78 results about "Bakers Yeast" patented technology

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.

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.

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 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 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 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 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 controlling vibrio number in a prawn cultivation system. The method includes: in the 2-month cultivation period of 3cm juvenile prawns, feeding the prawns with feed, carbon source materials and yeast powder; sieving the cultivation water of a prawn pond with a 35-mesh screen to remove the retained large-particle-size biological flocs with the particle size being larger than 500 micrometers; allowing water obtained after the biological flocs are filtered to flow back into the prawn pond to achieve recycling. The method has the advantages that baker's yeast is added, carbon sources such as glucose are utilized effectively, harmful inorganic nitrogen such as ammonia nitrogen is assimilated, and water quality is improved; the large-particle-size biologicalflocs can be formed favorably, the biological flocs can be removed favorably, and accordingly the vibrio number in the prawn pond can be lowered.

The invention provides a preparation technology of a giant salamander protein peptide probiotic product. The preparation technology comprises the following specific steps of adding red jujubes to giant salamander meat, performing crushing, adding water and glucamylase, performing saccharification, adding sodium selenite, performing high-temperature sterilization, performing inoculation with baker's yeast, performing aerobic fermentation, and performing filtration so as to obtain filtrate I and filter residues I; adding water, neutral protease and calcium chloride to the filter residues I, performing heat preservation at 30-40 DEG C for 2-4h, then adding kiwi fruit juice obtained through mincing and peeling, performing stirring, and performing filtration so as to obtain filtrate II and filter residues II; performing high-temperature sterilization on the fruit residues I, adding the filtrate I, performing aerobic fermentation, and performing centrifuging so as to obtain supernatant III and precipitate III; adding the filtrate II to the precipitate III, performing heat preservation at 30-40 DEG C for 2-4h, and performing filtration so as to obtain filtrate IV; and performing high-temperature sterilization on fresh milk, adding lactic acid bacteria and bifidobacteria, performing fermentation to obtain fermented milk, uniformly mixing the fermented milk with the supernatant III andthe filtrate IV, and performing storage at 0-5 DEG C.

The invention discloses a baker yeast strain suitable for the fermentation of dough with a high sugar content, and a construction method thereof. The provided baker yeast strain is obtained by knocking off the sucrase coding gene SUC2 of an original strain. The high sugar content dough fermentation performance of the baker yeast strain is prominently improved compared to that of the parent strain. The CO2 yield is 925 mL after 2 hours of high sugar content dough fermentation. The fermentation performance of the strain is increased by 16.35% and the fermentation time is shortened by 12 minutes compared to those of the parent strain. The technical barrier and quality shortage during the sweet bread manufacturing process are solved. The cultured baker yeast strain does not have any special requirement on fermentation equipment, can be used under conventional equipment and conditions, and thus has a wide application prospect.

The invention relates to a preparation method of a corn straw feed leavening agent, and belongs to the technical field of feed processing. The preparation method comprises the following steps: respectively preparing culture solutions of lactobacillus plantarum, leuconostoc mesenteroides, bacillus subtilis, bacillus licheniformis, aroma-producing yeast and baker's yeast, centrifuging to obtain bacterial sludge of the strains, adding the bacterial sludge into sterile water, and uniformly stirring to obtain the finished product. The corn straw fermented feed prepared from the feed leavening agentis good in palatability and wide in application range, ruminants such as cattle and sheep can be fed, and monogastric animals such as chickens and pigs can also be fed.