291 results about "Dehydroacetic acid" patented technology

Skin care compositions containing dehydroacetic acid, its isomers, salts, and derivatives thereof; at least two skin care actives selected from sugar amines, vitamin B3 compounds, phytosterols, salicylic acid compounds, hexamidines, dialkanoyl hydroxyproline compounds, flavonoids, n-acyl amino acid compounds, and their derivatives, and combinations thereof; and a dermatologically acceptable carrier for the dehydroacetic acid and the skin care actives. The invention further relates to methods for regulating the condition of mammalian keratinous tissue wherein the methods each comprise the step of topically applying to the keratinous tissue of a mammal needing such treatment, a safe and effective amount of the skin care composition of the invention.

A microbicidal composition of 1,2-benzisothiazolin-3-one; and at least one of benzalkonium chloride, benzethonium chloride, benzyl alcohol, caprylyl glycol, chlorphenesin, diazolidinyl urea, ethylparaben, imidazolidinyl urea, methylparaben, phenoxyethanol, linoleamidopropyl PG-dimonium chloride phosphate, cocamidopropyl PG-dimonium chloride phosphate, propylparaben, cis-1-(3-chloroallyl)-3,5,7-triaza-1-azoniaadamantane chloride, dehydroacetic acid or its salts, benzoic acid or its salts, and sodium hydroxymethylglycinate.

The invention discloses a hand cleaner composition. The hand cleaner composition comprises saccharide prebiotics, a preservative, a surfactant and water, wherein the ratio of the mass of the saccharide prebiotics to the mass of the preservative to the mass of the surfactant is (1-15):(0.1-2):(1-20); the saccharide prebiotics is at least one of polyfructosan, galacto-oligosaccharide, lactulose and raffinose; the preservative is at least one of nipagin ester, sodium nipagin acid ester, benzoic acid, sodium benzoate, sorbic acid, potassium sorbate, dehydroacetic acid, sodium dehydroacetate, benzyl alcohol and phenoxyethanol; and the surfactant is one of a nonionic surfactant, an anionic surfactant and an ampholytic surfactant. The hand cleaner composition can be used for rubbing hands without water, and has a good cleaning effect; and in addition, the saccharide prebiotics can effectively replace absorption fungus microorganisms on the surface of skin, so that the probability that bacteria directly attack the skin is eliminated.

Antimicrobial compositions which are active against bacteria, yeast and mold spores are described. The compositions may be blends of (I) an acrylate / methacrylate copolymer having a hydrophobic network structure and (II) a preservative component comprising comprising (A) an isothiazolinone or (B)phenoxyethanol and either (i) a 1,2-diol or (ii) benzoic acid and dehydroacetic acid.

Stable skin care compositions comprising dehydroacetic acid and a dermatologically acceptable carrier. The dermatologically acceptable carrier comprises at least one oil, said oil having a solubility in water of about 5% or less and a solubility parameter of from about 7 to about 15, and the dehydroacetic acid is distributed primarily into said oil. The compositions have a pH of about 4.5 and below.

The invention relates to a total chestnut peptide nourishment and a preparation method of the total chestnut peptide nourishment. Polypeptide, short peptide, oligopeptide and the like can be generated from the nutritional ingredients inside the chestnut to be directly assimilated by a human body. The total chestnut peptide nourishment provided by the invention comprises 1-60wt% of peptide, linolenic acid, linoleic acid, DHA (Dehydroacetic Acid), vitamin, glucose and the like. The preparation method of the total chestnut peptide nourishment comprises the following steps of: soaking chestnut kernel in a VC (Vitamin C) solution or a citric acid solution for color protection, adding water into the soaked chestnut kernel for grinding and pulping to obtain a chestnut pulp, carrying out chestnut starch alpha treatment on the mixed pulp at the temperature of 130-135 DEG C and under the pressure of 6-8Pa, grinding to 120-300 meshes, saccharifying the chestnut starch inside the pulp after the sterilization, regulating the pH value to 3.5-5.5 after the enzyme deactivation, adding acid proteinase and lipase into the pH regulated solution, standing still at constant temperature, carrying out biochemical degradation condensation to obtain the raw total chestnut peptide solution, and further preparing a total chestnut peptide powder, a total chestnut peptide capsule, a total chestnut peptide tablet, a total chestnut peptide oral liquid or a total chestnut peptide functional sports beverage.

A method for detecting food additives in moon cakes, comprising the following steps: (1) preparing a mixed standard solution: mixing and preparing dehydroacetic acid, benzoic acid, sorbic acid, and four kinds of p-hydroxybenzoic acid lipid standard products in pure methanol; Acesulfame K, sodium saccharin, and 8 food coloring standards were mixed and prepared in pure water; then the above solutions were mixed in proportion to obtain a mixed standard stock solution; (2) sample extraction; (3) sample purification; (4) on Machine detection: the liquid to be tested and the mixed standard solution are placed in a liquid chromatograph equipped with an ultraviolet detector for detection, and the external standard method is used for quantification. Through gradient elution and wavelength switching, the content of food additives is measured simultaneously on the machine. The invention has the same pretreatment steps, low cost, high speed, reliable results and good reproducibility, and can simultaneously detect 17 kinds of food additives at one time.

The invention discloses a method for simultaneously determining contents of various preservatives in soy by a capillary gas chromatography internal standard method, which comprises the following steps of: (1) weighing a soy sample; (2) adding an internal standard solution in the sample, and then sequentially being subjected to acidification, ether extraction, water removal water by purification and concentration treatment to obtain a sample solution; (3) taking the sample solution from the step (2) to be subjected to gas chromatography to obtain chromatographic data; and (4) comparing the chromatographic data obtained from the step (3) with the preset standard data of preservatives to obtain the contents of various preservatives in the soy. The method can simultaneously determine the contents of preservatives such as benzoic acid, sorbic acid, dehydroacetic acid and paraben esters and the like in the soy, is simple and convenient to operate, and is easy to implement, the impact of operation error, instrument conditions and other factors on determination results can be effectively reduced, and the results are accurate and reliable.

The invention discloses antistatic environment-friendly glue. The antistatic environment-friendly glue comprises, by weight, 60-160 parts of polyester, 30-40 parts of butanediol acrylate, 40-60 parts of trimethylolpropane, 10-30 parts of butanediol, 20-40 parts of metoxyphenol, 8-12 parts of acetone, 9-12 parts of acrylamide, 10-28 parts of styrene, 6-24 parts of ethyl alcohol, 2-6 parts of xylene, 20-30 parts of poly isobutyl ester, 10-30 parts of aluminum hydroxide, 24-48 parts of phosphotriester, 12-18 parts of antimonous oxide, 100-160 parts of methacrylic acid-2-hydroxy ethyl, 80-100 parts of methyl acrylate, 20-60 parts of methacrylic acid glycerol trilaurate, 12-16 parts of styrene, 20-40 parts of methacrylic acid, 8-16 parts of dehydroacetic acid and 20-40 parts of butanol. The antistatic environment-friendly glue is easy to manufacture, non-toxic production materials are selected, the glue is good in use effect and environmentally friendly, a tough coating can be formed, and lasting waterproofness and antistatic performance are achieved.

The invention discloses a degradable plastic material. The degradable plastic material comprises the following raw materials in part by weight: 5-50 parts of hydroxybutyrate and valeric acid copolyester PHBV4, 50-55 parts of peanut protein prowder, 15-18 parts of nanometer cellulose whiskers, 12-15 parts of coconut fibers, 3-5 parts of amylase, 1.5-2.2 parts of silane coupling agents, 2-3 parts of potassium sorbate, 2-3 parts of dehydroacetic acids, 1.4-1.6 parts of dioctyl phthalate, 1.2-1.6 parts of zinc stearate, 10-12 parts of hard clay, 5-9 parts of kaolin, 7-11 parts of sepiolite and 1-1.4 parts of 2, 6- di-tert-butyl-4-methylphenol BHT. The degradable plastic material can be completely decomposed into micromolecule substances under effects of microorganisms; the tensile strength, the breakage elongation and the light transmission of the degradable plastic material are close to those of the existing polypropylene; and the degradable plastic material can replace the polypropylene in some fields.

The invention discloses a plant essence-containing sunscreen foundation cream. The plant essence-containing sunscreen foundation cream is mainly composed of ethylhexyl methoxycinnamate, zinc oxide, titanium dioxide, ethylhexyl salicylate, cyclopentapolydimethylsiloxane, glycerin, dipropylene glycol, quaternary ammonium salt-18 and hectorite, magnesium sulfate, iron oxide red, iron oxide yellow, iron oxide black, PEG-10 and polydimethylsiloxane, a Curacao aloe extract, a jujube extract, a coix seed extract, dehydroacetic acid, benzyl alcohol and water. The plant essence-containing sunscreen foundation cream is developed through utilizing the effective components of plant extracts against the disadvantages of present foundation creams. The effective plant components deeply nourish and moisten skins, and realize no defects or fine lines of skins, moisture and permeable makeup, even and glossy skin sense, age sign relieving and youthful radiance because of the excellent covering power. The plant essence-containing sunscreen foundation cream can effectively protect skins and resist the ultraviolet and environment harms, and prevents the light ageing of the skins.

A plastic material having an antimicrobial characteristic and the method for making the plastic material is provided. The method includes blending and / or extruding a polymeric composition in a process which includes a temperature of at least about 170° C. The method also includes adding an antimicrobial component to the polymeric composition prior to or during the blending and / or extruding. The antimicrobial component includes a salt of a dehydroacetic acid (DHA) in an amount sufficient to provide the resulting plastic material with an effective antimicrobial characteristic. The antimicrobial component including a salt of DHA is stable at temperatures required for processing polymeric compositions.