96 results about "Brewers Yeast" patented technology

The invention is suitable for the technical field of health care, and provides a health-care food formula for improving sleep. Comprising the following raw materials in parts by weight: 150-250 parts of whole-grain oatmeal, 100-200 parts of germinated brown rice powder, 60-80 parts of pumpkin seeds, 50-60 parts of black sesame, 40-50 parts of flaxseeds, 62-70 parts of dried sour cherries, 55-60 parts of dried figs, 45-52 parts of dried bananas, 20-25 parts of chamomile flower powder, 18-20 parts of ground cinnamon, 50-60 parts of fructus cannabis protein powder, 70-80 parts of millet powder, 35-40 parts of hericium erinaceus powder and 18-20 parts of ganoderma lucidum spore powder. The beverage is prepared from 48-50 parts of fructo-oligosaccharide, 35-40 parts of date palm paste, 25-30 parts of beer yeast powder, 28-30 parts of walnut oil, 15-20 parts of semen ziziphi spinosae and 10-15 parts of semen boitae. Various nutritional foods are adopted, so that the problem of difficulty in falling asleep caused by insufficient secretion of melatonin can be solved, and anxiety, light sleep caused by excessive activity of brain waves and the like can be relieved.

The invention relates to the technical field of feed and fermentation, in particular to compound feed for promoting healthy growth of micropterus salmoides as well as a preparation method and application of the compound feed. The compound feed is prepared from the following components in parts by weight: 30 to 40 parts of fish meal, 10 to 15 parts of chicken meal, 0 to 10 parts of tenebrio molitor protein, 9 to 11 parts of fermented soybean meal, 7.5 to 9.5 parts of egg powder, 1 to 6 parts of beer yeast powder, 4 to 10 parts of flour, 2 to 3.5 parts of cassava starch, 1 to 3 parts of fish oil, 0.6 part of monocalcium phosphate, 0.3 to 1 part of compound vitamin, 1.2 to 3.7 parts of mineral substance mixture, 2 to 3 parts of EPA (eicosapentaenoic acid) and 3 to 4.4 parts of DHA (docosahexaenoic acid). According to the compound feed disclosed by the invention, the fermented soybean meal and the tenebrio molitor protein are combined to replace part of fish meal, so that the cost of the feed is effectively reduced, the organism immunity and disease resistance of the micropterus salmoides are improved, the intestinal health of the micropterus salmoides is improved, and the culture benefit is comprehensively improved.

This invention provides a novel method for preparing a medical collagen sponge, relating to the field of medical sponge technology. The invention uses yeast extract obtained by Soxhlet extraction of brewer's yeast as a raw material, which is mixed and reacted with polyvinyl alcohol and graphene oxide to obtain the novel medical collagen sponge. The medical collagen sponge prepared by this invention exhibits excellent performance and good hemostatic effect. Furthermore, the preparation method is simple, and it degrades postoperatively, demonstrating significant application value in the field of medical materials.

The invention provides crab feed capable of improving the quality of crab cream. The feed is prepared from the following raw materials in parts by weight: 15-25 parts of white fish meal, 10-15 parts of fermented soybean meal, 50-60 parts of squid visceral meal, 45-50 parts of krill meal, 25-30 parts of beer yeast, 200-220 parts of high gluten flour, 45-50 parts of wheat bran, 10-20 parts of soybean lecithin oil, 5-10 parts of a vitamin premix special for crabs and 5-10 parts of a mineral premix special for crabs. According to the crab feed capable of improving the quality of the crab cream, on the basis of ensuring the ingestion and intestinal health of crabs, conditions are created for efficient nutrient absorption and utilization, then gonad development and flavor substance accumulation are driven through key substances, meanwhile, a three-dimensional anti-oxidation and immune protection system runs through all the time, the body health is guaranteed, and the crab feed has the effects of improving the crab cream quality and improving the crab cream quality. The method has the advantages of simple operation, stable color and flavor of the crab cream, sufficient energy supply in the whole process, and synergistic operation of all the systems, so that the disease resistance and survival rate of crabs are improved, and the accumulated nutrient substances are efficiently converted into the plump degree, delicious flavor and attractive color of the crab cream.

The invention belongs to the technical field of insect feeding, and particularly relates to artificial feed for spodoptera frugiperda. Comprising the following raw materials in parts by mass: 10 to 30 parts of soybean meal, 30 to 50 parts of wheat germ, 70 to 100 parts of wheat bran, 10 to 50 parts of corn flour, 20 to 50 parts of crushed corn leaves, 15 to 40 parts of beer yeast powder, 5 to 30 parts of five-vitamin glucose, 5 to 20 parts of casein, 5 to 15 parts of ascorbic acid, 25 to 35 parts of agar powder, 0.5 to 2.0 parts of choline, 1.0 to 3.0 parts of sorbic acid, 0.1 to 0.5 part of inositol, 0.05 to 0.20 part of streptomycin sulfate, 1.0 to 3.0 parts of methyl parahydroxybenzoate, 15 to 30 parts of konjaku flour, 15 to 35 parts of milk powder, 0.2 to 2.0 parts of vitamin B6 and 1.0 to 1.0 part of corn germ oil. 5.0 parts of water and 1000 to 1500 parts of water. The artificial feed can significantly shorten the developmental duration of spodoptera frugiperda and improve the pupation rate and eclosion rate.

The present invention discloses a pet food containing fish-derived raw materials with added vitamins and having the efficacy of beautifying hair and skin care, and a preparation method thereof. The pet food containing fish-derived raw materials with added vitamins of the present invention comprises the following raw materials in parts by weight: 8-16 parts of salmon, 1-5 parts of salmon fish oil, 50-60 parts of chicken, 10-15 parts of chicken liver, 10-15 parts of chicken heart, 2-5 parts of sweet potato powder, 1-5 parts of brewer's yeast powder, 2-5 parts of chicken oil, 1-2 parts of psyllium powder, 1-2 parts of chicory root powder, 1-2 parts of cellulose, 0.5-2 parts of egg yolk lecithin, 0.2-0.8 parts of polyglycerol fatty acid ester, 5-20 parts of water, 0.2-0.5 parts of vitamin E, and 0.05-0.1 parts of agar. The pet food containing fish-derived raw materials with added vitamins of the present invention is nutritionally comprehensive, can enhance the physique of pets, help the growth of pet hair, and make the pet hair color bright and shiny.

The invention relates to a compound feed capable of improving summer high-temperature resistance of haliotis diversicolor and a preparation method of the compound feed, and belongs to the field of aquatic feed. The compound feed disclosed by the invention is prepared from the following raw materials: dl-alpha-tocopherol and selenium-enriched yeast. The green disc abalone compound feed comprises the following basic components: fish meal, soybean meal, vital gluten, high gluten flour, fish oil, soybean lecithin, composite vitamins, composite minerals, beer yeast, kelp powder, vitamin C, choline chloride, sodium alginate, monocalcium phosphate, ethoxyquin and microcrystalline cellulose. Dl-alpha-tocopherol and selenium-enriched yeast are added as additives on the basis of the basic raw materials. The invention further provides a preparation method of the green disc abalone oversummer feed. The prepared finished feed can reduce the accumulative death rate of the green disc abalone in the summer culture period, and solves the problem of safe summer crossing of the green disc abalone.

The invention relates to the technical field of feeds, in particular to a diatomite carrying agent enriched rice polysaccharide feed and a preparation method thereof. The raw materials comprise diatomite, rice, glutinous rice, flour, dry yeast, beer yeast, rhizopus sweet rice wine koji, raw rice flour, glutinous rice flour, brown sugar, soybean meal, saccharifying enzyme, sodium propionate, sodium lactate, astragalus membranaceus, liquorice, angelica sinensis, radix angelicae, clove, malt, momordica grosvenori, codonopsis pilosula and flaccid knotweed herb. The diatomite carrying agent enriched rice polysaccharide feed disclosed by the invention contains extremely rich polysaccharides, and is safe and nutritional; the preparation process of the feed is ecological and environment-friendly, can be fully copied, is easy to prepare, low in price and remarkable in economic benefit, meanwhile, the value of the rice is increased, and the feed has great strategic significance for maintaining food safety.

The invention belongs to the field of breeding, and particularly relates to a feed for breeding lumbricus and a preparation method of the feed. The corn straw, the decomposed cow dung and the pseudo-ginseng dregs are used as core raw materials, and functional additives such as the oyster shell powder and the beer yeast paste are used as auxiliary materials, so that the carbon nitrogen ratio and trace elements (such as selenium) are optimized, and the nutritional and medicinal values are ensured. Wherein after the pseudo-ginseng decoction dregs are mixed with the honey water for fermentation, other components in the feed are supplemented, so that the growth of the pheretima can be effectively promoted, and the medicinal value of the pheretima can be improved. The main raw materials are pretreated and then mixed with the auxiliary materials to build a pile for fermentation, temperature-controlled pile turning is performed, pH is adjusted, efficient degradation and sterilization are achieved, and the feed capable of promoting growth of the lumbricus and improving the medicinal value of the lumbricus is obtained.

The invention discloses a feed for feeding cordyceps sinensis host hepialus larvae as well as a preparation method and application of the feed, and relates to the technical field of artificial feeds. The feed comprises the following components in parts by weight: 5-20 parts of beer yeast powder and / or casein, 30-80 parts of wheat germ powder, 20-40 parts of carrot powder, 0.2-5 parts of a modified preservative, 0.05-0.2 part of antibiotics, 0.2-5 parts of vitamins, 0.01-1 part of edible oil, 6-15 parts of agar and 200-400 parts of water. The modified preservative is composed of a chitosan oligosaccharide-natamycin compound subjected to plasma activation treatment and potassium sorbate according to the ratio of 1: 3-1: 5; a modified preservative composed of a chitosan oligosaccharide-natamycin compound subjected to plasma activation treatment and potassium sorbate is adopted, a porous microsphere structure is formed through a specific preparation process, and the contact area of the preservative and the feed is greatly increased. Agar and water form a gel matrix at a specific temperature, and nutritional ingredients and the like are injected into a coaxial micro-fluidic device, so that the preservative effect of the feed is remarkably enhanced.

The invention discloses nutrition-balanced flour assisting in pancreas islet repair as well as a preparation method and application of the nutrition-balanced flour. The nutrition-balanced flour is prepared from the following raw materials in parts by mass: 40-60 parts of whole grains, 10-15 parts of beans, 5-15 parts of vital gluten, 7-10 parts of potatoes, 7-10 parts of vegetables, 5-8 parts of bacteria and algae, 5-8 parts of nut seeds, 3-5 parts of medicinal and edible food and 3-5 parts of beer yeast. The invention provides more comprehensive nutrition powder containing whole grains, beans, potatoes, nuts and the like, and further comprises common food with the effect of reducing blood sugar and medicinal and edible food which has the effect of reducing blood sugar and can prevent diabetic complications, and the nutrition flour has the following functions: balanced nutrition is provided for the body; blood sugar reduction is assisted; the islet cells are assisted to repair; and diabetic complications are prevented. The invention relates to an application of nutrition-balanced flour assisting in pancreas islet repair. The flour is used for making steamed buns, dumplings, steamed stuffed buns, wontons, noodles, cakes, biscuits or other flour products.

The utility model discloses a beer yeast adding device, the device is connected between the boiling pot and fermentation tank, and the device includes pump body, plate cooler, yeast adding jar, main pipe and branch pipe, and the liquid outlet of boiling pot is communicated with the liquid inlet of fermentation tank through pump body, the low temperature passage of plate cooler and main pipe in proper order, and the branch pipe is connected with the main pipe in parallel, and the yeast adding jar is installed on the branch pipe. The device is communicated with the yeast adding jar on the conveying pipeline between the boiling pot and fermentation tank, can directly add the yeast into the wort in conveying on the basis of not opening the boiling pot and fermentation tank, prevents the wort from introducing too much oxygen and causes over fermentation, and in addition, can directly introduce the wort as the solvent when dissolving the yeast, is convenient operation, and avoids introducing the new solvent, guarantees the product quality.

A fermentation process for the extraction of cannabis-based plant compounds is described. According to the method, wine or beer yeast is used for fermenting large fried dough twists to obtain the cannabis sativa vinasse marinade rich in cannabis sativa-based plant compounds.

The invention relates to a novel amino acid foliar fertilizer and a preparation method thereof, and belongs to the technical field of agricultural fertilizers. The method aims at solving the technical problems that in the prior art, the amino acid conversion rate is low, product stability is poor, and severe conditions such as strong acid and strong alkali are possibly used. The method comprises the following steps: mixing soybean meal, fish meal and saccharomyces cerevisiae thalli to form a compound protein raw material, performing two-stage crushing and degreasing, performing step-by-step enzymolysis by adopting a compound enzyme preparation compounded by alkaline protease and flavourzyme, performing enzyme deactivation, and performing ultrafiltration by adopting a ceramic membrane to obtain purified amino acid hydrolysate, and mixing the hydrolysate with a composite trace element mixed solution formed by EDTA-Fe, EDTA-Zn, boric acid, ammonium molybdate and citric acid, adding humic acid, a seaweed extract and an organic silicon penetrant, and carrying out high-speed shearing, filtering and vacuum degassing to finally obtain the product. The method is mainly used for producing the amino acid foliar fertilizer which is high in free amino acid content, good in stability and easy to absorb by plants.

The invention relates to a powdery postbiotic intestinal conditioner for dogs and cats and a preparation method thereof. The powdery postbiotic intestinal conditioner comprises the following components: 20-30% of a postbiotic saccharomyces cerevisiae culture, 10-30% of fructo-oligosaccharide, 5-10% of elm bark powder, 30-40% of chicken powder and 5-15% of beer yeast powder. The preparation method comprises the following steps: carrying out vacuum low-temperature drying on the metagen saccharomyces cerevisiae culture, crushing into fine powder, and sieving; carrying out spray drying on the fructo-oligosaccharide to obtain powdery fructo-oligosaccharide with good fluidity; crushing the elm barks at low temperature, and sieving to obtain fine powder of the elm barks; performing high-temperature steaming on chicken, performing extrusion degreasing, performing low-temperature crushing, performing sieving, and performing hot-air drying on powder to obtain powdery uniform particles; carrying out vacuum drying on the beer yeast powder, and screening to obtain powdery yeast nutrition powder; the components are added into a double-shaft mixer to obtain the homogenized powdery postbiotic intestinal conditioner for dogs and cats. Various intestinal function raw materials are scientifically proportioned, and beneficial substances, dietary fibers and natural mucus protection components have a synergistic effect.

The utility model discloses a blending device for beer brewing, which comprises a blending tank and a filter screen mounting mechanism, and the upper end of the blending tank is rotatably connected with a top cover; the filter screen mounting mechanism comprises a second electric push rod, a mounting seat, mounting grooves and fixing pins, the second electric push rod is fixedly connected to the upper side of the interior of the blending tank, the mounting seat is fixedly connected to the lower side of the telescopic end of the second electric push rod, the mounting grooves which are symmetrically distributed are formed in the front side and the rear side of the upper surface of the mounting seat, and an adjustable filter screen is arranged in the mounting seat. According to the beer brewing and blending device, through the filter screen mounting mechanism, the filter screen can be lifted to the upper side of the beer brewing and blending device after filtering, so that filter residues such as beer yeast and insoluble substances on the filter screen can be conveniently cleaned; meanwhile, the filter screen can be taken out only by shifting the rotary pressing plate, so that the maintenance efficiency of the filter screen during maintenance and cleaning is greatly improved.

The invention relates to the technical field of beer brewing, and provides a brewing method of sugar-free and alcohol-free craft beer, which realizes complete metabolism of maltose (residual sugar is less than or equal to 0.5 g / L) and alcohol control (less than or equal to 0.5% vol) by breeding non-saccharomyces cerevisiae strains and optimizing step saccharification, low-temperature pressurized fermentation and membrane filtration termination processes. Meanwhile, typical flavor substances of craft beer are reserved. The method does not need chemical additives and conforms to the healthy consumption trend, and the sensory quality of the product is remarkably superior to that of existing alcohol-free beer. Alcohol-free beer yeast strains are adopted for fermentation, fermentation is terminated in combination with a physical method, the alcohol content can be effectively controlled, and no alcohol is achieved; and meanwhile, no carbohydrate is added in the fermentation process, and the sugar of the malt is utilized for fermentation, so that the sugar-free effect is finally realized. According to the sugar-free and alcohol-free craft beer brewed by the method disclosed by the invention, the rich flavor and taste of the craft beer are reserved to the greatest extent, and the requirements of consumers on healthy drinks are met.

A culture medium and method for the optimal production of paramecia has been invented, using as ingredients ground cooked wheat, brewer's yeast (Saccharomyces cerevisiae) and a vehicle, preferably boiled or dechlorinated water; through the culture medium and use of the method of the present invention, the development of paramecia is promoted with an optimal yield in terms of paramecium population with values ​​between 10,000 and 40,000 cells / mL; reproducible results and an axenic culture of paramecia are obtained; and readily available inputs and ingredients are used for its preparation.

This invention discloses a strain of *Botrytis cinerea* BA0616 and its application in low-purine foods, relating to the field of microbial technology. The *Botrytis cinerea* BA0616 strain of this invention has the accession number GDMCC NO: 65287. This *Botrytis cinerea* strain can use purines as a carbon source and has a strong metabolic capacity for purines, making it suitable for fermentation in low-purine foods. Applying *Botrytis cinerea* to beer production, without reducing the amount of barley malt used or adding adsorbents, strong acids, strong alkalis, or exogenous additives such as enzymes, the resulting low-purine beer, co-fermented with brewer's yeast, has rich foam and a delicate taste. The final purine content of the beer is only 8-15 mg / L, only 1 / 5-1 / 10 of that of ordinary beer, making it healthier to drink.

The invention discloses a blue crab feed, which comprises the following raw materials: fish meal, shrimp shell meal, chicken meal, soybean meal, brewer's yeast, squid paste, enzymatic fish slurry, high-gluten flour, cassava starch, imported fish oil, soybean lecithin, calcium dihydrogen phosphate, composite multivitamin, composite mineral salt, brewer's yeast hydrolyzate, sodium humate and lignin sulfonate. The blue crab feed meets the nutritional needs of blue crabs, can ensure the improvement of growth speed and self-immunity in the process of blue crab breeding, and ensure the survival rate of blue crabs.

FIELD: veterinary medicine and dietetics.SUBSTANCE: development of complete feed compositions that can provide a therapeutic effect in cases of exocrine pancreatic insufficiency. The composition of a complete dietary feed for cats with exocrine pancreatic insufficiency has been developed in the following ratio, wt.%: grain part: mixture of rice, wheat, hulled barley and corn – 37.0; protein part of plant origin: isolated soy protein, beet pulp, wheat bran, flax seeds – 22.0; protein part of animal origin: feather meal, chicken liver, egg powder – 25.0; mineral supplement: feed chalk, monocalcium phosphate, table salt, plantain seeds Plantago psyllium, mannanoligasaccharides with beta-glucans and lutein – 2.0; vitamin premix: A, D3, E, K, B1, B2, B3, B5, B6, B12, Bc, H, taurine, inulin, beech lignocellulose, complex of natural fulvic and humic acids – 2.5; flavor enhancer in the form of enzymatic hydrolysate of pork and chicken by-products – 3–3.5; brewer's yeast – 2.5–3.0; a mixture of fish and chicken fat – 5.0–6.0.EFFECT: obtaining food for cats with exocrine pancreatic insufficiency, which is easily reproducible, clinically effective, and convenient in dosing and use.1 cl, 3 tbl, 1 ex

The invention provides a pig feed based on rhus chinensis branch and leaf powder and a preparation method thereof. The pig feed based on the rhus chinensis branch and leaf powder comprises the following components in percentage by weight: 19%-21% of corn, 18%-20% of soybean meal, 5%-9% of brown rice, 6.48% of rice bran, 5%-15% of soybean meal, 5%-8% of the rhus chinensis branch and leaf powder, 3% of wheat flour, 5.15% of beet pulp, 3.6% of beer yeast, 2%-3% of puffed soybeans, 2%-3% of puffed flaxseeds, 1.5% of calcium hydrophosphate, 0.5% of soybean oil, 1.2%-1.5% of peach gum polysaccharide, 0.2% of sodium bicarbonate and 0.67% of zeolite powder. 0.54% of table salt and 2-3% of premix; wherein the rhus chinensis branch and leaf powder is crushed after being subjected to steam explosion pretreatment at the temperature of 95-105 DEG C. Through staged differential addition of rhus chinensis, the production performance and health indexes of pigs in all growth stages are remarkably improved, process parameters are controllable, and the method is suitable for industrial production.

The invention relates to the technical field of pet food, in particular to an eye-benefiting and liver-protecting fermentation type canine nutrient and a preparation method thereof, and the eye-benefiting and liver-protecting fermentation type canine nutrient comprises the following components: a liver-protecting component, an eye-benefiting component, a chitosan-calcium compound solution, beer yeast powder, honey, lactobacillus plantarum freeze-dried powder and bacillus subtilis freeze-dried powder. Porous starch of the liver protection component carries and protects N-acetylcysteine, and carnosine and quercetin modified by zein remove fermentation byproducts. The eye benefiting component is loaded and protected by octenyl succinic acid modified starch, and the dispersity and the stability of the xanthophyll are improved by grafting a hydrophobic cavity of sulfobutyl-beta-cyclodextrin. The laccase fixed on the surface of the porous starch catalytically oxidizes phenolic hydroxyl groups in a tannic acid-gelatin network on the surface of the eye benefiting component by using dissolved oxygen, a protective shell is formed by in-situ crosslinking and curing, and a chitosan-calcium compound solution closes the physical distance between the laccase and the tannic acid-gelatin network, so that the enzymatic oxidation reaction rate is increased.

The invention relates to the technical field of beer preparation, and particularly discloses low-purine beer and a preparation method thereof. The preparation method of the low-purine beer comprises the following steps: crushing malt, sieving, adding water, uniformly mixing, heating, saccharifying, filtering, and washing grain to obtain first wort and grain; boiling the first wort, adding humulus lupulus before boiling, cooling, carrying out rotary precipitation, and filtering to obtain second wort; beer yeast is added into the second wort for fermentation, and beer fermentation liquor is obtained; an adsorbent is added into the beer fermentation liquor for adsorption, centrifugation and sterilization are performed after filtration, the beer is obtained, the adsorbent comprises modified spent grains, and raw materials of the modified spent grains comprise the spent grains in the step S1, citric acid and zinc salt. The low-purine beer provided by the invention has a low-content purine value, is healthier, and also has mellow taste flavor and foam performance.

The invention discloses a composite mildew preventive for feed and a preparation method of the composite mildew preventive, and belongs to the technical field of preparation of composite mildew preventive. Comprising the following steps: carrying out centrifugal separation on beer yeast paste to remove impurities so as to obtain solid yeast, carrying out ultrasonic oscillation and two-stage enzymolysis on the solid yeast, carrying out vacuum drying so as to obtain a yeast extract, and pretreating the yeast extract so as to obtain an alkaline yeast extract solution; the preparation method comprises the following steps: mixing an alkaline yeast extract solution and sodium bromoacetate, stirring and reacting to obtain a modified yeast extract solution, adjusting the pH value of the modified yeast extract solution, filtering to obtain a modified yeast extract, mixing the modified yeast extract, cinnamyl aldehyde, ammonium propionate and montmorillonite K10, and crushing to obtain the composite mildew preventive for feed. By synergistically reducing the number of mould and the content of mycotoxin in the feed, the effect of the composite mildew preventive for the feed is improved.

The invention discloses a beer yeast preservation method based on big data. The positions of the gathered beer yeasts are obtained through clustering, and a corresponding first yeast clustering circle and a corresponding second yeast clustering circle are obtained through a first clustering radius and a second clustering radius which are different. According to the clustering characteristics, the density of the beer yeast in the second yeast clustering circle is larger than that of the beer yeast in the first yeast clustering circle. And the relationship between the beer yeast and the aggregated group is judged by concentric circles through a breed conservation judgment network, so that the breed conservation condition of the beer yeast can be integrally judged. Therefore, the change condition of the clustered beer yeast can be more accurately judged at multiple time points. And finding the preservation mode with the maximum breed conservation degree value as the beer yeast preservation method according to a plurality of breed conservation degree values correspondingly obtained by the beer yeast image sets of the plurality of preservation modes.

The invention belongs to the technical field of fermentation tank sampling, and particularly relates to a beer yeast fermentation tank convenient for rapid sampling, which comprises a fermentation part, a control mechanism, an adjusting mechanism and an extraction mechanism, the fermentation part comprises a storage tank, a closed end cover and a bearing plate, the closed end cover is detachably mounted at the upper end of the storage tank, and the bearing plate is fixedly mounted on the upper end surface of the closed end cover; the adjusting mechanism is used for adjusting the air pressure of the inner cavity of the closed storage tank; the control mechanism comprises a mounting frame, a winding roller and a sealing cover, the sealing cover is detachably mounted on the upper end face of the bearing plate, the mounting frame is located in an inner cavity of the sealing cover and fixedly connected with the upper end face of the bearing plate, and the winding roller is rotationally arranged on the side wall of the mounting frame; the extraction mechanism comprises an extraction pipe and a counterweight cover; through cooperation of the structures, sampling representativeness can be effectively improved, the fermentation quality can be improved conveniently according to the accuracy of later detection, and meanwhile, sampling can be conducted at different depths of materials by controlling the unwinding length of the extraction pipe.

The invention discloses a beer yeast debitterizing method and a debitterizing tank, and belongs to the technical field of beer yeast debitterizing. According to the technical scheme, beer yeast paste and alkali liquor with the mass concentration of 0.20%-0.30% enter a tank body of the debitterizing tank from a feeding port in the bottom of the debitterizing tank, are evenly stirred at the bottom of the tank body, are dispersed through a punching mesh and are output through a discharging port in the top of the debitterizing tank; and the retention time of the material from the punched mesh to the top discharge port of the debitterizing tank is 25-35 minutes. The method is applied to beer yeast debitterizing, solves the technical problem that the existing beer yeast alkali liquor debitterizing process cannot ensure that the yeast loss is less than or equal to 9% under the condition that the debitterizing rate is more than or equal to 90%, and has the characteristics of high debitterizing rate and low yeast loss.

The invention discloses a high-temperature-resistant milk-flavored essence fermentation composition and a preparation method thereof in the field of food biology. The high-temperature-resistant milk-flavored essence fermentation composition is prepared from the following raw materials: a milk grape graft, fresh peptide nucleotide, fermented whey liquid, a yeast extract, xylooligosaccharide, ascorbyl palmitate and a compound fermentation bacterium agent. Wherein the milk grape graft is prepared by fermenting a lactitol solution with geobacillus stearothermophilus and grafting beer yeast cell wall extract with alpha-1, 6-glucosidic bonds; the fresh peptide nucleotide is a small peptide-nucleotide compound formed by hydrolyzing concentrated whey protein through compound protease and fermenting hot spring streptomyces and lactobacillus plantarum; the fermented whey liquid is prepared through cow milk centrifugation, sterilization and three-strain gradient fermentation. The preparation method comprises the following steps: mixing the raw materials and mixing the compound fermentation inoculants under the protection of nitrogen. Through cooperation of the bifunctional modified compound and multiple strains, high temperature resistance, natural multi-flavor level and long-term stability are achieved, and the high-temperature-resistant milk powder is suitable for high-temperature processing scenes such as baking and sterilized milk.