3 results about "Carnosol" patented technology

The application relates to a process for extracting rosmarinic acid and application of the extracted rosmarinic acid in plant oil, S1, rosemary leaves are added into a mixed solution of ethanol and water with a first-stage concentration and are heated for extraction, after the extraction is completed, a first-stage extraction liquid is obtained; S2, the first-stage extraction liquid is concentrated, the concentrated liquid is subjected to plate-frame pressure filtration, the filter cake is washed with water, a filtrate and a filter residue are obtained; S3, the filtrate is subjected to extraction, the extraction liquid is concentrated, and after drying, a rosemary acid crude product is obtained; S4, the filter residue is subjected to reextraction with a mixed solution of ethanol and water with a second-stage concentration, after the reextraction is completed, filtration is carried out, a filtrate and a filter residue are obtained; the filter residue is a crude extract of ursolic acid and rosmarinic acid; S5, the filtrate is subjected to decolorization, and then is concentrated into a paste, after vacuum drying, a rosmarinic acid crude product is obtained. The method in the application can separate multiple active substances, obtain multiple crude products, improve the utilization rate of rosemary, and thus reduce the production cost.

The present invention relates to a method for obtaining an extract of the leaves of Rosmarinus officinalis (rosemary) involving two stages of maceration, filtration, concentration of the two drained products and drying, guaranteeing an extract comprising mainly hydroxycinnamic derivatives, rosmarinic acid, luteolin, neptin and carnosol, and the use of the extract in cosmetic compositions in the prevention and treatment of androgenetic alopecia, in which the extract of the invention acts through multiple mechanisms of action, and can be used in men and women.

The invention provides an extraction method of torreya grandis aril essential oil, and belongs to the field of plant essential oil extraction. The method comprises the following steps: adding a stabilizer into a torreya grandis aril raw material and carrying out gradient squeezing; carrying out vacuum degassing treatment on the squeezed liquid, and adding a gel forming agent to prepare a gel intermediate; after heating and liquefying, carrying out two-section membrane distillation, and condensing to obtain an oil-water mixture; performing oil-water separation to obtain torreya grandis aril essential oil; wherein the stabilizer comprises an oil-soluble antioxidant and a water-soluble antioxidant, and the oil-soluble antioxidant comprises a plant extract in a wall material packaging form; antioxidant components of the plant extract comprise carnosic acid and / or carnosol; the gel forming agent comprises konjac glucomannan and carrageenan. According to the invention, the fresh torreya grandis aril which is extremely easy to rot and deteriorate is converted into the gel intermediate with low water activity and stable structure, and the gel intermediate can be safely stored at normal temperature for several months; and by combining the mild extraction of two-stage vacuum membrane distillation, the extraction amount and quality of the essential oil are effectively improved.