The Rhodotorula mucilaginosa provided by the invention can be used for fermentation production of carotenoid and oils. According to the invention, Rhodotorula mucilaginosa is utilized to produce carotenoid and oils at the same time, multi-round ARTP (atmospheric and room temperature plasma) mutagenesis is carried out on the production strain so as to obtain a high yield mutant strain, thus providing good application prospects and economic benefits for industrial production of carotenoid and oils.

The invention relates to ocean rhodotorula YS-185 bred with high yield of astaxanthin, which is obtained from ocean, wherein the rhodotorula is preserved in CCTCC of Wuhan, China with the preservation number of CCTCC NO: M207077; the invention also relates to a method for producing astaxanthin by fermenting and cultivating the ocean rhodotorula YS-185. The astaxanthin produced by the ocean rhodotorula YS-185 is natural astaxanthin and can be widely applied to high-quality cosmetics, food and feed additives.

Process for producing the enzyme D-amino acid oxydase of Rhodotorula gracilis in host cells. The process for the expression of the enzyme comprises isolating the complementary DNA corresponding to the messager RNA of the gene which codes for the D-amino acid oxydase of any strain of Rhodotorula gracillis producing said enzyme; fusing the fragment of DNA which codes for D-amino acid oxydase of Rhodotorula gracillis with a DNA sequence which contains a site of union to the ribosome and a high efficiency promoter sequence for the express of genes in host cells; inserting the DNA fragment into a plasmid appropriate for the host cell; cultivating the host cells transformed with said plasmid; and collecting the enzyme.

The invention provides a stress-resistant feed for aquatic products, and a feed additive. The stress-resistant feed additive for aquatic products is mainly prepared from the following components in percentage by weight: 3-20% of a butyric acid derivative, 1-10% of marine rhodotorula, 0.2-5% of taurine, 5-20cfu/g of probiotics, 1-20% of a traditional Chinese medicine extract, 1-10% of complex vitamins and the balance of other auxiliary materials. The additive disclosed by the invention can notably improve the stress response resistance of aquatic animals, besides, the functions of the additive are diversified, the tolerance of the aquatic animals to various adverse environments of hypoxia, transportation and hyposaline, the adverse environment of being away from water and the like can be enhanced, and the growth of the aquatic animals can also be promoted.

The invention discloses rhodotorula mucilaginosa and a fermentation culture substance and application thereof. The rhodotorula mucilaginosa is rhodotorula mucilaginosa TZR<2014>, and the preservation number is CCTCC NO:M2015574. Liquid state fermentation is conducted on the rhodotorula mucilaginosa by means of the fermentation culture medium, the biomass of fermentation liquor is 18 g/L, and the yield of carotenoid is 36 mg/L. The rhodotorula mucilaginosa has the effects of resisting staphylococcus aureus, gastric acid and cholate, and a solid fermentation substance of the rhodotorula mucilaginosa further contains pyruvic acid which has the functions of accelerating fat consumption, increasing the muscle yield, phagocytosing free radicals in bodies and inhibiting generation of the free radicals. Therefore, the rhodotorula mucilaginosa can be used for feed additives of livestock, poultry and aquatic animals and has a wide application prospect.

The invention discloses a solid ocean red yeast preparation which is mainly prepared from a composite protective agent and ocean red yeast bacterial sludge according to a mass ratio of (1.5-2.2):1, wherein the cell density of ocean red yeast in the solid ocean red yeast preparation is 200-400 billion/gram, the cell activity is 70-80%, and the protective agent comprises skim milk powder and cane sugar. The invention further discloses a preparation method of the solid ocean red yeast preparation, The preparation method comprises the following steps: firstly, performing high-density cultivation on the ocean red yeast in a cultivation mode of continuous liquid flow layer ventilation, and further drying by using a vacuum freezing drying method. According to the solid ocean red yeast preparation, the survival rate of the ocean red yeast can be increased to be 70-80%, the cell density in the preparation can be 200-400 billion/gram, and the preparation can be also used in aquatic product feeds as an additive as a product of the preparation is in a solid manner, long in expiration date and convenient to transport.

The invention relates to a household sludge reduction compound microbial preparation as well as preparation and application methods thereof, belonging to the field of microbial application. Based on the total bacteria count, the household sludge reduction compound microbial preparation comprises 10-20% of Celloulonmonassp., 10-20% of Serratiasp., 30-60% of Bacilluspumilus and 20-30% of Rhodotorulamucilaginosa, wherein the Celloulonmonassp. is selected from at least one of CCTCCAB209393 and YMCCKMS3990, the Serratiasp. is selected from at least one of ACCC02490 and CICC20143, the Bacilluspumilus is ACCC10113 and the Rhodotorulamucilaginosa is CICC31192. The microbial preparation and the preparation method provided by the invention are simple and feasible, economic and reasonable and free from secondary pollution to the environment.

Disclosed are a cosmetic composition for improving anti-oxidation, anti-inflammation and atopic skin by using fermented liquid of black tea as an effective ingredient and a method of preparing the same. The cosmetic composition includes the fermented black tea liquid obtained by primarily fermenting black tea with saccharomyces, secondarily fermenting the black tea with gluconacetobacter and tertiarily fermenting the black tea with bacillus.

A starch-adsorption fluidized-bed process for drying the solid marine rhodotorula features use of continuous stream plus deep aeration culture and starch-adsorption fluidized-bed. The resultant has high concentration of rhodotorula cells (5-10 billions/g), high output and high living cell percentage (30%). It can be used to raise prawn and marine crab with high survial rate, health level and raising efficiency.

The invention discloses a preparation method of an olive sauce rich in carotenoids. The method comprises the following steps: adding a proper amount of drinking water into olive fruit residue for moistening after squeezing oil, introducing steam for steaming, inoculating aspergillus niger bran koji, carrying out heat-preservation fermentation at the temperature of 30-33 DEG C, adjusting water content, carrying out heat-preservation fermentation at the temperature of 45-55 DEG C, then inoculating a rhodotorula bacteria seed solution, carrying out heat-preservation fermentation at the temperature of 30-33 DEG C, then carrying out heat-preservation fermentation for 48-60 hours at the temperature of 26-29 DEG C, then ending fermentation, mixing thick broad-bean sauce, olive oil, table salt, white granulated sugar and red square fermented bean curd juice, and decocting to prepare the olive sauce. The olive fruit residue after squeezing oil is subjected to enzymolysis by aspergillus niger, so that the content of tannin is reduced; starch and protein are degraded into micromolecule materials; the fragrance of the olive sauce is improved; the digestion and absorption rate of nutrition components is increased; through post fermentation of red yeast after pre-fermentation, the carotenoids are generated; the nutrition materials are increased; the thick broad-bean sauce, the olive oil and the red square fermented bean curd juice are used for decocting, so that the olive sauce is strong in sauce flavor and rich in taste.

The invention relates to a method for producing coenzyme Q10 by using rhodotorula gracilis, which belongs to the field of microorganism. The method comprises the following steps: culturing bacteria on a flat plate; preserving the bacteria at minus 80 DEG C after being washed by sterile water; and putting the activated bacteria into a fermentation culture medium to culture. The invention provides new high-potential candidate bacteria for fermenting and producing coenzyme Q10.

The invention discloses a butachlor degradation strain and application thereof. The butachlor degradation strain is rhodotorula mucilaginose Y-LCY-1 and is preserved in China General Microbiological Culture Collection Center on September 14, 2009 with a preservation number of GMCCNo.3270. The strain can maximally tolerate 1,000 mg.L<-1> butachlor; and after being cultured in an inorganic salt basal medium containing 100 mg.L<-1> butachlor for 7 days at 25 DEG C with the inoculum concentration of 5 percent and pH of 6.5, the strain can degrade 97.6 percent of the butachlor and has good degradation effect on the butachlor of 50 to 500 mg.L<-1>. The strain provided by the invention can be applied to the biological purification of water bodies and soil polluted by the butachlor.

A spray process for drying solid marine rhodotorule features use of continuous stream plus deep aeration culture and spray drying. Its resultant has high concentration of rhodotorula cells (10-100 billions/g) and high output. It can be used to raise prawn and marin crab for higher surviral rate, health level and raising efficiency.

The invention relates to a wall breaking method for red yeast. The wall breaking method comprises the following steps: preparing hydrochloric acid with different concentration gradients, performing treatment on the red yeast by an acid-heating method, extracting pigments by an organic solvent and comparing a wall breaking effect. The concentration of the hydrochloric acid used by the wall breaking method for the red yeast, provided by the invention, is low, the wall breaking time is short, the efficiency is high, and the extraction rate of carotenoids is improved by about 40% in comparison with the treatment with the acid in other concentrations; and furthermore, the energy consumption is low, the process is simple, the requirements on equipment are low, the pollution of the carotenoids is reduced by treatment with the hydrochloric acid in low concentration, and the method has very strong practical value and development prospect. The wall breaking method is conductive to improving the yield and the quality of the carotenoids produced by fermentation of the red yeast and reducing the production cost.

The invention discloses a special compound feed for breeding parent shrimps of Litopenaeus vannamei. The special compound feed contains the following components in percentage by weight: 20%-45% of whole squid meal, 5%-20% of Peru fish meal, 5%-15% of copepod dry powder, 2%-5% of enzymolysis fish soluble meal, 2%-8% of spirulina powder, 3%-10% of fly maggot meal, 5%-20% of oyster powder, 1%-4% of enzymolysis beer yeast powder, 1%-4% of sea rhodotorula, 5%-20% of alpha-starch, 1%-3% of soybean lecithin, 1%-5% of squid liver oil, 0.5%-2% of calcium dihydrogen phosphate and 1%-3% of a compound premix. The special compound feed is specially used during the breeding of the parent shrimps of Litopenaeus vannamei and is used for supplying nutrients required by the parent shrimps in the breeding stage; by adding multiple components which can mutually generate synergistic interaction effects, the digestion and utilization of the main nutrients are promoted, the immune capacity and health condition of prawns can be improved, the gonadal maturation quality is improved, and the hatching rate of fertilized eggs and the survival rate of larvae are increased.

The invention discloses a granularity-adjustable laying hen feed and a preparation method thereof and belongs to the technical field of feed processing. The preparation method of the laying hen feed mainly comprises the following steps: taking corns as the main raw materials of the laying hen feed; grinding the corns by a double-roller grinder; screening the grinded corns by a vibration sieve; further grinding the screen residues by a hammer grinder; uniformly mixing the further grinded screen residues with the screened grinded corns; grinding soybean meal, DDGS, corn bran, double-low vegetable meal, monosodium glutamate protein and palm meal by a hammer grinder; then preparing the laying hen feed according to the conventional method. Preferably, the ratio of the digestible amino acids in the laying hen feed is DLys: (DM plus C): DThr: DVal: DArg equals 100: 84: 67: 87: 94; moreover, the yeast powder fermented from the preserved bacteria Rhodotorula benthica WYN1 whose preservation code is CCTC No: M 2014592 is specially added in the laying hen feed; thus, the grinding time is shortened, the dust is reduced, the production efficiency is improved, the breeding effect is raised and the egg quality is improved.

The invention discloses a composite microecological preparation and an application thereof. The composite microecological preparation comprises saccharomycetes, acid-producing bacteria and bacillus, wherein the viable count ratio of the saccharomycetes to the acid-producing bacteria to the bacillus is (1-3): (1-4): (1-2), the effective viable count of each gram of the composite microecological preparation is greater than or equal to 1010 CFU/g, the saccharomycetes are selected from at least one of saccharomyces cerevisiae, phaffia rhodozyma, rhodotorula mucilaginosa and candida utilis, the acid-producing bacteria are selected from at least one of lactobacillus plantarum, enterococcus faecalis, enterococcus faecium, clostridium butyricum and lactobacillus rhamnosus, and the bacillus is selected from at least one of bacillus subtilis, bacillus licheniformis, bacillus coagulans, bacillus amyloliquefaciens and bacillus megatherium. According to the composite microecological preparation and the application thereof, the intestinal health level of animals can be improved, the growth of the animals can be promoted, the anti-stress capability of the animals can be improved, the immune system of the animals can be activated, and diseases can be reduced.