110results about "Fruit and vegetables preservation" patented technology

The embodiment of the invention discloses application of lactobacillus delbrueckii. The application is characterized in that the lactobacillus delbrueckii is applied to inhibition of mesophilic aerobic bacteria, saccharomycetes, mould and coliform bacteria. The lactobacillus delbrueckii has a preservation number of CGMCC No.11247. In the lactobacillus delbrueckii activating process, bacteriocin can be generated and can remarkably inhibit the mesophilic aerobic bacteria, saccharomycetes, mould and coliform bacteria on the surfaces of fruits and vegetables, so that the preservation effect of thefruits and vegetables can be improved. Furthermore, secondary metabolites of the lactobacillus delbrueckii can be biodegraded and digested by human bodies, and are healthy and harmless to human bodies.

This invention discloses a method for preparing low-GI fruit and vegetable crisps, belonging to the field of fruit and vegetable deep processing technology. Through innovative design of color-protecting liquid and impregnation liquid, this invention enables the prepared fruit and vegetable crisps to possess both low-GI properties and excellent antioxidant capacity, precisely meeting the consumption needs of specific groups such as diabetic patients and those trying to lose weight. Therefore, it has significant importance and market application value in the field of fruit and vegetable deep processing technology.

The application relates to the technical field of fresh-keeping warehouses, and discloses an ethylene dynamic controlled release device for a fresh-keeping warehouse, which comprises a packaging shell, the inner wall of the packaging shell is fixedly connected with a first partition plate and a second partition plate, the first partition plate and the second partition plate make the inside of the packaging shell form a reaction cavity and two separated cavities, a propelling mechanism is installed in the inside of the packaging shell, the propelling mechanism comprises two piston plates, the outer wall of one side of the piston plates is fixedly connected with sliding rods, the ends, away from the piston plates, of the two sliding rods penetrate through the packaging shell and are fixedly connected with a connecting plate, two electric push rods are fixedly installed on the top outer wall of the packaging shell, in the utility model, the ethylene concentration in the fresh-keeping warehouse is monitored in real time through an ethylene sensor, and data is transmitted to a controller, the controller accurately controls the work of the propelling mechanism and a driving assembly according to a preset concentration threshold value, the dynamic adjustment of the contact amount and the contact speed of 1-MCP precursors and slow-release agents is realized, and then the release speed and the time of 1-MCP gas are accurately controlled.

This invention provides a method for freezing strawberries that can reduce the amount of drip that occurs when frozen strawberries are thawed. [Solution] As preparation, a solution containing an ingredient that solidifies into a jelly-like substance at room temperature is prepared. In step 1, strawberries are placed in a vacuum container and the pressure is reduced, causing moisture from inside the strawberries to seep out to the surface through the vascular bundles. In step 2, while maintaining the reduced pressure, the solution containing the ingredient that solidifies into a jelly-like substance at room temperature is brought into contact with the surface of the strawberries. In step 3, with the surface of the strawberries covered with the solution containing the ingredient that solidifies into a jelly-like substance at room temperature, the reduced pressure is released, filling the openings of the vascular bundles on the surface of the strawberries with the solution. In step 4, the strawberries after step 3 are rapidly frozen.

This invention discloses a method for improving the resistance to postharvest black spot disease in sweet potato tubers and maintaining their quality, belonging to the field of postharvest preservation technology for agricultural products. The method includes: selecting undamaged sweet potato tubers for callus treatment at room temperature for 48 hours, disinfecting with 1% sodium hypochlorite, rinsing with sterile water and air-drying, then soaking them in a 9.0 mmol / L benzothiadiazole (BTH) solution (containing 0.05% Tween 80) at room temperature for 60 minutes, removing them and air-drying them to complete the treatment. This invention induces the activation of the sweet potato tuber's own defense system through BTH, increasing the activity of key enzymes in phenylpropane metabolism, chitinase and other disease-resistant enzymes, promoting the accumulation of total phenols and lignin, maintaining cell membrane integrity, inhibiting starch degradation and abnormal increase in soluble sugars. Under storage conditions of 28±1℃ and 80-85%RH, it can significantly inhibit the expansion of black spot disease lesions and extend the storage period to more than 25 days. This method has no pesticide residues, is unlikely to cause pathogen resistance, is environmentally friendly, simple to operate, and cost-controllable, and is suitable for large-scale postharvest preservation of sweet potato tubers.

This utility model discloses an organic herbal tremella processing soaking device, including a connecting base, a soaking tank rotatably connected inside the connecting base, a gear two fixedly connected to the outer end of the soaking tank, a motor two fixedly connected to the lower end of the connecting base, and a rotating shaft fixedly connected to the output end of the motor two through the connecting base upwards. A gear one is fixedly connected to the rotating shaft, and the gear one and gear two mesh with each other. This patent enables the entire soaking tank to rotate by setting gear one, gear two, motor two, and rotating shaft, while the soaking tank can be driven to rotate by motor one on the cover plate, forming a dual dynamic soaking environment. This allows the tremella in the water to be subjected to the dual effects of centrifugal force and water flow impact, accelerating the breaking of ice crystals and uniform heat penetration, and quickly eliminating frozen blocks. The dual stirring also prevents the tremella from piling up and sticking together, improving thawing efficiency and batch stability, and meeting the timeliness and quality requirements of large-scale processing of fresh tremella.

This invention discloses a plant-derived preservative for Akebia quinata, its preparation method, and its application, belonging to the field of fruit and vegetable preservation technology. The preservative uses young Akebia quinata fruit as the main raw material, combined with Sophora flavescens, Phellodendron chinense, and Zanthoxylum bungeanum, and is prepared through primary yeast fermentation and secondary fermentation with Lactobacillus plantarum and Bacillus amyloliquefaciens. The preservative significantly reduces polyphenol oxidase (PPO) activity, effectively inhibiting enzymatic browning in Akebia quinata; after 14 days of storage at room temperature, the rot rate decreases to 64%-66%, with effects comparable to imazalil; it delays fruit cracking, reduces the cracking rate, and decreases the length and width of the ventral suture; it also has a significant inhibitory effect on Escherichia coli and Staphylococcus aureus. The product of this invention is purely plant-derived, with no chemical residues, and possesses four functions: inhibiting browning, preventing rot, preventing fruit cracking, and broad-spectrum antibacterial activity. The process is stable, and the application is simple, making it suitable for post-harvest green preservation of Akebia quinata and showing good industrialization prospects.

The application discloses application of ethyl salicylate in improving resistance of apple fruit to alternaria disease, and relates to the technical field of plant disease resistance. The apple fruit is soaked in an ethyl salicylate solution to improve the resistance of the apple fruit to the alternaria disease, and the method is effective in various varieties. Experimental results show that the ethyl salicylate can inhibit the expansion of botryosphaeria dothidea plaque and improve the expression levels of defense genes EDS1 , PR1 and PR5 . The method can overcome the barrier of using chemical agents to prevent and treat the alternaria disease, greatly reduce the pollution of pesticides and the like to the ecological environment, is favorable to reducing losses caused by the alternaria disease of the apple at a mature period or a storage period, and provides an efficient and environment-friendly method for preventing and treating the alternaria disease, protecting the environment and human health.

To provide a method for disinfecting cut vegetables and keeping their freshness, to solve the problem of the cut vegetables to quickly lose their freshness.SOLUTION: A method for disinfecting cut vegetables and keeping their freshness includes the following steps (1)-(2). Step (1): the cut vegetables are treated with a peracetic acid solution. Step (2): the resultant cut vegetables are then treated with water or a solution (excluding the peracetic acid solution).SELECTED DRAWING: None

This invention discloses a photoactivated porous aerogel with ethylene degradation properties, its preparation method, and its applications. The preparation method includes: mixing a gelatin solution and a resin solution for a first crosslinking reaction, followed by adding a polythioctic acid solution for a second crosslinking reaction to obtain a gelatin-resin / polythioctic acid solution; adding a silver source to the gelatin-resin / polythioctic acid solution and mixing thoroughly, then subjecting the mixture to static degassing, gradient cooling, freeze-curing, and freeze-drying to obtain a gelatin-resin / polythioctic acid / silver ion composite aerogel precursor; and subjecting the gelatin-resin / polythioctic acid / silver ion composite aerogel precursor to a catalytic in-situ reduction reaction to obtain a photoactivated porous aerogel with ethylene degradation properties. The photoactivated porous aerogel prepared by this invention has a three-dimensional porous network structure, exhibits sensitive photoresponse, strong surface hydrophobicity, excellent UV blocking performance, good thermal stability, and also possesses high encapsulation efficiency and excellent biocompatibility.

The application relates to the field of postharvest preservation of fruits and vegetables, and particularly discloses a polypeptide and a derivative thereof with fruit and vegetable preservation functions and applications. The polypeptide comprises the following two kinds: DP1, the amino acid sequence of which is VTLLDLIKDVEM; and DP2, the amino acid sequence of which is SRKNVTAYGSLG. Research shows that the polypeptide can interact with a key receptor protein in a plant ethylene signal pathway, thereby inhibiting ethylene signal transmission and delaying the fruit and vegetable ripening and aging process. The polypeptide or the derivative thereof is applied to the surface of fruits and vegetables in a spraying or soaking mode, and can significantly reduce the fruit peel browning and rotting rate and prolong the shelf life of the fruits and vegetables under normal temperature or cold chain storage conditions. The polypeptide has the advantages of small molecular weight, good stability, high safety, convenient use and the like, and is suitable for postharvest preservation of various fruits and vegetables such as tomatoes, mangoes and the like.

This invention relates to the field of biological control of plant diseases, and discloses *Basilella velutipes* JXF1 and its application in plant disease control and postharvest fruit preservation. *Basilella velutipes* JXF1 exhibits broad-spectrum antifungal activity against various plant pathogenic fungi, including *Fusarium wilt*, *Anthracnose*, *Neoprothiolane spp.*, *Phytophthora downyensis*, and *Sclerotinia sclerotiorum*. Its metabolites also significantly inhibit the colony growth of various fruit and vegetable pathogens. Using strain JXF1 to treat banana fruit significantly reduces the occurrence of banana anthracnose, slows rotting and weight loss, delays peel deterioration, and achieves synergistic effects of disease prevention and preservation. This provides a new strain resource for developing safe and environmentally friendly biological control and preservation technologies for banana postharvest diseases.

The utility model discloses a kind of winter jujube quick freeze-drying devices, belong to freeze-drying equipment technical field, to solve the problem of airflow distribution uneven, cold and hot airflow interference and poor vacuum stability when multilayer winter jujube static freeze-drying. Adopt the horizontal baffle inside box and divide drying storehouse and containing storehouse, vertical rotating rod in drying storehouse is fixed multilayer placing plate, each placing plate can be detachably formed into a pair of tray, rotating rod is equipped with rotating pipe of fan baffle;Containing storehouse is connected with multilayer cold gas branch pipe in drying storehouse by refrigerating plant through cold gas main pipe, hot air fan is connected with hot gas branch pipe that is parallelly misaligned arrangement with cold gas branch pipe by hot gas main pipe, vacuum pump is connected with drying storehouse by connecting pipe.The utility model realizes winter jujube efficient uniform freeze-drying by rotating tray combined with layered directional air supply and airflow guide.

The utility model discloses a konjak vacuum freeze drying machine, include: cabinet, have the drying chamber of front side opening, and the drying chamber left and right side wall is equipped with support block, and the end of support block is equipped with the limit block that extends upwards, carry strip, left and right symmetry sets up, and the opposite side of left and right two sides's carrying strip is equipped with the bearing slot, and the bearing slot is set up and is arranged in vertical arrangement, the back of left and right two sides's carrying strip is equipped with the embedding groove that supplies support block embedding, and the embedding groove top wall is in contact with the upper surface of support block, and the back of the embedding groove on left and right two sides's carrying strip is equipped with the insertion port, and the insertion port can supply support block and limit block horizontal insertion, and the embedding groove top wall is equipped with the limit slot that supplies limit block embedding, and the side wall of limit slot towards insertion port one side is in contact with the side wall of corresponding limit block. The utility model carries strip installation and dismounting are very convenient, and can complete the dismounting of carrying strip without disassembling fastener, and it is convenient to clean after carrying strip dismounting, and simple operation is convenient for dismounting maintenance.

This invention relates to Bacillus vesiculosus antimicrobial peptides and their application in food preservation, belonging to the field of biotechnology. The amino acid sequence of the antimicrobial peptide is shown in SEQ ID NO: 1. The antimicrobial peptide provided by this invention is a novel antimicrobial peptide in structure, enriching the antimicrobial peptide database; this antimicrobial peptide can effectively inhibit the normal growth of Fusarium oxysporum, has a broad antimicrobial spectrum, and has potential development and application prospects; this antimicrobial peptide can effectively extend the refrigerated shelf life of dragon fruit, and has good application prospects in fruit preservation.

This invention discloses a method for preparing and applying nanoliposomes, relating to the fields of kiwifruit soft rot control and kiwifruit preservation. The preparation method includes the following steps: mixing thymol, cholesterol, and oleic acid to obtain an oil phase; mixing polyethylene glycol, lauryl ether phosphate, an emulsifying dispersant, and water to obtain an aqueous phase; mixing the oil phase and the aqueous phase, performing high-speed emulsification and shearing followed by low-speed stirring to obtain nanoliposomes. This invention uses cholesterol and oleic acid as wall materials and polyethylene glycol as a modifying material to successfully load thymol into nanoliposomes via microemulsification, achieving highly efficient encapsulation of thymol. The obtained thymol-containing nanoliposomes exhibit excellent performance and can be used to prepare formulations for controlling kiwifruit soft rot, demonstrating excellent control effects against the disease.

A fresh food container (1) in the form of a negative pressure draw-out device, comprising at least one container base (2) and a container cover (3) that can be fitted over the at least one container base (2), wherein the container cover (3) has an open-loop control device and / or a closed-loop control device (4) and at least one sensor device (5), wherein the at least one sensor device (5) is configured to determine the CO2 content, temperature and / or the proportion of particularly volatile organic compounds in the atmosphere (6) placed inside the at least one container base (2), and the at least one open-loop control device and / or closed-loop control device (4) is configured to adapt the CO2 content, temperature and / or the proportion of organic compounds in the atmosphere (6).

The utility model discloses a dewatering device for edible mushroom processing, and relates to the technical field of edible mushroom processing, the dewatering device comprises a fixed box, a dewatering cylinder and a mounting ring stand, the two ends of the mounting ring stand are fixedly connected with an upper rotating rod and a lower rotating cylinder respectively, and the mounting ring stand is rotatably connected to the interior of the fixed box through the upper rotating rod and the lower rotating cylinder; the dewatering cylinder is rotationally connected to the interior of the mounting ring frame, water leakage holes are formed in one end and the outer surface of the dewatering cylinder, and the mounting ring frame is driven to rotate in the fixing box, so that the dewatering cylinder rotates around the upper rotating rod; under the action of the connecting mechanism, the dewatering cylinder rotates in the mounting ring frame in the process of rotating around the upper rotating rod, so that the dewatered edible mushrooms are prevented from being attached to the inner wall of the dewatering cylinder for a long time due to the influence of centrifugal force, the dewatering effect on the edible mushrooms is improved, and hot air is conveyed into the lower rotating cylinder, so that the dewatering efficiency is improved. The water is sprayed out through the air spraying holes in the connecting pipe, so that the dehydration efficiency of the edible mushrooms is improved.

This invention discloses a method for preparing a Ni-doped modified UiO-66-NH2 composite preservation film with chitosan / polyvinyl alcohol, belonging to the field of photocatalytic materials and preservation materials. The method includes: Step S1, preparing Ni / UiO-66-NH2 by hydrothermal method. Step S2, mixing and stirring chitosan and polyvinyl alcohol solution to obtain a blend, adding Ni / UiO-66-NH2 prepared in step (1) to the blend, stirring thoroughly, ultrasonically defoaming to obtain a film-forming liquid, and uniformly pouring the film-forming liquid into a mold. Drying to obtain a composite preservation film. This invention utilizes Ni doping to effectively suppress the recombination of photogenerated electron-hole pairs in UiO-66-NH2, improving charge separation efficiency. The resulting composite film has excellent antibacterial activity and structural stability. The preparation process of this invention is simple, the raw materials are widely available, and it is environmentally friendly, with broad application prospects in the field of fresh food preservation packaging.

Provided is a compressed freeze-dried food product having excellent shape retention and a method for producing the same. The compressed freeze-dried food product contains at least one food material selected from the group consisting of vegetables, fruits, mushrooms, and seaweed, and gelatin and / or alpha-dextrin. Preferably, two or more food materials selected from the group consisting of vegetables, fruits, mushrooms, and seaweed are contained. Further, preferably, the total volume of the food materials after reconstitution is 4.8 times or more and 7.2 times or less of the volume of the compressed freeze-dried food product before reconstitution.

The present application discloses a refrigerator, comprising a refrigerator body, a door body, and a fresh-keeping module, wherein the door body is connected to the refrigerator body; the fresh-keeping module comprises at least one fresh-keeping space and an air-conditioning apparatus that is in airflow communication with the fresh-keeping space; the air-conditioning apparatus is configured to change the proportion of a specific gas in the fresh-keeping space by means of an electrochemical reaction; the fresh-keeping space and / or the air-conditioning apparatus are / is arranged on the door body, or the air-conditioning apparatus is arranged on the top of the refrigerator body. When the fresh-keeping module is used to implement air-conditioning and fresh-keeping, the air-conditioning apparatus and / or the fresh-keeping space are / is arranged on the door body or on the top of the refrigerator body, thereby reducing waste of the storage space in the refrigerator body.

The application discloses a bacterial QS inhibitor and application thereof, and the active ingredient of the bacterial QS inhibitor is apigenin, and the use concentration is a sub-inhibitory concentration of target bacteria. The application first discovers and systematically proves that apigenin has a wide and significant inhibitory effect on a variety of bacterial QS systems and a spoilage phenotype regulated by the QS systems. Experiments show that under a sub-inhibitory concentration, the inhibition rate of apigenin on biofilm formation of pectobacterium is up to 96.33%, the inhibition rate of apigenin on synthesis of a signal molecule is up to 88.42%, and the inhibition rate of apigenin on a key virulence enzyme is more than 70%; the fresh-keeping effect of apigenin on food is significant, and the application of apigenin in the field of food fresh-keeping is expanded; and apigenin is a natural dietary ingredient and has high safety.

The application discloses a kind of based on graphene coating infrared synergistic efficient composite drying method of fruit freeze-drying, the method includes the following steps: S1.fruit is in the pulsed electric field of pulse voltage 35 kV / cm below and is pretreated, and the fruit after pulsed electric field pretreatment is obtained;S2.pretreated fruit is in the electrostatic field of field intensity 30 kV / cm below and is pre-frozen, and the fruit after pre-freezing is obtained;S3.pre-frozen fruit is placed on graphene coating hot plate, and is dried under vacuum condition, and the freeze-dried fruit is obtained;The heating rate of graphene coating hot plate is 2~5℃ / min, heating temperature is 30~50℃, and drying time is 8~12 h.The fresh fruit is sequentially treated by pulsed electric field, electrostatic field assisted directional freezing treatment and graphene coating infrared heating drying process synergy, so that freeze-dried fruit nutrient retention rate is high, rehydration is good, and freeze-drying cycle is shortened by 25~45%, energy consumption is reduced by 25~40%, suitable for efficient high-quality energy-saving drying processing of fresh fruit.

This application relates to methods of inhibiting the growth of microbes in and / or on plant-based products by treating the plant-based products with a composition including one or more ascarosides.

The present application relates to the field of microbial technology, and particularly to a strain of Gluconobacter oxydans and its application. Gluconobacter oxydans The present application provides a strain of Gluconobacter oxydans (Gluconobacter oxydans) named KUST4611, which has been preserved in the Guangdong Microbial Culture Collection Center on October 22, 2025, with a preservation number of GDMCC NO: 67143. The volatile substances produced by the strain provided by the present application during growth have a bacteriostatic effect. When the strain is applied to prepare a fresh-keeping gel, the volatile substances produced by the gel placed in a closed space can achieve good fresh-keeping effect, effectively reduce the occurrence of diseases, maintain the freshness of the peppers, and effectively prolong the fresh-keeping period of the peppers. Meanwhile, the preparation method of the fresh-keeping gel is simple, and the fresh-keeping effect can be easily and conveniently achieved, the cumbersome steps of postharvest preservation are reduced, and the postharvest preservation efficiency is further improved.

A moisture-activated carbon dioxide (CO2) release system is disclosed for postharvest preservation of fruits, vegetables, and other fresh plant products. The system comprises a composition including sodium bicarbonate (SBC) and citric acid that, upon exposure to humidity, rapidly generates CO2 gas to suppress fungal growth. Various deployment systems enable immediate or sustained release based on packaging conditions and crop type. The system provides a safer alternative to traditional fumigation, and provides improved decay control and extended shelf life.

Described herein are plastic carriers having antimicrobial properties, as well as compositions (e.g., masterbatches) and methods for producing such plastic carriers. In some embodiments, the plastic carrrier comprises potassium metabisulfite, which imparts antimicrobial properties to the plastics.

A strawberry according to one embodiment of the present invention includes ethyl acetate, ethyl butyrate, ethyl 2-methylbutyrate, ethyl isovalerate, and ethyl hexanoate as aroma components, wherein the total aroma component content is 1,150-14,100 ppb inclusive.

The application belongs to the technical field of RNA biological control, and particularly relates to application of dsRNA targeting candidate effector protein gene of anthracnose CsCCE3 , wherein a nucleotide sequence of the dsRNA is shown as SEQ ID No. 2, the dsRNA is transcribed from an anthracnose CsCCE3 gene target gene segment, and a nucleotide sequence of the anthracnose CsCCE3 gene target gene segment is shown as SEQ ID No. 1. The application provides application of the dsRNA targeting candidate effector protein gene of anthracnose CsCCE3 in preparation of products for preventing and treating crop anthracnose, and pathogenicity of rubber tree anthracnose and mango anthracnose can be obviously reduced by loading the above dsRNA on a nanometer material layered double hydroxide, so that the application has an application prospect of high-efficiency and target prevention and treatment of crop anthracnose.

A clathrate of 1-methylcyclopropene with α-cyclodextrin, obtained as a solid particulate product, is modified by comminuting, classifying, or both to obtain a modified particulate. When subjected to identical atmospheric disgorgement conditions of humidity and temperature, identical masses of the modified and unmodified particulates exhibit different rates of 1-methylcyclopropene disgorgement. Specifically, we have found that a smaller mean particle size is inversely related to a greater rate of 1-methylcyclopropene release.