12 results about "Ethyl palmitate" patented technology

The invention belongs to the technical field of microbial fermentation, and particularly relates to Wickerhamomyces anomalus and application thereof in preparation of ethyl palmitate, propyl linoleate or ethyl oleate. According to the present invention, the Wickerhamomyces anomalus is provided, the Wickerhamomyces anomalus is the Wickerhamomyces anomalus Lz5, the classification name of the Wickerhamomyces anomalus is Wickerhamomyces anomalus, the Wickerhamomyces anomalus is preserved in the China General Microbiological Culture Collection Center on June 19, 2025, and the preservation number of the Wickerhamomyces anomalus is CGMCC No. 34954; the address of the preservation unit is Institute of Microbiology, Chinese Academy of Sciences, No.3, No.1 Yard, Beichen West Road, Chaoyang District, Beijing; when the strain is used for fermenting sugarcane juice, ethyl palmitate, propyl linoleate and ethyl oleate can be prepared. In the culture medium after fermentation is finished, the content of ethyl palmitate can reach 13.68 mg / L. After subsequent extraction, the method can be used for industrial production.

A flavor composition is provided. The flavor composition includes decanoic acid; ethyl palmitate; and 10-undecenoic acid.

This invention discloses an aroma fitter for fenugreek tincture based on key aroma components and synergistic aroma characteristics, and its applications. Based on analytical studies of the aroma components and aroma characteristics of high-quality fenugreek tincture, the aroma fitter identifies key aroma characteristics such as caramel sweetness, freshness, fruitiness, nutty aroma, roasting aroma, and sourness, and determines the contributing characteristic compounds and their synergistic proportions within each aroma characteristic. The composition contains key components such as acetic acid, trans-2-pentenal, propyl butyrate, phenethyl acetate, 2-hexanone, ethyl palmitate, benzaldehyde, 2,5-dimethylpyrazine, and 3-hydroxy-4,5-dimethyl-2(5H)furanone, which are precisely formulated to achieve a high degree of consistency with natural fenugreek tincture in aroma structure and olfactory characteristics. This invention not only provides a realistic and layered aroma fitter formulation but can also be applied to the food and daily chemical industries, providing stable and harmonious fenugreek characteristic aromas, thus possessing significant practical application value.

The invention discloses a method for preparing aspergillus tubingensis mouldy bran by utilizing agilawood and application of the aspergillus tubingensis mouldy bran in Baijiu brewing, and belongs to the technical field of Baijiu production. Aspergillus tubingensis and bran are jointly fermented to prepare the distiller's yeast, compared with aspergillus mouldy bran without agilawood, the total content of flavor substances is increased by 116.80%, the content of ester compounds is 12244.82 micrograms / g, the content of 4-vinyl guaiacol reaches 4805.29 + / -970.18 mg / L, the content of ethyl palmitate reaches 2874.95 + / -207.95 mg / L, the flavor of the distiller's yeast of the Baijiu is increased, and the industrial application value is increased.

The application belongs to the technical field of microbial fermentation, and particularly relates to an abnormal williamsonia yeast and application of the abnormal williamsonia yeast in preparation of ethyl palmitate, propyl linoleate or ethyl oleate. Wickerhamomyces anomalus The abnormal williamsonia yeast is abnormal williamsonia yeast Lz5, and is classified and named as abnormal williamsonia yeast Wickerhamomyces anomalus , which is preserved in the China General Microbiological Culture Collection Center on June 19, 2025, has a preservation number of CGMCC No.34954, and an address of the preservation unit is No.3, Institute of Microbiology, Chinese Academy of Sciences, 1, Beichen West Road, Chaoyang District, Beijing. Ethyl palmitate, propyl linoleate and ethyl oleate can be prepared by fermenting sugarcane juice with the abnormal williamsonia yeast. The content of ethyl palmitate in the culture medium after fermentation can reach 13.68 mg / L. After subsequent extraction, the abnormal williamsonia yeast can be used for industrial production.

The invention belongs to the technical field of microorganisms, and relates to a tobacco aroma enhancement bacillus strain, a culture method and application in tobacco leaf fermentation, the preservation number of the bacillus strain S-120 is CGMCC No.35009, and the bacillus strain S-120 is preserved in China General Microbiological Culture Collection Center on June 26, 2025; the bacillus strain S-120 disclosed by the invention can be used as a fermentation strain to act on tobacco leaves to play a role; according to the bacillus disclosed by the invention, the contents of dihydroactinidiolide, 4-hydroxy-beta-dihydrodamascone, 4, 7, 9-megastigmatriene-3-ketone, farnesyl acetone, 9-hydroxy-4, 7-megastigmatriene-3-ketone, farnesyl acetone, geranyl acetone and ethyl palmitate in tobacco leaves can be increased to a certain extent, and aroma components such as sclareol, n-nonanal and the like are added after fermentation; the strain can be used as a fermentation strain to play a role in tobacco leaf fermentation. The bacillus disclosed by the invention can increase flavor substances of tobacco leaves, the flavor quality and the flavor amount of the tobacco leaves are improved, smoke is fine and elegant and has a fresh and sweet feeling, and the aftertaste is improved.

This invention discloses a high-efficiency spray solder paste and its preparation method, comprising the following raw materials in weight percentages: 75%–85% lead-free solder powder; the particle size of the lead-free solder powder is 15–25 μm; and 15%–25% flux; the flux is composed of the following raw materials in parts by weight: 15–25 parts polymerized rosin; 5–15 parts hydrogenated rosin; 5–10 parts rosin glyceryl ester; 3–5 parts ethyl palmitate; and 3–5 parts calcium chloride, etc. By using lead-free solder powder with a particle size of 15–25 μm, the cost is low. Combined with the flux formulated in this invention, this product can be sprayed using various spraying devices, replacing the traditional stencil printing method, effectively improving the efficiency of solder paste application. Furthermore, this solder paste exhibits excellent wettability during spraying, resulting in smooth spraying and stable solder joint quality, which is beneficial for improving the reliability and production efficiency of electronic products.

The invention belongs to the technical field of microorganisms, and relates to bacillus for redried tobacco, a culture method and application in tobacco fermentation, the bacillus strain S-209 has the preservation number of CGMCC No.35010, and is preserved in China General Microbiological Culture Collection Center on June 26, 2025; the bacillus strain S-209 disclosed by the invention can be used as a fermentation strain to act on redried tobacco leaves to play a role; according to the bacillus disclosed by the invention, the content of dihydroactinidiolide, 9-hydroxy-4, 7-megabean diene-3-ketone, 6-ethyl-5, 6-dihydro-2H-pyradine-2-ketone, ethyl palmitate, 4-cyclopentene-1, 2, 4-triazole-3-ketone, 4-cyclopentene-1, 2, 3-triazole-3-ketone, 4-cyclopentene-1, 2, 3-triazole-3-ketone, 4-cyclopentene-1, 2, 3-triazole-3-ketone, the contents of 1, 3-diketone, 4-hydroxy-beta-dihydrodamascone, farnesyl acetone and geranyl acetone are increased, and aroma components such as sclareol and geranyl aromatic alcohol are added, so that the aroma components in smoke are increased, and the smoking quality is improved.

The invention discloses a preparation method of a composite epoxy resin material, and relates to the technical field of epoxy resin material preparation, the preparation method comprises the following steps: a, mixing a heat storage material and an adsorption material, and stirring in a stirring device I; b, sequentially putting an antioxidant, a curing agent, a flexibilizer, a thermal insulation material, an accelerant, reinforced fibers, composite color-changing microcapsules and epoxy resin into a stirring device II, and stirring; c, a mixture obtained after stirring in the first stirring device in the step a is put into the second stirring device in the step b to be stirred; and d, curing the composite epoxy resin material obtained in the stirring device II in the step c. Heat can be stored by adding the ethyl palmitate heat storage material into the epoxy resin material, furniture made of the composite epoxy resin material can store heat generated by an air conditioner when the electric charge price is low at night, then heat can be released to the outside for a longer time in the daytime, and then the expenditure of the electric charge is reduced.

This invention belongs to the field of food microbiology technology, specifically relating to the application of yeast strain QGXH1 in the preparation of ethyl acetate, iris glycol, and ethyl linolenate. The yeast strain QGXH1 was deposited on January 29, 2024, at the China General Microbiological Culture Collection Center (CGMCC), accession number CGMCC No. 29805; deposit address: Institute of Microbiology, Chinese Academy of Sciences, No. 3, Courtyard 1, Beichen West Road, Chaoyang District, Beijing; classification and nomenclature: *Saccharomyces cerevisiae*. Saccharomyces cerevisiae The plum vinegar prepared by fermentation with yeast strain QGXH1 showed a significant increase in the content of ethyl acetate, ethyl palmitate, ethyl decanoate, linolenic acid, and ethyl hexadecanoate. In addition, when yeast strain QGXH1 was co-fermented with green tea to prepare plum vinegar, the nutritional components increased with iris glycol and ethyl linolenic acid, which greatly enriched the aroma components and nutrients of the plum vinegar.

The invention discloses a method for detecting the content of active ingredients in magnolia wufengensis volatile oil, and belongs to the field of quality control of traditional Chinese medicines. A gas chromatograph is adopted to be equipped with a hydrogen flame ionization detector (GC-FID), a chromatographic column is Agilent VF-17 ms, carrier gas is helium, and the flow velocity is 0.8 mL / min; temperature programming; and carrying out quantitative analysis by adopting an external standard method. The GC method for simultaneously determining the content of the five active ingredients (beta-elemene, ethyl palmitate, ethyl linoleate, ethyl linolenate and squalene) in the magnolia wufengensis volatile oil is established for the first time, the method is economical, accurate and good in repeatability, and scientific basis and technical support are provided for quality control and standardized evaluation of the magnolia wufengensis volatile oil.

The application provides a non-Saccharomyces cerevisiae strain and application thereof, the strain SIVE8901 has been preserved in China Center for Type Culture Collection (CCTCC) on May 31, 2023; address: Wuhan, China, Wuhan University, the preservation number is CCTCC NO:M 2023882, and the Latin name is Starmerella bacillaris The strain SIVE8901 is Candida zeylane, the strain SIVE8901 has good flavone tolerance, after non-Saccharomyces cerevisiae and Saccharomyces cerevisiae mixed fermentation, characteristic aroma components such as ethyl decanoate and ethyl palmitate are produced, coconut aroma and butter aroma are given to fruit wine, and it is of great significance to improve the flavor of fruit wine and improve the quality of fruit wine.