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CN-120661421-B - Oat refined oil extract and preparation method and application thereof

CN120661421BCN 120661421 BCN120661421 BCN 120661421BCN-120661421-B

Abstract

The invention provides an oat refined oil extract and a preparation method and application thereof, and relates to the technical field of cosmetics. The oat refined oil extract comprises, by weight, 88-92 parts of oat kernel oil and 8-12 parts of oat bran extract, (1) mixing oat bran with ethanol-n-hexane-limonene, performing microwave treatment to obtain oat bran slag, (2) performing supercritical carbon dioxide extraction on the oat bran slag, wherein the entrainer is ethanol-n-hexane-limonene, the extraction conditions are 35-45 ℃, 50-60MPa, and static extraction is performed for 50-80min, and (3) mixing the extraction solutions to obtain the oat bran extract. Squeezing oat kernel to obtain oat kernel oil A and oat residue, extracting the oat residue with supercritical carbon dioxide to obtain oat kernel oil B, and mixing the oat kernel oils. The oat bran extract and oat kernel oil of the invention have high yield, have remarkably improved moisturizing and anti-inflammatory effects, and can be applied to cosmetics.

Inventors

  • CHEN MO
  • TANG XUETAO

Assignees

  • 北京三友汇智生物技术有限公司

Dates

Publication Date
20260508
Application Date
20250701

Claims (8)

  1. 1. The refined oat oil extract is characterized by comprising, by weight, 88-92 parts of oat kernel oil and 8-12 parts of oat bran extract; The preparation method of the oat bran extract comprises the following steps: (1) Mixing oat bran with ethanol-n-hexane-limonene mixed solution, and performing microwave treatment under 200-400W power condition for 2-5min to obtain extract A and oat bran residue; (2) Extracting oat bran residue with supercritical carbon dioxide, wherein entrainer is ethanol-n-hexane-limonene mixed solution, the extraction temperature is 35-45deg.C, the extraction pressure is 50-60MPa, and the static extraction time is 50-80min to obtain extract B; (3) Mixing the extraction solution A and the extraction solution B, concentrating under reduced pressure, and separating the extract to obtain oat bran extract; In the mixed solution in the step (1) and the step (2), the volume ratio of the ethanol to the normal hexane to the limonene is 6-10:2-4:1-2; The preparation method of the oat kernel oil comprises the steps of squeezing oat kernel at 35-45 ℃ for 20-40min under 50-70MPa for 1-3 times to obtain oat kernel oil A and oat slag, extracting the oat slag by supercritical carbon dioxide under the extraction pressure of 25-30MPa and the extraction temperature of 26-30 ℃, wherein the entrainer is ethanol, the amount of the entrainer is 200-300mL/100g, dynamic extraction time is 10-20min to obtain oat kernel oil B, merging the oat kernel oil A and the oat kernel oil B, adding a proper amount of deionized water, centrifuging to separate an oil layer, adding activated carbon for decolorization, adding alkali liquor into the decolorized product, stirring, heating to 55 ℃, standing and cooling to room temperature, refrigerating and standing for 12h at 4 ℃, centrifuging, collecting the deacidified product, heating the deacidified product to 85 ℃, washing until neutral water, and separating the oat kernel oil.
  2. 2. The refined oat oil extract of claim 1, wherein the mass ratio of oat kernel oil to oat bran extract is 90:10.
  3. 3. The refined oat oil extract of claim 1, wherein the volume ratio of ethanol, n-hexane and limonene in the mixed solution of step (1) and step (2) is 8:3:2.
  4. 4. The refined oat oil extract of claim 1, wherein the microwave treatment of step (1) is provided that the microwave treatment is performed at a power of 300W for 3min and the solid-to-liquid ratio of the microwave treatment is 1:16-25g/mL.
  5. 5. The refined oat oil extract of claim 1, wherein the conditions of supercritical carbon dioxide extraction in step (2) are an extraction temperature of 40 ℃, an extraction pressure of 55MPa, and a static extraction time of 60min.
  6. 6. A process for preparing a refined oat oil extract as claimed in any one of claims 1 to 5, comprising the steps of: S1, preparing oat kernel oil, namely squeezing oat kernel at 35-45 ℃ for 20-40min under 50-70MPa for 1-3 times to obtain oat kernel oil A and oat slag, extracting the oat slag by supercritical carbon dioxide under the extraction pressure of 25-30MPa and the extraction temperature of 26-30 ℃ and the entrainer of ethanol, wherein the entrainer is 200-300mL/100g, dynamically extracting for 10-20min to obtain oat kernel oil B, combining the oat kernel oil A and the oat kernel oil B, adding a proper amount of deionized water, centrifugally separating an oil layer, adding activated carbon for decoloring, adding alkali liquor into a decolored product, stirring, heating to 55 ℃, standing and cooling to room temperature, refrigerating and standing for 12h at 4 ℃, centrifuging, collecting a deacidified product, heating the deacidified product to 85 ℃, washing until neutral water, and separating the oat kernel oil; s2, mixing the oat kernel oil and the oat bran extract to obtain the refined oat oil extract.
  7. 7. Use of the oat refined oil extract of any one of claims 1-5 or the oat refined oil extract prepared by the preparation method of claim 6 in the preparation of a moisturizing, anti-inflammatory cosmetic.
  8. 8. A moisturizing and anti-inflammatory cosmetic comprising the refined oat oil extract of any one of claims 1-5 or the refined oat oil extract prepared by the preparation method of claim 6.

Description

Oat refined oil extract and preparation method and application thereof Technical Field The invention belongs to the technical field of cosmetics, and particularly relates to an oat refined oil extract and a preparation method and application thereof. Background Oat belongs to Gramineae, oat group and Avena, oat oil and active ingredients are extracted from oat as raw materials, and added value of oat can be improved. The oat seeds are wrapped by two shells, and the surfaces of the seeds are covered by fine wool. The seed coat, i.e. the bran, contains proteins, lipids and cellulose. The other parts of the seed are endosperm and embryo, the endosperm accounts for the largest proportion in the oat seed, and the endosperm contains protein, starch, lipid and cellulose. The oat lipid contains more than 95% of total fatty acid, and further contains lauric acid, palmitoleic acid, arachidonic acid, eicosaunsaturated fatty acid, trace amount of lignanoic acid and nervonic acid. The oat oil not only contains high-quality fatty acid, but also contains various active ingredients such as polyphenol, sterol, tocopherol and the like, can remove free radicals, has the effects of deferring senility, preserving moisture and resisting inflammation, and has wide application in the industries of cosmetics, medicaments and foods. The Chinese patent CN101787059A discloses a method for extracting digalactosyl diacylglycerol from oat, which comprises the following steps of degreasing oat bran by supercritical carbon dioxide extraction, extracting the degreased oat bran by acetone, concentrating the leaching solution under reduced pressure, mixing with 1-3 times of silica gel by weight, adsorbing, adding blank silica gel into a separation column, adding mixed silica gel, eluting with chloroform-methanol mixed solution with the weight ratio of mixed silica gel being=2-4:1, eluting with chloroform-methanol mixed solution with the volume ratio of 70-90:30-10, and eluting with chloroform-methanol mixed solution with the volume ratio of 60-80:40-20, wherein the components in the eluent are refined digalactosyl diacylglycerol. The Chinese patent CN119286583A discloses a process for preparing various nutritional components from oat, which comprises the following steps of crushing oat, sieving to obtain oat bran, extracting the oat bran through a supercritical extraction technology to obtain pretreated oat bran and an extract, treating the extract through a gradient membrane and performing membrane ultrafiltration to obtain oat oil, extracting the pretreated oat bran through continuous sectional extraction equipment, extracting one-stage protein, extracting two-stage glucan, carrying out three-stage immobilized enzymolysis, decolorizing by using four-stage fillers, entering a system balance tank, separating the membrane, and concentrating to obtain oat beta-glucan. In addition, chinese patent No. 119606845A discloses a centella asiatica plant extract repairing agent which comprises the following components of olive leaf extract, centella asiatica root extract and oat kernel extract, wherein the preparation method of the extract components comprises the steps of crushing all raw materials, adding cellulase for enzymolysis, adding ethanol for soaking and extracting, filtering, adding equal volume of glycerol into filtrate, rotationally evaporating to remove the ethanol, centrifuging to obtain supernatant, drying filter residues, extracting with supercritical carbon dioxide for 2-3 hours to obtain oily extract, mixing the oily extract with the supernatant, and carrying out ultrasonic homogenization treatment to obtain the centella asiatica plant extract repairing agent. Most of the existing oat oil extraction processes do not pay attention to the influence of oat materials on extraction effects by combining with other auxiliary extraction methods, and also do not pay attention to the influence on moisturizing, anti-inflammatory effects and activities of oat oil. Therefore, it is necessary to provide a preparation method of refined oat oil by comprehensively utilizing all parts of oat seeds, so as to improve the utilization rate of oat and the effects of moisturizing, anti-inflammatory, anti-oxidation and the like of oat oil extracts. Disclosure of Invention Aiming at the problems existing in the prior art, the invention provides the oat refined oil extract, and the preparation method and the application thereof, and the oat refined oil extract obtained by separately processing oat kernel oil and oat bran extract and mixing the oat refined oil extract according to a specific proportion has remarkably improved moisturizing and anti-inflammatory effects; before supercritical carbon dioxide extraction, oat bran is subjected to microwave treatment, so that the yield of the extract is improved, and the active ingredients are not destroyed. In order to achieve the above purpose, the technical scheme adopted by the invention is as follows: Firstly, the