86 results about "Bakers Yeast" patented technology

A miniaturized microbial fuel cell is described deriving electrical power from the biological activity of microbes, typically the metabolism of glucose by baker's yeast. Microfabrication techniques are used to miniaturize the components as well as the overall fuel cell and are capable of integration with other biomedical and implantable devices. Substantial reductions in both the size and the cost of implantable systems are thereby achievable. Electrode structures are used that facilitate electron transfer and power production giving favorable power densities in a miniature fuel cell. In addition, the microbial fuel cell of the present invention extracts glucose or other metabolite(s) from the ambient body fluids as its fuel, thus achieving a renewable, long-term power source for implantable biomedical devices.

The invention relates to a method for synthesizing glutathione using yeast cells. Gamma-GCS and GS in yeast cells are used, glucose is used as the energy, an intracellular glucolysis system is used to produce triphosadenine, glutamic acid, cysteine and glycin in reaction liquid are synthesized to form glutathione; saccharomyces cerevisiae, baker's yeast, candida and other yeast cells are permeabilized and then react in a reaction liquid composed of phosphate buffer, MgCl2.6H2O, CaCl2.2H2O, glucose, L-glutamic acid and L-cysteine, gamma-L-glutamoyl L- cysteine is produced, then glycin is added to produce glutathione; in the two-stage reaction, the inhabitation effect of glutathione to gamma-GCS catalytic reaction is greatly reduced; glutathione produced by the method has obviously improved product concentration and reaction yield.

A yeast biofilm microbial fuel cell has anode and cathode chambers, each containing an electrolyte medium, separated by a proton conducting membrane. A baker's yeast biofilm is induced to form on the anode under electrical poising. A method of making the MFC includes adding baker's yeast and yeast nutrient fuel source to the anode solution, connecting a resistor across the anode and cathode to enable current flow through the resistor for a selected time for poising the anode and formation of the anodic yeast biofilm, replacing the anode solution with a fresh quantity of yeast-free solution, adding fuel source to the solution, and continuing to run the MFC for a selected time under resistance. The steps of replacing the anode solution, adding fuel source and running the cell under load are repeated until the baker's yeast has formed a suitable anodic biofilm.

The invention discloses a yeast beverage, which comprises yeast and a yeast extract, wherein the yeast extract is beer yeast mud, baker yeast or active dry yeast in alcohol production. The invention provides a novel natural health-care product which is researched and developed by using beer yeast and contains proteins, various vitamins, Chromium yeast minerals, minor elements, edible fibers and rich nucleic acids. The yeast beverage has full nutrients and combined characteristics of protein beverages, juice, mineral water, nucleic acid beverage, milk products, wines and the like.

The invention discloses a preparation method and application of a composite bacteria preparation for a livestock and poultry fermented feed. Selected lactic acid bacteria are anaerobes which are subjected to homolactic fermentation, mainly comprise enterococcus faecium, enterococcus faecalis and streptococcus thermophiles, are the most common lactic acid bacteria in the livestock and poultry industry; no gas is substantially produced in a metabolism process; a fermentation system is only required to keep better tightness; and the composite bacteria preparation has better applicability for fermentation of most of livestock and poultry feeds. Selected yeast is bread yeast, i.e., the yeast which is circulated on the commercial market for producing bread; and every gram of bread yeast dry powder contains 100 hundred millions of cfu active yeasts; the water content of the prepared composite bacteria preparation generally does not exceed 9.0 percent; the composite bacteria preparation can be stored for 3-6 months under a vacuum package condition; the number of the yeasts is kept basically unchanged; and the number of the active lactic acid bacteria is kept at about 50-65 percent. The fermentation can be excellently started by inoculating 0.1-0.2 percent of composite bacteria product in the livestock and poultry fermented feed.

The invention provides a yeast autolysate and a preparation method thereof. The autolysate is prepared by the following method: adding water to yeast raw materials to prepare a solution with a concentration of 5%-28%, and the yeast raw materials include molasses or baker's yeast or brewer's yeast Or at least one of medicinal yeast or corn syrup or corn starch, the solution is placed in an enzymatic hydrolysis tank, and heated to 50 ℃-70 ℃, the pH value is adjusted to between 4.5-7.0, and then the enzyme preparation is added, The weight of dry matter in the enzyme preparation is between 0.1% and 1.0%, until the dry basis weight ratio of amino acid nitrogen is detected to be greater than or equal to 1.5%. The present invention also provides a preparation method of the above yeast autolyzed powder, which is realized by using the above steps. The yeast autolyzed powder of the invention has low production cost and high production efficiency, and can be used as a substitute product of yeast extract powder.

Synthesis of (2S,3S)-2-benzoyl-aminomethyl-3-hydroxy-butyrate ester series compound by yeast cell asymmetry is carried out by taking baker yeast as raw material and converting to obtain the final product by one-step biological method. It's effective and efficient and has better substrate percent conversion.

The invention discloses high-activity dry yeast applicable to high-sugar dough fermentation. The high-activity dry yeast applicable to high-sugar dough fermentation is prepared by carrying out strain activation on baker's yeast recombined strain, preparing a seed liquid, culturing in a fermentation tank, separating and washing, filtering, drying and packaging, wherein the baker's yeast recombined strain is prepared by knocking off a full SUC2 gene sequence of encoded cane sugar transferase in a yeast original strain. After the high-sugar dough is fermented for 2 hours by using the high-activity dry yeast, the CO2 generation amount is greater than 1025mL, the high-activity dry yeast is high in fermentation capability in high-sugar dough, the technical barrier and quality defects in the sweet bread making process are solved, the production technique level of the baking food industry in China is improved, and the bred high-activity dry yeast has no special requirement on fermentation equipment or condition and can be used in ordinary factory equipment and condition, and thus the high-activity dry yeast disclosed by the invention has wide application prospect.

The invention relates to an organic compound fertilizer special for a cucumber rich in chromium and glutathione and a preparation method of the organic compound fertilizer. The organic compound fertilizer comprises by weight of 40-50 parts of humus, 10-15 parts of rice bran, 10-15 parts of dry livestock and poultry manure, 5-8 parts of compound amino acid, 5-8 parts of chitin, 1-2 parts of soluble glucan, 6-8 parts of nitrogen, 6-8 parts of phosphorus, 8-10 parts of kalium, 6-10 parts of medium trace elements, 50-80 parts of bread yeast fermentation wastewater and 120-200 parts of chromium rich yeast fermentation liquid. According to organic compound fertilizer special for the cucumber rich in the chromium and the glutathione, the compatibility is reasonable, the nutrition is balanced, besides nitrogen, phosphorus and kalium which are necessary for the fertilizer, the fertilizer further contains multiple trace elements and is further rich in organic matters, the fertility is released slowly, the fertilizer efficiency is enduring, and the compound amino acid services as a synthetic precursor of the glutathione in the cucumber, so that synthesis of the glutathione in the cucumber can be promoted, and the nutrition value of the cucumber is improved.

The invention discloses a method for cultivating branchionus plicatilis through waste plastic buckets and belongs to the field of aquaculture. According to the core of the method, three kinds of marine microalgae are firstly cultivated in round flasks with flat bottoms in a mixed mode, then, partial cow dung, rabbit dung, baker yeast powder, minced fish, milk powder, soybean sauce grains, chicken manure and the like are added to mixed alga liquid to obtain branchionus plicatilis bait liquid, and the branchionus plicatilis bait liquid is put into the pre-prepared waste plastic buckets containing a culture solution to conduct aerated feeding culture on the branchionus plicatilis. Branchionus plicatilis bait produced through the method is scientific and reasonable in formula and has complete nutrients, and the branchionus plicatilis grows fast, is robust and has a high yield. The waste plastic buckets are adopted for cultivating the branchionus plicatilis, the waste plastic buckets are convenient to rinse, good in light transmission, capable of being used repeatedly and not prone to waste, waste is used, and capital is saved.

The invention discloses a method for preparing a cobalt phosphide / biochar composite material by taking yeast nucleic acid as a phosphorus source and a carbon source. The method comprises the following steps: with nucleic acid extracted from baker's yeast cells through a concentrated salt method as a raw material, firstly mixing the nucleic acid with a cobalt nitrate solution, centrifuging and washing a generated complex precipitate, adding a sodium chloride-potassium chloride mixed salt accounting for 1-10 times the mass of the complex precipitate, conducting uniform grinding, and carrying out calcining in a protective atmosphere of 500-1000 DEG C to obtain the cobalt phosphide / biochar composite material. The material not only can adsorb bisphenol pollutants in a water body, but also can activate a potassium peroxymonosulfate composite salt to effectively degrade the bisphenol pollutants. According to the invention, phosphorus and carbon resources in biomass are recycled; the invention also provides a preparation method of the transition metal phosphide; and efficient removal of bisphenol pollutants in water is realized.

The invention mainly relates to the technical field of pet feeds, and discloses a hair beautifying feed for pet dogs. The hair beautifying feed is prepared from the following raw materials of millet, oat, black sesame seeds, black beans, whole milk, Angel baker's yeast, compound protein, composite vitamins, animal multiple minerals, a nutrition extraction agent, vegetable oil, brown seaweed polysaccharide and dipotassium glycyrrhizinate. The raw materials are fermented with the Angel baker's yeast, so that the fragrance and the nutrient components are increased, the nutrition is balanced, the palatability is good, digestion and absorption are promoted, the skin and the hair of animals are nourished, the hair growth condition is fundamentally improved, the hair loss quantity is reduced to 17.4%, and hair is smooth, glossy and artistic in shape; various nutrition extraction agents are added, so that the disease resistance of the pet dogs is strengthened, the attack rate is reduced to 2%, and vigor and cost are reduced; and the hair beautifying feed is free from additives and safe and healthy, and the peculiar smell of excrement and urine is reduced.

The invention discloses a preparation method of a soybean sauce flavored base material. The method takes bread yeast as a raw material and comprises the steps of yeast self-dissolving, phosphoric acid hydrolysis and ethanol extraction to prepare the soybean sauce flavored base material. The base material prepared by the method has a typical soybean sauce flavor and has prominent delicious and thick flavor; after the soybean sauce flavored base material is added into raw soybean sauce, the sauce flavor of the soybean sauce can be obviously improved and the delicious and thick flavor of the soybean sauce is improved.

The invention relates to an opening bait feed for shrimp fries and a preparation method of the opening bait feed. The opening bait feed for shrimp fries is prepared by processing the following raw materials in parts by weight: 20-30 parts of strong flour, 30-50 parts of fish meal, 5-10 parts of shrimp powder, 2-5 parts of meat and bone meal, 5-8 parts of soybean meal powder, 2-10 parts of rice bran protein, 3-5 parts of a glutathione-rich baker's yeast extract, 1-2 parts of a glutathione-rich selenium-rich yeast extract, 5-6 parts of glucan, 0.5-1.0 part of astaxanthin, 1-3 parts of soybean lecithin, 0.5-1 part of composite vitamins and 1-1.5 parts of complex mineral salt. According to the opening bait feed and the preparation method thereof disclosed by the invention, a reasonable enzymolysis technology is adopted, so that the obtained yeast powder is high in the content of total nitrogen and the content of amino-acid nitrogen, high in nutrient value, low in ash content and good in product quality; the yeast powder is used for the bait feed for the shrimp fries and good in palatability, the immunity of the shrimp fries can be enhanced, and the growth rate of the shrimp fries can be increased; the rice bran protein is high in nutrient value and good in palatability, when the rice bran protein is matched with other components for use, the shrimp fries can be promoted to eat, the immunity of the shrimp fries can be enhanced, and the growth rate of the shrimp fries can be increased.

The invention discloses a method for preparing glutathione freeze-dried powder, which relates to a method for preparing reduced glutathione (GSH) freeze-dried powder by a reverse micelle extraction method. The method takes bread dry yeast as a raw material to prepare extract containing GSH and a P204 reverse micelle solution first, then the GSH extract is extracted through the reverse micelle solution, then a sodium chloride solution is used to back-extract the reverse micelle solution after the extraction, and then a finished product is prepared through hyperfiltration and freeze drying. The method is simple and has mild preparation conditions, the back-extracted reverse micelle solution can be regenerated and utilized, the method has low production cost; in the prepared freeze-dried powder, the content of the GSH is high up to 95.2 percent, the recovery rate is high up to 86.3 percent, and a compound amino acid concentrated solution byproduct can be prepared. The GSH freeze-dried powder prepared by the method can be widely used as antioxidant preservatives and flavor additives in pharmaceutical raw materials and food industry, and can also be used as feed additives and bread yeast culture media and so on.

The invention discloses an old dough yeast and a preparation method thereof. The old dough yeast comprises flour and mixed liquid, wherein the mixed liquid comprises the ingredients of bread yeast milk, wine yeast milk, rosin yeast milk, lactic acid bacteria milk, trehalose, edible glycerol and food-grade calcium carbonate through mixing. The preparation method of the old dough yeast comprises the following steps of: (1) preparing the bread yeast milk; (2) preparing the wine yeast milk; (3) preparing the rosin yeast milk; (4) preparing the lactic acid bacteria milk; (5) weighing the bread yeast milk, the wine yeast milk, the rosin yeast milk, the lactic acid bacteria milk, the trehalose, the edible glycerol and the food-grade calcium carbonate and evenly mixing the ingredients to prepare the mixed liquid; (6) evenly mixing the flour and the mixed liquid, extruding and granulating; and (7) drying and dewatering the granules. The old dough yeast prepared by the method provided by the invention remains the advantages of high leavening speed of steamed bread by bread yeast. The finished products of steamed bread are white and soft, the pores of steamed bread are arranged evenly and the steamed bread has the sweet smell of old dough steamed bread.

The invention relates to a preparation method of organic fertilizer for citrus, which comprises the following steps: pulverizing kitchen waste, inoculating a first fermenting agent which is mixed yeast powder containing bread yeast, candida and rhodotorula for primary fermentation to obtain a primary fermentation product, adding organic mixed waste of livestock and poultry waste and straw into theprimary fermented product, inoculating a second fermenting agent, fermenting to obtain a final fermented product, adding rooting powder, and drying and packaging to obtain the organic fertilizer forcitrus. Compared with the existing citrus organic fertilizer, the organic matter content, humic acid content, microorganism quantity, potassium content, medium trace element total content and magnesium content in the obtained citrus organic fertilizer are improved, and particularly, the potassium content and magnesium content in the obtained citrus organic fertilizer have obvious effects of improving the yield of citrus, the weight of a single fruit and the number of fruits on a single plant crop.

A bakers' yeast strain characterized by having an isobutyric acid content in dry cells of 150 ppm or less and showing a very weak offensive taste and odor characteristic of yeast. This yeast strain is obtained through sexual reproduction between a monoploid yeast strain obtained by germinating spores of a diploid bakers' yeast strain which may be freeze-tolerant and another monoploid yeast strain obtained by germinating spores of a diploid alcohol or wiled-type yeast strain whose offensive taste and odor characteristic of yeast is weak, followed by screening the resulting yeast strains to select those having a weak offensive taste and odor characteristic of yeast and, if necessary, being freeze-tolerant.

The invention belongs to the field of tea processing and relates to a kudzuvine flower-honey tea product. The kudzuvine flower-honey tea product is prepared from the following raw material ingredientsin parts by weight: 20-35 parts of kudzuvine flowers, 10-20 parts of ampelopsis grossedentata, 10-20 parts of honey, 5-10 parts of lotus leaves, 1-3 parts of barbary wolfberry fruit and 5-10 parts ofkudzuvine flower concentrated liquor. The kudzuvine flower-honey tea product is obtained by carrying out steps of extracting, mixing, fermenting and drying. According to the invention, by virtue of away of spraying the kudzuvine flower concentrated liquor, the utilization rate of the kudzuvine flowers can be increased, the fragrance of the kudzuvine flowers also can be beneficially enhanced, andthe absorption of the fragrance of the kudzuvine flowers also can be facilitated. A high temperature and high humidity way is adopted, bread yeasts can be autolyzed rapidly, and destruction of the original flavor in tea due to fermentation also can be reduced. By carrying out fermentation treatment on honey, glucose content in the honey is greatly reduced, and the drinking range of a honey product is expanded.

The invention discloses a method for solid-state fermentation of andrographis paniculata residues to produce a pig bio-feed, and the product and an application of the product. The andrographis paniculata residues are used as the main raw material, wheat bran with the amount 50%-150% of the dry weight of the andrographis paniculata residues and a small amount of cellulase are auxiliarily added, anda combination of lactobacillus acidophilus and baker's yeast is used for solid-state fermentation in a barreled anaerobic environment; the water content of the fermentation material is 28%-45%, and the material is aged after fermentation is performed for 5-10 d in a condition of the ambient temperature of 10 DEG C-30 DEG C. The fermented feed can be stored stably for 15 d in high-temperature seasons without mildew, can be stored stably for 40 d in winter without mildew, and can basically meet the general circulation requirements of farmers. The method has the advantages of less equipment investment and simple operation, and is suitable for promotion and application in feed production enterprises and large-scale farms.

The invention discloses a quick-fermentation bread yeast strain and a breeding method thereof. The bread yeast strain is Saccharomyces cerevisiae Sy-5-11L with the storage number of CGMCC No 5637. The fermentation capacity of the no-sugar dough is remarkably improved on the condition of not affecting other fermentation performances of the strain; and 950 mL of CO2 is generated one hour before the fermentation of the no-sugar dough. Compared with the parent strain, the fermentation capacity is improved by 22.58% and the repression degree of the glucose is reduced by 17.05%. The repression factor coding gene MIG1 with the repression action in the strain bread yeast CICC 31616 glucose is removed, and a strong promoter PGK1 is selected to over-express maltase coding gene MAL6S to achieve the breeding method of the bread yeast strain. The bread yeast strain obtained by the breeding method has no special requirements to the fermentation equipment and fermentation conditions, and the equipment and the conditions of a general factor can be applicable, and so the bread yeast strain has an extensive application prospect.

The invention relates to a new method for preparing a novel high-efficiency porous microcapsule biocatalyst by combining a coaxial double-layer technology and an in-situ erosion punching technology. A microcapsule with a diameter of 3-4mm is firstly prepared, wherein the inner core of the microcapsule comprises permeability beer or bread yeast cells, and an outer-layer shell of the microcapsule is prepared by polyvinyl alcohol / calcium alginate mixed gel; and finally, the mechanical strength of an outer layer of the microcapsule is increased by further solidifying through freezing and thawing repeatedly. Because cellular fluid is in the microcapsule, the microcapsule biocatalyst which is similar to a micro-bioreactor is formed; in addition, a phosphate solution or other calcium-ion complexing agents are used for carrying out chemical erosion to dissolve partial calcium alginate gel by the in-situ erosion punching technology in order to achieve an in-situ erosion punching purpose, thereby a microchannel is formed to promote the transmission of micromolecular materials and products in a gel coating layer, and moreover, the catalytic activity of cells in the porous microcapsule core is increased by the permeability treatment of the beer or bread yeast cells. Due to the adoption of the method, the novel high-efficiency porous microcapsule biocatalyst has high cell capacity, strong catalytic effect, low diffusional limitation and high mechanical strength and is used to prepare important chiral drugs, such as chiral alcohol, and the like and a medical and chemical intermediate.

The invention relates to an organic compound fertilizer special for a cucumber rich in selenium and glutathione and a preparation method of the organic compound fertilizer. The organic compound fertilizer comprises by weight of 40-50 parts of humus, 10-15 parts of rice bran, 10-15 parts of dry livestock and poultry manure, 5-8 parts of compound amino acid, 5-8 parts of chitin, 1-2 parts of soluble glucan, 6-8 parts of nitrogen, 6-8 parts of phosphorus, 8-10 parts of kalium, 6-10 parts of medium trace elements, 50-80 parts of bread yeast fermentation wastewater and 120-200 parts of selenium rich yeast fermentation liquid. According to organic compound fertilizer special for the cucumber rich in the selenium and the glutathione, the compatibility is reasonable, the nutrition is balanced, besides nitrogen, phosphorus and kalium which are necessary for the fertilizer, the fertilizer further contains multiple trace elements and is further rich in organic matters, the fertility is released slowly, the fertilizer efficiency is enduring, and the compound amino acid services as a synthetic precursor of the glutathione in the cucumber, so that synthesis of the glutathione in the cucumber can be promoted, and the nutrition value of the cucumber is improved.

The invention relates to the technical field of pesticide, in particular to a preparation method of a drosophila melanogaster attractant. According to the method, ethyl acetoacetate and ethyl chloroacetate are taken as raw materials, a product similar to sex hormone in male drosophila melanogaster is formed through enzymatic reduction reaction, Baker yeast has high reproductivity and relatively high activity, the obtained product is high in purity and activity through enzymatic reaction in the condition, the extraction efficiency is further improved, heterosexual drosophila melanogaster is attracted to be aggregated through the divergence of sex pheromone of drosophila melanogaster, natural enemies are effectively protected and utilized, pollution is reduced, the environment is protected,the method has good efficacy for intensively killing drosophila melanogaster population, the killing base is high, and the control effect is good. The method has the advantages that a sex attractant and pathogenic microbial flora are combined, drosophila melanogaster is firstly aggregated and is then infected and killed biological control microbial strain, chemical residues do not exist during theprocess, and secondary pollution cannot be produced, so that the effect of preventing, treating and controlling drosophila melanogaster is achieved.

The invention discloses a method for preparing an iron phosphide / carbon composite material by using yeast. The method comprises the following steps of: with baker's yeast, ferric trichloride hexahydrate and ammonium bicarbonate as raw materials, loading a certain amount of iron oxyhydroxide on the surface of the baker's yeast by using a coprecipitation method, centrifugally washing the generated yeast / iron oxyhydroxide compound, conducting freeze-drying, and carrying out calcining in a protective atmosphere at 700-1000 DEG C to obtain the iron phosphide / carbon material with a pore structure. The material can catalyze oxygen in an aqueous solution to generate active oxygen components to degrade sulfamethoxazole. According to the invention, phosphorus resources in biomass are reutilized, a preparation method fortransition metal phosphide is provided, and efficient removal of sulfamethoxazole in a water body is realized.