35results about How to "Reduce antioxidant" patented technology

The invention discloses a matrimony vine composite health care enzyme and a preparation method thereof. The matrimony vine composite health care enzyme comprises the raw materials of 1-16 parts of matrimony vine, 0-12 parts of red date, 0-1 part of licorice, 0-4 parts of black rice, 0-2 parts of white hyacinth bean, 0-5 parts of oat, 0-5 parts of tartary buckwheat, 0-3 parts of cassia seed, 0-1 part of chrysanthemum, a lot of honey, a lot of granulated sugar, a lot of high fructose corn syrup and a lot of oligosaccharide. The method comprises the following steps: beating matrimony vine and red date, extracting chrysanthemum and licorice, immersing the cereal and steaming, inoculating Aspergillus oryzae and Kluyveromyces Marxianus yeast and fermenting, and performing pulp refining, sterilizing a mixed liquor, and inoculating lactics for enclosed insulation and fermentation to obtain the matrimony vine composite health care enzyme. The matrimony vine composite health care enzyme stock solution can be prepared to a matrimony vine composite health care enzyme concentrated slurry, an enzyme paste and enzyme powder, and the enzyme powder can be prepared to a matrimony vine composite health care enzyme effervescent tablet, a particle electuary, a chewing tablet, a lozenge and a capsule.

The invention relates to a special clinical nutrient composition for gestational diabetes and a preparation method of the nutrient composition. The composition comprises 20-35 parts of protein, 8-15 parts of fat, 25-40 parts of carbohydrate, 3-8 parts of dietary fiber, 0.6-1.2 parts of macroelements, 0.01-0.03 parts of microelements, 0.005-0.015 parts of fat-soluble vitamins, 0.08-0.2 parts of water-soluble vitamins, 0.05-0.6 parts of dietary essence, 0.5-4 parts of medicinal and edible components, 0.1-1 part of natural plant compounds and 0.1-0.4 parts of new resource food, wherein the medicinal and edible components are selected from at least one of Chinese yams, black sesame, radix puerariae, rhizoma polygonate, folium mori, fructus lycii, radix platycodonis and lilies; powder is prepared from the components in advance, and grease powder is prepared from fat with a microencapsulating technology. Through sieving and proportioning of the components, the nutrient composition can provide comprehensive nutrition for patients suffering from gestational diabetes, and digestion and absorption are facilitated; besides, the components with the blood glucose reducing function are added to assist in reducing the blood glucose level of the gestational diabetes and the disease risk, and growth demands and normal development of fetuses are guaranteed.

The invention relates to a table salt into which black tea or green tea is added and a preparation method thereof, belonging to the technical field of foods. The table salt is prepared by adding black tea powder or green tea powder of which the tea polyphenol content is 16-26.7 percent into an iodine-free table salt, wherein the total content of the tea polyphenol is 0.1-0.4 g / kg. The table salt prepared with the preparation method is taken as a seasoning, can bring the original nutritional function of black tea or green tea into full play, and has a simple preparation method and low cost.

The invention belongs to the technical field of dairy product processing, and particularly discloses a preparation method for high-activity peptide acidified milk. The method comprises the steps: S1, preparation of a leavening agent; S2, inoculation; S3, two-stage fermentation. According to the method, fermentation strains are screened and are compounded according to a certain ratio, and a two-stage fermentation method is adopted, so that the coordinate symbiosis among various strains gives full play to own characteristic advantages, the acid production, aroma producing and proteolysis capabilities of the strains tend to an optimal state, acidified milk obtained by production has more small molecule peptide than traditional acidophilus milk. Casein and whey protein are both subjected to advanced degradation during a fermentation process, so as to be easily digested and absorbed by a human body, the prepared high-activity peptide acidified milk has the healthcare functions of lowering serum cholesterol, reducing blood glucose, resisting hypertension, resisting oxidation, boosting immunity, improving intestinal function, and the like.

The invention provides a method for extracting leaf of Chinese ilex of broadleaf holly leaf, and total saponin of the leaf of Chinese ilex of the broadleaf holly leaf extracted by the method and application thereof. The method comprises the following steps of: (1) extracting the leaf of Chinese ilex of the broadleaf holly leaf by using 50-70% ethanol aqueous solution in a backflow manner;(2) filtering and removing ethanol in an extracting solution; (3) adsorbing a large-hole resin column in the solution obtained by the step (2), and eluting the large-hole resin column sequentially by using water, 10-30% alkaline ethanol aqueous solution with a pH value of 9-11, 10-30% ethanol aqueous solution and 50-70% ethanol aqueous solution; and (4) eluting the large-hole resin column by using the 50-70% ethanol aqueous solution to obtain a solution, and concentrating and drying the solution to obtain the leaf of Chinese ilex of the broadleaf holly leaf. The prepared total saponin can be applied to preparing medicines for reducing cholesterol and blood fat and resisting atherosclerosis.

The invention discloses a split-bin-type anti-aging cosmetic composition, and relates to the technical field of cosmetics. The split-bin-type anti-aging cosmetic composition comprises a composition Aand a composition B; the composition A is an oily liquid and is independently sealed; the composition B is an aqueous liquid and is independently sealed; the composition A contains retinyl palmitate,coated retinol, tocopherol and compound vegetable oil; and the composition B contains nicotinamide, a citrus peel extract, soluble proteoglycan, a myrothamnus flabellifolia leaf / stem extract, a hylocereus undatus fruit extract, sodium hyaluronate, coated ferulic acid, carnosine and 3-o-ethyl ascorbic acid. According to the split-bin-type anti-aging cosmetic composition provided by the invention, the substances in the composition A and the composition B are compounded according to a proper ratio and have synergistic interaction, so that the cosmetic composition has the anti-oxidation and anti-aging effects of improving skin elasticity, improving skin smoothness and reducing skin wrinkles.

The invention relates to the production for health-caring food, in particular to glycoprotein of yam and an ultrasonic auxiliary extraction method thereof. The product contains 60-70% of the glycoprotein of yam. The glycoprotein is a mixed product and the main composition thereof is a neutral glycoprotein composition and an acid glycoprotein composition, respectively with the molecular weight of 89,381Da and 47,412Da and respectively with the proportion in the product of 40-46% and 14-18%. The method of the invention comprises the steps as follows: slicing the dry yam, crushing the yam, pulse ultrasonic auxiliary extracting with water, depositing with ethanol, centrifugal collecting and depositing, drying under low temperature and obtaining the glycoprotein of yam; alternatively, the fresh yam is crushed into slurry and the pulse ultrasonic auxiliary extraction is directly carried out so as to obtain the glycoprotein of yam; the obtained glycoprotein of yam has the effects of regulating immune, tumor inhibition, reducing the blood sugar and the blood lipid, oxidation resistance, anti-aging, etc.

The invention provides an edible fungi functional beverage and a preparation method thereof. The edible fungi functional beverage comprises the following raw materials: an edible fungi extracting solution, a Chinese wolfberry extracting solution, a red date extracting solution, a Chinese gooseberry extracting solution, a laminaria extracting solution, honey and purified water. The preparation method comprises the steps of preparation and mixing of the raw materials. The edible fungi functional beverage has the benefits of adjusting human immunity, and supplementing body's vitamin, mineral substances and electrolyte, has the motor functions of reducing consumption and recovering physical strength, can supplement water and nutrient elements fast, is comprehensive in function, and contains no additive, thereby avoiding impact on a human body, protecting people's body health comprehensively, and being suitable for long-term drinking, good in drinking effect, and favorable for popularization.

The invention discloses a processing method of a vine tea beverage and belongs to the technical field of food processing. The processing method comprises the following steps: blending vine tea, oolong tea, liquorice and wolfberries, then grinding the materials to be 16-40-mesh; leaching by using a low-temperature countercurrent leaching manner to obtain a leaching solution; carrying out enzymolysis on the leaching solution by using complex enzymes to obtain an enzymolysis solution; centrifuging the enzymolysis solution at high speed to obtain clear tea water; diluting the clear tea water and adding VcNa and cane sugar to obtain the vine tea beverage; and filtering, sterilizing and canning the vine tea beverage to obtain a finished vine tea beverage. The vine tea beverage prepared by adopting the method is sweet and aromatic, is rich and smooth in taste, and free of obvious bitter taste, and has a plurality of healthy functions.

The present invention belongs to the technical field of health-care food, and discloses an alpha-linolenic acid soft capsule with a function of auxiliarily lowering blood lipids and a preparation method thereof. The soft capsule consists of contents and capsule materials. The contents comprise the following effective ingredients: alpha-linolenic acids and radix astragali extract. The capsule materials consist of the following raw materials: gelatin, glycerin and water. The refined flaxseed oil containing a high content of alpha-linolenic acids is selected, the radix astragali extract is used as a raw material, a wetting agent, an emulsifier, and a suspending agent are added, the materials are mixed evenly to form the homogenous and stable contents and capsule materials, and then pill pressing, shaping, pill washing, pill air-drying, internal packing and external packing are carried out to prepare the soft capsule with the function of auxiliarily lowering blood lipids. The capsule materials are free of any preservatives and good in safety. In addition, the production technology is advanced and simple, the soft capsules are convenient for consumption and rapid and complete in absorption. The alpha-linolenic acid soft capsule is capable of regulating blood lipids, preventing oxidation, etc., and is suitable for all types of population with high blood lipids.

The invention discloses a preparation method of a preserved hami melon fruit. The processing method comprises the processes of peeling a hami melon, removing the seeds and core, heating and permeating materials intermittently, sugaring, drying, cooling and packaging. The preparation method overcomes the shortcoming in traditional processing way of the preserved hami melon fruit; the technology of intermittently heating and permeating materials is adopted, which is beneficial for improving the speed of the liquid permeating into the preserved hami melon fruit, and the liquid permeating time is reduced from more than 40 hours to 18 to 25 hours; a plurality of plant components are organically combined, so that the preserved hami melon fruit has high nutritive value and complete health functions; the preserved hami melon fruit is wide in raw material source and low in manufacture cost, and the processing method is simple and easy to carry out; active ingredients in medical plants are fully dissolved into the preserved hami melon fruit during the preparation, so that the preserved hami melon fruit smells fragrant and refreshing and has the effects of tonifying kidney, appetizing and improving digestion, promoting blood circulation to remove blood stasis, dredging the channels, maintaining beauty and keeping young, and is suitable for people of all ages.

The invention discloses selenium-rich fine dried noodles. The selenium-rich fine dried noodles are prepared from the following components in parts by weight: 80-100 parts of selenium-rich wheat flour, 5-15 parts of fresh hen eggs, 10-15 parts of corn starch, 5-10 parts of sweet potato starch, 1-5 parts of edible iodised salt and an appropriate amount of pure water. The selenium-rich fine dried noodles disclosed by the invention are long in quality guarantee period, good in moldability, low in breaking rate, and low in breaking rate when the fine dried noodles are cooked, and the phenomena of breaking and delamination are avoided.

The invention relates to the field of microorganisms, in particular to a composite lactobacillus inoculant and an application thereof in buffalo silage. The composite lactobacillus inoculant is composed of lactobacillus fermentum xf 09#, lactobacillus mucosae xf 13#, lactobacillus acidophilus xf 32# and lactobacillus plantarum xf 42# which are screened and separated from feed raw materials naturally fermented in a peasant household by the applicant. The composite inoculant is homotype lactic acid lactobacillus fermentum, and has the characteristic of high lactic acid yield. The pH value can bequickly lowered in the fermentation process to form a dominant environment for lactobacillus fermentation, the growth of infectious microbes is effectively inhibited, and a favorable fermentation inoculant and environment can provide for silage. Meanwhile, lactobacillus has the effects of bidirectional regulation and diarrhea resistance on intestinal tracts.

The invention discloses a method for improving the foaming property and foam stability of serum albumin by utilizing chitosan oligosaccharide. The method comprises the following steps: adding chitosanoligosaccharide into serum albumin, performing uniform mixing in a solvent, and regulating the pH of the mixture to be 5-9. The invention further provides a foaming agent. The foaming agent is a serum albumin / chitosan oligosaccharide system, namely a mixed solution with the pH of 5-9 prepared by dissolving serum albumin and chitosan oligosaccharide in the solvent. According to the method for improving the foaming property and foaming stability of serum albumin by utilizing chitosan oligosaccharide, the noncovalent static interaction can be generated from chitosan oligosaccharide and serum albumin by adjusting the pH value, a chitosan oligosaccharide / serum albumin compound is formed, and the foaming property and foam stability of the serum albumin can be remarkably improved with simple combination. The method is simple in process and can reduce time cost.

The invention discloses a traditional Chinese medicine preparation, which comprises a component A and a component B. The component A comprises asarum, Xanthium, radix angelicae, radices sileris and fructus cnidii, and the component B is one or a combination of Scutellaria baicalensis, herba schizonepetae, Centipeda minima, Cineraria repanda, rhizoma acori graminei, white atractylodes rhizome, cassia twig, Astragalus membranaceus, Honeysuckle, magnolia flower, Ligusticum wallichii, smoked plum, Licorice, and cicada slough, the traditional Chinese medicine preparation has antibacterial and bactericidal effects, directly acts on lesions, infection sites, and is obvious in treatment effect and free of risk of bacterial drug resistance.

The invention provides a weight reducing healthcare product. The weight reducing healthcare product is characterized by being prepared from 15-45 parts of vervain, 15-45 parts of oolong, 10-35 parts of shaddock peel, 8-25 parts of mint leaves and 8-20 parts of lemon grass. The adopted components coordinate to act to jointly achieve the effects of adjusting blood lipid, invigorating the stomach and helping digestion, expelling toxins and beautifying, and promoting urination and relaxing the bowls, and therefore the good effect of eliminating fat and reducing weight is achieved, the weight losing effect is stable, and no side effect exists.

The invention provides application of Kudingcha saponin D represented by formula (I) as described in the specification in preparation of pharmaceuticals, especially application of the Kudingcha saponin D in preparation of drugs used for preventing and / or treating diseases and / or symptoms caused by dyslipidemia.

The invention discloses a composition with a function of removing chloasma and a preparation method of the composition with the function of removing the chloasma. The composition is mainly prepared from the following raw materials in parts by weight: 58.5-175.5 parts of a salvia miltiorrhiza extract, 33.5-100.5 parts of a Chinese angelica extract, 25-75 parts of a rose extract 8.5-25.5 parts of lycopene and 8.5-25.5 parts of vitamin E powder. The raw materials of the composition have the antioxidant ability and can be used for effectively improving a chloasma condition on the face of a patient, improving the microcirculation on the face, fading away stains, obviously lowering the area and chromaticity of the chloasma on the face of the patient. According to a human feeding trial, the composition has better chloasma removing effects in comparison with a single salviae miltiorrhizae extract preparation and a single Chinese angelica extract preparation under the same use amount, and is suitable for the use by vast chloasma patients.

The invention provides health-care noodles and a preparation method thereof, and relates to the technical field of processing and treatment of foods. The health-care noodles comprise 1-20 parts of materials with high oil content, 80-99 parts of wheat flour, a fat-soluble antioxidant, and trace edible salt and dietary alkali, wherein the protein content in finished products is greater than or equalto 15 g / 100 g. The preparation method comprises the following steps of pretreating the materials with high oil content; performing grinding to obtain pulp; performing homogenizing; mixing the homogenized pulp with ordinary flour; making dough; and performing noodle shaping, performing packaging and guaranteeing the quality with nitrogen. According to the health-care noodles and the preparation method thereof disclosed by the invention, a colloid mill crushing manner is adopted, thus, the defects that the oil content of fructus cannabis and the oil content of walnut kernels are high, oil is easy to generate and the fructus cannabis and the walnut kernels are easy to bond during crushing and grinding in a common crushing manner, the particle size is difficult to meet the requirements for making the noodles, and the manner of adding water for filtration after crushing can cause loss of effective components are overcome, and qualified noodle raw materials are provided; and in addition, fructus cannabis oil has the effects of reducing cholesterol, resisting oxidation, eliminating free radicals in human bodies and the like, does not contain allergens, and can effectively complement nutrients necessary for the human bodies.

The invention discloses a low-silver lead-free solder alloy for brazing. The raw materials of the alloy comprise the following components of, in percentage by mass, 96%-97% of Sn, 0.8%-0.85% of Ag, 0.5%-0.55% of Cu, 1.60%-2.5% of Bi and 0.05%-0.1% of Ni, and the sum of the components is 100%. The alloy has the characteristics of oxidation resistance, good structure uniformity and excellent creep resistance, and the preparation method of the alloy is simple, easy and convenient to operate and can be used for batch production.

The invention provides a preparation method of acne-removing essence containing green tea extract and belongs to the technical field of essence preparation. The preparation method comprises the steps of preparing the green tea extract, preparing gloiopeltis furcata extract, preparing water-phase liquid, preparing oil-phase liquid and preparing the essence. Green tea contains rich tea polyphenol and the tea polyphenol is a water-soluble substance and can be used for reducing the secretion of grease and eliminating a the facial greasy feeling of a face so that the acne-removing effect is realized; the green tea also has the effects of converging pores, disinfecting and resisting bacteria, resisting oxidization and the like and has the effects of reducing injuriesinjury, caused by ultraviolet radiation in sunlight, to skin and the like. Gloiopeltis furcata can be used for effectively improving intracutaneouscutaneous or subcutaneous tissue injuries injury of acne scars, deep wrinkles and defects of other soft tissues, can be used for repairing wounds remained caused by the pimples and the acnes, has the effects of regulating grease secretion and diminishing inflammation and resisting bacteria, and especially has a very good treatment effect on the acnes. Silk protein has the effect of repairing skin tissue cells. The essence prepared by the preparation method provided by the invention has high natural ingredients, is easy to absorb and has a good acne-removing effect and the preparation method is simple.

The invention belongs to the field of candies, and particularly relates to seaweed polysaccharide chewing gum. The seaweed polysaccharides chewing gum consists of the following raw materials in parts by weight: 6-10 parts of seaweed polysaccharide, 6-10 parts of erythritol, 3-5 parts of xylitol, 4-6 parts of a honeysuckle flower extract, 4-6 parts of an aloe extract, 2-4 parts of tea polyphenols, 1-3 parts of vitamin C, 1-3 parts of vitamin E, 0.6-0.8 part of sorbitol, 12-16 parts of polydextrose, 1-3 parts of mint oil and 15-25 parts of a gum base for chewing gum. The seaweed polysaccharides chewing gum provided by the invention can effectively clean oral cavities, refresh breath, prevent decayed teeth, kill bacteria, diminish inflammation, clear heat, remove toxicity and delay senescence. The seaweed polysaccharides chewing gum disclosed by the invention contains the seaweed polysaccharide, is rich in various amino acids and bioactive substances, can improve organism immunity, reduce blood lipid, and resist oxidation; and when the seaweed polysaccharides chewing gum is matched with other functional components, cheerful enjoyment can be provided, and people can enjoy favorable health-care effects during relaxing and resting.

The invention belongs to the field of skin care products, and relates to a natural plant oil composition for relieving ichthyosis and a preparation method and application of the natural plant oil composition. The natural plant oil composition is prepared from the following raw materials in parts by weight: 35-46 parts of shea butter, 6.3-8.3 parts of calendula infused oil, 18.2-25.5 parts of blackcumin seed oil, 4.5-5.5 parts of argan oil, 1.5-3 parts of sea buckthron oil and 45-55 parts of coconut oil. The natural plant oil composition can be used for treating, preventing or relieving the ichthyosis, takes effect quickly, and is small in toxic and side effects. In the preparation method of the natural plant oil composition, all raw materials are natural plant raw materials, and the natural plant oil composition can be prepared well.

The invention discloses a wolfberry compound health-care enzyme and a preparation method thereof. The raw materials are composed of 1-16 parts of wolfberry, 0-12 parts of red dates, 0-1 part of licorice, 0-4 parts of black rice, 0-2 parts of white lentils, and oats 0‑5 parts, 0‑5 parts of tartary buckwheat, 0‑3 parts of cassia seed, 0‑1 part of chrysanthemum, some honey, some sugar, some fructose syrup, and some oligosaccharides. Lycium barbarum and red dates are beaten, chrysanthemum licorice is extracted, grains are soaked and cooked, inoculated with Aspergillus oryzae and Kluyveromyces mareks for fermentation, and then refined. Goji berry compound health enzyme stock solution can be used to produce wolfberry compound health enzyme concentrate, enzyme cream, and enzyme powder, and from the enzyme powder, goji berry compound health enzyme effervescent tablets, granules, chewable tablets, lozenges, capsules and other products can be produced.

The invention discloses an intermittent drying process for improving bonded phenol in litchi pomace and application thereof. The drying process comprises the steps of: (1) pretreatment: after peeling, denucleating and cleaning litchis, carrying out juicing, and centrifuging to remove supernatant so as to obtain litchi pomace; and (2) intermittent process and heat pump infrared combined drying: carrying out intermittent process and heat pump infrared combined drying on the litchi pomace to obtain the dried litchi pomace. According to the invention, the dried litchi pomace can be further subjected to superfine grinding to obtain litchi fruit powder. According to the drying process disclosed by the invention, the content of the bonded phenol in the litchi pomace can be remarkably increased, the obtained litchi fruit powder product is good in color and luster, the increase of the content of the bonded phenol in the litchi is effectively promoted, the antioxidant function of the bonded phenol in the litchi is remarkably improved so as to improve the nutritional function of the litchi pomace powder, and the drying process has commercial value in functional food development and utilization.

The invention discloses liver and stomach protecting oil emulsion with a function of dispelling the effects of alcohol. The oil emulsion is prepared from the following components by weight percent: 50-55% of an aqueous extract of radix puerariae, 35-43.5% of camellia oleifera seed oil, 2-4% of soyabean lecithin, 1.5-3% of sesamin, 2-4% of glucose and 1-2% of honey. The oil emulsion provided by theinvention is scientific in formula, can effectively dissolve alcohol and decompose ethanol so as to achieve the purpose of preventing and treating drunkenness, can protect the liver and the stomach,discharge toxins, minimize liver damage, accelerate liver repair and improve the regeneration function of the liver, and effectively and timely dispels the effects of the alcohol, protects the liver and detoxifies, thus protecting the human health.

The invention relates to the technical field of wine food processing, and particularly discloses dendrobium officinale black wine and a preparation method thereof. By combining an enzymolysis technology and a fermentation technology, the dendrobium officinale black wine is prepared from dendrobium officinale, glutinous rice, black rice, black sesame, black beans and black dates as raw materials; meanwhile, the preparation method is simple in overall process, and the prepared dendrobium officinale black wine is stable in quality, high in nutritional value and suitable for large-scale production, and research and development and large-scale production of the dendrobium officinale black wine are further facilitated.

The invention discloses raw materials and a preparation method of a health preserving multi-grain cake capable of preventing constipation. The preparation method comprises the following steps: S1, weighing proper amount of materials in parts by weight for later use; S2, placing flour in a basin, then adding proper amount of water, and clockwise stirring until the flour is stirred into paste; continuously adding materials, and continuously clockwise stirring; then adding proper amount of royal jelly, and stirring; kneading into a dough; transferring the dough into a tank; adding baking soda; fermenting for four to seven hours; S3, rolling the fermented dough into a circular cake being 3-6 cm in radius and 3-5 mm in thickness (or pressing through a die); uniformly coating edible oil on two surfaces of the circular cake; coating the edible oil on the surface of a baking dish; placing the circular cake in the baking dish; transferring the baking dish into an oven; cooling after baking; then bagging to store for eating. The health preserving multi-grain cake prepared through the raw materials by the preparation method has the effects of preventing constipation, strengthening the spleen and stomach, moistening the intestines, and filling up the stomach, so that the health of a user can be improved.

The invention belongs to the technical field of food processing, and discloses a health-care semen juglandis sauce capable of supplementing calcium and a preparation method thereof. The health-care semen juglandis sauce capable of supplementing calcium is prepared from the following raw materials in parts by weight: 100-120 parts of semen juglandis, 30-40 parts of sesame, 20-30 parts of bone marrow, 15-25 parts of dried small shrimp, 10-20 parts of fishbone, 10-20 parts of bean curd, 10-20 parts of kelp, 10-15 parts of celery, 10-15 parts of oilseed rape, 5-10 parts of maltose, 5-10 parts of tamarind polysaccharide gum, 5-10 parts of esterified starch, 5-10 parts of malic acid and 5-10 parts of honey. The invention further discloses a preparation method for the health-care semen juglandis sauce, mixed bone meal and vegetable slurry are added, so that the prepared semen juglandis sauce contains the natural flavor of the semen juglandis, contains rich calcium, various vitamins and microelements beneficial for human bodies, and the health-care semen juglandis sauce has the characteristics that nutrition is complete, the calcium can be supplemented and the like after the health-care semen juglandis sauce is eaten for a long time. The health-care semen juglandis sauce is suitable for crowds who suffer from calcium deficiency, is also suitable for children and old people and has a relatively high nutrition value and a health care and health maintenance function.