684 results about "Whey protein" patented technology

The invention discloses a high-temperature-resistant astaxanthin microcapsule and a preparation method and application thereof, and relates to the field of nutritional products, the microcapsule comprises: a, a core material: astaxanthin oil selected from haematococcus pluvialis or krill oil; b, double-layer wall materials: an inner-layer wall material is formed by crosslinking sodium alginate and whey protein through an ionic gel method; the outer-layer wall material is formed by electrostatic adsorption of chitosan and Arabic gum; and c, an antioxidant synergist: a rosemary extract. A double-layer embedding structure is adopted outside astaxanthin oil, sodium alginate on the inner layer is combined with whey protein to form a compact network structure through ionic bonds, chitosan on the outer layer and Arabic gum form a compact composite film on the surface of a primary embedded microsphere through electrostatic attraction, so that the double-layer embedded microcapsule has the advantages that the astaxanthin oil has good stability, and the astaxanthin oil has good stability. The temperature resistance limit of a traditional single-layer microcapsule is broken through, the stability of the astaxanthin in a high-temperature baking environment is remarkably improved, the astaxanthin can stably exist in high-temperature baked food, and the anti-oxidation effect and the like of the astaxanthin are fully exerted.

The invention discloses preparation of a whey protein peptide mixture with immune and muscle-building effects, and relates to the technical field of food processing and bioengineering. The neutral protease is adopted and the pH is adjusted, so that the enzymolysis efficiency is effectively improved, and the enzymolysis time is greatly shortened; meanwhile, the whey protein peptide which is uniform in molecular weight distribution, free of peculiar smell and good in thermal stability is successfully prepared by accurately controlling enzymolysis conditions and combining microbial fermentation. The protein peptide can effectively improve thymus indexes and spleen indexes, enhance the proliferation capacity of splenic lymphocytes and the activity of NK cells, play an excellent immune regulation role and have a remarkable muscle building effect. The preparation process has the advantages of high efficiency, low cost, simplicity, convenience and the like, gives consideration to high quality and high functionality of the product, and has great application value.

The invention provides a hypoglycemic peptide which is prepared by taking bovine whey protein as a raw material and is stable in gastrointestinal digestion and absorption. In an in-vitro cell experiment, the peptide fragment can improve the uptake of insulin-resistant HepG2 hepatocytes and synthesize glycogen by using glucose, can promote intestinal endocrine cells NCI-H716 to secrete GLP-1, has a certain synergistic effect, and can further play the effects of promoting GLP-1 secretion and activating a GLP-1 receptor through combined use. An insulin resistance mouse model is constructed by utilizing high-fat diet, and the peptide fragment is adopted for intervention, so that the hypoglycemic peptide is further proved to have obvious effects on losing weight, reducing lipid accumulation and assisting in reducing blood fat, and meanwhile, the hypoglycemic peptide can be used for improving insulin resistance related symptoms. The milk peptide provided by the invention has gastrointestinal digestion stability and hypoglycemic activity, can be used as a functional milk base material for developing food, medicines or health care products with the effect of regulating blood sugar, and is wide in application prospect.

The invention provides bacillus subtilis KC-1 as well as a composition and application thereof, and belongs to the technical field of microorganisms. The preservation number of the bacillus subtilis KC-1 is CGMCC (China General Microbiological Culture Collection Center) No.35237. The bacillus subtilis KC-1 can secrete IAA, has nitrogen fixation capacity and can generate siderophores. The bacillus subtilis KC-1 and whey protein are used as a composition, and the bacillus subtilis KC-1 and the whey protein jointly act to prepare the seed treatment material, so that a synergistic effect can be achieved, and corn seed germination and seedling root development are remarkably promoted. Experiments show that compared with single use of the whey protein and the bacillus subtilis KC-1, the combined use of the whey protein and the bacillus subtilis KC-1 can significantly improve the seed germination rate, the length of buds on the overground part, the length of main roots on the underground part, the total root volume, the total root surface area, the total root length and the seedling auxin concentration, and also can significantly reduce the concentration of abscisic acid in seedlings, so that the survival rate of the seedlings is improved. The germination of seeds and the growth of seedlings under drought conditions are promoted, and the drought resistance of plants is improved.

The invention provides a whey protein deep hydrolysate with low sensitization and an allergy relieving effect as well as a preparation method and application of the whey protein deep hydrolysate. According to the method, the alkaline protease, the neutral protease and the glutamyltransferase are sequentially used for carrying out first enzymolysis, second enzymolysis and third enzymolysis on the whey protein raw material, and the whey protein hydrolysate which is low in molecular weight, good in taste, good in digestion and absorption performance, low in sensitization and capable of effectively relieving allergic reaction of the organism is obtained.

The invention discloses a panax quinquefolius probiotic beverage and a preparation method thereof, and relates to the technical field of functional foods. According to the beverage, the combination of the American ginseng extract and specific probiotics is taken as a core, the survival rate of thalli is increased by adopting a microcapsule embedding technology, and the product performance is optimized by adding a stabilizer and a flavor regulator. The formula comprises 5-15% of a panax quinquefolius extract, 3-8% of compound probiotic freeze-dried powder (lactobacillus plantarum, lactobacillus salivarius and bifidobacterium lactis), 10-25% of inulin, 5-15% of whey protein, 10-30% of a microcapsule wall material (sodium alginate / chitosan or a WPI-KGM compound), and auxiliary materials. According to the preparation method, the active ingredients are efficiently reserved through the processes of gradient extraction, microcapsule embedding, low-temperature drying and the like. The product has the functions of resisting fatigue, regulating intestinal flora and enhancing immunity, the survival rate of probiotics in simulated gastric juice reaches 85% or above, and the shelf life stability is improved by 40%.

The invention relates to the technical field of rapid quantitative and nondestructive detection of food, and particularly provides a rapid quantitative detection method for lactose content and crystal form proportion based on a near infrared spectrum technology, which comprises the following steps: preparing a lactose-whey protein mixture sample; scanning through an instrument to obtain near infrared spectrums of the samples prepared at different gradients; preprocessing the spectrum to remove noise information, establishing a least square support vector machine method model, and screening out optimal interval data of modeling; establishing a prediction model by applying a principal component analysis method; a correlation coefficient value (R2) and a predicted root-mean-square error (RMSEP) are used as key indexes of model robustness test, so that the lactose content and the crystal form proportion in the lactose-whey protein mixture can be rapidly and accurately predicted within a short time (several seconds) on the premise of not damaging a sample. The method has important reference value for regulating and controlling the structure function and application of the whey protein.

The invention relates to the technical field of biological preparations, and discloses an efficient body function repairing active small molecule peptide preparation and a preparation method thereof.The efficient body function repairing active small molecule peptide preparation is prepared from 15-22 parts of collagen peptide, 5-9 parts of glutathione, 10-18 parts of whey protein peptide, 5-8 parts of vitamin C, 2-4 parts of vitamin E, 1-3 parts of zinc element, 5-15 parts of astragalus membranaceus extract, 3-8 parts of probiotics and 10-20 parts of a delivery carrier. The molecular weight range of the original protein peptide, the glutathione and the whey protein peptide is 500 to 2000Da. According to the invention, collagen peptide, glutathione, whey protein peptide, vitamins and other components are proportioned to realize an anti-oxidation-repair-anti-inflammatory synergistic effect, and vitamin C, vitamin E, zinc element and an astragalus extract are added to cover multi-dimensional repair of an immune system, so that comprehensive body function repair is realized.

The invention discloses weight-reducing and blood-sugar-reducing meal replacement powder for increasing satiety and a preparation method thereof, and belongs to the technical field of meal replacement powder. Comprising resistant starch, bio-enzyme modified whey protein concentrate, bio-enzyme modified soybean protein isolate, bio-enzyme modified white kidney bean hydrolyzed protein, oat fiber powder, nano emulsion milk powder, mogroside, chitosan, inulin, konjac powder, pumpkin seed powder, a cactus extract, a griffonia simplicifolia seed extract and a Chinese waxgourd peel extract. Through the synergistic effect of multiple components and multiple processes, the obvious effects of satiety, weight loss and blood sugar reduction are achieved. 5-hydroxytryptophan in the griffonia seed extract can regulate satiety center and delay hunger sensation; dietary fibers such as the resistant starch and the inulin absorb water and swell in intestinal tracts to form high-viscosity gel, so that the satiety is further enhanced, and the eating frequency and the eating amount are reduced. A low-calorie and high-protein formula is combined with components such as tartronic acid in the Chinese waxgourd peel extract and the cactus extract, so that fat catabolism is accelerated, and fat synthesis is inhibited.

The invention provides a safflower pigment extraction method. The safflower pigment extraction method comprises the following steps: preparing a safflower decoction; adding whey protein into the safflower boiling liquid, and uniformly stirring; standing for layering, removing supernatant liquid, and then regulating and controlling the pH value of the mixed liquid; selective separation of carthamin yellow and haematochrome is realized through pH control; wherein yellow pigment mud is obtained under the alkaline condition, and red pigment mud is obtained under the acidic condition; the obtained yellow pigment mud and the obtained red pigment mud are subjected to vacuum drying and then ground, and the drying temperature is 30-40 DEG C. According to the safflower pigment extraction method provided by the invention, the selective separation of safflower yellow / red pigment is realized by regulating the pH value, and the limitation of single pigment extraction is broken through; and the weather resistance of the product is effectively improved through low-temperature grinding and a color fixing agent compounding and coating process. The invention further provides application of the safflower pigment.

The invention belongs to the technical field of biological food, and particularly relates to compound hydrolyzed whey protein powder capable of preventing sarcopenia and a preparation method. The invention discloses compound hydrolyzed whey protein powder capable of preventing sarcopenia. The compound hydrolyzed whey protein powder consists of hydrolyzed whey protein A, hydrolyzed whey protein B, hydrolyzed whey protein C, hydrolyzed whey protein D, hydrolyzed whey protein E, hydrolyzed whey protein F, hydrolyzed whey protein G and hydrolyzed whey protein H. The compound hydrolyzed whey protein powder prepared by the technical scheme has the effect of preventing sarcopenia of old people, and a new idea of compounding hydrolyzed whey protein powder of different brands and different hydrolysis degrees and actual application effect verification are provided.

The invention discloses a composition containing D-chiro-inositol as well as a preparation method and application of the composition. The composition comprises D-chiro-inositol, Myo-inositol and microcapsule powder, wherein the wall material of the microcapsule powder consists of anhydride modified edible protein and a polysaccharide compound; the edible protein is selected from at least one of spirulina protein, quinoa protein, whey protein and soybean protein; the polysaccharide compound comprises at least one of fucoidin and larch arabinogalactan. Active components are also embedded in the microcapsule powder, and comprise at least one of Omega-3, coenzyme Q10, astaxanthin and vitamin. According to the composition, the stability and bioavailability of fat-soluble active ingredients are improved through microencapsulation, and the composition has a synergistic effect with components such as D-chiro-inositol and Myoinositol, so that insulin resistance is effectively improved, female hormone balance is adjusted, and polycystic ovarian syndrome is improved. The process is simple, is suitable for large-scale production, and can be widely applied to dietary supplements or functional foods.

The invention belongs to the technical field of dairy product processing, and discloses camel milk composite nutrition powder beneficial to bone health, the camel milk composite nutrition powder is composed of the following raw materials by weight: 70%-75% of whole camel milk powder, 5%-15% of whey protein, 5%-20% of isomaltooligosacharide, 1%-10% of inulin, 0.02%-8% of milk mineral salt, 0.02%-5% of hydrolyzed yolk powder, and the balance water. The oral liquid is prepared from the following components in percentage by weight: 0.01%-0.5% of colostrum basic protein, 0.01%-1% of cartilage powder containing type II collagen, 0.01%-0.1% of N-acetylglucosamine, 0.01%-0.02% of sodium hyaluronate, 0.05%-5% of collagen peptide and 0.01%-1% of liquorice extract. According to the invention, a multi-dimensional health system is constructed by scientifically compounding a plurality of key components: milk mineral salt, colostrum basic protein and hydrolyzed egg yolk powder synergistically promote bone mineral density increase and bone metabolism balance; the II-type collagen cartilage powder, the N-acetylglucosamine and the sodium hyaluronate are combined to realize joint protection and skin repair; the six vitamins and the four minerals can accurately regulate and control the nutrition metabolism of the middle-aged and elderly people, especially can strengthen calcium absorption and oxidation resistance, and can significantly improve the bone health and improve the skin state.

The invention relates to the technical field of food processing, in particular to antioxidant nano collagen peptide powder and a preparation method thereof.The antioxidant nano collagen peptide powder is prepared by forming antioxidant micelles wrapping collagen peptide through collagen peptide liquid and a complex antioxidant, loading the antioxidant micelles on a porous carrier and then conducting cross-linking through transglutaminase; tea polyphenol and whey protein are covalently combined to prepare a composite antioxidant, rapid free radical neutralization, lactoferrin inhibition of an oxidation source and synergistic effect of collagen peptide self-antioxidant groups are provided, multistage barrier design is combined, oxygen diffusion is isolated through a micelle hydrophobic core, and the contact area of micelles and the outside is reduced through physical adsorption of a porous carrier, so that the anti-oxidation effect of the collagen peptide is improved. Finally, the micelles are fixed in the carrier by utilizing an enzyme cross-linked network, so that the antioxidant nano collagen peptide powder has efficient and long-acting antioxidant capacity.

The invention belongs to the technical field of emulsion gel preparation, and discloses a preparation method of interpenetrating cross-linked network emulsion gel for improving the stability of anthocyanin and xanthophyll. According to the invention, a whey protein network induced by TG enzyme and a sodium alginate network induced by Ca < 2 + > are mutually crosslinked to form emulsion gel with an interpenetrating network structure, and purple sweet potato anthocyanin extract and xanthophyll are jointly loaded. The whey protein and sodium alginate interpenetrating cross-linked network emulsion gel is good in rheological property, uniform in micro-pore distribution and high in anthocyanin and xanthophyll stability, has the advantages of being natural, environmentally friendly, green and sustainable, and has wide application prospects in the field of functional food.

The invention relates to the technical field of organic fertilizers, in particular to a special fruit-promoting and quality-improving organic fertilizer for camellia oleifera trees and a preparation process thereof, and the special fruit-promoting and quality-improving organic fertilizer is prepared from the following raw materials: composted chicken manure, camellia oleifera shell powder, fulvic acid, chitosan oligosaccharide, double-layer coated slow-release particles, a soil conditioner, a microbial agent and zinc sulfate. After the potassium feldspar powder is activated by citric acid, the effectiveness of potassium is remarkably improved, and the inner layer modified whey protein film preferentially obstructs water contact and delays the release of potassium in the initial stage, so that the problem of excessive growth of branches and leaves is avoided; the outer polyethylene glycol-glycerol copolymer film has a temperature-sensitive characteristic, can respond to soil humidity and temperature changes, is gradually degraded and accelerates potassium release, so that the high-potassium requirement in a grease synthesis critical period is met; the double-film barrier structure effectively reduces early loss of potassium, ensures continuous potassium supply in later fruit expansion and grease accumulation stages, and remarkably reduces the risk of fruit drop caused by insufficient potassium.

The invention discloses an elastic chewable nicotine oral product and a preparation method thereof. The elastic chewable nicotine oral product comprises a nicotine source and an additive, the nicotine source is dissolved in the mixed solution of the additive, so that the nicotine oral product forms a soft elastomer, and the nicotine is slowly released in the oral cavity through chewing; the nicotine source is extracted or chemically synthesized from tobacco; the additive comprises a gelling agent, and the gelling agent comprises one or a combination of more of gelatin, agar, konjac polysaccharide, xanthan gum, pectin, carrageenan, sodium alginate, semen plantaginis polysaccharide, guar gum, gellan gum, curdlan, whey protein, casein or soybean protein. The gel is added into the carrier to realize physical embedding of the nicotine, the elastic and chewable oral nicotine product can be obtained without bonding fixation, and the nicotine is released through gel swelling-diffusion regulation, so that the oral nicotine product has no residue in the oral cavity and does not pollute the package when being used, and the purposes of dynamically releasing the nicotine and improving the consumption experience are realized.

The invention belongs to the field of food, and particularly relates to a preparation method of hydrolyzed whey protein. The preparation method of the hydrolyzed whey protein provided by the invention comprises the following steps: performing high-pressure homogenization on a whey protein aqueous solution, hydrolyzing the whey protein aqueous solution subjected to high-pressure homogenization in the presence of an enzyme, and performing enzyme deactivation, wherein in the step of performing high-pressure homogenization on the whey protein aqueous solution, the pressure of high-pressure homogenization is 150 to 450 MPa, and the time of high-pressure homogenization is 20 to 35 minutes. According to the method, protein feed liquid containing whey protein is subjected to high-pressure homogenization treatment before hydrolysis, so that alpha-helix, beta-fold and other protein secondary structures can be fully changed, the hydrolysis reaction time is greatly shortened, the bitter taste of the whey protein hydrolysate can be improved, and the characteristics of a whey protein hydrolysate downstream product can be improved; the osmotic pressure of the formula milk is reduced, and the reconstituability of the formula milk powder is improved.

The invention relates to a preparation method of formula milk powder. The method comprises the following steps: mixing: mixing a base milk raw material solution, a skimmed milk raw material solution, a demineralized whey raw material solution and other optional non-temperature-sensitive components allowed to be added; a spray drying step, wherein the mixed material obtained in the mixing step is subjected to spray drying to obtain powder; wherein in the mixing step, the base milk raw material liquid is pasteurized emulsion directly from animals; the skimmed milk raw material liquid is an emulsion obtained by centrifugally degreasing animal milk; the desalted whey raw material solution is an emulsion obtained by subjecting animal milk to whey separation and whey desalination, the whey separation is performed by membrane separation, and the whey desalination is performed by membrane separation to remove salt from the whey. According to the preparation method disclosed by the invention, the denaturation rate of Maillard reaction products and whey protein in the formula milk powder is effectively reduced, and meanwhile, the reconstituability and digestion and absorption properties of the product are improved.

The invention discloses a preparation method of an enzyme preparation microcapsule with an intestinal tract slow release function. According to the method, coating wall materials in a specific proportion are adopted, the coating wall materials comprise 10-12 parts of Arabic gum, 4-8 parts of gelatin, 3-6 parts of whey protein, 8-16 parts of beta-cyclodextrin and 5-10 parts of trehalose, the coating wall materials are mixed with 10-15 parts of an enzyme agent, and the enzyme preparation microcapsule is prepared through a spray drying technology. The enzyme preparation microcapsule has excellent thermal stability and gastric juice tolerance, can maintain more than 90% of enzyme activity under the condition of 90 DEG C, and still maintains more than 65% of enzyme activity after being treated in simulated gastric juice for 4 hours. In addition, the enzyme preparation microcapsule has an intestinal directional slow-release function, the enzyme activity is quickly released after entering the intestinal tract for 15 minutes, and the peak value is reached after the enzyme preparation microcapsule enters the intestinal tract for 60 minutes. The method effectively improves the stability and bioavailability of the enzyme preparation in feed processing and animal digestive tract environment, and has good application prospect and market value.

The invention relates to the technical field of 3D printing food, in particular to a preparation method of lotus root whole powder composite whey protein 3D printing food suitable for people with dysphagia, and the preparation method comprises the following steps: preparing lotus root whole powder from fresh lotus roots; lotus root whole powder and whey protein are mixed, distilled water is added to prepare suspension liquid, the suspension liquid is homogenized, then the suspension liquid is put into a water bath kettle to be stirred at a high temperature, the mixture is transferred into a 3D printer charging barrel to be subjected to water bath treatment, and composite printing ink is obtained; a food 3D printer is used for printing, and the lotus root whole powder composite whey protein 3D printing food is prepared. The lotus root whole powder and the whey protein are used as basic raw materials, the material ratio, the gelatinization time, the gelatinization temperature and the rotating speed are optimized, 3D printing of the lotus root whole powder composite whey protein is achieved, the precision of printed products is guaranteed, materials of the food 3D printing industry are enriched, printed food can be better suitable for diet of people with dysphagia, and the food quality is improved. Wide application prospects and market values are realized.

The invention discloses a nanopore filtering and separating medium as well as a preparation method and application thereof, a polymer-based nanopore medium with accurate pore size distribution is constructed through a template-induced self-assembly technology, and efficient interception of milk fat components and selective permeation of whey protein are realized in combination with a surface functionalization modification strategy. Based on a size screening and electrostatic repulsion synergistic mechanism, milk fat enrichment and milk protein purification are synchronously completed under mild operation conditions, and energy consumption and component loss in a traditional process are remarkably reduced. And the long-term operation stability is maintained by regulating and controlling the structure parameters and surface chemical characteristics of the nano-pore channel. The technology provides an innovative solution for developing high-purity buffalo milk fat products and defatted buffalo milk products.

The invention relates to the field of foods, and particularly discloses a micromolecule peptide-based nutritional food for preventing muscle attenuation for the elderly and a preparation method of the micromolecule peptide-based nutritional food. Comprising the following components in parts by weight: 23-50 parts of protein, 35-60 parts of carbohydrate, 4-9 parts of fat, 1-10 parts of dietary fibers, 0.5-1.2 parts of mineral elements, 0.1-1.0 part of vitamins, 0.2-1 part of dietary essence and 1-6 parts of new resource food. The small molecule peptide (containing collagen peptide) and the whey protein (containing branched chain amino acid) are combined to improve muscle quality through double ways of promoting synthesis and inhibiting decomposition, the effect is better than that of a single peptide component, and vitamin D3, magnesium element (Mg) and fructo-oligosaccharide are supplemented to act on muscle contraction, energy metabolism and intestinal tract-muscle axis links respectively, so that the muscle quality is improved. A systematic intervention scheme is formed, and the raw materials required by the preparation of the related small molecule peptide-based muscle attenuation-preventing nutritional food for the elderly are wide in source and relatively low in cost.

The invention belongs to the technical field of special food preparation, and particularly relates to resistant dextrin high-protein full-nutrient formula powder and a preparation method thereof. According to the resistant dextrin high-protein full-nutrition formula powder disclosed by the invention, the resistant dextrin is used as a main raw material, the soybean protein isolate, the whey protein concentrate and the calcium caseinate are matched to serve as a high-protein source, and the konjac glucomannan and the xanthan gum are compounded for use so as to increase satiety; the prepared resistant dextrin high-protein full-nutrition formula powder not only has relatively high energy, but also has relatively strong satiety after being eaten, and is suitable for people who lose weight to eat.

The invention provides a preparation method of candies containing a sodium alginate-whey protein composite wall material. The preparation method comprises the following steps: dissolving sodium alginate and whey protein, and then adding active ingredients and the like to prepare a nano-emulsion; performing spray drying to obtain microcapsule powder; after the candy matrix is boiled, microcapsule powder and nano silicon dioxide aerogel are mixed in stages; and finally, carrying out surface coating and ultraviolet curing. The method mainly achieves the following breakthroughs: firstly, a triple protection system is formed, and the problem of survival of probiotics is solved; 2, synergistic release of flavor and functional components is realized; and thirdly, the adaptability problem of the composite wall material is solved, the stability is improved, and the moisture demand contradiction is solved.

The present invention relates to the field of cosmetics, and in particular to a tea fermentation composition and application that promotes the penetration of dual proteins. The tea fermentation composition of the present invention comprises black tea fermentation filtrate, whey protein, and recombinant collagen. The black tea fermentation filtrate used in the present invention contains more inositol and small molecule biological penetration-promoting polypeptides that promote skin penetration, which can effectively improve the antioxidant, anti-aging, and repair capabilities. After the black tea fermentation filtrate is compounded with whey protein and recombinant collagen, it can help solve the problem of the difficulty of dual protein penetration, thereby improving the utilization rate of dual protein in cosmetics, making it play its maximum effect, and achieving synergistic effect. The tea fermentation composition obtained by the present invention is added to cosmetics to greatly enhance the antioxidant, repair, anti-wrinkle and other effects.

The invention belongs to the technical field of medical nutritional food, and particularly relates to a composite peptide nutritional composition for promoting wound healing and a preparation process and application thereof. The composite peptide nutritional composition for promoting wound healing is prepared from the following preparation raw materials in percentage by weight: 15%-25% of fish collagen peptide, 0.03%-0.05% of cattle spleen peptide, 0.10%-0.30% of blood protein oligopeptide, 0.10%-0.30% of albumin peptide, 0.01%-0.03% of ginseng powder, 15%-20% of a composite fermentation extract, 10%-20% of a plant extract, 20%-25% of prebiotics and the balance of whey protein matrix, totaling 100%. The self-made fish collagen peptide, the compound fermentation extract and other raw materials are adopted, the content of various active ingredients such as healing-promoting peptide fragments and anti-inflammatory repair is increased, the bioavailability of the plant extract is improved through the embedding technology, and therefore the wound healing rate and quality are remarkably improved.

The invention discloses an application of lactobacillus delbrueckii subsp. Lactis LDL557 in enhancing whey protein and improving immunity performance. After whey protein is fermented by lactobacillus delbrueckii subsp. Lactis LDL557, it is accidentally found that the original immune performance of the whey protein is remarkably improved. Therefore, the lactobacillus delbrueckii subsp. Lactis LDL557 can be used for preparing food or health care products for improving the immunity performance of whey protein.

Described herein are compositions comprising an extract from Hibiscus genus and an extract from damaged plant parts from the Moringaceae genus, and methods for stimulating collagen synthesis in skin cells. Also described herein are compositions comprising an extract from Hibiscus genus, an extract from damaged plant parts from the Moringaceae genus, and a complex of actives comprising at least one oligopeptide, at least one extract from the Laminaria genus, and whey protein.

The invention discloses genipin modified ginkgo protein and whey protein composite gel and a preparation method thereof, and belongs to the field of functional food. The method comprises the following steps: (1) uniformly mixing a prepared ginkgo protein solution and a prepared whey protein solution, and adjusting the pH value to obtain composite sol; (2) adding a genipin reagent into the composite sol, carrying out a cross-linking reaction, and after the reaction is completed, adjusting the pH value again to obtain a genipin-treated composite sol; and (3) carrying out thermal induction gel formation on the genipin-treated composite sol, taking out and cooling to obtain the genipin-modified ginkgo protein and whey protein composite gel. Animal protein and plant protein are combined through the cross-linking agent genipin, so that the prepared composite gel is more nutritional, pollution to the environment is reduced, application in food production is facilitated, meanwhile, the composite gel treated with the cross-linking agent genipin has more diversified functional characteristics, and the composite gel is suitable for being applied to food production. And the food can be provided for people with different requirements.