327 results about "Paraben" patented technology

Novel antimicrobial products and methods of making and using the same are shown, whereby the products can be used in the same or greater percentages as conventional microbial growth inhibitors without imparting an off-flavor, taste, color or odor to the products in which they are used. The antimicrobial products are formed by reacting azodicarbonamide or an ammonia gas with a compound selected from the group consisting of benzoic acid, sodium benzoate, calcium benzoate, potassium benzoate, acetic acid, sodium diacetate, paraben, niacin, calcium acetate, calcium diacetate, citric acid, lactic acid, fumaric acid, sorbic acid, sodium sorbate, calcium sorbate, potassium sorbate, propionic acid, sodium propionate, calcium propionate, potassium propionate and mixtures thereof. In one embodiment, the product is prepared by placing a layer of azodicarbonamide on a substrate and covering the layer with a gas permeable separator. The antimicrobial compound is then added on top of the separator, and the combination is heated to form the final product. In another embodiment, the product is prepared by exposing the antimicrobial compound to an ammonia gas. The ammonia gas reacts with free acids in the antimicrobial compound to convert the free acids into ammonium salts, thereby eliminating off-flavor and off-odor of the resulting antimicrobial product. The antimicrobial products prepared according to the present invention are suitable for use in foodstuffs, sanitation products, cosmetics, pharmaceuticals, and so forth.

A personal care composition comprising leghemoglobin and at least one preservative selected from the group consisting of alcohols, glycols, parabens, hydantoins, quaternary nitrogen-containing compounds, isothiazolinones, aldehyde-releasing agents, and halogenated compounds. Preferably, the leghemoglobin is a nitrogen fixation root nodule extract providing a leghemoglobin concentration in the composition of between 0.0001% and about 10% based upon the total weight of the composition. Also disclosed is a method for preparing the personal care composition.

The present invention relates to stabilized 99mTc radiopharmaceutical compositions, which include both a radioprotectant and one or more antimicrobial preservative(s), and hence have an extended lifetime of use. The radioprotectant is ascorbic acid, para-aminobenzoic acid, gentisic acid or a salt thereof with a biocompatible cation, and the antimicrobial preservative is one or more compound from the paraben series of preservatives. The invention is particularly useful for cationic, lipophilic 99mTc heart imaging agents such as Myoview™.

The invention relates to a concrete foaming agent and a preparation method thereof. The concrete foaming agent comprises raw materials in mix proportion by mass: 10.0-18.0 of colophony, 1.0-2.0 of sodium hydroxide, 0.5-1.5 of sodium dodecyl benzene sulfonate, 5.0-15.0 of bone glue, 0.5-1.5 of ethoxyl or hydroxypropyl methylcellulose, 2.0-4.0 of tea saponin, 0.1-0.5 silver nitrate or paraben and 58.0-72.0 of water. During preparation, the preparation method comprises the steps of: soaking the bone glue in water for 24-48h; adding the colophony and the sodium hydroxide while stirring; hydrolyzing for 3-5h under the temperature of 80-100 DEG C; standing for 10min; filtering, wherein the ethoxyl or hydroxypropyl methylcellulose, the tea saponin, the silver nitrate or the paraben are added in a filtrate under the temperature of 80-100 DEG C; and completing after dissolving and cooling down. The concrete foaming agent and the preparation method thereof have the advantages of simple process,low cost, good placeability with various foamed concrete-based materials, no defoaming and unlimited application range.

An antimicrobial and chemical deactivating composition for use in a liquid medium or for incorporation into a coating, structural plastic materials, thin microporous membranes, textiles and sponges. The composition includes macrosize or submicron particles of silver, platinum with silver and their salts with parabens, oxide, salicylate, acetate, citrate, benzoate and phosphate along with copper and zinc salts of the same.

The invention provides a UPLC-MS / MS detecting method for detecting concentration of parabens preservatives in human urine. The method includes the steps of firstly, processing samples, to be more specific, placing a to-be-detected urine sample into a test tube or a centrifugal tube, adding water with the volume being 1 / 10 times of the volume of the urine sample, adding beta-glucuronidase, shaking up and sealing, heating in water bath of 37 DEG C until complete reaction is achieved, taking a certain amount of reaction liquid, adding precipitator (methanol / acetonitrile=1:1) with the quantity being 3 times of the quantity of the reaction liquid to precipitate protein, well mixing in a vortex manner, centrifuging at 15000rpm for 10 minutes, and taking 5-10 microliters of supernate for sample analysis; secondly, injecting the sample, and performing the UPLC-MS / MS detection according to certain conditions; thirdly, calculating the concentration of the parabens preservatives in the human urine according to the peak area of the sample and the regression equations of standard curves. The UPLC-MS / MS detecting method has the advantages that the method is simple and fast, high in sensitivity, high in interference resistance and suitable for the simultaneous qualitative and quantitative detection of the preservatives in the urine, and food with excessive preservatives can be detected in the urine through metabolism.

The present invention discloses a method of producing male or female sterile plants comprising the steps of: transforming plant material with a polynucleotide encoding at least one enzyme that reacts with a non-toxic plant material to produce a plant-toxic material , regenerating such transformed material into plants, wherein the period of male or female gamete formation and / or maturation is not exceeded, the non-phytotoxic substance is applied to said plants, whereby the non-phytotoxic substance provides the phytotoxic The production of a substance that selectively prevents the formation of said gametes or renders them nonfunctional, wherein the enzyme is preferentially expressed in the male or female reproductive structures, is characterized in that: (i) non-toxic phytotoxicity From: Ester derivatives of non-phosphonate herbicides of direct phytotoxicity to non-green tissues, D-alpha amino acids, peptide derivatives of non-protein D-alpha amino acids, S-para to aryloxyphenoxypropionic acids enantiomer and S-enantiomer of ester derivatives of aryloxyphenoxypropionic acid, and (ii) enzyme selected from: carboxylesterase, D-amino acid oxidase, D-amino acid dehydrogenase, D-amino acid Racemase, 2-arylpropionyl-CoA epimerase, alpha-formyl-CoA racemase, thioesterase and acyl-CoA synthetase.