Patents
Literature
Hiro is an intelligent assistant for R&D personnel, combined with Patent DNA, to facilitate innovative research.
Hiro

99 results about "Alkannin" patented technology

Alkannin is a natural dye that is obtained from the extracts of plants from the borage family Alkanna tinctoria that are found in the south of France. The dye is used as a food coloring and in cosmetics. It is used as a red-brown food additive in regions such as Australia, and is designated in Europe as the E number E103, but is no longer approved for use. Alkannin has a deep red color in a greasy or oily environment and a violet color in an alkaline environment.

Preparation method of high optical purity shikonin and alkannin, and derivatives thereof

The invention discloses a preparation method of high optical purity shikonin and alkannin, and derivatives thereof. According to the invention, an intermediate separation means is used to prepare the high optical purity shikonin and alkannin, and the derivatives thereof, wherein the intermediate separation is that an amide diastereomer is formed from a carboxyl-contained intermediate and chiral amine, and separation is carried out through column chromatography or a recrystallization process. The derivatives of shikonin and alkannin are tetramethoxylated derivatives with shikonin and alkannin as mother nuclei, dimethoxylated-2-sidechainisomer derivatives and dimethoxylated-6-sidechainisomer derivatives with shikonin and alkannin as mother nuclei, 1,4-diacetoxylated-5,8-dimethoxylated-2-sidechainisomer derivatives and 1,4-diacetoxylated-5,8-dimethoxylated-6-sidechainisomer derivatives with shikonin and alkannin as mother nuclei, and diacetoxylated-6-sidechainisomer derivatives and diacetoxylated-2-sidechainisomer derivatives with shikonin and alkannin as mother nuclei. The preparation method of the invention, which has the advantages of easily available raw material, low price and high yield of each step reaction, is suitable for the large scale preparation.
Owner:SHANGHAI JIAO TONG UNIV

Sinkiang alkanna tinctoria cell lines and process for producing sinkiang alkanna tinctoria alkannin by cell culture

The invention provides an Arnebia euchroma mauve cell line for stable and high yield of alkannin, wherein, the content of alkannin compounds can reach 6 to 8 percent of the dry weight of culture and is 5 to 9 times of that of wild and natural Arnebia euchroma. The invention also provides a culture technique for the cell line and a method for mass and quick production of the culture of the cell line. The method breaks the routine lithospermum cell two-step culture method, adopts one-step culture method to cultivate the lithospermum cell culture and then realizes production of Arnebia euchroma cells through the method of combination of cell suspension culture and culture of solid culture medium and quick production of effective compositions. The method adopts combination of liquid culture and solid culture, produces seeds through liquid culture, obtains the culture through solid culture and selects and uses reserved seeds with good comprehensive properties for liquid culture, and the steps are repeated. Moreover, the production of the Arnebia euchroma cells by adoption of the method does not occupy arable lands and destroy wild resources of Arnebia euchroma, thereby the environment is protected and the problem of shortage of Arnebia euchroma resources is solved.
Owner:DALIAN PRACTICAL BIOTECH

Method for extracting cannabidiol by purple sulfur bacteria fermentation and application of cannabidiol

The invention belongs to the technical field of chemical drug intermediate extraction, and discloses a method for extracting cannabidiol by purple sulfur bacteria fermentation. The method comprises the following steps: by using one or more of flowers, leaves and hemp bran of industrial hemp as raw materials, drying and pulverizing to obtain a hemp raw material of which the water content does not exceed 5%; adding water and a cultured purple sulfur bacterium fermentation liquor into a transparent organic glass tank filled with the crushed hemp raw material, and irradiating, sealing and standingfor 24-30 hours to obtain a hemp fermentation liquor; filtering the fermentation liquor to remove residues; performing low-temperature reduced-pressure concentration to obtain a primary extract containing cannabidiol; and removing impurities by using macroporous resin, and purifying by using silica gel column chromatography to obtain cannabidiol with the purity of more than 80%. The method is simple to operate and low in cost, and has good popularization and application values. The invention also discloses application of cannabidiol as a main component, and alkannin, essential oil and other components are added or not added, so that the traditional Chinese medicine composition has the effects of treating infantile red buttocks, eczema, urination rash, saliva rash and the like.
Owner:云南植源生物科技有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products