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270 results about "Tetramethylpyrazine" patented technology

Tetramethylpyrazine, also known as ligustrazine, is a chemical compound found in nattō and in fermented cocoa beans. When purified, tetramethylpyrazine is a colorless solid. It is classified as an alkylpyrazine. Its biosynthesis involves amination of acetoin, the latter derived from pyruvate. It exhibits potential nootropic and antiinflammatory activities in rats.

Injection-purpose medicine composition for improving stability of ligustrazine medicine injection formulation and preparation method of injection-purpose medicine composition

The invention discloses an injection-purpose medicine composition for improving stability of ligustrazine medicine injection formulation and a preparation method of the injection-purpose medicine composition. The injection-purpose medicine composition is prepared by the method comprising following steps: dissolving ligustrazine salt in water for injection, adjusting the pH value of the liquid medicine by adding citric acid and / or sodium citrate used as a pH regulator, wherein the dosage of the citric acid and / or sodium citrate ranges from (0.1mg to 200.0mg) / 100ml. In the invention, pH value of the injection liquid can be more stable, the content of ligustrazine degradation substance is greatly reduced compared with that of the prior art, the clarity of the ligustrazine injection liquid is improved under the condition of not using other cosolvents to increase the clinical application risk, particularly, the problems of small white spots, white blocks and solution turbidity are solved under the condition that the ligustrazine injection liquid is stored for a long time by adopting the prior art, and the medicine composition ensures that the inspection of visible foreign substances of the product is in accordance to the formulation of medicine quality standard, and is convenient for clinical medication and popularization.
Owner:SICHUAN SUNNYHOPE PHARM CO LTD

Bacillus subtilis highly producing tetramethylpyrazine and method thereof for fermentation producing tetramethylpyrazine

The invention relates to a bacillus subtilis highly producing tetramethylpyrazine and a method thereof for fermentation producing tetramethylpyrazine, and belongs to the technical field of bio-engineering. The invention discloses a Bacillus subtilis XZ1124 which can highly produce tetramethylpyrazine, and is preserved in CCTCC, and the preservation number is CCTCC NO: M 208157. The strain is made of Maotai-flavor liquor and high temperature Daqu; the strain is identified as Bacillus subtilis based on colony, cell form, physiological and biochemical characteristics and 16S rRNA gene sequence comparative result thereof. The strain can utilizes glucose, sucrose, molasses and soybean cake powder as substrate, and increases the output of tetramethylpyrazine through accumulating a great deal of endogenous precursors, so as to solve the problems of low product density, exogenous adding precursor requirement, and low precursor utilization rate in tetramethylpyrazine production through microbe fermentation. When sucrose and soybean cake powder are used as substrate, 4.08 g / L of tetramethylpyrazine can obtained through shaking culture of the raw material for 120 h at the temperature of 37 DEG C.
Owner:JIANGNAN UNIV

Method and strain for producing tetramethylpyrazine

The invention discloses a method and a strain for producing tetramethylpyrazine (TTMP), in particular a two-step production process that a microorganism accumulates precursor acetoin by using the fermentation of reducing sugar and the acetoin and ammonia undergo a non-enzymatic reaction to synthesize the TTMP, and belongs to the technical field of bioengineering. The microorganism is any one of bacillus subtilis (CCTCC NO:M 208157), bacillus licheniformis (CGMCC NO:3961), bacillus licheniformis (CGMCC NO:3962) and bacillus licheniformis (CGMCC NO:3963). The strain obtains biomass and accumulates endogenous precursor acetoin by using the fermentation of the reducing sugar, and the acetoin and the ammonia in a fermentation system undergo the non-enzymatic reaction to synthesize the TTMP. The method has the advantages that: the obtained bacteria quantity is higher, the accumulation amount of the acetoin is effectively improved (38 to 44g / L); the high-concentration endogenous precursor acetoin and the ammonia can quickly react under proper conditions to form the TTMP (16 to 20g / L); and the use ratio (40.3 percent) of precursors is obviously improved due to the accumulation of endogenous acetoin and an in-situ fermentation environment.
Owner:JIANGNAN UNIV

Treatment and diagnosis of central nervous system disorders

The invention relates to the use of tetramethylpyrazine (TMP) for the treatment of patients at risk for the development of, or diagnosed as having, CNS disorders such as Alzheimer's disease (AD), Parkinson's disease (PD), glaucoma, and Huntington's Disease (HD), as well as traumatic brain injury (TBI). The present invention also relates to the use of retinal imaging to diagnose and monitor efficacy of treatments for such CNS disorders.
Owner:RGT UNIV OF CALIFORNIA

Production method of strong aromatic Chinese spirits

The invention discloses a production method of strong aromatic Chinese spirits. The production method comprises the following steps of: preparing fermented grains by using 1000-1200 parts of unprocessed food grains, 100-200 parts of steamed rice husk steamed, and 4000-5000 parts of middle-level fermented grains fermented at the upper row; filling the fermented grains in a steaming bucket for cooking, mixing cooking wine of the fermented grains, fermented at the upper row while cooking the raw materials so as to obtain the cooked fermented grains and large dreg wine after ending cooking; taking out the cooked grain wine and placing for aeration cooling, adding 200-250 parts of middle-temperature Daqu, 30-50 parts of bacterial mouldy bran, firstly placing 1000-1200 parts of upper fermented grains fermented at the upper row in a pit, then placing 5500-6500 parts of the grain wine obtained in the previous step in a pit, and fermenting for 60-70 days; filling 1000-1200 parts of lower fermented grains fermented at the lower row in the steaming bucket for cooking, thereby obtaining double-turn wine; and after operating once according to the steps, mixing the large dreg wine and the double-turn wine obtained in the next turns to obtain the strong aromatic Chinese spirits. The production method has the advantages that the content of tetramethylpyrazine in the strong aromatic Chinese spirits is increased, and the style of the strong aromatic Chinese spirits is not affected.
Owner:山东景芝白酒有限公司

Bacillus amyloliquefaciens and application thereof

The invention relates to a strain of bacillus amyloliquefaciens and an application thereof and belongs to the field of microorganisms. According to the bacillus amyloliquefaciens JNC-002 and the application thereof, the conservation number of the strain is China general microbiological culture collection center (CGMCC) No.5740, and the strain is separated and obtained from distiller's yeast of Sichuan jiannanchun liquor (enterprise group) limited liability company. The capacity of producing tetramethylpyrazine by the bacillus amyloliquefaciens can reach to 2.4g / L, and the bacillus amyloliquefaciens can be applied to producing the tetramethylpyrazine.
Owner:四川绵竹剑南春酒厂有限公司

Ligustrazine stilbenoids derivatives, preparation method thereof, medicament composition and use

The invention relates to a kind of ligustrazine derivant, preparation method and medicinal compound and its application, belonging to chuanxiong rhizome derivant medicine technique. The structure general formula is as that: Ar is hydroxybenzene, fluorophenyl, chlorphenyl, methylbenzene, methoxybenzene, nitrobenzene, cyanobenzene, furan group, ligustrazine or thiofuran. Said preparation method comprises following steps: mixing intermediate 2- chloromethyl- 3, 5, 6- trimethyl pyrazine and halogenated benzyl, triethyl phosphite; heating and refluxing, adding waterless tetrahydrofuran and NaH at tetrahydrofuran bath condition, dropping mixing solution of aromatic aldchyde and waterless tetrahydrofuran, stirring, extracting, drying, filtering, steaming to remove disslovant, separating residues with fast column chromatography, recrystallizing with methanol, and getting ligustrazine derivant. Said product and medical findings can be used to produce medicinal compound, and medicine for preventing angiocardiopathy and cerebrovascular diseases such as ischemic disease, atherosclerosis and coronary disease.
Owner:SHANDONG UNIV

Bacillus licheniformis, yeast prepared through same and preparation method of yeast

The invention relates to the technical field of yeast for making hard liquor, in particular to bacillus licheniformis, yeast prepared through the same and a preparation method of the yeast. The bacterial strain is named as the bacillus licheniformis according to classification and collected in the China center for type culture collection, and the collection number is CCTCC NO. M2015224; after the bacterial strain is made into a fermentation bacterium solution, the fermentation bacterium solution serving as the functional bacterium solution is inoculated onto raw materials for making the yeast to be subjected to fermentation treatment, and the yeast product is obtained. The technological process is short and easy to operate; compared with traditional yeast, the content of tetramethylpyrazine in the obtained yeast is increased by over nine times.
Owner:KWEICHOW MOUTAI COMPANY

Method for producing acetoin by vinasse fermentation and producing tetramethylpyrazine by acetoin transformation

The invention discloses a method for producing biological aromatics: acetoin and tetramethylpyrazine by taking vinasse as a raw material by utilizing microbial fermentation and belongs to the technical field of biological engineering. The method disclosed by the invention comprises the following steps of: supplementing a proper amount of glucose (0-100g / kg) into fresh vinasse of which the acidity is regulated; adding a seed culture cultured by any one of bacillus subtilis (CCTCCNO: M208157) or bacillus licheniformis (CGMCC3961, 3962, 3963); then, fermenting for 1-3 days at the temperature of 37 DEG C to produce a great amount of one of the biological aromatics: the acetoin; and on the basis, adding ammonium salt to the fermentation product to produce the other biological aromatic: the tetramethylpyrazine by acetoin transformation. The method for selectively producing the biological aromatics: the acetoin and the tetramethylpyrazine under control by taking the vinasse as the raw material through whether the ammonium salt is added or not has the outstanding advantages that not only can the biological aromatics with different high additional values be selectively obtained but also the vinasse is prevented from polluting the environment and the utilization value of the vinasse is promoted.
Owner:JIANGNAN UNIV

In-vitro culture solution for culturing swine parthenogenetic activated embryos and swine in-vitro fertilized embryos

InactiveCN103710299AImprove developmental efficiencyIncrease the number ofEmbryonic cellsCulture fluidEmbryo
The invention discloses a swine in-vitro embryo culture solution. The swine in-vitro embryo culture solution disclosed by the invention is obtained through adding ligustrazine, with the final concentration of 0.05-5.00 microgram / milliliter, into an embryo culture solution NCSU-23. A traditional Chinese medicine monomer component, namely ligustrazine, is added into the swine in-vitro embryo culture solution disclosed by the invention; shown by experiments, through carrying out in-vitro culture on the swine parthenogenetic activated embryos and the swine in-vitro fertilized embryos by using the culture solution, the development efficiency of the embryos and the number of the cell masses and total cells in blastulae can be effectively increased. The swine in-vitro embryo culture solution has the advantages that a foundation is laid for the development of other biotechnologies, medical research and animal husbandry, and meanwhile, a certain theoretical basis for clarifying the development mechanism of early swine embryos is provided.
Owner:BEIJING UNIV OF AGRI

Thienopyridine derivatives, and preparation methods and medical use thereof

ActiveCN103694250AMetabolic avoidanceSolve the problem of resistanceOrganic chemistryBlood disorderClopidogrel resistanceLiver and kidney
The invention belongs to the field of pharmaceutical chemistry technology, and particularly discloses thienopyridine derivatives, and preparation methods and a medical use thereof. Through structural modification of clopidogrel and prasugrel, a series of new thienopyridine derivative compounds are synthesized and mainly include derivatives esterified with ligustrazine formic acid and shikimic acid; the compounds go into a body, then are rapidly metabolized into effective metabolites and ligustrazine formic acid or shikimic acid, successfully keep away from metabolism of CYP2C19 enzyme, can be directly metabolized into active compounds to play a pharmacological function, thereby solving the clopidogrel resistance problem, effectively improving the compound antithrombotic activity, and also having no significant effect on hemorrhage risk; and the compounds have relatively ideal protective function on liver and kidney, and also have potential therapeutic significance for other cardiovascular diseases.
Owner:WUHAN QR PHARMA CO LTD

Medicinal composition containing bilobalide B and its preparation process and usage

The invention discloses a medicinal composition containing bilobalide B, which comprises Ligustrazine phosphate and bilobalide B by the weight ratio of 10-500 : 1. the invention also discloses the process for preparing the pharmaceutical composition.
Owner:弘和制药有限公司

High-fat flavoring wine containing healthy flavor components and preparation method thereof

ActiveCN102408967ARemarkable fragrance functionTypical wine styleAlcoholic beverage preparationMicroorganism based processesBiotechnologyFuran
The invention discloses a high-fat flavoring wine containing healthy flavor components. The high-fat flavoring wine is prepared by a method comprising the following processes: pretreating raw materials; fermenting and removing lactic acid; burdening; acidifying and fermenting; and distilling and taking out wine. The preparation method comprises the following steps: mixing yellow water and foreshot with feint and then adding composite purification enzyme for sterilization and filtration to obtain a mixed liquor; inoculating propionibacterium in the mixed liquor for fermentation to remove lactic acid; adding powder starter, powder grain and starter pest powder; adding kiln bottom mud leach liquor for seal fermentation; preparing a composite esterified bacterium liquid with a fermented material; adding the composite esterified bacterium liquid in the remained fermented material for fermentation to obtain an esterified liquor; and preparing the high-fat seasoning wine by using overgauge wine and the esterified liquid, discarding stillage and distilling and taking out wine. Ethyl caproate, ethyl lactate, ethyl acetate, ethyl butyrate, Monacolin-K, tetramethylpyrazine, soy ketone, benzofuran, 5-hydroxymethyl-2-furfural and chitin are contained in distilled spirit with the alcohol strength of 50-68V / V%. After the flavoring wine is blended with the distilled spirit, the healthy flavorcomponents are duplicated. The high-fat flavoring wine in the invention can be used as a health distilled spirit.
Owner:SICHUAN TUOPAI SHEDE WINE

Applications of tetramethylpyrazine derivative tetramethylpyrazine nitrone to prevention and treatment of brain injury diseases

The invention belongs to the field of medicament technology, and especially relates to applications of a tetramethylpyrazine derivative tetramethylpyrazine nitrone to medicament preparation as well as prevention and treatment of brain injury diseases. Experiments prove that tetramethylpyrazine nitrone can improve traumatic brain injury and brain injury after subarachnoid hemorrhage; the improvements concretely comprise the following aspects: improvement of behaviors of model rats with traumatic brain injury and subarachnoid hemorrhage, reduction of cerebral infarction areas due to traumatic brain injury, improvement of vasospasm state after subarachnoid hemorrhage, and protection of brain tissues. Mechanisms of action of tetramethylpyrazine nitrone relate to inhibition of oxidative stress injuries, inhibition of inflammatory reactions, and apoptosis resistance. Tetramethylpyrazine nitrone can be used as a medicine for preventing and treating brain injury diseases, especially traumatic brain injury and subarachnoid hemorrhage, and can be prepared into various dosage forms with medicinal carriers.
Owner:GUANGZHOU MAGPIE PHARMA

Method for producing sesame flavored white spirit high in tetramethylpyrazine content

The invention discloses a method for producing sesame flavored white spirit high in tetramethylpyrazine content, comprising the following steps of: crushing 800-900 parts of broomcorn and 100-200 parts of wheat, blending 50-100 parts of bran and 200-300 parts of stillage obtained through the previous round of steaming with starch solution evenly, and steaming the mixture in a rice steamer, thereby obtaining fermented grains; blending the obtained fermented grains with the stillage obtained through the previous round of steaming in the ratio of 1: (5-5.5) and performing aeration cooling; adding 150-200 parts of sesame flavored yeast and 200-250 parts of bran to the mixture and supplementing the starch solution, and then gathering and stacking for 2-3 days, thereby obtaining fermented residues; performing aeration cooling on the fermented residues so that the temperature thereof reaches 28-32 DEG C; sealing and fermenting in a pit for 50-60 days; and mixing 1000-1200 parts of fermented grains with 150-180 parts of steamed rice husk in the rice steamer for steaming, thereby obtaining the sesame flavored white spirit. The sesame flavored white spirit through the production process provided by the invention is obviously improved in quiet and tasteful degree, softness and comfort in contrast with the wine produced through the existing process; and the premium grade rate of the sesame flavored white spirit is improved by more than 20% in contrast with the existing process, while the content tetramethylpyrazine thereof beneficial for human body health is increased to 3000-4000 ug / L from 300-800 ug / L.
Owner:山东景芝白酒有限公司

A pure-component Chinese medicinal preparation for treating headache and its preparation process

A pure-component Chinese medicinal preparation for treating headache and its preparation process, using Gastrodia elata and Ligusticum chuanxiong as basic formulation, adopting modern flash extraction technique, combining macroporous resin, normal / reversed-phase silica gel chromatography technique and high-speed counter-current chromatography preparation technique, extracting a volatile oil fraction containing butylphthalide as main component, an alkaloid fraction containing ligustrazine as main component, an organic acid fraction containing ferulic acid as main component, a lactone fraction containing ligustilide as main component, a phenols fraction containing gastrodine as main component and a polysaccharide fraction containing polysaccharides from Ligusticum chuanxiong as main component. The Chinese medicinal preparation provided by the invention has definite curative effect, definite composition, controllable quality, and simple operation method.
Owner:HUNAN UNIV OF CHINESE MEDICINE

Method for synthesizing target compound-ligustrazine derivant preventing cerebrovascular disease

The present invention relates to one kind of compound and its preparation process. The compound is designed for inhibiting the function of C-reactive protein likely to cause atherosclerosis and myocardial infarction so as to prevent and treat cardiac vascular diseases. By using ligustrazine derivative 2, 5-dihydroxymethyl-3, 6-dimethyl pyrazine as precursor and through a series of reaction, compound 2, 5-bis(choline phosphate) methyl-3, 6-dimethyl pyrazine capable of inhibiting the activity of C-reactive protein is prepared.
Owner:CHONGQING MEDICAL UNIVERSITY

Novel fried wheat essence

InactiveCN101602983ACover up moldy smellGreat tasteEssential-oils/perfumesFood scienceTetramethyl pyrazine2-acetylthiophene
The invention discloses a novel fried wheat essence, comprising 2-acetylthiophene, furanone, 2,3-pentanedione, 3-methyl-2-cyclohexenyl-1-one, 2,3,5,6-tetramethylpyrazine, 5-methyl-6,7-dihydrocyclopentylpyrazine, 2-acetylpyrazine, tricin, furfuryl thioacetate, biradical disulfide and propylene glycol. The invention not only has fried wheat fragrance and but also can be used in the coarse grain beverage after baking, in particular to wheat smell milk beverage. Meanwhile, the invention can better enhance the mouthfeel and cover the bilgy odour and musty taste of legume coarse grain in base materials.
Owner:广州市凯虹香精香料有限公司

Drug administration preparations of ligustrazine for nasal mucosa and method for preparing the same

The invention belongs to medical technical field and discloses nasal mucosa medication agent of tetramethylpyrazine and the preparation method. The agent contains tetramethylpyrazine, pharmaceutical excipient and absorption enhancer. The weight percentage is 1:0.1 to 100:0.1 to 10. The tetramethylpyrazine includes tetramethylpyrazine prepared in various methods and salts of tetramethylpyrazine. Formula dosage of tetramethylpyrazine is put into absorption enhancer and additional pharmaceutical solutions of suitable concentration prepared in advance to produce nasal mucosa medication agent, such as nasal drops, spray, aerosol, microsphere agent, liposomes, etc. Via the special physiological structure of nasal cavity, the agent medicates via nasal mucosa and allows tetramethylpyrazine bypasses the blood-brain barrier to enhance the distribution of medicine in brain tissue. The drug can be used to treat migraine, cerebral ischemia, cerebral embolism and emergencies such as angina pectoris, coronary heart disease, myocardial infarction, etc, and the drug has the advantages of complete and rapid absorption, high treating effects, high stability, and few side effects.
Owner:SHENYANG PHARMA UNIVERSITY

Compound preparation for treating Alzheimer's disease and preparation method thereof

The invention relates to a compound preparation for treating Alzheimer's disease, which is prepared by combining huperzine A and ligustrazine phosphate according to certain proportion. The compound preparation has reasonable compatibility; all components in the compound preparation have the role of collaboratively protecting the nervous system and can carry out intervention on the pathogenesis of the Alzheimer's disease from multiple targets; and the compound preparation disclosed by the invention has an important clinical application meaning.
Owner:王义明

Ligustrazine microcosmic salt liposome medicine and preparing method

The invention relates to a tetramethylpyrazine phosphate liposome drug and a preparation method; wherein, the drug is characterized in that: the effective efficacy components and weight accounts of the liposome drug are as following: a mixture 200 to330 with a weight ratio 4 to 1 of egg yolk lecithin and sheep cerebral lecithin, a mixture 170 to 280 with a weight ratio 3 to 1of stigmasterol and campestrol, reduction glutathione 2.5 to 10, tetramethylpyrazine phosphate 15 to 25, a mixture 720 to 1200 with a weight ratio 1 : 0.01 to 0.05 : 0.02 to 0.07 of tert-butyl alcohol, ethanol, acetone, a mixture 140 to 160 with a weight ratio 4:05 to 1 of polyethylene glycol-2000 and tween 801, and hydroxyl propyl methyl cellulose 100 to 120. The invention also provides the preparation method for the liposome drugs. The invention has the advantages of adopting the provided drugs, enabling to decrease the drug dosage by two third and once a day, and improving the efficacy above fifteen percent.
Owner:HUNAN KANGDU PHARMA

Tetramethylpyrazine substituted p-hydroxybenzyl alcohol analog derivative (LQC-F) having neuroprotection activity, and applications thereof

The invention relates to a tetramethylpyrazine substituted p-hydroxybenzyl alcohol analog derivative (LQC-F) having neuroprotection activity, and applications thereof, and provides a class of tetramethylpyrazine substituted p-hydroxybenzyl alcohol analog derivatives having a structure general formula 1, wherein the compound comprises a p-hydroxybenzyl alcohol analog mother nucleus and a substituent containing a tetramethylpyrazine structure, the structure general formula is represented by the formula 1, R1 is any one selected from -OH, -NH2, 3,5,6-trimethyltetramethylpyrazine-2-methyleneoxy, 3,5,6-trimethyltetramethylpyrazine-2-formyloxy and 3,5,6-trimethyltetramethylpyrazine-2-formamide, R2 is any one selected from -H and -OCH3, R3 is any one selected from -OH, 3,5,6-trimethyltetramethylpyrazine-2-methylene and 3,5,6-trimethyltetramethylpyrazine-2-formyl, at least one of R1-R3 is a substituent containing a tetramethylpyrazine structure, and n is 1 or 2. The invention further providesa preparation method of the derivative, and applications of the derivative in preparation of drugs for treatment of brain nerve injury and sequela thereof. The formula 1 is defined in the specification.
Owner:雷鹏程

Ginkgo medicine composition, its preparing method and its use

The gingko medicine composition consists of gingko leaf extract and ligustrazine phosphate in the amount of 1-100 times of gingko leaf extract. The preparation process of the medicine composition is also disclosed. As the compound preparation, the medicine composition of the present invention has the complementary and synergistic effects of gingko leaf extract and ligustrazine phosphate, including promoting blood circulation to disperse blood clots, resisting platelet aggregation, dilating blood vessel and improving microcirculation, and may be used in preparing medicine for ischemic cardiac and cerebral vascular diseases.
Owner:弘和制药有限公司

Rheinic acid derivatives and treatment application thereof

The invention discloses rheinic acid derivatives and treatment application thereof, belonging to the field of medicine. A compound with a bioactivity is a compound as shown in a general formula (I) or salts, solvates or hydrates thereof, wherein X3 is the residue of the compound with the bioactivity, and X1 and X2 are independently H or acetyl individually; X3 is the residue of ligustrazine, arginine, lysine or carnitine; X3 is the residue of meglumine, glucosamine or glucose; and X3 is the residue of meglumine, glucosamine or glucose acetylate. The treatment application is as follows: the rheinic acid derivatives can be used for preparation of medicaments for treating or preventing heart cerebrovascular diseases, and can also be used for preparation of medicaments for treating or preventing diseases related to T-cell proliferation or diseases mediated by pro-inflammatory cytokines.
Owner:南通东湖国际商务服务有限公司

Fermented blank bean beef powder essence and preparation method thereof

The invention discloses fermented blank bean beef powder essence. The fermented blank bean beef powder essence is prepared from the following raw materials in parts by weight: 5 to 20 parts of beef, 5 to 20 parts of water, 0.05 to 0.1 parts of protease, 5 to 10 parts of glucose, 10 to 20 parts of HVP, 15 to 25 parts of yeast powder, 5 to 10 parts of beef tallow, 0.8 to 2 parts of threonine, 0.5 to 1.8 parts of lysine, 1 to 2 parts of cysteine, 0.5 to 1.5 parts of glycine, 0.5 to 1 part of methionine, 10 to 20 parts of starch, 5 to 10 parts of maltodextrin, 5 to 10 parts of monosodium glutamate, 2 to 5 parts of salt, 2 to 5 parts of fermented blank bean essence, and 0.05 to 0.2 parts of 2,3,5,6-tetramethylpyrazine. The fermented blank bean beef powder essence provided by the invention is sandy beige powdery essence; fermented blank bean beef is pure in flavor, tastes delicious, is long in aftertaste, pure in taste and long in fragrance, does not taste bitter, and is true and natural in fragrance; the bitterness generated by drying original fermented blank bean beef powder is eliminated, and the defect that the taste is not natural and mellow enough due to adoption of fermented blank bean essence is overcome.
Owner:LUOHE LEJIA FOOD TECH CO LTD

Method for quantitative analysis of main pyrazine flavor substances in cigarette mainstream smoke

ActiveCN105842374AGood effectSolve the impact of factors such as serious interference analysisComponent separationResponse sensitivityTetramethyl pyrazine
The invention discloses a method for quantitative analysis of main pyrazine flavor substances in cigarette mainstream smoke and relates to a method for gas chromatography-tandem mass spectrometer-based determination of eight main pyrazine flavor substances such as 2-methylpyrazine, 2, 5-dimethylpyrazine, 2, 6-dimethylpyrazine, 2-methoxypyrazine, 2, 3, 5-trimethylpyrazine, 2-ethyl-3-methylpyrazine, 2, 3, 5, 6-tetramethylpyrazine and 2-acetylpyrazine in cigarette mainstream smoke. The method comprises internal standard solution, standard work solution and sample solution preparation, gas chromatography-tandem mass spectrometry analysis and determination result calculation. The improved detection method can be operated simply, has response sensitivity and quantitative analysis accuracy, effectively reduces complex sample matrix-caused interference and is suitable for quantitative analysis of a trace quantity of a target object in a complex flue gas matrix.
Owner:CHINA TOBACCO JIANGSU INDAL

Ligustrazine salt

The invention relates to a ligustrazine salt, in particular to ligustrazine mesylate and a pharmaceutical composition and use of the same. The ligustrazine mesylate of the invention has better stability than ligustrazine phosphate and ligustrazine hydrochloride.
Owner:沈阳华泰药物研究有限公司

Method for preparing tetramethyl pyrazine

The invention provides a process for chemically synthesizing tetramethylpyrazine by using amino butanone as raw material and letting in steam at the presence of alkalinity, wherein the obtained tetramethylpyrazine is in the form of trihydrate. The synthesis process can be applied to the field of pharmacy. The invention also provides the process for preparing phosphoric ligustrazine and phosphoric ligustrazine by using tetramethylpyrazine.
Owner:LI MIN PHARM FAB OF LIVZON PHARM GRP
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