64 results about "Myrcene" patented technology

The invention belongs to the technical field of bioengineering, and particularly relates to an application of EcorOBP7 in combination with odor information molecules, and the nucleotide sequence of the EcorOBP7 is as shown in SEQ ID NO.1; the odor information molecules comprise at least one of (E)-beta-farnesene, (E)-beta-myrcene, 3-methylbutyraldehyde, (Z)-beta-ocimene, linalool and cis-acetamino acetate. The odor information molecules are used for detecting the odor of the odor information molecules, and the odor information molecules comprise at least one of (E)-beta-farnesene and (E)-beta-myrcene. The invention finds that EcorOBP7 is a broad-spectrum binding protein, can interact with various information molecules, and can be strongly bound with substances such as (E)-beta-farnesene and cis-acetamido acetate, so that EcorOBP7 can sense odor molecules in the environment through EcorOBP7 highly expressed on antennas of EcorOBP7. Female insects can find proper hosts and spawning sites by distinguishing volatile substances of plants, male insects can find the female insects for mating through perceptual pheromones, and it is indicated that the protein can adjust the foraging and spawning behaviors of eutrophus maculans.

The invention relates to the technical field of linalool synthesis, in particular to a decoloring and aroma-keeping method for synthesizing linalool, which comprises the following specific steps: S1, cracking generation: heating beta-pinene to high temperature, and cracking the beta-pinene to generate myrcene; s2, rapid cooling: rapidly cooling the split product myrcene to avoid side reaction; s3, crude sample generation: in the presence of an acid catalyst, myrcene reacts with water to generate linalool, the reaction temperature is 40-80 DEG C, and the reaction time is 4-12 hours; s4, neutralizing the crude sample: after the reaction is finished, neutralizing residual acid by using a sodium bicarbonate solution, and separating an organic phase by using a separating funnel; s5, washing the crude sample: washing the organic layer to be neutral, and removing water-soluble impurities at the same time; s6, purifying the crude sample: adding anhydrous sodium sulfate to dry an organic layer. According to the decoloring and fragrance-keeping method used in the invention, the synthesized linalool is easy to decolor and natural in fragrance, can easily meet the standards of food additives and spice supplies, and has a wide application prospect.

The invention discloses a lactobacillus brevis SMF L6 strain for improving the characteristic flavor of fermented fish and application thereof, and belongs to the technical field of aquatic product processing. According to the method disclosed by the invention, low-temperature fermentation is carried out by utilizing a sake lactobacillus wide cloth SMF L6 direct vat set fermentation inoculant to regulate and control the flavor; the method can effectively promote the production of flavor substances such as n-hexyl alcohol, eudesmol, 2-ethylhexyl alcohol, 4-platycladi alcohol, linalool, 4-terpene alcohol, alpha-terpilenol, piperonone, beta-myrcene, alpha-terpinene, D-limonene, beta-phellandrene, gamma-terpinene and the like in the fermented fish. The content of pungent smell and fishy smell substances such as acetic acid, p-xylene, o-xylene, trimethylamine, methyl mercaptan and carbon disulfide is reduced.

An antifungal composition including a first essential oil, and a second essential oil, where the composition is configured to reduce disease onset, pathogen spread, or a combination thereof. Further, an antifungal compound including one or more aroma compounds selected from 4-(4-hydroxyphenyl)-2-butanone, furaneol, ethyl methylphenylglycidate, ethyl hexanoate, ethyl butanoate, beta-ionone, alpha-ionone, (R)-(+)-limonene, (S)-(-)-limonene, cis-3-Hexen-1-ol, nerol, linalool, 2-heptanone, alpha-terpineol, beta-damascenone, β-caryophyllene, ethyl 2-methylbutanoate, β-myrcene, gamma-octalactone, alpha-humulene, nerolidol, (E,E)-2,4-decadienal, (E,E)-α-farnesene, vanillin, phenylethyl acetate, citral, 3-methylbutan-1-ol, or a combination thereof.

The invention provides a compound feed additive capable of improving the flavor of eggs, a preparation technology and a compound feed, and relates to the technical field of feed preparation.Main components in shaddock peel are analyzed, the main components influencing the flavor of the eggs are screened out, and chemical components and shaddock peel powder are adopted to prepare the compound feed additive. The grapefruit flavor extract (active ingredients such as limonene, polyphenols and the like) prepared on the basis of the grapefruit peel powder. The preparation method comprises the following steps: compounding the raw materials in parts by weight: 20-40 parts of linalool, 5-10 parts of linalyl acetate, 2-4 parts of limonene, 1-2 parts of vanillyl alcohol, 0.7-1.4 parts of geranyl acetate, 5-10 parts of myrcene, 80 parts of pomelo peel powder, 150 parts of a carrier and 70 parts of a pomelo flavor extract; the total addition amount of the shaddock peel powder in the basal feed is reduced from 2% to 0.1%, a good flavor improvement effect can be maintained, and dependence on shaddock peel raw materials is greatly reduced.

The invention relates to the technical field of admixtures, in particular to a manganese slag concrete admixture and a preparation method thereof.The manganese slag concrete admixture is prepared from, by weight, 65-75 parts of ground manganese slag, 10-15 parts of modified metakaolin, 5-8 parts of slag powder, 4-6 parts of gypsum, 3-5 parts of limestone powder, 2-4 parts of alkali activator, 0.3-0.6 part of water retention thickener and 0.5-1 part of polycarboxylate superplasticizer. A layer of itaconic anhydride-myrcene copolymer is grafted on the surface of the modified metakaolin through a covalent ester bond, so that performance guarantee is provided for large-dosage utilization of the manganese slag, and resource utilization of the manganese slag is realized on the premise of meeting the requirement of high-performance concrete.

The present application relates to a fragrance composition reproducing the fragrance of white lotus and a skin external composition and a fragrance product containing the fragrance composition reproducing the fragrance of white lotus, and particularly relates to a fragrance composition reproducing the fragrance of white lotus with excellent preference by adding 2-phenylethanol to pentadecane, p-xylene, heptadecane, sabinene, limonene, myrcene, alpha-terpineol, etc. analyzed by SPME method. The fragrance composition provided by the present application contains pentadecane, p-xylene, heptadecane, sabinene, limonene, myrcene, alpha-terpineol, etc. which are main components of the fragrance of white lotus, and also contains 2-phenylethanol, thereby reproducing the fragrance of white lotus and improving the preference of the fragrance.

Provided are compositions comprising terpene mixtures consisting of 1000-4500 ppm myrcene, 1000-4000 ppm terpineol, 1000-5500 ppm caryophyllene and 1000-45000 ppm nerolidol; 1000-4500 ppm alpha-pinene, 1000-4000 ppm sabinene, 1000-4000 ppm limonene, 500-4000 ppm borneol and 1000-4500 ppm caryophyllene; 1000-4500 ppm alpha-pinene, 1000-4000 ppm linalool, 1000-4000 ppm terpineol, 1000-4000 ppm borneol, 1000-4500 ppm caryophyllene and 1000-4000 ppm nerolidol; 1000-4000 ppm myrcene, 500-5000 ppm linalool, 1000-4500 ppm caryophyllene and 500-4500 ppm nerolidol; or 1000-5500 ppm alpha-pinene, 1000-4000 ppm limonene, 500-4000 ppm linalool and 1000-4500 ppm caryophyllene, and uses in therapy.

The invention provides a pharmaceutical composition and application thereof, and the pharmaceutical composition comprises alpha-pinene, p-cymene, beta-myrcene and beta-phellandrene. The pharmaceutical composition has good inhibitory activity on rhinoviruses and can be used for relieving cough symptoms.

The invention discloses a black tea processing method for directionally releasing sweet flower fragrance characteristic components based on exogenous enzyme targeted regulation and control of glucoside hydrolysis. The black tea processing method comprises the following steps: withering fresh leaves, performing enzymatic treatment, performing gradient rolling, performing temperature-controlled humidity-controlled fermentation, and performing gross fire-spreading airing-complete fire staged drying on the fermented tea leaves, an enzyme solution sprayed for enzymatic treatment comprises one or more of an alpha-galactosidase solution with the activity being 0.5 to 0.6 U / mL, a beta-glucosidase solution with the activity being 0.6 to 0.7 U / mL, a cellulase solution with the activity being 200 to 210 U / mL and a papain solution with the activity being 1600 to 1700 U / mL; the sweet flower fragrance characteristic components comprise at least one of beta-myrcene, junifolene, citral, linalool, methyl salicylate, geraniol and nerol. The method solves the industrial problems of insufficient release of sweet flower fragrance characteristics, poor process stability and high dependence degree of raw materials in traditional black tea processing.

The present invention addresses the problem of providing a low-alcohol beer-like beverage having a long duration of good flavor. [Solution] A low-alcohol beer-like beverage containing a wort fermentation broth, containing a highly hydrophobic aroma component having a LogP of 3.0-4.3 at a concentration of 150-400 ppb, and having an alcohol concentration of 4 v / v% or less, the highly hydrophobic aroma component containing a terpene-based compound and an ester-based compound, the terpene compound comprises at least one selected from linalool and myrcene, the ester compound comprises ethyl caprylate, and the ratio of the terpene compound to the ester compound is 0.04-0.2.

The application discloses a high-softening-point terpene styrene resin and a preparation method thereof, and belongs to the technical field of polymer materials. The technical scheme is as follows: a high-softening-point terpene styrene resin is prepared by the following technical scheme: a preparation method of a high-softening-point terpene styrene resin comprises the following steps: S1, mixing styrene and myrcene to obtain a mixed monomer; S2, uniformly mixing butyl acetate and a catalyst at a temperature of less than or equal to 15 DEG C; S3, adding the mixed monomer dropwise when the temperature of the system in step S2 is less than or equal to 10 DEG C, and after the dropwise addition is completed, heat preservation and discharging are carried out to obtain a polymerization liquid; and S4, distilling the polymerization liquid after the polymerization liquid is washed to neutral with hot water to obtain the high-softening-point terpene styrene resin. The combination of styrene, myrcene and butyl acetate can form the terpene styrene resin with higher molecular weight and longer molecular chain, so that the softening point of the terpene styrene resin is greater than or equal to 130 DEG C.

Disclosed is a compound essential oil for improving dull skin, which comprises the following components: oleic acid, linoleic acid, palmitic acid, stearic acid, limonene, α-pinene, linalool, palmitoleic acid, eicosanoic acid, squalene, α-copaene, cis-11-eicosenoic acid, β-pinene, trans-caryophyllene, 3-thujene, camphene, behenic acid, myristic acid, p-cymene, (+)-δ-cadinene, menthol, linolenic acid, caprylic acid, menthone, capric acid, sabinene, and myrcene. The compound essential oil has excellent effects of skin whitening, brightening, and moistening.

The present invention relates to a composition comprising delta-9-tetrahydrocannabinol (THC), alpha-bisabolol, guaiol, beta-caryophyllene and at least one terpene selected from the group consisting of linalool, alpha-humulene, nerolidol, caryophyllene oxide, alpha-pinene, camphene, beta-pinene, beta-myrcene, limonene, eucalyptol, ocimene, gamma-terpinene, terpinolene, alpha-terpinene, para-cymene, isopulegol and geraniol. The invention also relates to a pharmaceutical formulation comprising such composition. The pharmaceutical formulation according to the present invention may be used in medicine, specifically in the treatment and / or prevention of diseases associated with pain such as chronic cancer pain, somatic pain, visceral pain, central neuropathic pain, peripheral neuropathic pain or complex pain syndromes.

This invention belongs to the field of microbial metabolic engineering and biotechnology applications, specifically relating to an engineered bacterium for synthesizing monoterpenoid compounds, its construction method, and its applications. The construction method involves using *Hansenula polymorpha* as a host, regulating the mevalonate pathway in its cytoplasm, and overexpressing monoterpene synthase to obtain the engineered bacterium; or, overexpressing monoterpene synthase and the mevalonate pathway in peroxisomes to obtain the engineered bacterium. The engineered bacterium constructed in this application can efficiently synthesize monoterpenoid compounds such as geraniol, β-myrcene, and dextrorotatory borneol.

The present invention provides a distilled spirit having an orange aroma, and a method for producing the same. [Solution] In a distilled spirit, an extract of juniper berry fruit is added, and the concentration of myrcene per 100 v / v% alcohol concentration is adjusted to 30 ppm or more, the concentration of limonene per 100 v / v% alcohol concentration is adjusted to 15 ppm or more, the concentration of α-pinene per 100 v / v% alcohol concentration is adjusted to 65 ppm or less, and the concentration of terpinen-4-ol per 100 v / v% alcohol concentration is adjusted to 25 ppm or less.

The invention relates to polymer cement waterproof mortar and a waterproof reinforcement structure of a building facade, the polymer cement waterproof mortar contains a powder component and a liquid component, and the mass ratio of the powder component to the liquid component is (4-5): 1; the powder component comprises Portland cement, ultra-white feldspar powder, metakaolin and aggregate; the liquid material component comprises a styrene-acrylic emulsion, an associative thickening agent and water; the styrene-acrylic emulsion is prepared from the following raw materials: styrene, acrylic ester, N-hydroxymethyl acrylamide, allyl (tert-butyl) dimethyl silicon, myrcene, a buffering agent, an initiator, a silane coupling agent, an emulsifier, a defoaming agent, a sterilizing agent and water. The polymer cement waterproof mortar provided by the invention has good mechanical properties, impermeability and weather resistance.

The application provides a synthesis method of high-purity high-myrcene, comprising the following steps: carrying out [2+2] cycloaddition reaction of 8-methyl-2,7-nonadiene-4-ketone and ethenone to obtain a beta-lactone intermediate, and carrying out retro-cycloaddition reaction of the beta-lactone intermediate to obtain high-purity high-myrcene product. The synthesis route of the application is novel and short, high-myrcene is prepared simply and efficiently by taking simple and easily obtained 8-methyl-2,7-nonadiene-4-ketone and ethenone as raw materials through two-step reaction of cycloaddition and ring-opening, the overall yield of the route is high, compared with the traditional process of Grignard addition-dehydration method, the content of the target isomer is significantly improved, and the development of high-myrcene downstream derivatives is facilitated.

The invention discloses myrcene / conjugated diene copolymer type bio-based low-temperature-resistant rubber and a preparation method and application thereof, and belongs to the technical field of chemical synthetic rubbers, raw materials comprise a myrcene monomer and a conjugated diene monomer, and the myrcene / conjugated diene copolymer type bio-based low-temperature-resistant rubber is prepared by adopting a low-temperature redox emulsion polymerization method. According to the myrcene / conjugated diene copolymer type bio-based low-temperature-resistant rubber as well as the preparation method and the application thereof, a low-temperature oxidation-reduction emulsion polymerization method is low in production cost, simple in process, environmentally friendly and suitable for industrial production; the prepared myrcene / conjugated diene copolymer type bio-based low-temperature-resistant rubber has better low-temperature resistance, and has huge application potential in the field of winter tire tread rubber.

To provide a copolymer capable of suppressing an exothermic temperature on polymerization, good in solubility to a solvent, and capable of obtaining a lubricant oil exhibiting excellent friction reduction performance.SOLUTION: A copolymer of the present invention has a constitutional unit (a1) derived from a radically polymerizable compound, and a constitutional unit (a2) derived from a non-conjugated olefin, wherein a ratio of the constitutional unit (a2) derived from the non-conjugated olefin is 0.6 to 20 mass% based on the total 100 mass% of all constitutional units of the copolymer. As an example, the radically polymerizable compound may include at least one selected from the group consisting of (meth)acryloyl group-containing compounds and myrcene, and the non-conjugated olefin may include a cyclic monoterpene.SELECTED DRAWING: None

The invention relates to the technical field of high polymer materials, and particularly discloses a high-strength, high-toughness and low-temperature-resistant nylon modified material for an automobile air conditioner pipe as well as a preparation method and application of the nylon modified material. The nylon modified material is prepared from the following raw materials: PA66, PA6, a toughening agent, a poly (isoprene-myrcene) elastomer, a low-temperature-resistant additive, a low-precipitation antioxidant, zinc stearate and a modified filler. Wherein layered silicate mineral powder in the modified filler is uniformly dispersed in a nylon matrix after being synergistically modified by formamide and maleic anhydride grafted polyethylene, and when the nylon matrix is subjected to an external force, the transmission speed of the external force is delayed, and residual stress is dispersed in the matrix, so that the aims of toughening and strengthening are fulfilled; and the modified filler, the poly (isoprene-myrcene) elastomer and the low-temperature-resistant additive act together, so that the prepared nylon modified material keeps excellent mechanical properties and stability in a wide temperature range.

The invention belongs to the technical field of analysis and detection of natural perfume, and particularly relates to a method for simultaneously detecting six chemical substances in natural perfume. The detection method comprises the following steps: (1) carrying out mixed extraction on natural perfume by using an internal standard extraction agent to prepare a sample solution to be detected; (2) carrying out gas chromatography-mass spectrometry analysis on the sample solution to be detected, and respectively obtaining the contents of ethyl acrylate, pyridine, myrcene, longifolenone, benzophenone and methyleugenol according to the standard curve and the mass spectrum; a chromatographic column for the gas chromatography-mass spectrometry analysis is a weak-polarity stationary phase chromatographic column. According to the method disclosed by the invention, the to-be-detected target object can be efficiently extracted by selecting the styrax propionate and the dichloromethane as internal standard extraction agents, accurate analysis of the six chemical substances is realized by combining a weak-polarity stationary phase chromatographic column, matrix interference is eliminated, and the detection accuracy is high. And simultaneous determination of the six chemical substances in different dosage forms such as tincture, extract, essential oil, absolute oil and the like and the natural perfume with matrix components is realized.

The present invention discloses a vermilion hairy moth attractant composition and application. The active substances of the composition are composed of 1 to 10 μg / μL of cis-9-hexadecenal, 10 to 100 μg / μL of (Z,Z,Z)-9,12,15-octadecatrienal, 10 to 100 μg / μL of (-)-α-pinene, 10 to 100 μg / μL of β-myrcene, 10 to 100 μg / μL of β-ocimene, and 1 to 100 μg / μL of β-caryophyllene. The active substances can be further obtained by using paraffin as a solvent to obtain an attractant. The attractant has a significant attracting effect, is used in a small amount, is easy to use, and has a strong target property. The attractant can be simultaneously applied to the vermilion hairy moth prevention and control and population dynamics monitoring, and is of great significance for the research and development of new technologies for the green prevention and control of the vermilion hairy moth.

The invention provides white spirit rich in humulus lupulus flavor, raw materials are pretreated, fermented, distilled and aged to obtain the white spirit, humulus lupulus is added in a fermentation stage or a distillation stage to endow the white spirit with rich fragrance and taste, the humulus lupulus is added in the fermentation stage, and the distilled white spirit comprises a fraction A1 and a fraction A2, humulus lupulus is added in the distillation stage, Baijiu obtained through distillation contains a fraction B1 and a fraction B2, and a fraction A1 and a fraction A2 of the Baijiu or the fraction B1 and the fraction B2 of the Baijiu contain the following volatile components: 5-14 mg / L of myrcene, 0-12 mg / L of limonene and 4-7 mg / L of linalool. The humulus lupulus is used in the production process of solid-state fermentation and distillation of the white spirit, and the components of the humulus lupulus are ensured to be effectively fused into the white spirit body by optimizing process parameters without damaging the traditional flavor of the white spirit.

This invention relates to the terpene synthase AaTPS48 from Artemisia argyi, its encoding gene, and its applications. It provides an important foundation for utilizing genetic engineering techniques to increase the content of the active components myrcene and (trans)-β-farnesene in Artemisia argyi, or to directly produce myrcene and (trans)-β-farnesene. The technical solution is that the terpene synthase AaTPS48 is a protein of the following a) or b) or c): a) the amino acid sequence of the protein shown in SEQ ID No. 1; b) a fusion protein obtained by attaching a tag to the N-terminus and / or C-terminus of the protein shown in SEQ ID No. 1; c) a protein with the same function obtained by substituting and / or deleting and / or adding one or more amino acid residues of the amino acid sequence shown in SEQ ID No. 1. The AaTPS48 protein of this invention can catalyze both GPP to form myrcene and FPP to form (trans)-β-farnesene, playing an important role in the biosynthesis of myrcene, (trans)-β-farnesene, and other terpene compounds in Artemisia argyi.

Provided herein are compositions and methods for producing myrcene by culturing genetically modified microbial host cells that express a myrcene synthase and optionally a geranyl pyroplosphate synthase. Also provided herein are isolated nucleic acid molecules that encode myrcene synthase variants derived from the Ocimum species myrcene synthase, which comprise one or more amino acid substitutions that improve in vivo performance of myrcene synthase in genetically modified microbial host cells. Also provided herein are isolated myrcene synthase variants that exhibit an improved activity for converting geranyl diphosphate into myrcene.

The invention discloses a high-softening-point terpene styrene resin and a preparation method thereof, and belongs to the technical field of high polymer materials, and the key point of the technical scheme is that the high-softening-point terpene styrene resin adopts the following technical scheme: the preparation method of the high-softening-point terpene styrene resin is used for preparing the high-softening-point terpene styrene resin. Comprising the following steps: S1, mixing styrene and myrcene to obtain a mixed monomer; s2, uniformly mixing butyl acetate and a catalyst at the temperature of less than or equal to 15 DEG C; s3, when the temperature of the system in the step S2 is less than or equal to 10 DEG C, dropwise adding a mixed monomer, and after dropwise adding, carrying out heat preservation and discharging to obtain a polymer solution; s4, the polymer liquid is washed with hot water to be neutral and then distilled, and the high-softening-point terpene-styrene resin is obtained.According to the method, styrene, myrcene and butyl acetate are matched, the terpene-styrene resin higher in molecular weight and longer in molecular chain can be formed, and the softening point of the terpene-styrene resin is made to be larger than or equal to 130 DEG C.

The application provides a Chinese trichopoda japonica attractant and a preparation method and application thereof, and belongs to the technical field of biological pest control. The active ingredient of the Chinese trichopoda japonica attractant is composed of volatile substances of potentilla chinensis, and the volatile substances include (Z)-3-hexen-1-ol 10-15 parts, gamma-terpinene 10-20 parts, trans-beta-myrcene 60-70 parts and nerolidol 0.5-1 part in volume fraction. The Chinese trichopoda japonica attractant as the effective component is combined with a diluent to further obtain an attractant preparation. The volatile substances in the potentilla chinensis are used to perform olfactory behavior response on the Chinese trichopoda japonica and are applied, the obtained attractant or attractant preparation has obvious attracting effect, is harmless to other natural enemies and is environment-friendly, and provides a new reference means for biological control.

The invention relates to a process for preparing a polyisoolefin homo- or copolymer, preferably selected from butyl rubber, polyisobutylene and poly(isobutylene-co-para methyl styrene), the process comprising the step of polymerizing at least one isoolefin monomer and optionally at least one copolymerizable monomer, preferably multiolefin monomer, in the presence of a preformed polymeric stabilizer. The preformed polymeric stabilizer comprises repeating units derived from styrene and repeating units having pendant linear or branched saturated alkyl groups with at least 3 carbon atoms. Preferably, the repeating units with the pendant alkyl groups are derived from monoterpenes, especially myrcene or ocimene, or sesquiterpenes, especially farnesene, and subsequently hydrogenated. The preformed polymeric stabilizer advantageously stabilizes the slurry of the polyisoolefin homo- or copolymer, preferably selected from butyl rubber, polyisobutylene and poly(isobutylene-co-para methyl styrene), that is formed during polymerization in a solvent.

The invention belongs to the field of food additives, and particularly discloses a blended houttuynia cordata flavor essence and a preparation method thereof.The blended houttuynia cordata flavor essence comprises, by mass, 3%-6% of 2-decenal, 2%-5% of 2-nonenal, 2%-6% of 2, 4-dihydroxy-2-methyl-1, 3-pentanedione, 1%-3% of 2, 4-dihydroxy-2, 4-pentanedione, 1%-3% of The formula comprises the following components in percentage by weight: 1%-3% of 1, 4-decadienal, 3%-5% of 2-decanone, 1%-3% of lauric aldehyde, 1%-2% of myrcene, 4%-7% of beta-caryophyllene, 0.5%-1.5% of cis-3-hexene-1-ol, 2%-3% of 2-hexenal, 2%-5% of linalool, 0.5%-1.5% of 1-octylene-3-ol, 0.5%-1.5% of perillaldehyde, 2%-3% of 2-amyl furan, 1%-3% of eucalyptus oil, 1%-2% of eugenol and the balance of water. The composition is prepared from 0.5%-1.5% of methyl dihydrojasmonate, 3%-5% of cis-6-nonene-1-ol, 1%-3% of 2-acetylpyridine, 1%-3% of cis-6-nonene-1-ol, 1%-3% of 2-acetylpyridine, 1%-3% of cis-6-nonene-1-ol, 1%-3% of vetiver oil and the balance of caprylic capric triglyceride. The blended houttuynia cordata flavor essence is prepared from the monomer spice for food, and has the characteristics of obvious characteristic fragrance, strong natural feeling, long fragrance retention time and high temperature resistance.