52results about How to "Reduce bad fruit rate" patented technology

The invention discloses a mango water retention sterilization filming liquid which consists of shellac, glycerol monostearate, sodium carbonate, enestroburin, amino oxyl acetic acid and a solvent, wherein the mass concentration of shellac is 15-20%, the mass concentration of glycerol monostearate is 0.1-0.2%, the mass concentration of sodium carbonate is 0.3-0.5%, the mass concentration of enestroburin is 0.003-0.006% and the mass concentration of amino oxyl acetic acid is 0.001-0.002%. Through the adoption of the mango water retention sterilization filming liquid, the freshness cost is lowered, no cold tolerance pathogenic bacterium is generated, inspiration of mango and growth of bacteria on the surface of mango are inhibited, and rot is prevented. The water retention sterilization filming liquid is good in stability, the mango is not deteriorated after being preserved for half a year, the surface of the mango can be smooth and fresh by using the water retention sterilization filming liquid, the fruit rot rate is less than 3% after 100 days, the driage is less than 12%, and the taste is kept fresh.

The invention discloses a nondestructive stem-removal picking bionic gecko distinguishable pick-up and screening vehicle of a crabapple and belongs to the technical field of crabapple picking machines. The vehicle comprises a light moving mechanism, a flexible fruit stem clamping and nondestructive conveying picking mechanism, an extension steering device, a nondestructive protection stem-removaldevice, a simulating gecko foot bristle distinguishable pick-up delivery mechanism, a turnover cleaning purification mechanism and a rotary sliding-down screening mechanism, wherein the turnover cleaning purification mechanism, the extension steering device and the rotary sliding-down screening mechanism are arranged on the light moving mechanism; the simulating gecko foot bristle distinguishablepick-up delivery mechanism is arranged at the front end of the turnover cleaning purification mechanism and the light moving mechanism; the flexible fruit stem clamping and nondestructive conveying picking mechanism is arranged on the extension steering device; and the nondestructive protection stem-removal device is arranged on the flexible fruit stem clamping and nondestructive conveying pickingmechanism. The nondestructive stem-removal picking bionic gecko distinguishable pick-up and screening vehicle of the crabapple achieves dislocation stirring for nondestructive picking, absorption pick-up, nondestructive cleaning and roll screening.

The invention belongs to the technical field of microbial fermentation, specifically belongs to the technical field of microbial decomposing, in particular relates to a strain which produces diversified enzymes with high enzyme activity and good acid resistance, enables distillers' grains to warm quickly and keep high temperature for a long time, and decomposes the distillers' grains completely, and relates to application of the strain. The strain is (Saccharomycopsis fibuligera)Y-1, and the preservation number is CGMCC No. 15255. The activity of an alpha-amylase produced by the strain is 2.56times higher than the currently known highest enzyme activity (7425.4 U / g); at the same time, the strain has the ability of producing glucoamylase, cellulase (CMC enzyme), cellulase (FPA enzyme), neutral protease, acid protease, lipase and other 7 enzymes, can produce diversified enzymes with high enzyme activity, and is applied to a microbial agent for fast decomposing to quickly and thoroughlydecompose the distillers' grains.

The invention discloses a plant-source fresh medlar preservative. Effective components of the prepared plant-source fresh medlar preservative are composed of following raw materials: 0.2%-0.5% of a lotus leaf extractive, 0.5%-0.8% of water-soluble starch, 0.5%-0.8% of konjak gulcomannan, 0.2%-0.5% of sodium alginate, 0.5%-1% of CaCl2, 0.5%-1% of glycerol, 0.2%-0.5% of an emulsifying agent, 0.5%-1% of a solvent and the balance being water. The plant-source fresh medlar preservative has a good preservation effect; the preservative is blended with water to be used for coating, has a very good inhibition effect on pathogenic bacteria which easily appear in a storage process after fruits and vegetables are harvested, and also has a certain inhibition effect on postharvest rotting of medlar; the plant-source fresh medlar preservative has a very good preservation effect on the harvested medlar; the processing process is simple and the cost is low; the developing direction of a current preservative is met and the plant-source fresh medlar fruit preservative has a very good development and application potential.

The invention discloses a fructus momordicae preservative which is prepared from lac, glycerol monostearate, penthiopyrad and alpha-aminoisobutyric acid, wherein the mass percent of the glycerol monostearate is 5-7%, the mass percent of the penthiopyrad is 0.01-0.03%, and the mass percent of the alpha-aminoisobutyric acid is 0.1-0.01%. The application method comprises the following steps: dissolving the fructus momordicae preservative in ethanol, diluting with water, and carrying out dip coating on the fructus momordicae in the obtained dilute solution to obtain a film. The preservative can lower the preservation cost, does not generate cold-resistant pathogens, and can inhibit the fructus momordicae root rot from growth. By using the preservative, the fructus momordicae has smooth surface; and after 100 days, the rotting rate is less than 3%, and the water loss is less than 15%.

The invention discloses the application of athomin to fruit and vegetable freshness preservation. According to the application, athomin serves as the main ingredient, addition agents are added, and emulsion in water or a soluble liquid preparation or a microcapsule preparation is prepared; a preparation is prepared from 1%-20% of athomin extract, 0.1%-2% of chitosan oligosaccharide, the various addition agents and the balance water, wherein all raw materials sum up to 100%. Fruit and vegetable plant source preservative prepared through the method is good in freshness preservation effect, the preservative is applied through water blending and coating, pathogenic bacteria easy to appear in the storage process after fruits and vegetables are harvested can be well inhibited, the harvested fruits and vegetables can be inhibited from decaying to a certain degree, the freshness of the harvested fruits and vegetables can be well preserved, the processing technology is simple, the cost is low, the preservative conforms to the current preservative development direction, and good development and application potentiality is achieved.

The invention relates to bio-organic fertilizer prepared from distillers' grains as well as a preparation method and application of the bio-organic fertilizer, belonging to the technical field of bio-organic fertilizer. The preparation method of the bio-organic fertilizer prepared from the distillers' grains comprises the steps of adding one-thousandth biochemical potassium fulvate into decomposeddistillers' grains, evenly mixing, crushing the mixing by using a semi-wet material crusher, sieving with a 3-4mm rotary screen, then adding 5% jelly-like bacillus subtilis powder (living bacterium quantity: 10<9>cfu / g), 5% bacillus megaterium powder (living bacterium quantity: 10<10>cfu / g) and five-thousandth bacillus amyloliquefaciens powder (living bacterium quantity: 10<11>cfu / g). The decomposed distillers' grains microbial agent contains a preserved strain, i.e., saccharomycopsis fibuligera Y-1, and the preservation number of the preserved strain is China General Microbiological CultureCollection Center (CGMCC) No. 15255. The bio-organic fertilizer prepared from the distillers' grains can be used for various crops, is especially applied to winter jujubes, and can significantly improve the sizes, yield and quality of the fruits of the winter jujubes.

The invention provides a separation process of camellia hull and seed and a camellia hull and seed separator. A sorting bush-hook is used to sort camellia hulls among camellia mixed hull and seed on a transporter, the camellia hulls are hooked by the rotating sorting bush-hook, and the camellia hulls are separated from the sorting bush-hook by using a hulling board and then fall on the hulling board; the transporter with gaps on a delivery element is adopted to transport the camellia mixed hull and seed, and the tiny camellia hulls, lesion and withered camellia seeds and other impurities drop out through the gaps. The separation process of camellia hull and seed can be carried out simultaneously during transportation of camellia mixed hull and seed, and has the advantages that the separating efficiency is high; the hull and seed separating result is good; the rate of hull in camellia seeds is lower than 3%, the rate of seed (normal camellia seed) in hulls is lower than 2%; the obtained camellia seed particles are uniform; the scale industrial production is suitable; the structure of camellia hull and seed separator is simple; the setting of controller and complex circuit structures and the like is not required; the equipment cost is low; the operation is safe and convenient; the work is stable.

The invention belongs to the technical field of fruit storage, and particularly relates to a grape fresh keeping method. The method comprises the following steps of (1) pretreatment: pruning grape spike-stalks from the root to the first forficate part; sealing cut by wax; (2) sterilization treatment: using sulfur dioxide with the dosage being 200ppm for fumigation for 12h; killing pathogenic bacteria carried by grapes; (3) preservative application: putting the grapes treated in the step (2) into a preservative with the temperature being 8 to 10 DEG C; performing soaking for 5 to 10 minutes; then, taking out the grapes for draining off the preservative at the surface; placing the grapes in a cool and ventilated place for dying; (4) storage management: charging the grapes treated in the step(3) into fresh keeping bags; performing opening tying, wherein air holes are formed in the fresh keeping bags; then, placing the grapes in a storage chamber; introducing fresh keeping air into the storage chamber; maintaining the temperature of the storage chamber to be 0 to 1 DEG C; maintaining the humidity of the storage chamber to be 88 percent to 92 percent. When the fresh keeping method is used for performing storage and fresh keeping on the grapes, the grape fresh keeping effect is obviously improved; the grape fresh keeping period is prolonged.

The invention discloses a siraitia grosvenori preservation filming liquid which consists of shellac, glycerol monostearate, tea saponin, penthiopyrad and alpha-amino isobutyric acid, wherein the mass concentration of shellac is 7-10%, the mass concentration of tea saponin is 0.3-0.5%, the mass concentration of penthiopyrad is 0.001-0.004%, and the mass concentration of alpha-amino isobutyric acid is 0.01-0.001%. Through the adoption of the preservative, the freshness cost is lowered, no cold tolerance pathogenic bacterium is generated, growth of bacteria on the surface of siraitia grosvenori is inhibited, and rot is prevented. The surface of the siraitia grosvenori can be smooth and fresh by using the siraitia grosvenori preservation filming liquid, the fruit rot rate is less than 2% after 100 days, and the driage is less than 20%.

The invention discloses a litchi fresh-keeping method, and belongs to the technical field of storage and fresh-keeping of fruits and vegetables. The litchi fresh-keeping method comprises the following steps: soaking cleaned litchis in Sportak, then performing soaking in sodium nitroprusside, spraying a vegetable gum solution on the surfaces of the litchis, then carrying out heat treatment, and storing the litchis in a low-temperature closed environment. According to the fresh-keeping method, the low-temperature storage time of the litchis is prolonged to the maximum extent, loss of moisture of the litchis is reduced, generation of malonaldehyde and hydrogen peroxide in the litchis is reduced, the activity of superoxide dismutase in the litchis is improved, rotting and browning of the litchis are effectively prevented, the fresh-keeping effect is good, chemical substances such as sulfur are not contained, the preserved litchis are good in taste, green and environment-friendly, and the preservation process is simple and easy to popularize.

The invention discloses a siraitia grosvenori water retention sterilization filming liquid which consists of shellac, glycerol monostearate, sodium carbonate, tea saponin, fluopyram, alpha-amino isobutyric acid and a solvent, wherein the mass concentration of shellac is 15-20%, the mass concentration of glycerol monostearate is 0.1-0.2%, the mass concentration of sodium carbonate is 0.3-0.5%, the mass concentration of tea saponin is 0.001-0.004%, the mass concentration of fluopyram is 0.006-0.008%, and the mass concentration of alpha-amino isobutyric acid is 0.01-0.001%. Through the adoption of the liquid, the freshness cost is lowered, no cold tolerance pathogenic bacterium is generated, growth of bacteria on the surface of siraitia grosvenori is inhibited, and rot is prevented. The water retention sterilization filming liquid is good in stability, the siraitia grosvenori is not deteriorated after being preserved for half a year, the surface of the siraitia grosvenori can be smooth and fresh, the fruit rot rate is less than 2% after 100 days, and the driage is less than 20%.

The invention relates to a waxberry planting method, comprising the steps of (1) raising seedlings; (2) selecting a site; (3) preparing the land; (4) performing field planting; (5) performing post-planting management; (6) thinning flowers and fruits; (7) managing fertilization. The waxberry planting method has the advantages that base fertilizer is applied layer by layer according to growth habitsof waxberry in conjunction with fertilizer-absorbing ability of roots of waxberry; special waxberry compound fertilize and organic compound fertilizer are prepared, ensuring sufficient fertilizer demand and fertility duration; growth vigor of waxberry is ensured, fruit-bearing percentage is high, and the yield is high; percentage of bad fruit is low, the fruits are big and full, the taste is wellimproved, and the quality is improved.

The invention discloses a fruit picking device for agriculture and forestry. The fruit picking device comprises an assembling plate, wherein a bearing plate is hinged to the top of the surface of theright side of the assembling plate. The invention relates to the field of garden landscape equipment. According to the fruit picking device for agriculture and forestry and a using method of the fruitpicking device, reciprocating motion of a pull rod on the inner side of a sliding rail is achieved through electric turbine worm transmission of a shaking vibration motor, fruit tree branches are driven to shake through pulling motion of the pull rod, the fruit falling effect is achieved, and the picking efficiency is greatly improved. The positions of a collecting device and a shaking device canbe adjusted through a telescopic rod, the device can be conveniently used in mountain forest regions with uneven terrains, a net bag can better surround the peripheral side of the fruit tree branches, influence of planting environment terrains is smaller, the collision effect is reduced through the net bag, and the fruit damage rate is greatly reduced. The problems that an existing fruit pickingmeans and picking equipment are low in operation efficiency and inconvenient to apply in mountain forest zones with uneven terrains, and the fruit falling and damaging rate after picking is high, aresolved.

The invention provides a traditional Chinese medicine anti-corrosion preservative as well as a preparation method and application thereof and relates to the field of preservatives. The traditional Chinese medicine anti-corrosion preservative is capable of solving the problems of odor, high price, and inedible property of an existing preservative containing chlorine ingredients. The traditional Chinese medicine anti-corrosion preservative provided by the invention comprises 15-35ml of clove volatile oil, 150-250ml of cassia bark volatile oil, 0.5-2g of chitosan, 5-15g of citric acid and 1000ml of an ethanol aqueous solution. Since being prepared from pure natural traditional Chinese medicines, the traditional Chinese medicine anti-corrosion preservative is non-toxic and harmless to a human body, free from any toxic and side effects and fragrant in smell, and can be eaten after being simply flushed without special cleaning. The traditional Chinese medicine anti-corrosion preservative is capable of favorably inhibiting growth of bacteria, prolonging the preservation period, achieving relatively long preservation time and effectively reducing the bad fruit rate of fruits and vegetables.

The invention discloses a mango preservation film coating agent which is prepared from lac, alpha-aminoisobutyric acid and a solvent, wherein the mass percent of the lac is 10-20%, and the mass percent of the alpha-aminoisobutyric acid is 0.01-0.001%. The preservation film coating agent is prepared by dissolving the lac in the ethanol, adding the alpha-aminoisobutyric acid and diluting with water. The preservation film coating agent can lower the preservation cost, and does not generate cold-resistant pathogens. By using the preservation film coating agent, the mango has smooth surface; and after 100 days, the rotting rate is less than 3%, and the water loss is less than 28%.

The invention discloses a drying preservation method of mangos and relates to the technical field of fruit preservation. The preservation method of the mangos includes the following steps: soaking the mangos in a mixed solution of perchloric acid and acetic acid for 5-10min, performing rinsing with clear water for one or two times, performing air-drying at a room temperature and removing rotten or damaged fruits; dissolving starch in ethyl alcohol, then adding potassium sorbate and sodium benzoate and performing dilution by adding water so as to obtain a coating agent for preservation, wherein the mass concentration of the starch is 15%-20%, and the mass concentration of the potassium sorbate is 1%-2% and the mass concentration of the sodium benzoate is 0.3%-0.5%; soaking the obtained mangos in the coating agent, performing dip-coating and performing air-drying till a thin film forms on the surface of each of the mangos; and spraying sodium polyacrylate solution with a concentration of 0.05%-0.1% on paper bags and air-drying the sprayed paper bags.

The invention discloses a passion fruit cultivating method. The passion fruit cultivating method comprises the following steps of (1) building a fruit shed: wherein the fruit shed consists of a plurality of rows of pergolas, and each row of the pergolas consists of a plurality of stand columns, first cross bars, second cross bars and creeping wires; (2) performing field planting on fruit seedlings: performing field planting on passion fruit seedlings near the stand columns, wherein the plant distance is 4-6cm; (3) performing main tendril cultivation: before passion fruit trunks creep the pergolas, removing lateral buds, reserving main buds for growth, and when the trunks reach the height of the creeping wires, performing development into two main tendrils; (4) combing bearing branches andtendrils: combing and trimming bearing branches and tendrils growing on the main tendrils, and inducing the bearing branches and tendrils; (5) trimming the bearing branches and tendrils: after ripe fruits on the bearing branches and tendrils are picked, trimming the bearing branches and tendrils, of which the flower forming capacity is reduced, from basal parts; and (6) continuously repeating thestep (4) and the step (5) to continuously induce formation of new bearing branches and tendrils. According to the cultivation method disclosed by the invention, the passion fruit main tendrils twine along the creeping wires, the bearing branches and tendrils bear fruits in a curtain falling manner along the creeping wires, passion fruit branches and leaves are not liable to overlap too much, daylighting is good, growth of passion fruits is facilitated, besides, the bad fruit rate is reduced, and picking is also facilitated.

The invention provides a heat shock and biological preservation combined preservation method, and relates to the technical field of fruit preservation. The heat shock and biological preservation combined preservation method comprises the following steps: spraying oranges with clear water, putting the oranges into high-temperature water of 52-53 DEG C for rotary heat shock treatment for 10-20s, then putting the oranges into a biological sterilizing agent of 22-25 DEG C for soaking, and finally taking out the oranges for airing and storing the oranges at 8-12 DEG C the heat shock and biologicalpreservation combined preservation method has the advantages that by combined use of heat shock and biological preservation, the preservation time of the oranges can be greatly prolonged, the bad fruit rate is reduced, residues caused by use of a chemical preservative are avoided, green fruits are really obtained, and meanwhile, the production cost is reduced.

The invention relates to the technical field of non-woven fabric fruit bag production, and discloses a production method of an antibacterial non-woven fabric fruit bag, and the method comprises the following steps: (1) extrusion treatment: polypropylene particles are pumped into an extruder to be heated and molten to prepare a molten raw material A; (2) spinning treatment, wherein the molten raw material A is sprayed out of tows B through a spinneret plate; (3) web forming treatment, wherein the tows are stretched and fall onto a web curtain of a web forming machine through a drafting fan to be laid into a fluffy net-shaped object C; (4) hot rolling treatment: placing the mesh C in a hot rolling mill for hot rolling forming to obtain a non-woven fabric D; (5) winding treatment: winding the non-woven fabric D on a paper tube to obtain a non-woven fabric roll E; and (6) bag making treatment, wherein the non-woven fabric roll E is put into a non-woven fabric bag making machine to be made into a non-woven fabric fruit bag. The non-woven fabric fruit bag is good in light transmission and air permeability, fruits are sweeter and more delicious, the fruits and the bag only need to be picked off together during harvesting, netting is not needed, labor intensity is reduced, and labor is saved.

The invention discloses a grape preservative. The preservative is prepared from the following raw materials in parts by weight: 50-100 parts of fructose, 10-20 parts of sodium hydroxide, 5-15 parts ofstearic acid, 10-20 parts of calcium chloride, 5-15 parts of citric acid, 3-10 parts of vitamin C, 3-10 parts of sodium hexametaphosphate, 3-10 parts of beta-aminobutyric acid, 3-10 parts of tartaricacid and 500-1000 parts of water. The preservative prepared by using the raw materials of the invention does not change the taste of grapes after being used, and fresh-keeping time is long. The preservative has good inhibiting effect on pathogenic bacteria, reduces bad fruit rate and spike-stalk browning index during grape storage, and does not cause harm to human health even if part of the preservative is used by human body.

The invention relates to the technical field of fruit and vegetable transportation, and discloses a fruit and vegetable long-distance transport box ventilation device and a ventilation method of the fruit and vegetable long-distance transport box ventilation device. The fruit and vegetable long-distance transport box ventilation device comprises a box body. A sealing plate is fixedly connected to the interior of the box body, an air bag I is fixedly connected to the top end of the sealing plate, and a telescopic plate is movably connected to one side of the air bag I. A rope is fixedly connected to one side of the telescopic plate, rotating shafts are connected to one side of the rope, and wind wheels are fixedly connected to the outer sides of the rotating shafts at equal angles. Splitter plates are fixedly connected to the top end of the box body, and groove plates are movably connected to the interiors of the splitter plates in a sleeved mode. By means of rotation of the rotating shaft and the wind wheels, pipe spray heads on an air bag II can repeatedly blow out airflow, meanwhile, magnetic blocks move along with the acceleration and deceleration process of transportation, the airflow disturbance effect is enhanced, the air on the surfaces of fruits and vegetables can be continuously disturbed, and therefore the surfaces of the fruits and vegetables can be continuously ventilated, the heat generated by the respiration of the fruits and vegetables is dissipated, the freshness degree of fruits and vegetables is improved, and the bad fruit rate is reduced.

The invention relates to a profiling tray for a vibration damping protection package of vulnerable fruits and a processing method thereof. Soft plastic foaming nets and hard plastic sheets are used asbase materials to prepare a composite sheet; a plurality of hemisphere concave pits in a profiling fruit shape and with the inner sides filled with the plastic foaming nets are processed on the composite sheet through a special thermal forming process; then the composite sheet is folded and locked integrally through an inserting type embedded structure; and accordingly the profile tray with multiple closed vibration damping protection structures is formed, and used for completely buffering and positioning the vulnerable fruits. The profiling tray can be continuously and automatically processed by one time through a production line. The profiling tray can reduce mechanical damage of the vulnerable fruits caused by outside force. A package structure is low in weight, can be folded, and facilitates transportation, storage and recycling. The vulnerable fruits can be stacked in multiple layers after being packaged, horizontal placing or vertical placing can be achieved, a customer can carry the vulnerable fruits conveniently, and inner matters can be displayed conveniently.

The invention discloses a mango preservative which is prepared from lac and alpha-aminoisobutyric acid, wherein the mass percent of the alpha-aminoisobutyric acid is 0.1-0.01%. The application method comprises the following steps: dissolving the mango preservative in ethanol, diluting with water, and carrying out dip coating on the mangos in the obtained dilute solution to obtain a film. By using the preservative, the preservation cost can be lowered, and the mango has smooth surface; and after 100 days, the rotting rate is less than 3%, and the water loss is less than 30%.

The invention discloses a fresh keeping agent for vitis vinifera. The fresh keeping agent comprises the following components in parts by weight: 15-20 parts of sodium erythorbate, 5-20 parts of sodium acetate, 10-35 parts of malic acid, 10-30 parts of lecithin, 5-25 parts of ferric pyrophosphate, 15-40 parts of sorbitol and 5-20 parts of kojic acid. The fresh keeping agent for vitis vinifera disclosed by the invention is good in long-term fresh keeping effects. Experiment prove that the fresh keeping agent has favorable effects of restraining various kinds of pathogenic bacteria in the storage process of the vitis vinifera, the bad fruit rate and the spike-stalk browning index in the storage process of the vitis vinifera can be obviously reduced, the advantages of commodity and the like of the vitis vinifera are maintained, and besides, the fresh keeping agent completely meets the requirements of food safety in China, is useful and harmless to human bodies and has favorable development and application potential.

The invention discloses a siraitia grosvenori preservative which consists of shellac, glycerol monostearate, tea saponin, penthiopyrad and alpha-amino isobutyric acid, wherein the mass concentration of shellac is 5-7%, the mass concentration of tea saponin is 0.02-0.05%, the mass concentration of penthiopyrad is 0.01-0.03%, and the mass concentration of alpha-amino isobutyric acid is 0.1-0.01%. When being used, the siraitia grosvenori preservative is firstly dissolved by using ethanol, and subsequently is diluted by water, and the siraitia grosvenori is soaked in the diluent so as to obtain a layer of film. Through the adoption of the preservative, the freshness cost is lowered, no cold tolerance pathogenic bacterium is generated, growth of bacteria on the surface of siraitia grosvenori is inhibited, and rot is prevented. The water retention sterilization filming liquid is good in stability, the siraitia grosvenori is not deteriorated after being preserved for half a year, the surface of the siraitia grosvenori can be smooth and fresh by using the siraitia grosvenori preservative, the fruit rot rate is less than 2% after 100 days, and the driage is less than 13%.

The invention discloses a Siraitia grosvenorii fresh-keeping film coating liquid, which consists of shellac, monoglyceride, sodium carbonate, tea saponin, penthiopyrad, alpha-aminoisobutyric acid and solvents. Specifically, the mass concentration of the shellac is 7-10%, the mass concentration of the monoglyceride is 0.1-0.2%, the mass concentration of the sodium carbonate is 0.3-0.5%, the mass concentration of the tea saponin is 0.001-0.004%, the mass concentration of the penthiopyrad is 0.001-0.005%, and the mass concentration of the alpha-aminoisobutyric acid is 0.01-0.001%. The Siraitia grosvenorii fresh-keeping film coating liquid provided by the invention can reduce the fresh-keeping cost, and does not produce cold resistant pathogenic bacteria, can inhibit the growth of Siraitia grosvenorii's surface pathogenic bacteria, and can prevent decay. The fresh-keeping film coating liquid has good stability, can be stored for six months and does not deteriorate. The fresh-keeping agent provided by the invention can make the Siraitia grosvenorii surface glossy and bright, and after 100 days, the bad fruit rate is less than 2%, and the water loss rate is less than 20%.