10 results about "Nonanoic acid" patented technology

The application discloses a high-yield beta-lyase Pichia kluyveri strain breeding and application in beer fermentation, belonging to the field of bioengineering technology. Pichia kluyveri The Pichia kluyveri (Pichia kluyveri) B21 is preserved in the China General Microbiological Culture Collection Center, and the preservation number is CGMCC No. 34028. The strain can produce high-yield beta-lyase, the enzyme catalyzes the production of volatile mercaptans, and can impart beer fruity aroma. The Pichia kluyveri B21 produces high content of ethyl acetate, isoamyl acetate, isobutyl acetate, ethyl nonanoate, ethyl decanoate, phenethyl acetate, linalool and nerol in hop simulation culture medium, and these volatile substances can increase beer fruity aroma, floral aroma and rich beer flavor. The Pichia kluyveri B21 is expected to be added to the production of other food and beverage to enrich flavor substance components.

This invention discloses a method for preparing capsaicin-like substances by temperature-responsive eutectic solvent extraction, comprising the following steps: drying Yunnan chili peppers (after removing stems and seeds), pulverizing, sieving, and collecting the chili powder; mixing lidocaine (HBA) with six alkane-chain carboxylic acids (valerate, hexanoic acid, heptanoic acid, octanoic acid, nonanoic acid, and lauric acid) at a 1:1 molar ratio to form a homogeneous and transparent liquid, TRDES; weighing the chili powder, adding it to the TRDES aqueous solution, and extracting by shaking; after extraction, centrifuging, and diluting the supernatant to obtain capsaicin-like substances. This invention uses temperature-responsive eutectic solvent extraction to prepare capsaicin-like substances, which is simple, highly efficient, and allows for the recycling of extraction reagents, effectively saving resources. It has significant practical and industrial value for promoting the large-scale production of capsaicin-like substances and enhancing their high-value applications.

The application discloses a compound nonanoic acid 4-methyl-5-thiazole ethyl mercaptide, and a specific chemical structural formula is shown in the following formula: the aromatic compound is mainly applied to food essence.

The present application relates to the field of cosmetics, especially to an anti-aging essence and a preparation device, which is composed of A phase, B phase, C phase and D phase, and the components of each phase are as follows according to weight percentage: A phase: deionized water 16.15%, rose hydrolat 18.00%, propylene glycol 5.00%, glycerol 4.00%, xanthan gum 0.15%, carbomer 940 0.10%, panthenol (vitamin B5) 2.00%, boswelia (30% aqueous solution) 10.00%, ikedoin 2.00%, nicotinamide 2.00%, sodium hyaluronate compound 0.50%; B phase: polyglyceryl-6 distearate 1.20%, squalane 3.00%, isononyl isononanoate 2.00%, octyldodecanol 5.00%, rosehip oil 0.50%, argan oil 0.50%, ceramide compound powder 0.50%, cholesterol 0.30%, free fatty acid (C18-C22) 0.20%, Transcutol P 4.00%, oleanolic acid (ligustrum lucidum extract) 0.50%, plant extract compound liquid 5.00%, ergothioneine 0.30%. The advantages are that the active ingredient utilization rate is improved, the efficacy is comprehensive and the synergistic effect is strong, and the preparation device can make the mixing of each component more uniform, greatly improving the mixing efficiency.

The present invention relates to compositions comprising n-nonanoic acid esters of xylitol and / or sorbitol, to methods for their production, to formulations comprising them and to their use.

This invention relates to a composition comprising an aqueous phase gelled with a mixture of at least 1.5% by weight of a crosslinked acrylic homopolymer and a 2-acrylamido-2-methylpropanesulfonic acid homopolymer; an aliphatic phase comprising a volatile hydrocarbon oil, a non-volatile hydrocarbon oil selected from fatty amides, and a non-volatile hydrocarbon oil selected from isononanoates, synthetic ethers containing 10 to 40 carbon atoms, and / or carbonates; a surfactant selected from glycerides; a filler selected from amino acid powders and solid cellulose beads; and at least 5% by weight of ascorbic acid and / or its derivatives relative to the total weight of the composition.

The present invention addresses the problem of providing a technology for enhancing taste thickness of a packaged beverage.　The problem is solved by adding ethyl nonanoate at a concentration of 5-5,000 ppb to a packaged beverage. The beverage may have an alcohol content of 0-9 v / v%. The beverage may or may not contain a sweetener component. The beverage may have a fruit juice content of 13 w / v% or less. The beverage may or may not contain carbon dioxide.

This invention discloses a Pt-S-1 molecular sieve catalyst, its preparation method, and its application in the oxidation of isononanol to prepare isononanoic acid and / or isonononate. The catalyst uses an all-silica S-1 molecular sieve as a support, with Pt as the active component. The support contains both micropores and mesopores, with Pt uniformly dispersed within them. The Pt content in the catalyst is 0.004 wt% to 0.50 wt%, obtained through a secondary crystallization process. The catalyst offers advantages such as high precious metal utilization efficiency, mild reaction conditions, no need for alkali or additives, simple post-treatment, and convenient recycling.

The present invention is a composition for caring for and / or making up keratin materials, in particular the skin, in the form of a water-in-oil emulsion comprising, notably in a physiologically acceptable medium: a) at least one continuous oily phase comprising (i) a mixture of fatty acid ester of alcohol comprising Dipentaerythrityl Pentaisononanoate, Isononyl Isonanoate and Isocetyl Stearoyl Stearate; and (ii) at least one non-cyclic silicone oil; and b) at least one aqueous phase dispersed in said oily phase; and c) at least hydrophobic silica aerogel particles; and d) at least one silicone emulsifying surfactant with an HLB ≤ 8.0; and e) at least one pulverulent dyestuff said composition not containing any cyclic volatile silicone oil or any ethylhexyl methoxycinnamate.

This invention discloses a method for determining volatile fatty acids in wine using an internal standard method, comprising: preparing a standard stock solution: accurately weighing acetic acid, isobutyric acid, isovaleric acid, n-valeric acid, n-hexanoic acid, n-octanoic acid, n-nonanoic acid, and n-decanoic acid to prepare a mixed standard stock solution; taking a sample, adding sodium chloride, adding the internal standard, and using a headspace GC-MS detection method; the eight volatile fatty acids are detected in the range of 0.222–446.4 mg·L⁻¹. ‑1 A good linear relationship was observed within the concentration range, with linear correlation coefficients between 0.9990 and 0.9994. The limits of detection were between 0.02905 and 0.8006 mg·L⁻¹. ‑1 The recovery rate was between 88.7% and 110.9%, with a relative standard deviation of less than 8%. This method has high accuracy and good stability, and can accurately detect volatile fatty acids in wine, providing a reference for the quality control of volatile fatty acids in wine.