541 results about "Selenium enriched yeast" patented technology

The invention relates to a selenium-enriched yeast hydrolysate and a production method thereof. The selenium-enriched yeast hydrolysate product of the invention is obtained from the production technology of the invention, wherein every 1 kg of selenium-enriched yeast hydrolysate product contains 500-5000 mg of selenium. The production technology of the selenium-enriched yeast hydrolysate of the invention comprises the following steps of: (1) culturing beer yeast strains in a culture medium consisting of molasses, sulphuric acid, calcined soda, ammonium salt, phosphate, carbamide and sodium selenite raw materials; (2) centrifugal separating yeast culture solution, and obtaining selenium-enriched yeast cell; (3) adopting an autolysis method and an enzymatic method to break the wall of the selenium-enriched yeast cell; and (4) drying selenium-enriched yeast hydrolysate after wall breakage, and obtaining the selenium-enriched yeast hydrolysate product. The selenium-enriched yeast hydrolysate product produced by the invention can be applied on the feed field.

The invention relates to a lLitopenaeus vannamei compound feed and belongs to the field of shrimp feed and preparation methods thereof. According to weight percentage, the compound feed contains 10-15percent of fish meal, 18-22 percent of fermented soybean meal, 8-12 percent of peanut cake, 2-6 percent of corn protein powder, 8-10 percent of soya bean meal, 20-25 percent of high gluten flour, 2-6percent of shrimp shell powder, 1-3 percent of selenium-enriched yeast, 1-3 percent of bentonite, 2-4 percent of squid extract, 2-4 percent of kelp powder, 0.5-1.5 percent of monocalcium phosphate, 0.5-1.5 percent of fish oil and 2-4 percent of premix. The compound feed can substitute for the present prawn compound feed and be used for the artificial breeding of litopenaeus vannamei. The compoundfeed is good in palatability, easy to digest and absorb and nice in the stability in water, reduces feed coefficient and cost, nitrogen and phosphorus emission and pollution to the water body environment of culture zones, and can promote the growth of prawn, with balanced nutrition.

The invention discloses a method for extracting selenium-containing protein from selenium-enriched yeast, which is characterized by comprising the following steps: (1) choosing the selenium-enriched yeast as raw materials, using a sodium hydroxide or potassium hydroxide solution with potential of hydrogen (pH) of 11 to 14 to dissolve the selenium-enriched yeast to obtain mixed liquid A; (2) placing the mixed liquid in a vibration machine of 250 r / minute at the temperature of 35 DEG C to be vibrated for 8 hours to 12 hours, and performing ultrasound on the mixed liquid for 30 minutes for twice in vibration processes; and (3) arranging the mixed liquid in a centrifugal machine of 4,000 to 20,000 r / min for 30 minutes after vibration is finished to extract supernatant, and adjusting pH of the supernatant to 7 to obtain a selenium-containing protein solution. The method improves wall broken rate and protein dissolving rate of yeast cells, extraction rate of selenium in the selenium-enriched protein solution is more than 70% when the selenium-enriched solution is not filtered and purified, and selenium-containing protein with organic selenium content more than 95 % can be obtained after the selenium-enriched solution is filtered and purified.

The invention relates to protein allergy-resisting and nutritious infant formula milk powder. The milk powder is prepared from the following raw materials in part by ton weight: 1,000 parts of fresh milk (115 parts of dried substance), 500 parts of demineralized whey powder, 235 parts of refined vegetable oil, 45 parts of lactose, 50 parts of whey small peptide with the molecular weight of less than 10,000 daltons, 20 parts of fructooligosaccharide, 6 parts of arachidonic acid (ARA), 5 parts of docosahexaenoic acid (DHA), 0.42 part of nucleotide, 0.45 part of taurine, 0.42 part of choline, 0.06 part of L-carnitine, 0.012 part of beta-carotene, 2.5 parts of complex vitamin, 3.5 parts of amino acid common trace element chelate and 1.5 parts of selenium-enriched yeast powder. The formula milk powder has the advantages that: the formula milk powder contains the whey small peptide with the molecular weight of less than 10,000 daltons, has the effects of regulating immunity and resisting protein allergy, has the characteristics of high water solubility, high absorptivity, no stimulus on stomach and intestine and the like, and can meet the requirements of human bodies on the supplement of trace elements and amino acid.

The present invention relates to one kind of selenium-rich Saccharomyces cerevisiae, selenium-rich Saccharomyces cerevisiae product and their production process. Of the selenium-rich Saccharomyces cerevisiae product, each kilogram contains selenium in 4000-8000 mg, and organoselenium accounts for 90-99 wt% of the total selenium content. The process of producing selenium-rich Saccharomyces cerevisiae product includes the following steps: 1. fermenting the selenium-rich Saccharomyces cerevisiae of the present invention in culture medium containing selenium in 10-300 mcg / ml at 26-35 deg.c; and 2. drying the fermented Saccharomyces cerevisiae liquid to obtain the selenium-rich Saccharomyces cerevisiae product. The selenium-rich Saccharomyces cerevisiae product is safe and non-toxic, and may be used in medicine, food, feed and other fields.

The invention provides a composition containing organic selenium and yeast glucan, which comprises the following components by percentage: 0.05 to 30 percent of selenium rich yeasts, 1 to 90 percent of yeast glucan, 0.5 to 60 percent of vitamin C and 0.5 to 40 percent of vitamin E. The composition of the invention has anti-oxidation, anti-aging, cancer-prevention and immune-enhancing effects.

The invention provides an antibiotic-free mixed feedstuff and a preparation method thereof. The invention belongs to the field of animal feedstuffs. According to the invention, a mixed feedstuff containing Chinese herbal medicines is mixed with a mixed fermentation material containing various probiotics according to a certain proportion, such that the feedstuff provided by the invention is obtained. The mixed feedstuff containing Chinese herbal medicines comprises half-dried ginkgo leaves or ginkgo leaf extraction residues, Japanese honeysuckle stems, balloon flower root, soybean meal, peanutmeal, corn powder, wheat flour, calcium hydrogen phosphate, common salt, composite microelement, mulvital, and selenium-enriched yeast. The mixed fermentation material containing various probiotics comprises an enterococcus faecalis fermentation material, a bacillus licheniformis fermentation material, a saacharomyces cereisiae fermentation material, a Trichoderma reesei fermentation material, and an aspergillus niger fermentation material, which are mixed according to a certain proportion. Microbe strains are processed through targeted acclimatization, and are cultivated by using a solid fermentation medium, such that the mixed fermentation material is obtained. The antibiotic-free mixed feedstuff provided by the invention assists in promoting growth, and brings no toxic or side-effect. The feedstuff causes no antibiotic residue, no pollution, and no drug resistance. With the mixed fermentation the utilization rate of the feedstuff can be improved, healthy growth of live stocks can be promoted, and meat qualities of the live stocks can be improved.

The invention relates to a multi-nutrient compound yeast powder and application thereof, in particular to the multi-nutrient compound yeast powder adopting the high-protein yeast, selenium-rich yeast, iron-rich yeast, zinc-rich yeast, chrome-rich yeast and other accessories which are properly combined and also to the application of the compound yeast powder to the food and health-care foods. The invention adopts the safer yeast powder with micro-element and the high-protein yeast to provide more balanced nutrients so as to balance the nutrition of body and enhance the malnutrition.

The invention relates to a special selenium-rich liquid fertilizer for moso bamboo shoots and a preparation method of the fertilizer. The liquid fertilizer comprises an organic and inorganic mixed selenium source prepared from potassium nitrate, potassium dihydrogen phosphate, dipotassium hydrogen phosphate, boric acid, EDTAZnNa2, EDTAMnNa2, NaFeEDTA, sodium silicate, ammonium molybdate, 5-nitroguaiacol sodium salt, sodium dodecyl benzene sulfonate, sodium benzoate and a selenium-rich yeast, wherein the organic and inorganic mixed selenium source is formed by preparing the selenium-rich yeast into a seed and then carrying out fermentation enrichment culture, inactivation and decomposition in an inorganic selenium containing culture medium. The preparation method comprises the following steps of dissolving effective components according to a certain sequence; regulating a pH value; and treating until constant volume is achieved. The special selenium-rich liquid fertilizer for the moso bamboo shoots, which is disclosed by the invention, has the advantages of comprehensive nutrient element, reasonable and safe formula, high fertilizer utilization ratio, no environmental pollution and the like, is convenient to fertilize, improves the utilization efficiency of a selenium element and increases the selenium content of bamboo shoots by using an organic selenium source and ensures the safety in fertilizer use and selenium-rich moso bamboo shoot eating.

The invention discloses a selenium-enriched Chinese herbal medicine fermented pork pig feed. The selenium-enriched Chinese herbal medicine fermented pork pig feed comprises the following raw materials in parts by weight: 60-70 parts of corn, 10-20 parts of wheat bran, 20-30 parts of soybean meal, 20-30 parts of selenium-enriched corn straw crushed materials, 20-30 parts of selenium-enriched rice straw crushed materials, 15-25 parts of selenium-enriched fly maggot, 3-7 parts of brown sugar, 3-5 parts of medical stone powder, 3-5 parts of garlic, 3-5 parts of Chinese yam, 3-5 parts of common andrographis herb, 3-5 parts of licorice root, 3-5 parts of Chinese thorowax root, 0.01-0.02 part of sodium selenite, 0.5-2 parts of table salt and 0.5-1 part of selenium-enriched yeast. The pork pig feed prepared by fermentation, disclosed by the invention, is rich in nutrition; traditional Chinese medicines can be used as nutrient substances, and also can be used for preventing and treating diseases; trace elements can enhance the resistance of pork pigs; a variety of essential amino acids and a great quantity of organic selenium produced by fermentation are beneficial for the growth and development of the pork pigs, and pork is rich in organic selenium.

The invention discloses a selenium-rich yeast (Saccharomyces cerevisiae) GABC 103 strain which is submitted to be preserved in the China Center for Type Culture Collection, and the serial number is CCTCC M 2011474. The invention also discloses a method for obtaining selenium-rich yeast hydrolysate by utilizing the selenium-rich yeast through fermentation and enzymolysis. The method is simple to operate and low in cost; the organic selenium of per kg of selenium-rich yeast hydrolysate is 1,000-4,000mg and accounts for 92-99% of the total weight of selenium, the content of alpha-amino nitrogen is 2.0-3.0 wt%, so that the selenium-rich yeast and the selenium-rich yeast hydrolysate can be digested and absorbed by animals easily, under the condition of equal volume of addition, the production efficiency is remarkably superior to that of similar products, or the volume of addition can be reduced under the condition of the same production efficiency, and further, the cost is reduced.

The invention belongs to the technical field of food and relates to health vinegar, a health vinegar beverage rich in lactic acid bacteria and a preparation method thereof. The health vinegar beverage is prepared according to the following steps: by taking black rice as a main material, pasting, saccharifying, mixing yeast, performing alcoholic fermentation, performing acetic fermentation, smoking and fermenting, pouring vinegar, and the like. In the brewing process, lactic acid bacteria, selenium-enriched yeast and acetic bacteria are used for cooperatively fermenting, so that the lactic acid content in the product is promoted and the product flavor and taste are improved. The selenium-enriched yeast can increase the organic selenium content in the product, can promote anti-oxidation effect and can enhance the immunity of the organism and the function of preventing tumor. Active lactic acid bacteria are added and mixed into the vinegar beverage in the later period, so that the vinegar beverage can synergically exert the anti-oxidation effect and can adjust the enteric microbial flora balance. In the product, the taste of the vinegar and the vinegar beverage can be improved, the category and content of functional components are increased, the healthcare effect is well exerted and the market requirement is met.

The invention relates to a calcium-iron-zinc-selenium multivitamin chewable tablet and a preparation method thereof. The calcium-iron-zinc-selenium multivitamin chewable tablet takes vitamin A, acetic ester, vitamin B1, vitamin B2, vitamin B6, vitamin C, vitamin D3, folic acid, calcium carbonate, ferrous lactate, zinc lactate and selenium-enriched yeast as main raw materials, and lemon yellow, glucose, maltodextrin and magnesium stearate as auxiliary materials. The calcium-iron-zinc-selenium multivitamin chewable tablet has the advantages of multiple nutritional components, stable property, easiness in storage, convenience in carrying and taking, and safety.

The invention relates to a dairy cattle feed additive containing selenium-enriched yeast, iron-enriched yeast and zinc-enriched yeast. The dairy cattle feed additive comprises selenium-enriched yeast powder, iron-enriched yeast powder, zinc-enriched yeast powder, mycotoxin adsorbent, compound vitamin, compound probiotics and a biological antioxidant. The dairy cattle feed additive is reasonable in formula, contains various organic microelements and probiotics and is balanced in nutrition, antibiotics are not added, the number of somatic cells in milk can be effectively reduced, the occurring rate of recessive mastitis of dairy cattle is reduced, a good developmental mechanism of a mammary gland system is maintained, milk yield and milk quality are improved, white muscle disease of the dairy cattle can be prevented, the requirements of vast farmers at present can be met, and the dairy cattle feed additive is suitable for development of green healthy cultivation and production of pollution-free ruminant products.

The present invention discloses a fermented selenium-rich plant feed additive resistant to pig heat stress and a preparation method of the feed additive comprises the following three steps: (1) preparation of selenium-rich yeast culture medium; (2) preparation of traditional Chinese medicine fermentation culture medium; and (3) traditional Chinese medicine fermentation. The plant feed additive is characterized in that: the traditional Chinese medicine fermentation culture medium obtained in the step 2 includes (2.1) preparation of Chinese herbal medicine probiotics and (2.2) inoculation steps. The designed fermented selenium-rich plant feed additive is a pig heat stress resistant novel feed additive which is green and safe, contains traditional Chinese medicines, and combines organic selenium. The feed additive fully integrates the physiological characteristics of heat-stressed pigs, uses anti-oxidative stress as main features, can significantly improve the pig weight gain and feed-weight ratio in a high-temperature environment, and enhance pig anti-oxidation resistance and immune function after being fed, effectively plays the roles of pig stress resistance, and has non-toxic or side effects and no harmful substance residues after a long-term use.

A method for producing selenium-enriched distiller's koji and selenium-enriched wine, characterized in that wheat (or barley) is first converted into selenium-enriched malt, and then the selenium-enriched malt is used as a raw material to produce selenium-enriched malt koji, or in the process of brewing, Selenium-enriched wine is produced by replacing some grains with selenium-enriched malt as raw materials for winemaking. This invention utilizes the three-stage bio-selenium-enriched conversion technology of wheat germination, distiller's yeast fermentation, and wine-making fermentation, which can more thoroughly transform inorganic selenium into organic selenium, thereby producing high-quality selenium-enriched wine.

The invention discloses beef cattle fattening feed with a high energy utilization ratio and a preparation method of the beef cattle fattening feed. The beef cattle fattening feed comprises the following raw materials in parts by weight: 400-500 parts of corn bran, 300-400 parts of soya bean meal, 100-200 parts of cottonseed meal, 200-300 parts of peanut meal, 100-150 parts of millet bran, 50-80 parts of chicken manure, 30-50 parts of selenium-enriched yeast liquid, 200-250 parts of corn meal, 100-150 parts of sorghum rice, 80-100 parts of brown rice, 100-120 parts of wheat bran, 3-5 parts of schisandra chinensis, 2-3 parts of radix pseudostellariae, 5-6 parts of polygonatum odoratum, 2-3 parts of fructus rosae laevigatae, 5-6 parts of poria cocos powder, 4-7 parts of citrus powder, 50-60 parts of silkworm chrysalis, 8-10 parts of green pepper, 10-20 parts of sandworm, 10-15 parts of bamboo shoot, 5-8 parts of oil, 20-30 parts of pumpkin flower, 50-70 parts of watermelon peel, 10-20 parts of apple seed, 3-4 parts of calcined gypsum, 60-80 parts of green hay, 20-30 parts of phagostimulant and an appropriate amount of water. The feed increases economic benefits of beef cattle cultivation.

The invention relates to a health product, in particular to a soft capsule and a method for producing the same. The soft capsule is characterized in that: the soft capsule contains water soluble pearl powder, selenium-enriched yeast, natural vitamin E, beeswax, glycerol monostearate, span-80 and corn oil. The soft capsule is a powerful antioxidant which can effectively improve the rancidity of fatty acid in food and the alimentary tract, and protect cells from being damaged by harmful matters generated by oxidation of unsaturated fatty acid; the soft capsule is an extremely good free radical scavenger which can protect biological membranes from being attacked by free radicals, effectively resist ageing nutrients, improve immunity of a human body, keep the integrity of red blood cells and promote the biological synthesis of the red blood cells; the soft capsule is an indispensible promoting factor for cellular respiration, which can protect the lung tissue from air pollution; moreover, the soft capsule also can prevent the over-aggregation of blood platelets, avoid the increase of lipid peroxidation in the blood, prevent cardiovascular diseases and supplementing calcium element in the human body.

The invention relates to a compound feed composition for goats. The compound feed composition is characterized in that a compound feed for lactating ewes by using corn straw as main forage grass consists of the following compounds in parts by weight: 10 parts of corns, 5 parts of bran, 7.5 parts of flax cake, 5 parts of sunflower seed meal, 2 parts of bone meal, 1.5 parts of table salt, 0.5 part of selenium-enriched yeast, 5 parts of carrot, 2 parts of purple sweet potato anthocyanin, 2 parts of rape seed cakes, 0,5 part of lysine, 2 parts of scaphium scaphigerum, 2 parts of green tea, 2 parts of artemisia capillaries, 1.5 parts of fish skin, 2 parts of dry purple sweet potato seedlings, 2 parts of liquorice, 2 parts of vinasse, 2 parts of peanut shell powder, 1.5 parts of coffee beans, 2 parts of sorghum roots, 2 parts of Chinese chive seeds, 2 parts of lotus roots and 2 parts of peanut leaves. Each raw material in the compound feed composition does not contain substances harmful to health and growth, and the compound feed composition is wide in sources of raw materials, simple in preparation technology and low in cost, the appetite of the goats can be promoted, the survival rate and growth speed of the goats are increased, and the immunity of the goats is strengthened.

The invention provides a traditional Chinese medicine composition containing grifola frondosus extract and a preparation method thereof. The traditional Chinese medicine composition can prevent tumor metastasis and enhance the immunity. The composition is composed of the following components in parts by weight: 120 to 130 parts of grifola frondosus extract, and 0.8 to 1.2 parts of selenium enriched yeast. According to the preparation method of antitumor composition, the grifola frondosus extract is prepared through an ultrasonic extraction and microwave drying technology; the selenium enriched yeast is obtained by adding selenium during the culture process, the inorganic selenium is converted into organic selenium, the yeast is separated through a centrifugal method, and then the yeast is washed by water repeatedly, concentrated and spray-dried so as to obtain light yellow selenium enriched yeast powder. The research results show that the antitumor composition can inhibit the generation of breast cancer cells and blood vessels and invasion of breast cancer cells, and enhance the immunity.

The invention discloses a breeding and production method of selenium-enriched yeast with high biomass. Through screening and domestication on a culture medium containing inorganic selenium, a strain of Saccharomyces cerevisiae subspecies Saccharomyces boulardii YBN-2 with high biomass and high content of selenium. Under optimal fermentation conditions, each gram of selenium-enriched yeast enriches as high as 2800-3200 mug / g of organic selenium, has viable count reaching 6.5-8.0*10<10> CFU / g. The selenium-enriched yeast provided by the invention has the advanategs of safety, no toxicity, simple production conditions, low cost and high economic value.

The invention provides a chicken feed additive for producing selenium-rich eggs. The chicken feed additive is characterized by being formed by mixing the following components in percentage by mass: 0.1-0.2 percent of methionine, 0.02-0.05 percent of vitamin E, 0.1-0.3 percent of vitamin C, 1-2 percent of choline, 1-2 percent of menotropins, 1-2 percent of betaine, 50-55 percent of Chinese herbal medicines, 0.2-0.5 percent of bacillus subtilis, 30-35 percent of tea dregs, 0.2-0.5 percent of selenium-enriched yeast and 5-10 percent of zeolite powder, wherein the Chinese herbal medicines are prepared by mixing pericarpium citri reticulatae, hawthorns and chilli according to a mass ratio of 1 to 1 to 1. According to the chicken feed additive for producing the selenium-rich eggs, the quality of the eggs can be obviously improved, and the production cost is lowered; meanwhile, the oxidization resistance, the stress resistance and the organ immunity of laying hens are improved; the chicken feed with the chicken feed additive can safely, stably and reliably produce the selenium-rich eggs.

The invention provides a mixed biological organic selenium fertilizer, a preparation method, and applications thereof. The fertilizer comprises the following elements in percentage by weight: 2.0 to 3.0% of Se, not less than 2.0% of N, not less than 3.0% of P, not less than 2.0% of K, and not less than 0.5% of B. The preparation method comprises the following steps: screening bacterium strains, preparing selenium-enriched yeast, breaking the walls of the selenium-enriched yeast, and compounding the biological organic selenium fertilizer. The provided mixed biological organic selenium fertilizer can be applied to the production of selenium-enriched rice. The production and growth of paddy rice can be promoted, the output of rice can be increased by 5-10%; the selenium content of produced rice can reach 0.2 mg / kg or more, the national standards can be met, moreover, the selenium enriching effect is stable, the fertilizer can be applied to massive and standard production; and the selenium-enriched rice can increase the selenium intake amount for people.

The invention discloses a micro-ecological additive for preventing white muscle diseases of flocks and herds. Main components of the micro-ecological additive are following raw materials in parts by weight: each kilogram of the additive contains 6.5*10<10>-8.0*10<14>CFU of selenium-enriched saccharomycetes, 6.5*10<10>-8.9*10<14>CFU of lactic acid bacteria, 2.1*10<9>-4.5*10<14>CFU of bacillus, 50-150g of milk powder and 10-20g of trehalose. The feed additive provided by the invention is reasonable in formula and low in cost, does not contain antibiotics and contains high-activity probiotics and selenium yeast with high content; the micro-ecological additive is good for improving the micro-ecological balance of intestinal canals of the flocks and the herd and improving the immunity and the growth condition; more importantly, the organic selenium is supplemented so as to relieve the occurrence of the white muscle diseases of calves and lambs. The micro-ecological additive disclosed by the invention is suitable for being used for developing green and healthy cultivation and producing harmless animal by-products.

The invention relates to a method for preparing an organic selenium fertilizer through hydrolysis of selenium-enriched yeast. The method comprises the following steps: with selenium-enriched yeast as a raw material, allowing selenium-enriched yeast cells to undergone wall breaking and selenoprotein to undergone hydrolysis under acidic and thermal conditions so as to obtain selenoamino acid and oligopeptides thereof; carrying out cooling to room temperature; and adjusting the pH value of hydrolysate to allow the hydrolysate to be neutral, thereby obtaining the micromolecular organic selenium fertilizer. The method has the advantages of easiness, convenient operation and easy realization of industrial production. The prepared organic selenium fertilizer has the main components--selenoamino acid and oligopeptides thereof, has a small molecular weight and can be easily absorbed by plants. When the micromolecular organic selenium fertilizer is applied to crops, the contents of organic selenium in fruit and seeds are greatly increased, the outputs of the crops are increased, the added values of agricultural products are enhanced, and economic benefits of the crops are improved.

The invention relates to health care germ-retaining rice pear vinegar which is rich in organic selenium and has the characteristics of antioxidation, aging prevention and lipid-lowering function and a preparation method thereof. The vinegar that is rich in organic selenium is produced by adopting the steps of utilizing selenium-enriched germ-retaining rice and selenium-enriched pears as basic materials and respectively adopting a double-enzyme method and a semisolid fermentation method. In the invention, selenium-enriched rice, selenium-enriched pears and selenium-enriched yeast are mainly enriched and converted into organic selenium which is further transferred into vinegar beverage so that customers can replenish selenium as human essential microelement safely and effectively; in addition, the characteristics of the increase of active ingredients of germinated rice as well as the increase of vitamin, free amino acid, digestive ferment, oligopeptides, monose, and the like are utilized simultaneously; and the roles of removing and lightening fatigues, preventing arteriosclerosis as well as reducing blood pressure and conditioning intestines and stomach are played simultaneously.

The invention belongs to the technical field of active milk beverage preparation, and particularly relates to a production method of a probiotic active milk beverage rich in organic selenium. Sodium selenite is added in different stages, so that the best combining condition between yeast and selenium is optimized; the selenium combining quantity is increased; the growth of the growth is facilitated; inorganic selenium is combined into organic selenium; the yeast is separated by a sheet frame press filtration or centrifugal method; selenium-enriched yeast powder is obtained by drying and deactivation, and serves as a raw material for secondary fermentation via probiotics such as bifidobacterium bifidum, lactobacillus bulgaricus, lactobacillus acidophilus, thermophilic streptobacillus and bacillus cereus, and secondary conversion via microbial enzyme; and inorganic selenium left in a yeast cell is converted into selenium protein and seleniferous protein basically completely. Therefore, the probiotic functional food beverage rich in organic selenium is obtained. The product can exert comprehensive health-care effects of the probiotics, the yeast and organic selenium.

The invention provides children milk powder. The children milk powder comprises the following components in parts by weight: 4-8 parts of full cream goat milk powder, 30-38 parts of skimmed goat milk powder, 5-8 parts of concentration goat whey protein powder, 15-25 parts of lactose, 10-16 parts of vegetable oil, 1-4 parts of glucose syrup solids, 3-6 parts of crystalline fructose, 2-5 parts of fructo-oligosaccharide, 1-3 parts of galacto-oligosaccharide, 0.2-0.4 part of docosahexenoic acid, 0.02-0.05 part of arachidonic acid, 1-2 parts of a mineral premix, 0.2-0.4 part of a vitamin premix, 0.02-0.05 part of taurine, 0.0001-0.0003 part of xanthophyll, 0.03-0.05 part of selenium-enriched yeast powder, and 1.2-2.5 *10<8>cfu / g of active probiotics freeze-dried powder. The children milk powder disclosed by the invention has the effects of being rich in nutrition, and good in absorption effect, and has a positive promotion effect on the development of children. The invention further discloses a making method of the children milk powder. The making method comprises the steps of making semi-finished products and making finished products of the children milk powder, the process flows are simple, the technological parameters are easy to control, and the children milk powder is suitable for mass production.

The invention relates to a preparation method of a selenium-chelated collagen peptide with tuna bone collagen serving as a source. The preparation method includes: crushing tuna bones, subjecting the crushed tuna bones to pretreatment prior to enzymolysis and adding selenium-enriched yeast so as to obtain the selenium-chelated collagen peptide. The preparation method is short in preparation cycle, high in yield and product purity and capable of removing bitter fishy smell, provides technical assistance for development of selenium-supplementing health food and drugs and also provides a new thought for high-value application of the tuna bones, and the selenium-chelated collagen peptide is good in taste and beneficial to absorption of human bodies.

The invention discloses a selenium-enriched yeast and a preparation method thereof. The selenium-enriched yeast is obtained by cultivating microzyme in a selenium-enriched culture medium. The preparation method comprises the steps as follows: selenium ore is immersed in an acid liquid to dissolve element selenium; heavy metal is subjected to sedimentation treatment via a phosphoric acid slat solution, and filtration is performed; the pH value of a filtrate is regulated to 5.5-6.5; a carbon source and a nitrogen source which are necessary for the growth of the microzyme are added to obtain the selenium-enriched culture medium; the obtained selenium-enriched culture medium is sterilized; the microzyme is inoculated and cultivated; microzyme bodies are collected, frozen and dried in a vacuum condition to obtain selenium-enriched yeast. According to selenium-enriched yeast and the preparation method thereof, the selenium ore is adopted as a source of the selenium element so as to broaden the selenium source material for the selenium-enriched yeast, and improve the safety of the product.