Provided is a method for preparing oxyresveratrol, comprising the steps of: (S1) providing a raw material containing mulberroside A; and (S2) using β-glucanase to perform enzymatic hydrolysis treatment on the raw material containing mulberroside A, and converting mulberroside A into oxyresveratrol so as to obtain an enzymatic hydrolysate. The method can remarkably increase the yield of oxyresveratrol, the enzymatic hydrolysis rate of mulberroside A can be as high as about 90%, and the yield of oxyresveratrol is greatly increased. The method has mild reaction conditions, simple post-treatment, and no need for special reagents, and is suitable for industrial production.
C12P 7/22 - Preparation of oxygen-containing organic compounds containing a hydroxy group aromatic
C07C 37/82 - SeparationPurificationStabilisationUse of additives by physical treatment by solid-liquid treatmentSeparationPurificationStabilisationUse of additives by physical treatment by chemisorption
C07C 39/215 - Compounds having at least one hydroxy or O-metal group bound to a carbon atom of a six-membered aromatic ring polycyclic, containing only six-membered aromatic rings as cyclic part, with unsaturation outside the rings with at least one hydroxy group on a non-condensed ring containing the structure, e.g. diethylstilbestrol
Provided in the present invention are a Swertiae mileensis herba extract, and a preparation method therefor and the use thereof. Specifically, provided in the present invention is the use of the Swertiae mileensis herba extract in the preparation of a composition for resisting skin problem-related flora. Further provided in the present invention are a Swertiae mileensis herba extract and a preparation method therefor. The Swertiae mileensis herba extract has high safety and a good antibacterial effect.
01 - Chemical and biological materials for industrial, scientific and agricultural use
Goods & Services
Tea extracts for use in the manufacture of cosmetics;
antioxidants for use in the manufacture of cosmetics;
vitamins for use in the manufacture of cosmetics; plant
extracts for use in the manufacture of pharmaceuticals;
plant extracts for use in the manufacture of food; plant
extracts for use in the manufacture of cosmetics; chemical
preparations for use in the manufacture of cosmetics;
proteins for use in the manufacture of cosmetics; pigment
dispersant for use in the manufacture of cosmetics;
tensio-active agents.
4.
PREPARATION METHOD FOR PYRACANTHA FRUIT EXTRACT, AND USE
A preparation method for a pyracantha fruit extract, which comprises the following steps: (1) enzymolysis: acquire a pyracantha fruit, add a compound enzyme and perform enzymolysis, and obtain an enzymolysis mixture; (2) alcohol extraction: add ethanol to the enzymolysis mixture and perform extraction, filtration, and concentration, and obtain an ethanol extract; (3) macroporous adsorption resin purification: load the ethanol extract on the macroporous adsorption resin and perform purification, and collect a desorption solution; and (4) drying: perform concentration and drying on the desorption solution, thereby obtaining the pyracantha fruit extract. Advantageous characteristics of the present invention are: a flavonoid within the pyracantha fruit can be effectively extracted and industrial production is easy to implement, and a pyracantha fruit extract having antioxidant, brightening, and whitening effects is obtained.
Disclosed in the present application is a method for preparing a Gentiana macrophylla Pall. extract, comprising the following steps: taking Gentiana macrophylla Pall., adding an extraction solvent for extraction, loading the obtained extract solution on a macroporous adsorption resin chromatography column for separation and purification, collecting the eluate, concentrating, and drying, to obtain the Gentiana macrophylla Pall. extract. The macroporous adsorption resin is formed by mixing two types of resins, HP20 and AB-8. The advantage of the present application is: gentiopicroside and loganic acid can be effectively extracted from the Gentiana macrophylla Pall., to obtain the Gentiana macrophylla Pall. extract having barrier repair, anti-inflammatory, soothing and nerve sedative effects.
Disclosed is a method for preparing a coffee silverskin extract, comprising the following steps: (1) taking coffee silverskin, adding an extraction solvent, carrying out ultrasonic extraction, then carrying out heating for extraction, and filtering same to obtain a crude extraction liquid; (2) concentrating the crude extraction liquid to obtain an extract; (3) loading the extract on macroporous adsorption resin, firstly eluting same with water, then eluting same with ethanol, and collecting an ethanol eluate; (4) concentrating the ethanol eluate and drying same to obtain the desired product. In the provided method for preparing a coffee silverskin extract provided, caffeine and chlorogenic acid can be effectively extracted. The obtained coffee silverskin extract has sun protection and after-sun repair effects in cosmetic use.
A61K 8/97 - Cosmetics or similar toiletry preparations characterised by the composition containing materials, or derivatives thereof, of undetermined constitution from algae, fungi, lichens or plantsCosmetics or similar toiletry preparations characterised by the composition containing materials, or derivatives thereof, of undetermined constitution from derivatives thereof
A61Q 17/04 - Topical preparations for affording protection against sunlight or other radiationTopical sun tanning preparations
