65 results about "Yeast extract" patented technology

The application provides a sheep fattening complete granular feed and a preparation method and a feeding method thereof, relates to the technical field of feed, and the sheep fattening complete granular feed comprises the following components: ginseng stem and leaf, red yeast extract and sheep group basic feeding daily ration. The application solves the technical problems of high total ginsenoside extraction cost, low single stomach animal utilization rate, slow growth during the sheep fattening period and frequent outbreaks of diseases, achieves the technical effects of improving ginsenoside utilization efficiency, synergistically improving sheep immunity and improving the average daily weight gain of sheep during the whole period, and meanwhile, the process is simple, and the cost is low.

To provide a masking agent for off-flavors and off-odors derived from soy protein that can reduce off-flavors and off-odors derived from soy protein, a method for masking off-flavors and off-odors derived from soy protein, and a method for producing soy protein processed foods. [Solution] A masking agent for off-flavors and off-odors derived from soy protein, which contains yeast extract and fermented flavor liquid.

The present application relates to the technical field of seasoning package, in particular to a water-soluble plant source preservative seasoning package and a preparation method thereof, the seasoning package raw materials include drinking water, brewing soy sauce, brewing vinegar, edible salt, pine mushroom seasoning, ginger, cumin, Sichuan pepper, star anise, cassia bark, yeast extract and water-soluble polysaccharide of Inonotus obliquus, the water-soluble polysaccharide of Inonotus obliquus and the water-soluble active ingredients of ginger, cumin, Sichuan pepper, star anise and cassia bark form a synergistic antibacterial system to achieve preservation; in the present application, by introducing water-soluble polysaccharide of Inonotus obliquus, a synergistic antibacterial system is constructed with the water-soluble active ingredients of ginger, cumin, Sichuan pepper, star anise and cassia bark, and on the premise of not adding chemical preservatives, synthetic flavor enhancers and artificial additives throughout the process, the broad-spectrum antibacterial effect of the standard chemical preservatives is realized.

This invention proposes a Bacillus compound inoculant, its preparation method, and its application, relating to the field of microbial technology. The method of this invention includes the following steps: selecting 18%-25% glucose, 18%-25% yeast extract, 0.3%-0.7% manganese sulfate, 1%-3% potassium dihydrogen phosphate, 1%-3% diammonium citrate, 3%-7% sodium acetate, and 0.1%-0.5% arginine by mass fraction, with the remainder being distilled water, and thoroughly mixing them to prepare a fermentation medium; selecting Bacillus subtilis, Bacillus amyloliquefaciens, Bacillus licheniformis, Bacillus megaterium, and Bacillus lentigines, and obtaining a seed culture for inoculation at a constant temperature; mixing the various seed cultures in a ratio of 0.1-0.5:0.1-0.5:95-98:0.1-2:0.1-2 to prepare a compound inoculant, and fermenting to obtain the Bacillus compound inoculant. The compound microbial agent prepared by this invention can not only change the soil nutrient structure and the distribution of microbial communities in the soil, but also change the content of active ingredients in the rhizome of Ligusticum chuanxiong, thereby significantly promoting the growth of Ligusticum chuanxiong rhizome.

This invention relates to an anti-aging and repair composition containing hyaluronic acid peptides and its application. The composition comprises the following components: hyaluronic acid peptide composition, *Ulmus pumila* root extract, *Comfrey* extract, and *Alfalfa* extract; wherein the mass ratio of the hyaluronic acid peptide composition, *Ulmus pumila* root extract, *Comfrey* extract, and *Alfalfa* extract is (0.05-5):(0.1-3):(0.1-2):(0.1-2); the hyaluronic acid peptide composition includes yeast extract, collagen, and tetradecylaminobutyryl valine butyrate trifluoroacetate. The composition of this invention has a dual anti-aging effect of promoting collagen synthesis and inhibiting collagen degradation, effectively improving signs of aging such as skin laxity and fine lines. It also achieves a full-chain repair process of soothing, repairing, and strengthening, alleviating sensitivity and discomfort, strengthening the skin barrier, and ultimately achieving a highly effective and gentle anti-aging and repair effect.

This invention discloses a strain of *Bacillus saeformis* H1, its culture method, and its applications, relating to the field of microbial technology. The strain was deposited on March 31, 2026, at the China General Microbiological Culture Collection Center (CGMCC), with accession number CGMCC No. 38117. This strain exhibits strong environmental adaptability, can stably grow under neutral to strongly alkaline conditions, and secretes antibacterial substances with low toxicity and no pathogenicity. After optimization, its optimal liquid fermentation conditions are: 5 g / L yeast extract, 10 g / L peptone, 37 g / L sucrose, pH=10, temperature 25℃, rotation speed 140 rpm, and culture time 24 h. The fermentation supernatant of this strain shows significant inhibitory effects on Gram-positive bacteria such as *Staphylococcus aureus*, methicillin-resistant *Staphylococcus aureus*, and *Streptococcus pneumoniae*, and can be prepared into drug sensitivity tablets. The *Bacillus saeformis* H1 provided by this invention can be used to prepare antibacterial drugs or antibacterial infection drugs, providing a new strategy for alleviating the problem of antibiotic resistance.

The present application relates to the Pichia pastoris fermentation medium and fermentation method for expressing recombinant bovine lactoferrin, and belongs to the technical field of biochemistry, which solves the technical problem of improving the expression amount of bovine lactoferrin in the process of industrialized and large-scale preparation of recombinant bovine lactoferrin. The components and their proportions in the Pichia pastoris fermentation medium aqueous solution for expressing recombinant bovine lactoferrin are as follows: yeast extract 10-30 g / L, phosphoric acid aqueous solution 25-35 g / L, calcium sulfate 1.0-3.0 g / L, potassium sulfate 18-22 g / L, potassium hydroxide 4.0-5.0 g / L, glycerol 30-50 g / L, magnesium sulfate heptahydrate 7-13 g / L, ammonium chloride 4-5 g / L, PTM1 trace element solution 4-6 ml / L, and defoaming agent 1-2 ml / L. The high-density fermentation method of the present application is realized by controlling the technical parameters such as the dissolved oxygen amount, pH value, temperature and feeding medium rate in the fermentation process, so that the expression amount of bovine lactoferrin is improved to 4-5 g / L.

This invention relates to microbial culture. It provides a *Bacillus parabregas* culture medium and its applications, wherein the medium comprises at least one of glycerol, yeast extract, soybean peptone, corn steep liquor powder, ammonium sulfate, magnesium sulfate, and calcium carbonate. The *Bacillus parabregas* culture medium of this invention utilizes glycerol as a carbon source and yeast extract, soybean peptone, etc., as nitrogen sources for large-scale liquid fermentation of *Bacillus parabregas*, achieving a total bacitracin content of over 10.5 g / L. The proportions of each component can be controlled by feeding. Using this medium for *Bacillus parabregas* fermentation results in high bacitracin yield and controllable composition. The medium formulation is simple, inexpensive, readily available, safe, and environmentally friendly. The fermentation process is simple and controllable, with a short fermentation cycle, facilitating industrial-scale production and possessing high application value.

The present invention relates to a cosmetic composition that contains polysaccharides, yeast extract, and a fermented product of a strain having probiotic properties as active ingredients, and that is safe for the human body while having the effect of improving skin conditions. The cosmetic composition can be used to improve the microbial flora living on the skin, soothe the skin, reduce skin wrinkles, improve skin elasticity, soothe the scalp, improve scalp oiliness, prevent hair loss, or promote hair growth.

This utility model belongs to the field of yeast extract processing technology, specifically relating to an anti-clogging flow guiding device for a yeast extract centrifuge. It includes a centrifuge body and a feed pipe, with the feed pipe connected to the top of the centrifuge body. The top of the centrifuge body is equipped with a flow guiding mechanism and a vibration anti-clogging mechanism. The flow guiding mechanism includes a support frame, a servo motor, and a propeller. The support frame is fixedly installed on the top of the centrifuge body, the servo motor is fixedly installed on the top of the support frame, one end of the propeller is fixedly installed at the output end of the servo motor at its bottom, and the other end of the propeller extends into the interior of the feed pipe. The vibration anti-clogging mechanism includes a limit rod, a swing rod, a movable block, and a rotating motor. This utility model provides an anti-clogging flow guiding device for a yeast extract centrifuge, which, through its flow guiding and anti-clogging design, can effectively distribute the material evenly to all areas of the centrifuge, avoiding material accumulation and uneven separation, thus improving separation efficiency and effect.

The present application provides a kind of composite microbial fermentation inoculant, specifically, the fermentation inoculant includes: (a) composite microorganism, wherein the composite microorganism includes at least two kinds of microorganisms, and the microorganism is selected from the following group: bacteria, single-cell fungi, or a combination thereof;(b) saccharide component, wherein the saccharide component includes (b1) monosaccharide, disaccharide or a combination thereof, and (b2) molasses powder;(c) peptone;(d) yeast extract;And (e) optional salt material;Wherein, the fermentation inoculant is a dissolved solid preparation, and the number of viable bacteria in the preparation is 1 billion-100 billion per gram of preparation.The composite microbial fermentation inoculant of the present application has high strain stability, is easy to store and transport, is easy to use, and has low preparation cost.

The application discloses a mild multi-effect scrub containing biosugar lipids and amino acid surfactants and a preparation method thereof. Sodium cocoyl glycinate, biosugar lipids, nicotinamide and hydrolyzed yeast extract are used as core components, physical scrub particles are matched, and cosmetic acceptable carriers such as polyols and thickening agents are compounded, and the mild multi-effect scrub is prepared through processes such as phase solubility, homogenization, temperature reduction and dispersion. The application reduces the irritation of the product from the two dimensions of chemical cleaning and physical friction, realizes the cleaning and exfoliation, simultaneously achieves the multiple effects of skin color lightening, bacteriostasis and acne removal, the core components have synergistic effects, the problems of strong irritation, single function and large environmental burden of traditional scrubs are solved, the product is suitable for sensitive skin, has environmental friendliness and verifiable efficacy, and has a wide application prospect.

The application relates to a skin repair essence and a preparation method thereof. The skin repair essence comprises the following raw materials in percentage by weight: 0.2-0.6% gold-coated magnetic nanoparticles, 75-92% skin repair culture medium, 0.4-1.2% antioxidant and 0.1-1.3% humectant, and the rest is deionized water; wherein the skin repair culture medium comprises a cell in-vitro culture medium, a sturgeon caviar extract, a lactobacillus fermentation product and a brown algae extract; the cell in-vitro culture medium comprises low-sugar DMEM, RPMI-1640, MEM and protein peptides; the antioxidant comprises green tea extract, vitamin C, oat kernel extract and yeast extract; and the humectant comprises trehalose, xanthan gum and sodium hyaluronate. The scheme provided by the application can achieve the purpose of relieving aging by repairing damaged skin cells, and effectively improves the skin repair effect in a safe and effective manner.

This invention provides a compound umami-enhancing seasoning and its preparation method, belonging to the field of food seasoning technology. The compound umami-enhancing seasoning comprises: chicken essence powder, monosodium glutamate powder, white pepper powder, black pepper powder, edible salt, starch, edible glucose, chicken bone powder, beef bone powder, natural spices, aromatics, chicken powder seasoning, white sugar, yeast extract, compound soy sauce seasoning powder, plant protein, and edible additives. This compound umami-enhancing seasoning achieves a synergistic effect through multiple umami substances, combined with natural spices, aromatics, and meat and bone powder, resulting in a rich and lasting umami flavor, a complex and diverse flavor profile, a mellow taste, good stability, and ease of use, suitable for various scenarios such as cooking, cold dishes, and soups.

The present application provides a curry sauce, comprising: 85-90 parts by mass of soybean oil, 35-40 parts by mass of chopped chili pepper, 10-15 parts by mass of dehydrated coriander, 8-10 parts by mass of edible salt, 8-10 parts by mass of white granulated sugar, 5-12 parts by mass of monosodium glutamate, 4-10 parts by mass of raw garlic, 2-4 parts by mass of erythritol, 2-4 parts by mass of raw ginger, 1.5-2.0 parts by mass of oyster sauce, 1.5-2.5 parts by mass of chicken essence, 0.4-0.6 parts by mass of yeast extract, 0.6-0.8 parts by mass of capsaicin, and 0.1-0.3 parts by mass of capsicum red pigment. The two-step process of "cold treatment plus color protection agent and synergistic rehydration, low-temperature frying and fresh-keeping" is adopted for the dehydrated coriander, and the rehydration link uses a compound solution of erythritol, concentrated lemon juice and erythorbic acid to achieve the four effects of color protection, crispness preservation, taste retention and shelf life extension. By controlling the process parameters and taking advantage of the compound components, the unstable quality and short shelf life of the rehydrated coriander are solved.

This invention provides an acne-removing gel candy and its preparation method. The raw materials for preparing the acne-removing gel candy include anti-inflammatory substances, antioxidants, skin improvers, acne bacteria inhibitors, and gel fillers. The anti-inflammatory substances include Haematococcus pluvialis oil, vitamin C derivatives, and plant oils; the antioxidants include yeast extract. This invention inhibits acne formation through anti-inflammatory substances, alleviates the effects of skin inflammation on the dermis to accelerate acne elimination through antioxidants, improves skin properties through skin improvers, and inhibits the proliferation of acne bacteria to repair acne. This multi-faceted approach effectively inhibits acne formation, clears acne, and improves skin after acne treatment.

This invention relates to the agricultural field, specifically to a method for preparing and applying a carbon dioxide fusion element trap. It addresses the problem that polymeric film-forming agents added to foliar fertilizers easily form a continuous, dense, and impermeable physical film on the leaf surface, making it difficult for carbon dioxide to enter, interfering with normal photosynthesis and transpiration, and thus causing abnormal leaf metabolism. The method involves immersing mesoporous silica microspheres in a PEI solution to obtain PEI-loaded microspheres, then adding a solution of gelatin, chitosan, glycerol, and glutaraldehyde to deionized water to form a composite gel base solution. Finally, selenomethionine, seaweed oligopeptides, and yeast extract are mixed with the composite gel base solution in warm water to obtain the carbon dioxide fusion element trap. This invention, through careful material selection and structural design, cleverly achieves a balance between strong adhesion and high permeability, allowing it to firmly adhere to the leaf surface and eliminating the defect of clogging leaf stomata.

The invention discloses a probiotic fermentation method for improving total saponins of astragalus membranaceus based on response surface optimization, which comprises the following steps: inoculating a fermentation seed solution into a fermentation substrate containing astragalus membranaceus, and carrying out shake culture for 48 hours under the conditions of 40-45 DEG C and 150-200r / min; the inoculation amount is 1-5%; the fermentation seed liquid is obtained by culturing lactobacillus delbrueckii subsp. Bulgaricus CICC 20247; the fermentation substrate containing astragalus membranaceus comprises astragalus membranaceus powder, skim milk powder, white granulated sugar, yeast extract and sterile water. After the lactobacillus delbrueckii subsp. Bulgaricus CICC20247 liquid is used for fermenting the astragalus membranaceus, the content of total saponins in the astragalus membranaceus can be greatly increased, and the medicine effect of the astragalus membranaceus can be improved.

This application relates to the field of veterinary drug formulation technology, and discloses a cat anti-stress oral formulation containing pregabalin and its preparation method. The raw materials include: pregabalin-L-arginine co-ground micronized powder, isostearic acid, medium-chain triglycerides, hydrophobic fumed silica, and anhydrous yeast extract powder. The preparation method includes the following steps: weighing each raw material by mass; dissolving isostearic acid in medium-chain triglycerides by heating and stirring; starting high-speed dispersion under vacuum and constant temperature; introducing pregabalin-L-arginine co-ground micronized powder for reaction; introducing anhydrous yeast extract powder for dispersion; cooling and switching to low-speed stirring; adding hydrophobic fumed silica and running under vacuum; finally, static aging and packaging to obtain the finished product. This invention employs a technical solution of compounding pregabalin-L-arginine co-ground micronized powder, isostearic acid, and hydrophobic fumed silica in the oil phase, achieving the technical effect of thixotropic formulation and long-term static non-sedimentation.

The utility model discloses a kind of high-efficiency energy-saving high-protein yeast extract high-temperature dissolving and sterilization system, including heat exchanger for high-temperature dissolving and sterilization, material thermal energy recovery module, steam condensate thermal energy recovery module, steam heating module and cooling module are respectively equipped in the heat exchanger, on the basis of linear sharp heating, material thermal energy recovery module, steam condensate thermal energy recovery module are increased, on the one hand, material thermal energy and steam condensate thermal energy are recovered, on the other hand, form multi-section ladder heating, avoid sharp heating after causing protein denaturation, simultaneously reduce the consumption of steam and cooling water.

This invention discloses a solid seasoning for soy sauce brewing residue based on synergistic aroma enhancement through directional enzymatic hydrolysis and Maillard reaction, and its preparation method. The core steps include: 1) Targeted enzymatic hydrolysis: Mix soy sauce fermentation residue with water at a ratio of 1:2 to 1:10, add 0.1% to 0.5% cellulase and hydrolyze at 30 to 50°C for 10 to 30 hours, inactivate the enzyme in a boiling water bath for 15 minutes, then add 0.2% to 0.8% protease and hydrolyze at 45 to 65°C for 2 to 6 hours; 2) Maillard reaction: Mix the hydrolysate with 10% to 30% glucose at a ratio of 1:2 to 1:6 and react at 110°C for 50 to 90 minutes; 3) Compounding: 40 to 60 parts of the treated soy sauce fermentation residue, 1 to 4 parts of monosodium glutamate, 0.1 to 0.5 parts of disodium inosinate, 1 to 5 parts of sucrose, 10 to 30 parts of β-cyclodextrin, 0.2 to 0.8 parts of yeast extract, and 10 to 30 parts of salt. This invention is based on directional enzymatic hydrolysis and Maillard reaction to fully release the flavor substances of soy sauce fermentation residue. With the addition of auxiliary ingredients, it significantly enhances the soy sauce aroma and mellow taste of the seasoning, realizing the full-value utilization of soy sauce fermentation residue. It has both environmental benefits and commercial prospects and can be widely used in the food processing and seasoning field.

This invention provides a fruit fermentation liquid composition for enhancing bread flavor, comprising the following ingredients in parts by weight: fruit: 120-200 parts; cranberry juice: 150-300 parts; sugar: 100-200 parts; yeast extract: 2-10 parts; water: 200-500 parts; flour: 20-50 parts; Angel high-proof yeast: 1-10 parts; esterification enzyme: 1-5 parts. This invention, through a specific fermentation liquid formula, combines the addition of fruit acids, which, under the action of esterification enzyme, produce rich fruity and floral esters, which are then expressed in bread. Simultaneously, unreacted fruit acids and alcohols produced by yeast can improve the bread's texture and extend its shelf life.

The present application relates to a kind of preparation method of full quality microencapsulation of fermentation liquor of gamma-aminobutyric acid produced by recombinant bacillus subtilis. Recombinant bacillus subtilis (strain preservation in China General Microbiological Culture Collection Center, strain preservation number is CGMCC No.5550) is used as starting strain to carry out fermentation. For recombinant bacillus subtilis fermentation liquor system, ethyl cellulose, glycerol, sucrose, yeast extract, dipotassium hydrogen phosphate and gelatin are selected to carry out microencapsulation preparation, spray drying. The optimal addition concentration (mass / volume) of capsule material in catalytic mixed solution is 2.5% ethyl cellulose, 1.5% glycerol, 2.5% sucrose, 2% yeast extract, 0.15% dipotassium hydrogen phosphate and 0.3% gelatin. The optimal rotation speed when capsule material is mixed with catalytic liquid is 60rpm, and the optimal stirring time is 30min;The optimal speed of high-speed dispersion is 15000rpm, and the optimal dispersion time is 3min. The optimal air inlet temperature of capsule material and catalytic liquid mixed dispersion liquid spray drying is 160℃, the optimal air inlet temperature is 70℃, and the optimal feeding rate is 1.5L / min.

The application discloses a kind of sulfur copper nanobiological hybrid and its preparation method and application;The application is by electroactive bacteria inoculation to the LB liquid medium containing copper salt, anaerobic culture, obtain sulfur copper nanobiological hybrid;The LB liquid medium containing copper salt includes copper salt, lactic acid salt, yeast extract, trypsin and sodium chloride;The concentration of copper salt in the LB liquid medium containing copper salt is 0.25-0.5mM.The preparation process of the application does not depend on exogenous addition or endogenous production of toxic, easily dispersed H2S, improves the operation safety and environmental friendliness.No need to add cysteine and other expensive reagents as sulfur source or detoxification agent, greatly reduces the cost of raw materials;The hybrid obtained shows excellent performance in nitrogen recovery, and the overall nitrogen recovery efficiency is significantly higher than that of single bacteria or Cu 2‑x S material, with good application prospect.

The present invention relates to a culture medium composition for producing botulinum toxin, and more particularly to a culture medium composition for culturing Clostridium sp. strains capable of producing botulinum toxin. When a Clostridium botulinum strain is cultured using a culture medium comprising vegetable peptone, glucose, and yeast extract without animal-derived components, the growth rate of the strain is increased compared to existing culture media, and the strain can be safely cultured since animal-derived components are not included, thereby increasing the yield of botulinum toxin.

This invention discloses a formulation process for a vaginal antibacterial solution that combines antibacterial, repair, and purification functions. It relates to the field of antibacterial wash manufacturing. By weight, its active ingredients consist of 5-15 parts povidone-iodine, 3-8 parts Sophora flavescens root extract, 2-6 parts Cnidium monnieri extract, 1-5 parts yeast extract, 2-8 parts aloe vera extract, 1-4 parts witch hazel extract, and purified water. This invention achieves a synergistic closed-loop effect of antibacterial, detoxifying, and repairing functions through specific component combinations and ratios. Povidone-iodine, combined with Sophora flavescens root extract and Cnidium monnieri extract, achieves dual-targeted antibacterial action; Sophora flavescens root extract and Cnidium monnieri extract, combined with witch hazel extract, achieve active detoxification through physical and chemical adsorption solidification; and aloe vera extract and yeast extract synergistically promote mucosal repair.

This invention provides a method for preparing and applying a Pomacea canaliculata (golden apple snail) attractant based on the regulation of feeding and oviposition behaviors, belonging to the field of agricultural and forestry technology. The preparation method involves encapsulating Cyperus rotundus essential oil with β-cyclodextrin to obtain an essential oil inclusion complex; ultra-finely pulverizing glycine, sodium citrate, anhydrous magnesium sulfate, Acorus tatarinowii extract, capsaicin, and peppermint extract into ultra-fine functional powder; preparing microcapsule active powder from tea saponin and azadirachtin using maltodextrin and gum arabic; mixing sweet potato starch hydrolysate, yeast extract, essential oil inclusion complex, ultra-fine functional powder, microcapsule active powder, bentonite, and talc, then adding carboxymethyl cellulose and sodium alginate to form core particles, which are then coated with a coating solution to obtain the Pomacea canaliculata attractant based on the regulation of feeding and oviposition behaviors. This invention constructs an integrated trapping mode of active attraction, continuous residence, and targeted feeding based on the dual behavioral principles of Pomacea canaliculata's feeding preferences and oviposition tropism.

A mushroom essence seasoning and a preparation method thereof, the seasoning is composed of fresh edible fungi and specific blending ingredients, including refined salt, corn flavor sauce powder, rice powder, momordica grosvenori powder, malt dextrin, hydrolyzed vegetable protein powder, flavor yeast extract, monosodium glutamate, white pepper powder, the fresh edible fungi is selected from lentinus edodes or fresh flower mushroom, through pretreatment and fermentation of fresh edible fungi into edible fungus paste, mixing with ingredients into wet material, then granulating, rapid drying and screening to obtain regular granules, finally packaging to obtain finished products, the scheme does not use corn starch, avoids the problems of muddy soup, precipitation, corn smell and slow melting, while maintaining good granulation, providing two taste choices of flower mushroom and lentinus edodes, meeting different market demands, improving product quality and user experience.