34 results about "Capsaicinol" patented technology

Methods of making bioactive compound-loaded nanoparticles are provided. The methods harness naturally-occurring biopolymers to produce nanoparticles from raw plant materials. Methods include contacting plant-derived materials with alkaline solution with agitation to deprotonate the bioactive materials and biopolymers to form nanoparticles. In some forms, the methods contact the nanoparticle with an acid to re-protonate the components and more stable nanoparticles. The bioactive compounds can be extracted from raw plants and / or plant parts, including turmeric, ginger, clove, thyme, pepper, and rosemary. The bioactive compounds include curcumin, gingerols, shogaols, eugenol, thymol, carvacrol, capsaicin, and rosmarinic acid. Compositions and formulations containing bioactive-compound loaded nanoparticles are also provided.

The invention provides a viscous seed coating agent for desert aerial seeding and application thereof, and belongs to the technical field of ecological restoration. According to the coating agent, seeds serve as a core, and an inner-layer nutrition matrix and an outer-layer mucus layer are sequentially formed from inside to outside; the inner layer comprises a water-retaining agent, a binder and a microbial agent of nitrogen-fixing bacteria and phosphate solubilizing bacteria; the outer layer comprises an Arabic gum / natto resin adhesive, gibberellic acid and indolebutyric acid plant growth regulator and a bitter taste element / capsaicin animal repellent. Seeds are firmly attached to the sand surface through the outer-layer viscous substance, and sand blowing loss is reduced; the inner water retention layer and the microbial agent continuously supply water and fertilizer, so that the seed germination and seedling survival capability is improved; the outer layer repellent reduces animal pecking, and plasma activation further promotes germination. The coating agent can significantly improve the retention rate, the germination rate and the seedling survival rate of desert aerial seeding seeds, and is suitable for ecological restoration of xerophytes such as caragana microphylla.

This invention discloses a chili oleoresin, its preparation method, and its applications, relating to the field of food seasoning processing technology. The raw materials for this chili oleoresin include a mixed chili oleoresin and a flavor enhancer in a mass ratio of 1000:3.005-6.2. The mixed chili oleoresin is composed of at least two chili oleoresin base materials with the same total capsaicin content but different relative capsaicin content ratios, blended in a specific ratio. The total capsaicin content in the mixed chili oleoresin is 400,000-430,000 SHU, and the relative capsaicin content ratio is 1.80-2.40. This invention expands the applicability of the mixed chili oleoresin. When the relative capsaicin content ratio is within the range of 1.80-2.40, the chili oleoresin exhibits a mild spiciness, moderate spiciness duration, and a spiciness in the mouth without burning the throat. Furthermore, by combining it with a flavor enhancer, the overall taste of the chili oleoresin can be significantly improved, synergistically enriching and modifying the layers of spiciness.

This invention discloses an organosilicon marine antifouling coating suitable for static marine facilities. The coating process involves reacting capsaicin with unsaturated acid anhydride monomers to eliminate the active free radical scavenging phenol groups and synthesize capsaicin unsaturated esters. These esters serve as inhibitors for subsequent free radical copolymerization. The capsaicin unsaturated esters then undergo free radical polymerization with unsaturated silane curing agent monomers to obtain capsaicin-modified silane curing agents. These modified organosilicon marine antifouling coatings are then prepared based on this modified silosilicon coating. In actual service, especially in static seawater environments, the low surface free energy of this coating inhibits the adhesion of fouling organisms. Simultaneously, the capsaicin groups stimulate fouling organisms, driving them away from the coating surface and significantly improving the antifouling effect of the coating on static marine facilities. This coating is particularly suitable for various static marine facilities subjected to long-term static immersion in seawater, achieving fouling prevention without relying on seawater erosion.

The invention discloses a quantitative analysis method for perceiving the pungency degree of spicy food and a standardized grading and quality control method. Comprising the following steps: preparing reference capsaicin standard solutions with different concentrations, evaluating the perceived capsaicin concentration of the reference capsaicin standard solutions, determining the pungency degree value by using an instrument, drawing a pungency degree perceived capsaicin concentration-pungency degree value determined standard curve by using the instrument, and pretreating the spicy food by using different pretreatment schemes according to types to obtain a sample solution to be detected. Measuring the pungency degree value of a sample solution to be measured by an instrument, substituting the pungency degree value into the standard curve, and calculating to obtain the pungency degree sensing capsaicin concentration corresponding to the pungency degree value measured by the instrument of the sample solution to be measured. According to the method, subjective sensory evaluation is converted into reproducible objective data by establishing a'sensory evaluation group calibration + instrument detection + standard curve ', and the problems of detection distortion, low detection efficiency and the like caused by high subjectivity of sensory evaluation, disjunction of instrument analysis and human body perception and interference of different matrixes in an existing pungency degree evaluation method are solved.

The invention provides a composite antifouling coating material as well as a preparation method and application thereof, and belongs to the technical field of functional coatings. The preparation method comprises the following steps: firstly, synthesizing methacrylate capsaicin, then copolymerizing the methacrylate capsaicin and N-isopropylacrylamide to obtain a poly (N-isopropylacrylamide) methacrylate capsaicin copolymer, and then grafting the poly (N-isopropylacrylamide) methacrylate capsaicin copolymer onto organic silicon polyurethane to obtain the organic silicon polyurethane-grafted poly (N-isopropylacrylamide) methacrylate capsaicin copolymer. The composite antifouling coating material is obtained. The anti-fouling coating formed by the composite anti-fouling coating material can release fouling organisms based on temperature response, the anti-fouling agent can be stably released, the coating further has self-repairing capacity, the anti-fouling coating with great value is provided for the field of medical instruments or marine antifouling, and the composite anti-fouling coating material has wide prospects in practical application.

The invention relates to the technical field of food quality detection, in particular to a spice drying process internal component change monitoring method based on hyperspectral imaging. According to the specific technical scheme, the method comprises the following steps: (1) acquiring and correcting images of complete peppers in different drying stages based on a hyperspectral image technology; (2) image data processing and spectrum extraction; and (3) establishing an internal component change model in the chili drying process based on spectral data. The method comprises the following steps: firstly, acquiring the contents of three substances, namely total phenols, carotenoids and capsaicin substances, then acquiring and correcting images of complete peppers in different drying stages based on a hyperspectral imaging system, and then selecting a region of interest and extracting spectral information. A computer is used for forming a new matrix by using the spectral characteristic information of the ROI and the physicochemical information of the three substances to establish a PLS prediction model to predict the content of the information of the three components of the sample, and finally, the pepper quality visual distribution analysis based on the optimal PLS model is carried out.

The invention relates to the technical field of optical cable preparation, in particular to a rat-proof optical cable with a rat-proof coating structure and a preparation process. Comprising the following steps: preparing a temperature-sensitive shell material, preparing a cross-linked copolymer, preparing a temperature-sensitive release capsaicin filler, and preparing the rat-proof optical cable with the rat-proof coating structure. According to the invention, N-isopropylacrylamide and acrylated hydrogenated castor oil are combined to construct a temperature-sensitive microsphere shell, and in the combination, N-isopropylacrylamide is used as a temperature-sensitive component to provide a basic temperature response characteristic for a system; acrylated hydrogenated castor oil serves as a multifunctional cross-linking agent and a reinforcing phase, when the temperature is higher than the minimum critical solution temperature, capsaicin is greatly released through a hydrophobic micro-area formed by the acrylated hydrogenated castor oil and collapsed N-isopropylacrylamide chain in a synergistic mode, and a network absorbs water to be swelled at the low temperature to block capsaicin and stop release, so that the capsaicin is prevented from being released. And thus, the microspheres can realize effective temperature regulation and control release.

The present application provides a curry sauce, comprising: 85-90 parts by mass of soybean oil, 35-40 parts by mass of chopped chili pepper, 10-15 parts by mass of dehydrated coriander, 8-10 parts by mass of edible salt, 8-10 parts by mass of white granulated sugar, 5-12 parts by mass of monosodium glutamate, 4-10 parts by mass of raw garlic, 2-4 parts by mass of erythritol, 2-4 parts by mass of raw ginger, 1.5-2.0 parts by mass of oyster sauce, 1.5-2.5 parts by mass of chicken essence, 0.4-0.6 parts by mass of yeast extract, 0.6-0.8 parts by mass of capsaicin, and 0.1-0.3 parts by mass of capsicum red pigment. The two-step process of "cold treatment plus color protection agent and synergistic rehydration, low-temperature frying and fresh-keeping" is adopted for the dehydrated coriander, and the rehydration link uses a compound solution of erythritol, concentrated lemon juice and erythorbic acid to achieve the four effects of color protection, crispness preservation, taste retention and shelf life extension. By controlling the process parameters and taking advantage of the compound components, the unstable quality and short shelf life of the rehydrated coriander are solved.

The invention belongs to the technical field of gene engineering, and particularly relates to application of a CcMYB1R1 protein and a gene in regulating and controlling the content of capsaicin substances of capsicum. The invention provides the CcMYB1R1 protein for regulating and controlling the content of capsaicin substances, and the CcMYB1R1 protein is a key transcription factor for regulating and controlling synthesis of capsaicin substances in capsicum fruits, can promote biosynthesis of capsaicin substances, and has an important regulating and controlling effect on quality formation of capsicum fruits. By regulating and controlling the content of the CcMYB1R1 protein or the expression quantity of the CcMYB1R1 gene, the content of capsaicin substances in the pepper fruits can be effectively regulated and controlled, a new key gene resource is provided for analyzing a secondary metabolism regulation and control network of the pepper fruits, and a direct genetic target and an important genetic material are provided for cultivating new germplasm of the pepper.

The invention belongs to the technical field of pepper molecular breeding, and discloses a KASP molecular marker for regulating capsaicin biosynthesis candidate genes, a primer, a kit and application. The flanking nucleotide sequence of the KASP molecular marker is as shown in SEQ ID No: 1. The primer comprises a forward primer 1 as shown in SEQ ID No: 2, a forward primer 2 as shown in SEQ ID No: 3 and a reverse primer as shown in SEQ ID No: 4. The kit comprises the primer. The invention also provides application of the primer or the kit in identification and auxiliary screening of whether the pepper contains capsaicin or not, and in identification, screening or auxiliary breeding of a pepper fruit non-spicy mutant. According to the molecular marker, the primer and the kit developed by the invention, the target plant can be quickly screened out, the planting scale is effectively reduced, and the later field identification workload is reduced, so that the selection efficiency and accuracy are improved.

The invention discloses an active bio-organic fertilizer with an insect repelling function and a preparation system thereof. The organic fertilizer is prepared by taking chicken manure and corn bran as raw materials, inoculating a compound microbial flora and adding a chili seedling ferment liquid under an aerobic fermentation condition, and is rich in capsaicin natural parasite expelling substances and high-activity microbial flora. The preparation system comprises a fermentation tank main body, a pit mud microbial carrier layer fixed on the inner wall of the tank, a functional enzyme targeted regulation and control device, an aeration system, a turning and throwing system and an intelligent control system. According to the invention, strains are continuously supplied through the pit mud layer, and the functional enzyme device is utilized to precisely atomize the enzyme liquid in a partitioned manner, so that efficient, stable and automatic production of the insect-repelling active organic fertilizer is realized, and no chemical addition is generated in the whole process.

The invention relates to the technical field of food processing, and discloses a pepper dryness-removing method which comprises the following steps: S1, raw material pretreatment: screening pepper raw materials according to pungency degree, and then pre-drying the pepper raw materials with low-temperature hot air; s2, removing dryness, reducing pungency and locking flavor: steaming and braising the chilies in a full-automatic graded temperature control steaming and braising pot, and then adding auxiliary materials for stir-frying; and S3, sealing and packaging: protecting a cooling tunnel with nitrogen, and carrying out anti-oxidation packaging on the finished product. The method comprises the following steps: grading low pungency, medium pungency and high pungency according to the pungency degree of a chili raw material, designing differential process parameters, carrying out graded temperature control at 200-260 DEG C and steaming and braising at 0.02-0.05 MPa micro-pressure, directionally destroying dry substances, accelerating the hydrolysis of capsaicin into a low-pungency-degree product by micro-pressure, controlling the parameters to avoid the loss of aroma substances, adding specific auxiliary materials in a frying link, and adapting to the flavor preference of the public. The color, aroma, pungency degree and dryness of the finished product stably reach the standard, so that the chili processing quality is improved.

A system, composition, and method are disclosed for producing superhydrophobic and antifouling polymer materials. The invention incorporates antifouling agents such as capsaicin, medetomidine, tralopyril, or zinc pyrithione together with hydrophobic additives such as polydimethylsiloxane, polytetrafluoroethylene, fluoropolymers, or surface-modified nanoparticles into natural or synthetic rubber and thermoplastic matrices. In one approach, pre-formulated antifouling compositions are added as solid components during compounding, and in another, the polymer itself serves as a carrier medium for direct incorporation of the active ingredients. The compounded materials exhibit controlled release of antifouling agents, low surface energy, and superhydrophobic behavior that reduces drag and resists attachment of marine and freshwater organisms. A manufacturing system may include compounding, monitoring, and forming units, with optional plasma or laser treatment to enhance nanoscale roughness. The invention enables durable, environmentally responsible materials for marine, industrial, and consumer applications requiring long-term fouling resistance.

The invention relates to the technical field of plant genetic breeding, in particular to a directional pyramiding breeding method for improving the pungency degree and color value of processed chilies. Comprising the steps of parent screening (molecular marker identification of high-pungency and high-color-value germplasm based on capsaicin synthesis key genes Pun1 and Capana06g001204 and capsorubin regulatory genes CaBBX20 and CCS), hybridization polymerization (multi-generation backcross and molecular marker-assisted selection integration of pungency degree / color value genes), ploidy breeding accelerated homozygosis (a microspore culture combined chromosome doubling technology), and cross breeding of the high-pungency and high-color-value germplasm. And performing phenotype verification (detecting the content of capsaicin substances by high performance liquid chromatography and determining the color value by spectrophotometry). According to the method, gene modules for controlling the pungency degree and the color value are directionally polymerized, a special dry processing variety with the capsaicin content being larger than or equal to 3% (the corresponding pungency degree being larger than or equal to 30,000 SHU) and the color value being larger than or equal to 300 ASTA is bred, the breeding period is shortened to 1 / 3 of that of a traditional method, and the requirement of the pepper processing industry for high-quality raw materials is met. The method is suitable for large-scale pepper breeding, and is particularly suitable for planting in high-altitude and arid regions.

The invention relates to a method for producing an organic water-soluble fertilizer by utilizing marigold fermentation press filtrate. Belongs to the fertilizer field. The compound fertilizer comprises a marigold water-soluble fertilizer and rosemary fermentation liquor, the marigold water-soluble fertilizer is obtained by performing pH adjustment on marigold fermentation press filtrate, performing solid-liquid separation, taking liquid, concentrating, cooling, settling and taking liquid. The rosemary fermentation liquor is obtained by fermenting rosemary waste residues through trichoderma asperellum, carrying out solid-liquid separation and taking liquid. According to the invention, two agricultural wastes are converted into high-value functional fertilizers, and integration of resource circulation and pesticide-fertilizer is realized. Through biological fermentation, the marigold water-soluble fertilizer provides growth-promoting nutrition and improves capsaicin synthesis, and trichoderma asperellum viable bacteria are introduced into rosemary fermentation liquor, so that pepper phytophthora blight is prevented and treated specially. The water-soluble fertilizer provided by the invention is especially suitable for pepper planting, and is also a universal water-soluble fertilizer.

The invention discloses a microcapsule composite coating capable of resisting chlorine corrosion and preventing marine biofouling and a preparation method, and belongs to the technical field of marine corrosion and protection, the microcapsule composite coating comprises a coating matrix and double-shell structure microcapsules dispersed in the matrix; the double-shell structure microcapsule comprises: an active core material; the inner shell is an organic layer and is used for packaging the active core material; the outer shell coats the outer wall of the inner shell and is formed by compounding an epoxy matrix and MgAl-LDH nanosheets dispersed in the epoxy matrix; the active core material comprises capsaicin. According to the microcapsule composite coating disclosed by the embodiment of the invention, through a double-shell microcapsule structure with an MgAl-LDH composite shell / capsaicin inner core, when the local chloride ion concentration of the composite shell is increased or the composite shell is mechanically damaged, the structure or permeability of the composite shell is changed, so that directional release of the active core material is triggered; the long-acting chloride ion penetration resistance and the continuous marine organism fouling resistance of the coating are synergistically improved, and the technical problem that corrosion prevention and fouling prevention of a traditional coating are difficult to consider at the same time is solved.

The invention discloses natural high-color and high-stability chili oil and a preparation method thereof. Through ultrasonic combined microwave treatment, the color value and capsaicin content of the chili oil are remarkably improved, and the color is brighter. The method comprises the following steps: mixing mature and dried capsicum annuum and capsicum frutescens serving as raw materials according to a mass ratio of 2: 1, crushing, and screening with a 80-mesh screen, so as to obtain chili powder; hot oil is added into the chili powder, the oil temperature is 85-88 DEG C, and the mass volume ratio of the chili powder to the hot oil is (1-2): (8-9); uniformly stirring, performing ultrasonic combined microwave treatment for 20 minutes, and performing filtering and centrifugal treatment to obtain the high-color and high-stability chili oil. The chili oil prepared by the invention has more excellent color stability, flavor and sensory quality, can be widely applied to various fields of food, and provides a technical solution for extraction of capsochrome and product processing.

The invention belongs to the technical field of agriculture, and particularly relates to a soilless culture method for improving pepper quality. The method comprises the steps of seed treatment, seedling raising, field planting, special nutrient solution supply and the like. The method is characterized in that the special nutrient solution is prepared by the following steps: reacting L-phenylalanine and sinapic acid under the catalysis of laccase to generate a quinone polymer reaction solution, and compounding the reaction solution with a mixed solution prepared from macroelements and trace elements such as calcium nitrate and ammonium dihydrogen phosphate to finally obtain the special nutrient solution. The quinone polymer generated by the enzymatic reaction can be efficiently absorbed by the root system of the pepper and is used as a signal molecule to activate the metabolic pathway of phenylpropane, so that the content of core quality indexes such as capsaicin, vitamin C and soluble sugar in the fruit is remarkably increased while the normal growth of the pepper is ensured, and the yield of the fruit is improved. The problem of insufficient chili flavor and nutrition of a conventional soilless culture technology is solved.

This invention belongs to the field of molecular biology technology for chili pepper breeding, and discloses a molecular marker, primers, and their applications related to capsaicin content. The molecular marker uses the “zhangshugang” version of the genome as a reference gene, and its flanking nucleotide sequence is shown in SEQ ID NO: 1. The primers are shown in SEQ ID NO: 2-4. This invention also provides the primers or kits for identifying and assisting in the screening of chili pepper spiciness, or for the identification, screening, or breeding of non-spicy chili pepper fruits. This invention achieves early, accurate, and high-throughput identification of the “non-spicy” and “spicy” traits in chili peppers. The developed KASP molecular marker can complete genotyping within hours using only a small amount of leaf DNA during the seedling stage, accurately predicting the spiciness phenotype of mature fruits, moving the selection process from the field to the laboratory, and breaking through the spatial and temporal limitations of phenotypic identification.

The invention belongs to the field of digital communication, and particularly relates to a novel FRP rat-proof and bird-pecking-proof armored digital communication cable which comprises multiple strands of core bodies, insulating layers are fixedly connected to the outer sides of the multiple strands of core bodies in an extruded mode, and every two adjacent sets of insulating layers and the core bodies on the inner sides of the insulating layers are jointly twisted to form twisted pairs; the number of the twisted pair wires is four, and the four groups of twisted pair wires are twisted to form a cable core. According to the invention, the FRP armor layer is made of a glass fiber reinforced composite material and wraps the outer side of the inner sheath in a multi-strand spiral winding manner, the tensile strength of the FRP armor layer is far higher than the occlusal force of rat teeth and the pecking impact force of birds, rat gnawing and bird pecking can be physically prevented, the strength of the cable is increased, the weight is reduced, and the cable is suitable for popularization and application. And the outer sheath is made of a high-density polyethylene material added with a capsaicin derivative, so that the pungent smell and taste experience of the capsaicin derivative can actively repel mice and birds, damage behaviors are reduced from the source, and the operation and maintenance cost is reduced.

The application provides a method for inducing capsaicin synthesis by using a light signal transcription factor CaBBX2, and specifically comprises an experimental method for studying the influence of silencing CaBBX2 gene on capsaicin synthesis in a living plant. The CaBBX2 gene is silenced in a living pepper, and the contents of capsaicin, dihydrocapsaicin and total capsaicin and the expression changes of capsaicin synthesis related genes in the pepper fruits at 16d, 25d, 33d and 38d after pollination are observed and analyzed. The experimental results show that the content of capsaicin is significantly reduced compared with the empty control group after the CaBBX2 gene is silenced, which indicates that CaBBX2 is related to the biosynthesis of capsaicin, and the expression of capsaicin synthesis related genes is also reduced to different degrees with the silencing of CaBBX2, further verifying that CaBBX2 can affect the synthesis of capsaicin by regulating the expression of capsaicin synthesis related genes.

The utility model relates to agricultural planting material technical field, and disclose degradable grass -preventing and bacteriostatic mulching film for pepper planting, including mulching film main part, and the mulching film main part includes light -proof grass -preventing layer, the bottom of light -proof grass -preventing layer is provided with bacteriostatic slow -release layer, the bottom of bacteriostatic slow -release layer is provided with soil contact degradation layer, and light -proof grass -preventing layer includes ultraviolet barrier film, and the bottom of ultraviolet barrier film and the top of bacteriostatic slow -release layer fixedly bond, bacteriostatic slow -release layer includes capsaicin extract slow -release carrier layer, and the bottom of capsaicin extract slow -release carrier layer and the top of soil contact degradation layer fixedly bond, and soil contact degradation layer includes corn starch base film, through being provided with mulching film main part, can effectively prevent the growth of weeds, restrain the pathogenic bacteria in the soil simultaneously, reduce the pollution to the environment, protect the healthy growth of pepper crop, improve the soil fertility, provide better growth environment for pepper plant.

The invention belongs to the technical field of environmental protection, and particularly relates to a high-capacity hydrogen sulfide gas adsorbent and a preparation method thereof. Comprising the following steps: preparing hyperbranched polyamide-amine; directional freezing is performed to prepare a bentonite-based hydrogen sulfide gas adsorbent; and modifying capsaicin of the bentonite-based hydrogen sulfide gas adsorbent. Hyperbranched polyamide-amine is prepared and loaded on bentonite, and a through mesoporous channel is constructed for hydrogen sulfide gas molecules in bentonite, so that the gas diffusion rate is greatly improved, the contact efficiency of gas and an adsorbent is improved, and meanwhile, the adsorption capacity of the adsorbent is improved. The tree topology structure of hyperbranched polyamide-amine enables amino groups to be tightly anchored on the surface of a bentonite silica tetrahedron to form a rigid layered-flexible crown multi-layer composite structure, so that adsorption site amino groups can fully contact and adsorb hydrogen sulfide gas; the combination of the two can greatly improve the adsorption efficiency and adsorption capacity of the adsorbent on hydrogen sulfide gas.

The present invention belongs to the technical field of ultra-high molecular weight polyethylene protective nets, and specifically relates to a material for ultra-high molecular weight polyethylene protective nets and its preparation process. The material for ultra-high molecular weight polyethylene protective nets consists of two parts: an inner layer base fiber and an outer attached coating; the inner layer base fiber is composed of ultra-high molecular weight polyethylene resin powder, vinyl-terminated hyperbranched polysiloxane, mercapto-functionalized graphene oxide nanosheets, photoinitiator, modified hindered amine light stabilizer and antioxidant; the outer attached coating is composed of vinyl-terminated fluorosilicone resin liquid, microcapsule antifouling agent with capsaicin as the core material, methylated nano-silica particles, hydrogen-containing silicone oil and platinum catalyst; the material for ultra-high molecular weight polyethylene protective nets prepared by the present invention has excellent weather resistance, antifouling property and mechanical properties.

This invention belongs to the field of chili molecular breeding technology, and discloses a molecular marker, primers, kit, and application for identifying the spiciness of chili fruits. The molecular marker uses the "Zunla-1" reference genome as a reference genome, is located on chromosome 2, and its nucleotide sequence contains the wild-type sequence shown in SEQ ID NO: 1 or the mutant sequence shown in SEQ ID NO: 2. This invention also discloses primers for the molecular marker used to identify the spiciness of chili fruits, including forward primers 1 and 2 and a reverse primer. This invention utilizes the BSA mapping method to locate a novel gene controlling the spiciness of chili fruits, and based on the mutation site of this gene, develops a molecular marker associated with this capsaicin-reducing gene, and provides a method for identifying or assisting in the identification of chili spiciness. This method allows for rapid and accurate identification of the chili spiciness phenotype.

The invention discloses application of an ERF / AP2 family transcription factor CcADAP in regulation and control of pungency degree of Chinese pepper. A silent material of ADAP is obtained through a gene silencing technology. The content of capsaicin and dihydrocapsaicin in silent plant fruits is determined, it is found that the content of capsaicin and dihydrocapsaicin can be effectively reduced through silent expression of the transcription factor ADAP in capsicum, and a key target gene is provided for development of a new variety of capsicum with low pungency degree and flavor and development of a fresh food market.

The invention relates to the technical field of wire harness adhesive tapes, and discloses a rat-bite-proof UV hot melt cloth-based wire harness adhesive tape as well as a preparation method and application thereof. The preparation method comprises the following steps: (1) modifying a base cloth with alkali liquor: putting a polyester fiber base cloth into a sodium hydroxide solution for pretreatment, neutralizing with an acetic acid solution, and sequentially carrying out water ultrasonic cleaning, optimized solvent washing and drying; (2) cloth-based grafting: uniformly mixing capsaicin, a silane coupling agent, an organic bismuth catalyst and an ethanol water solution, adding the mixture obtained in the step (1) into the mixture, soaking for several minutes, and then heating for addition reaction; (3) compounding an adhesive layer: heating and melting an acrylic acid type UV hot melt adhesive, adding a rat-bite-proof composite additive, uniformly mixing, and naturally cooling to room temperature; and (4) coating and curing. The addition amount of the rat-bite-proof additive for the adhesive layer is less than 0.4%, the stripping force of the adhesive tape is greater than or equal to 3.0 N / cm while the rat-bite-proof performance is ensured, the lasting adhesion at 80 DEG C is greater than 24 hours, cohesive failure is avoided, and the rat-bite-proof performance and the adhesive property are both considered.

The invention provides a preparation method of an antibacterial bio-based waterborne polyurethane coating material containing a capsaicin derivative. The core innovation of the method is as follows: a natural biomass product paeonol is taken as an initial raw material, a dihydroxyl-containing capsaicin derivative monomer is designed and synthesized through an esterification reaction and a click chemical reaction initiated by ultraviolet light, and then the dihydroxyl-containing capsaicin derivative monomer is taken as a functional chain extender and is introduced into a polyurethane matrix in a chemical bonding manner. The antibacterial agent selected by the invention is derived from a natural biomass material, so that not only is the replacement of petrochemical resources by bio-based raw materials realized, but also the water-based system is adopted, and the green and environment-friendly requirements are met. The preparation method provided by the invention can effectively solve the key problem that the traditional physical blending antibacterial agent is easy to migrate and escape from the coating, so that the antibacterial property is not lasting, and the prepared bio-based coating has good film-forming property, transparency and lasting antibacterial function.

The utility model discloses a fireproof soft optical cable for ships, and relates to the technical field of optical cables. The low-smoke halogen-free optical cable comprises an inner core, the inner core is composed of four optical fibers wrapped by tight wrapping layers, an aramid fiber layer is arranged outside the inner core, a low-smoke halogen-free outer sheath is arranged on the outermost side of the aramid fiber layer, and the inner surface and the outer surface of the low-smoke halogen-free outer sheath are coated with a first capsaicin layer and a second capsaicin layer respectively. A plurality of groups of functional blocks are arranged outside the low-smoke halogen-free outer sheath in an annular array, and the second pepper layer is also coated on the side part of the outer surface of the functional blocks; each group of functional blocks are linearly distributed along the rear side of the low-smoke halogen-free outer sheath, and every two groups of adjacent functional blocks are distributed in a staggered manner; a built-in cavity is formed in the functional block, the interior of the built-in cavity is coated with a third capsaicin layer, and by arranging the first capsaicin layer, the second capsaicin layer and the third capsaicin layer, the function of preventing the optical cable from being bitten by rats is achieved.