245 results about "Jujube Fruit" patented technology

The invention discloses an external skin care product capable of adjusting skin immunity and delaying skin aging. The external skin care product is characterized by comprising powder, an aqueous solution and emulsion, wherein the powder comprises oligopeptide-1 and ginsenoside; the aqueous solution comprises glycyrrhiza glabra root extract, artemisia capillaris flower extract, mulberry root extract, jujube fruit extract, scutellaria root extract, hydrolyzed rice protein and nicotinamide; and the emulsion comprises hgytantriol bifida ferment lysate, creatine, carnosine, alpha glucosyl hesperidin, hexapeptide-3, centella asiatica extract, coenzyme Q10 inclusion complex, opuntia ficus-indica stem extract, rhodiola rosea extract, saussurea involucrate extract, pseudo-ginseng root extract and Chinese angelica extract inclusion complex. According to the external skin care product, the powder, the aqueous solution and the emulsion are jointly used, and the external skin care product can reduce wrinkle and pachulosis, even skin tone and improve skin elasticity and skin firmness, so that the skin is finer and smoother and looks young.

The invention relates to jujube vinegar and a brewing method thereof, belonging to the technical field of food science. The jujube vinegar is purplish red, has clear liquid state, intense vinegar flavor, peculiar fragrance of golden-silk jujube and gentle sour; the total acid is more than or equal to 3.50g / 100mL, the non-volatile acid is more than or equal to 0.50g / 100mL; and the content of soluble solid state material is more than or equal to 1.0g / 100mL. The jujube vinegar takes the golden-silk jujube as a main raw material which is crushed and leached by adding water; the leach liquor is fermented by liquid state alcohol and solid state acetic acid, ageing, vinegar pouring, filtering, clarifying, pasteurizing, filling are carried out on the fermented leach liquor to obtain a finished product. The beneficial effects of the invention are as follows: jujube fruit is crushed, enzymolysis is carried out on pectinase, and the jujube vinegar is easily filtered, is clear and transparent. The invention plays an important role in promoting the reasonable process utilization of red jujube resources, the formation of post-harvest processing industrial chain and the adjustment of fruit processing industrial structure.

The invention discloses a brewing method of red jujube fruit wine capable of removing bitter, and belongs to the field of brewing science and technology. The finished wine is made by using red jujube as a raw material and by the following step: screening, drying, hydrating, soaking in alkali liquor, performing enzymolysis, pulping, filtering, regulating sugar and acid content, sterilizing at 100 DEG C for 20 minutes, inoculating pre-activated wine yeasts, fermenting for 4 to 6 days at 21 to 23 DEG C, filtering by centrifugation, clarifying chitosan, blending, aging, pouring, stabilizing and bottling. The brewing method has the characteristics that: the red jujube raw material is baked to generate full jujube aromas, and the bitter of the commonly fermented red jujube wine is reduced by the alkali liquor soaking and enzymolysis steps. The red jujube fruit wine contains various organic acids, vitamins and trace elements, has refreshing mouthfeel and mellow wine taste without the bitter, and is a low-alcohol content high-grade nourishing drink.

The invention discloses microbial composition bacterial liquid comprising the components of winter jujube rhizosphere growth promoting bacillus subtilis DZ1, saccharomyces cerevisiae and lactobacillus casei. The invention also discloses a microbial agent special for winter jujube and a preparation method thereof. The microbial agent is formed in a way of mixing the microbial composition bacterial liquid and an effect stabilizing assistant according to the weight ratio of 100: (4-7). The invention additionally discloses a bio-organic fertilizer special for the winter jujube which is formed in way of mixing the microbial composition bacterial liquid and an organic fertilizer, wherein the ratio of the organic fertilizer to the microbial composition bacterial liquid is 10: (1-2)(W / V). Proved by experiments, compared with a winter jujube seedling which is singly inoculated by using three kinds of bacterial strain fermentation liquor or promotion stabilizing assistants, a winter jujube seedling which is inoculated by using the microbial agent disclosed by the invention has the advantages that the root weight, the ground diameter and the seedling height of the winter jujube are remarkably increased; and compared with a winter jujube fruiting tree which is applied by a bio-fertilizer formed in a way of inoculating the winter jujube rhizosphere growth promoting bacillus subtilis DZ1 into the organic fertilizer or the organic fertilizer, a winter jujube fruiting tree which is applied by the bio-organic fertilizer disclosed by the invention has the advantages that the yield is improved by 10-20% and the quality is obviously improved.

The invention relates to a manufacturing method for golden thread preserved dates with low carbohydrate and lower calorific value, which comprises the steps of the screening, the cleaning, the filum dividing, the scalding and bleaching, the saccharifying and soakage, the baking and the reshaping of Chinese date fruit and the packaging of finished products; and is characterized in that: ethroglucin is used for replacing part of saccharose in the saccharifying or soakage process for manufacturing the Chinese date fruit. Being determined by tests, the sugar content of the golden thread preserved dates produced by the method of the invention is reduced from 70 percent or so which is originally processed by adopting the traditional technology to 20 to 30 percent, and the original flavor and sweet taste of the golden thread preserved dates are not affected; furthermore, as the permeation pressure of the ethroglucin is high, sugar-permeating time is greatly reduced, process is simplified and cost is reduced; in addition, the ethroglucin does not have the Maillard reaction of reducing sugar, therefore, in the process of saccharigying, the color change of the Chinese dates is small, and the products have light color and luster and better condition.

A jujube fruit cracking prevention method aims to achieve the purposes of good simplicity and convenience and high practicability, can be easily accepted by peasants and can effectively lower the jujube cracking rate in autumn. The method comprises the following steps: at the early stage of blooming of jujube trees, within 15 days after start of the early flowering season, a flower thinning agent is sprayed to the jujube flowers to thin off the early flowers, so that the late flowers are fruitful; accordingly, the fruit development time is put off by about 10-15 days, and the probability of sliding over the rainy days in the later period of fruit development is higher; from the intermediate stage of fruit development, whether to water the jujube trees or not is determined according to the soil moisture content every day to enable the rhizosphere soil moisture to be kept 60-80% of the field maximum moisture capacity till the last ten days of September, so that the demand for normal jujube fruit development on moisture can be satisfied.

A method for producing the Se-enriched jujube includes preparing the composite selenium solution from Se (3-7 portions), the Fe, Zn, Mg, Ca, Mo, B, Cu and Mn (1-5 portions for each), the N, P and K (5-100 portions of each) and water (1000 portions) through mixing, diluting with water, and spraying it on the leaves of jujube tree in different growth stages of jujube fruit. Its advantage is high effect to enrich Se in jujube fruit and prevent erosion of jujube fruit.

The present invention relates to a drying process of Chinese jinsi small jujube and its special-purpose drying room. Said drying process includes the following several stages: preparation stage, making ignition and slowly-heating to 45-48deg.C; moisture-discharging and evaporation stage, when the air moisture is reached to 70%, starting natural ventilation to discharge moisture for above three times until the air moisture is reduced to 55%; moisture equilibrium stage; stopping heating and making internal water content and external water content of said jujube fruit be reached to internal and external equilibrium, when its water content is reached to 20%-30%, taking out the small jujube from drying room and drying in the air. Said special-purpose drying room includes two furnace cavities, fire channel, smoke flue and chimney, etc.

The invention discloses red jujube sparkling wine and a production process thereof. The red jujube sparkling wine is prepared by taking red jujubes as raw materials through processes, i.e. sorting, cleaning, baking, fire-curing, extraction, liquid state fermentation, semi-solid state fermentation, accelerating aging, preservation, blending, ageing, gas loading, encapsulation, and the like. In the invention, the baking and the peat fire-curing can increase fragrance and the content of phenols; the alcohol extraction is beneficial to the extraction of nutrient substances, i.e. alcohol-soluble effective components of the red jujubes, jujube peel pigments, and the like; adsorption treatment removes impurities causing bad flavor, therefore the fragrance and the flavor of the red jujube sparkling wine are greatly improved; jujube hulls and liquid state fermentation sediments are mixed for fermentation to sufficiently utilize red jujube resources, therefore the cost is saved and economic benefit is enhanced, but also environmental pollution is prevented; and the red jujube sparkling wine is mature, refined and mild through the preservation, the blending and the ageing. The obtained red jujube sparkling wine is clear and transparent, has strong fruity flavor, moderate sour and sweet flavor, exquisite foam, refreshing and pleasant taste and specific style of red jujube fruit wine.

The invention discloses a multi-effect skin care composition, essence and a preparation method of the essence. The skin care composition includes the following components, in percentages by mass: 1 to2.5% of a natural extract, 0.1 to 0.5% of a yeast extract, 0.1 to 0.5% of polypeptide, and the balance of a substrate, wherein the natural extract is one or more selected from the group consisting ofpaeonia albiflora root, rosa canina fruit, origanum majorana leaf, rubus suavissimus leaf, leontopodium alpinum, ginkgo biloba leaf, rhodiola rosea, panax ginseng root, scutellaria baicalensis root,polygonum cuspidatum root, ledebouriella divaricata root, zizyphus jujuba fruit, citrus limonum, schizandra chinensis fruit, morus alba bark, tremella fuciformis, chamomilla recutita flower, centellaasiatica, melissa officinalis and salix alba bark. The plurality of natural extracts in the multi-effect skin care composition provided by the invention have the functions of moisturizing, anti-inflammatory and repairing cells; and the composition also contains the polypeptide and the yeast extract liquid, multiple active ingredients are compounded to repair damaged cells while keeping moisture and supplementing water, removes free radicals in skin, provides nutrient substances to the skin, and can restore the skin to an elastic and delicate state.

The invention discloses special anti-fruit-cracking fertilizer for jujube trees. The special anti-fruit-cracking fertilizer is prepared from the following raw materials in parts by weight: 42 to 46 parts of sesame meal, 25 to 26 parts of wheat bran, 3 to 4 parts of ferric sodium ethylene diamine tetraacetate, 0.6 to 0.8 part of manganese sulfate, 6 to 7 parts of ammonium sulfate, 1 to 2 parts of calcium gluconate, 1 to 2 parts of bone glue, 3 to 4 parts of attapulgite powder, 24 to 26 parts of corn protein powder, 0.5 to 0.6 part of acrylamide, 0.1 to 0.2 part of maleic anhydride, 0.4 to 0.5 part of ammonium persulfate, 16 to 17 parts of chitosan, 0.6 to 0.7 part of nano zero-valent iron, 0.1 to 0.2 part of epichlorohydrin, a proper amount of 0.5 percent acetic acid solution, a proper amount of 0.5mol / L sodium hydroxide solution and a proper amount of water. According to the special anti-fruit-cracking fertilizer for the jujube trees, disclosed by the invention, fertilizer nutrients are supplied in a balanced manner; the ferric sodium ethylene diamine tetraacetate, the manganese sulfate and the like are utilized so that the requirements of jujube pericarps on microelements can be met; meanwhile, organic calcium salt including the calcium gluconate and the like are added so that the cell toughness of jujube fruits and pericarps can be enhanced; furthermore, the integrity of the pericarps is ensured and the aim of preventing fruit cracking is realized.

The present invention provides a sweetening method for the fruit of Taiwan green jujube, and comprises the deep fertilizer application of Taiwan green jujube and the nutrient fluid spraying on the leaves. Through applying and spraying the magnesium fertilizer at the growth stage, applying and spraying the boric fertilizer during the period from the flowering stage to the fruit-picking stage, and spraying the nutrient fluid during the enlargement stage of the fruit, the present invention provides sufficient fertilizer and water for Taiwan green jujube, thereby reducing the leaf-falling phenomenon, guaranteeing sufficient photosynthesis, effectively improving the content of the soluble solid object in the fruit and greatly increasing the sweetness of the fruit; using pro-soil active biological bacteria or the humic acid, the fixed nutrient element in the soil can be renewable. Using the organic amino acid nutrient fluid fertilizer to spray the leaves, the sufficient supply of the organic matter is effectively maintained in the soil, thereby resolving the problem of improving the sweetness of Taiwan green jujube in the prior art, satisfying the requirement of the consumer and obviously increasing the economic benefit of the fruit garden.

The invention relates to a method for manufacturing wild jujube tea. Wild jujube is a medicinal plant capable of soothing the nerves. Wild jujube fruits are used to prepare medicaments; the pits of the wild jujube fruits are dry mature seeds of the wild jujube and can be used for treating panasthenia, insomnia, dreaminess, night sweat, virtual trouble and sleepless, palpitation with fear, thirsty and insufficient body fluid, body weakness and hyperhidrosis, and the like. As the wild jujube fruits have small pits, the yield of wild jujube pits is low. As a result, the market price of the wild jujube pits has been high in recent years. The method for manufacturing the wild jujube tea comprises: 1, a step of picking wild jujube juvenile leaves, which is to pick up 1 to 3 centimeter newborn wild jujube juvenile leaves; 2, a step of spreading and drying the picked wild jujube juvenile leaves in the air and removing impurities, which is to spread and dry the picked wild jujube juvenile leaves in the air in a shady place for 1 to 2 hours; 3, a step of removing green, which is to place the wild jujube juvenile leaves which are well spread and dried in a green removing machine to remove green at 130 to 150 DEG C for 5 minutes; 4, a step of twisting, which is to twist the hot wild jujube juvenile leaves for 10 minutes after green killing; 5, drying, which is to dry the twisted wild jujube juvenile leaves at 60 to 80 DEG C; and 6, a step of spreading and drying the dried wild jujube juvenile leaves in the air, which is to spread and dry the dried wild jujube juvenile leaves which are at a high temperature to room temperature in the air in a dry place.

The invention relates to a high-adhesion jujube fruit shrink disease resisting emulsion and a preparation method of the emulsion. The high-adhesion jujube fruit shrink disease resisting emulsion comprises effective constituents (streptomycin, instant boron, berberine), adhesives (chitosan, sodium carboxymethyl cellulose (CMC-NA)-glycerin) and an emulsifier (tween 80). The preparation method comprises the following steps: mixing 1-4% of a chitosan solution (acetic acid solution) with 1% of a sodium carboxymethyl cellulose-glycerin solution according to the ratio of 1:(3-5) to prepare a high-viscosity solution, adding the effective constituents (according to that the ratio of streptomycin to instant boron to berberine is (2-4):(2-4):1) in the high-viscosity solution, then mixing the mixed solution with the emulsifier, dissolving at an ultrasonic condition, heating in water bath and stirring, at last obtaining the emulsion. The emulsion can strongly inhibit the jujube fruit shrink disease, aims to achieve high adhesion, rain-wash resistance, as well as toxic-free and environment-friendly effects, and has the advantages of stability, high efficiency and low cost.

The invention discloses a method for planting selenium-rich and SOD-rich jujube trees. The method comprises the following steps that 1, neutral alkali rich soil with sufficient lighting and even rainwater is selected as a site; 2, planting is carried out, wherein holes are dug every 1.5 m to 2.5 m, the distance between every two rows of saplings is controlled to range from 2 m to 3.5 m, and jujube tree seedlings with the height of 1 m to 3 m are planted; 3, nursery garden nursing is carried out, wherein weeds, miscellaneous trees and sundries on planting land and ridges are removed; 4, watering maintaining is carried out, wherein watering is carried out once every other 10 days, and watering is continuously carried out 3-6 times till the jujube tree survive; 5, the selenium-rich and SOD-rich jujube trees are cultivated, wherein nutritional factors are sprayed to the jujube trees in the growing period of the jujube trees; 6, picking is carried out, wherein after jujubes are mature, a manual picking method is adopted, jujube fruits are held with the hand, force is slightly applied in the direction opposite to the bending direction of fruit stems, and the jujube fruits naturally fall off. According to the planted jujube trees, after SOD enzymes are sprayed, the SOD average enzyme activity of each gram of jujube fruits is remarkably increased, the selenium content is obviously increased, and the effect of improving the nutritional value of the jujube fruits is very remarkable.

The invention provides a technological process for extracting flavone from jujube fruits. The process is finished in the following steps of: (1) first, washing, drying and crushing the jujube fruits to obtain jujube fruit powder; (2) carrying out ethanol extraction, ultrasonic wall breaking technology and microwave-assisted extraction on the crushed jujube fruit powder; (3) carrying out biological enzyme hydrolysis on waste slag obtained in the step (2) to obtain soluble dietary fiber and decompressing and concentrating a filter liquor; (4) purifying the decompressed and concentrated filter liquor by using a macroporous adsorption resin to obtain a concentrated solution with pH value of 4; and (5) freezing and drying the concentrated solution to obtain jujube flavone. The technological process for extracting flavone from jujube fruits, provided by the invention, has the following advantages that: (1) short production time, low operation cost and small energy usage are obtained; (2) the purity of the extracted flavone can reach more than 45% and the yield of the flavone is no less than 80%; and (3) the jujube fruit waste slag after the flavone is extracted can be hydrolyzed by biological enzyme to obtain the dietary fiber with wide purposes so that the comprehensive utilization rate of the jujube fruit is increased.

The invention discloses a Chinese jujube fruit crack proofing cover. The crack proofing cover comprises a rack which can cover a crown of a Chinese jujube tree, a transparent layer which is arranged outside the rack and has an airtight top, a plurality of lines of vent holes which are distributed around the transparent layer, sheltering layers which are arranged outside the transparent layer and above each line of the vent holes. One end of the sheltering layer is fixed with the transparent layer above the vent holes and the other end is hung in the air so that air in the transparent layer can be discharged; and bottom of the transparent is provided with a pulling line. The Chinese jujube fruit crack proofing cover has functions of rain sheltering and ventilating. Experiment proves that the Chinese jujube fruit crack proofing cover can be used in rainy days for preventing raindrops from directly wetting the jujubes and preventing cracking of red jujubes, thus playing a role of reducing fruit cracking loss. The Chinese jujube fruit crack proofing cover has the advantages of simple manufacture, convenient use and low cost, and can obviously relieve the original status that fruit cracking occurs after 3 rainy days, yield decreases by a half after 10 rainy days and no fruit is harvested after 15 rainy days.

The invention relates to a natural plant fertilizer and a preparation method thereof. The fertilizer comprises the following components in parts by weight: 40-60 parts of lacquer tree fruit, 7.5-10 parts of soapberry fruit, 12.5-20 parts of wild jujube fruit, 30-60 parts of cake-shaped rape seed dregs, 30-60 parts of tung oil cake, 20-40 parts of phosphorus fertilizer and 95-180 parts of or 4000-4500 parts of liquid dung of people and livestock. With the adoption of the fertilizer, the chemical fertilizer can be replaced or the dosage of the chemical fertilizer can be reduced, crops can grow lushly, and the yield of the crops can be greatly increased; and in addition, the fertilizer further has the advantages that the fertilizer effective period is long, the soil does not generate harden phenomenon and the side and toxic effects are avoided.

A fruit-cracking preventing method for jun jujube cultivated in a drought desert oasis in a dwarf compact planting mode comprises the following steps of jujube garden mesh coverage, (2) jujube garden ground surface coverage, and (3) leaf surface fertilizer supplementation in the fruit developmental phase. By means of the fruit-cracking preventing method, the changes of the temperature and the humidity of a jujube garden are effectively controlled, dew formation on the surfaces of the jun jujube fruits is avoided, the photosynthetically active radiation of the jujube garden in the hottest month is properly lowered, the photosynthesis of leaves is enhanced, it is promoted that the jujube flesh tissue is compactly developed, the fruit cracking degree of the jun jujube is relieved through control over the two aspects of the internal cause and the external cause, so that the occurrence of black spots and rot of the jujube fruits is reduced, the purpose of increasing the high-quality fruit rate is achieved, and great significance is achieved on the healthy and sustainable development of the red jujube industrial in Sinkiang.

The invention discloses an instant wild jujube total nutrient fruit powder and a production process thereof. Fresh wild jujube fruits are pulped by virtue of a pulping machine, filtering and separation are carried out, thus obtaining wild jujube nutlet powder, wild jujube residue powder and wild jujube pulp; mixing, high pressure homogenizing and vacuum low temperature drying are carried out, thus obtaining a nutrient fruit powder, wherein moisture content is less than or equal to 13%, reducing sugar content is more than or equal to 20%, organic acid content is more than or equal to 10g / Kg and protein content is more than or equal to 2% by weight percent. Nutrient fruit powder prepared by the production process of the invention remains all the nutrients in wild jujube nutlet, wild jujube residue and wild jujube pulp, thus ensuring dietary fiber, polyphenols and vitamin C in the fruit powder to be effectively remained and effectively guaranteeing instant effect, palatability and pleasure property of the fruit powder. No food additive such as essence and sweetener or auxiliary material is added in the whole process, thus being a natural total nutrient fruit powder.

The invention provides a plant regulator for promoting the healing of jujube girdling cut, pertaining to the technical field of plant growth regulator and being to solve the problems of bad and slow healing effect of the prior consolidant for jujube girdling cut and affecting on jujube fruit quality. The invention comprises 6-benzyl aminopurine of 4.0-8.0 percent, alpha-naphthylacetic acid of 4.0-6.6 percent, synergist of 0.2-0.8 percent and proper amount of sodium hydroxide and hydrochloride. The invention has remarkable effect and enables the girdling cut of the jujube to heal in time and promote the growth of the jujube and is applicable as plant regulator for the healing cut as well as regulator and graft promoter for the healing of cut, hurt and damage of fruit trees and other trees.

The invention discloses a method for synchronously preventing and controlling fruit cracking and a fruit shrinking disease of ziziphus jujuba mill, namely, key mineral element supplementation, chemical prevention and growth regulator application are combined. The method is characterized in that soil fertilization is carried out by mixing potassium sulfate and manganese sulfate according to a certain proportion, and sodium silicate and calcium chloride are sprayed on leaves, so that key mineral elements and beneficial elements can be effectively supplemented, nutrient balance can be regulated, and the resistance is increased; 6-BA (Benzyladenine) is sprayed on the leaves in an early stage, so that pericarpic cell division is stimulated, and elasticity of jujube peel is enhanced; NAA (Naphthalene Acetic Acid) is sprayed in a later stage, so that maturing of jujube fruits is delayed, and a cloudy and rainy period in the early of mid September is avoided; mancozeb is sprayed on the leaves, so that pathogenic bacteria on body surface can be effectively killed, a layer of dense protective medicine membrane is formed on the surface of crop, and germination and invasion of the pathogenic bacteria are inhibited. According to the method disclosed by the invention, the morbidity of the fruit cracking and the fruit shrinking disease of the ziziphus jujuba mill can be synchronously and obviously reduced, and a total diseased fruit rate can be reduced from 80 to 100 percent to 20 percent or less. A technology is applied to prevention and control of the fruit cracking and the fruit shrinking disease of the ziziphus jujuba mill, the method is simple, the cost is low, the prevention and control efficiency is high, and the effect is lasting.

The invention discloses a jujube fruit healthcare food, which is prepared by the following raw materials in parts by weight: 2-5 parts of red jujube, 1-3 parts of mung bean, 1-3 parts of peanut kernel, 1-3 parts of sticky rice, 1-3 parts of soybean, 1-2 parts of medlar and 1-2 parts of chestnut kernel. The healthcare food of the invention provides most nutrition constituents required by a human body, the nutrients taken in by the human body are more balanced and reasonable, and the goal of optimizing the dietary structure of people is really reached. Moreover, the function of effectively benefiting organs of the human body is obtained when the raw materials are used jointly, the body constituent can be obviously improved and the effects of decreasing fat, decreasing pressure, restoring consciousness and refreshing spirits are obtained. The invention has the advantages that the applicable people are wide, the healthcare food is good for both children and adults and the price is low.

The invention relates to an electric jujube picking machine. The machine comprises a roller, wherein the roller is provided with a rubber stripe; the roller is arranged in a protective shell in a rolling way; the protective shell is arranged on a rack; the rack is provided with a micromotor; the micromotor is connected with the roller through a driving device; the rack is arranged on a support rod; a power cord connected with the micromotor is arranged in the support rod; and the power cord is connected with a storage battery. The electric jujube picking machine has a simple structure, is convenient to use, greatly reduces the labor intensity of jujube farmers, and improves the harvesting efficiency of jujube fruits, wherein the harvesting efficiency is 8 to 10 times that of manual picking.

The invention discloses a preparation method of red dates chip. The method comprises the following steps: 1) raw material treatment; 2) beating; 3) sizing; 4) starch gelatinization; 5) starch aging; 6) hot wind drying; and 7) microwave puffing drying. The preparation method of the red dates chip provided by the invention has the following advantages: red dates slurry is added with starch and subjected to microwave puffing to obtain a non-fried recombinant red dates chip with good formability and sensory quality; the method has great significance for development and utilization of fallen red dates and inferior red dates; cooking gelatinization and low-temperature rapid aging can effectively remove water in blank, so as to improve taste, brittleness and comprehensive sensory quality of the red dates chip; the red dates chip product can be prepared into a variety of shapes, has crispy taste, rich red dates flavor, dark red color, uniform and fine surface, good puffing effect and promising market prospect; the process has low energy consumption and high drying efficiency; and different dried fruits and nutlets are added in the sizing process to improve nutritional characteristics of a finished product of red dates chip.

The present invention relates to a method to prevent and cure bacterial disease after picking up for winter jujube (Dongzao) fruit, which is characterized in dealing with winter jujube with acid solution before storage or preserving on shelf. Based on responsive of pathogenic bacteria to acid environment, the method controls appear of disease of winter jujube fruit by changing its pH value. After treatment using acid solution for winter jujube fruit, acid component will be metabolized gradually, which improves rate of sugar to acid, quality and flavor.

The invention discloses a preparation method of jujube fruit residue dietary fiber. The jujube fruit residue dietary fiber is prepared by adopting jujube fruit residues after red dates are juiced as raw materials, micro-grinding the raw materials through a high shear wet method, adding cellulase and xylanase for composite enzymatic hydrolysis, concentrating and drying the product. The invention provides a recycling method of jujube fruit residues as a by-product during the processing of red dates; by adopting the method, not only is the additional value of red dates improved, but also the discharge pressure of the jujube fruit residues to the environment is reduced.

The invention discloses a detection method and device for internal defects of jujube fruits on the basis of visible / near-infrared spectrum. The detection method comprises the following steps of: (R1)sample preparation and spectrum information acquisition; (R2) establishment of a judgment model for the internal defects of the jujube fruits: adopting a model with the highest accuracy in judging theinternal defects of the jujube fruits as an optimum judgment model; (R3) using the optimum judgment model to judge the internal defects of the jujube fruits to be detected; (R4) recurrence of the internal defects of the jujube fruits to be detected. Proved by experiments, the detection method for the internal defects of the jujube fruits on the basis of the visible / near-infrared spectrum providedby the invention has the beneficial effects that the judgment accuracy for the internal defects of the jujube fruits can reach 96.77%; by acquisition of the visible / near-infrared spectrum informationof the jujube fruits, the judgment model for the internal defects of the jujube fruits is established for detecting the internal defects of the jujube fruits; the detection method and device have thecharacteristics of fastness and no damage.

The invention discloses a fruit ripening retardant for jujube, and the fruit ripening retardant comprise the following raw materials in parts by weight: 0.5-0.9 part of gibberellin, 0.2-0.4 part of 6-benzyladenine, 0.7-1.0 part of rhodofix, 11-15 parts of urea, 6-10 parts of sodium borate, 3-6 parts of copper chloride, 5-8 parts of iron chloride, 6-8 parts of manganese chloride, 5-7 parts of zinc chloride, 10-15 parts of ethanol and 1000 parts of pure water. The preparation disclosed by the invention is prepared by firstly dissolving the gibberellin with the ethanol, then sequentially adding the 6-benzyladenine and the rhodofix, uniformly stirring, then completely pouring into the pure water, then adding the urea, the sodium borate, the copper chloride, the iron chloride, the manganese chloride and the zinc chloride into the pure water, fully stirring and uniformly mixing. By applying a solution of the preparation disclosed by the invention, which is diluted by 10-20 times on jujube fruits during the white-mature period, compared with a control group, the fruit ripening can be delayed by 18 days, the cracking fruit rate can be reduced by above 32%, the incidence rate of black spots is reduced by above 25%, and the content of soluble sugar of the jujube fruits and the single fruit weight can be further significantly improved.

The invention relates to a jujube tree cultivation management method suitable for multi-fruit bagging. A method of applying fruit-bearing agent, snapping jujube tree heads, pruning secondary branches on the back, reserving obliquely growing secondary branches, applying flower thinner and conducting bagging is adopted to improve the fruit bearing rate of a jujube tree, to prevent jujube fruits from being infected by diseases and insects and being cracked and to realize the fruit-crack-free, disease-and-insect-free, high-quality and high-yield cultivation of the jujube trees.