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82 results about "Genipinine" patented technology

Beta-glucosidase high-yielding strain and application thereof in conversion preparation of genipin and resveratrol

The invention discloses a beta-glucosidase high-yielding strain. The beta-glucosidase high-yielding strain is screened from the nature, with fructus gardenia as a carbon source, and has a preservation number of CCTCC No.M2013634 and is classified and named as penicillium rolfsii HXL; the strain is able to efficiently convert geniposide and polydatin into genipin and resveratrol; on that basis, a method for converting and preparing genipin and resveratrol by using the beta-glucosidase high-yielding strain above is created. The method has the advantages that geniposide and polydatin are respectively hydrolyzed under a mild condition, so as to avoid the shortage of the loss of active ingredients of the traditional method, and thus the yield is effectively increased; in addition, the active ingredients, namely, geniposide or polydatin, of fructus gardenia or polygonum cuspidatum are converted by mass under an in-vitro controllable condition by the modern microbial fermentation engineering technology and enzyme engineering technology, and thus the production cost is decreased, and the production efficiency is improved. With the adoption of the beta-glucosidase high-yielding strain, a feasible manner is provided for industrially producing beta-glucosidase, genipin and resveratrol as mass, large economic benefit and social benefit are brought, and the market development prospect is wide.
Owner:YULIN NORMAL UNIVERSITY

Method for extracting aucubin and geniposide from eucommia ulmoides peel at same time

The invention discloses a method for extracting aucubin and geniposide from eucommia ulmoides peel at the same time. The method includes the steps of firstly, weighing aucubin, geniposide and cobaltous acetate to be dissolved in an acetonitrile-dimethyl sulfoxide mixed solution according to a certain proportion, conducting shaking, adding functional monomers to be shaken, adding mixed cross-linking agent TRIM-DVB and initiator AIBN to be sufficiently mixed, transferring the mixture into a round-bottom flask, and conducting degassing, argon introducing and bottle sealing; secondly, putting the mixture in a constant-temperature water bath kettle at the temperature of 60 DEG C to be subjected to a polymerization reaction, and conducting smashing, screening, depositing, filtering, eluting and vacuum drying; thirdly, putting obtained molecularly imprinted polymers into a solid-phase extraction cylinder, conducting washing and eluting after sample adding, and obtaining aucubin and geniposide. Through the metal ion coordination imprinting technology, binary compound metal ion complex serves as a template molecule, molecule imprinting polymers with high selection recognition performance is synthesized, and quite high practical value is achieved when aucubin and geniposide are extracted from eucommia ulmoides peel at the same time through the polymers.
Owner:河北汇正生物科技有限公司

Preparation method of immobilized enzyme and application of immobilized enzyme in geniposide conversion

The invention discloses a preparation method of an immobilized enzyme. The preparation method comprises the following steps: performing cross-linking on polysaccharide sodium alginate with genipin; adding beta-glucosidase, and polymerizing to obtain a polymerized solution; dropwise adding the polymerized solution into a CaCl2 solution to form immobilized beads; performing metal ion substitution on the immobilized beads in a MnSO4 solution to form hybrid manganese alginate immobilized particles. The invention further discloses a geniposide conversion method which comprises the following steps: performing continuous bioconversion on the prepared hybrid manganese alginate immobilized particles in a packed bed reactor (PBR), and hydrolyzing geniposide to prepare the genipin. The preparation method has the benefits that through an immobilization method, the immobilized enzyme is better in stability and hydrolysis performance in comparison with a free enzyme, the time for achieving the same hydrolysis effect is shortened by more than half, and the hydrolysis process is more complete; the duration time is more than 500 hours and the conversion rate is kept about 90% during the continuous conversion process in the PBR.
Owner:HEFEI INSTITUTES OF PHYSICAL SCIENCE - CHINESE ACAD OF SCI

Oxalic acid and genipin cross-linked hydrogel filter membrane and application thereof in molecular ion separation under high salinity

A calcium alginate hydrogel film has good anti-pollution performance and molecular interception performance. However, the calcium alginate hydrogel is poor in stability and mechanical strength in a high-salinity aqueous solution. The invention discloses an oxalic acid and genipin cross-linked hydrogel filter membrane and application of the oxalic acid and genipin cross-linked hydrogel filter membrane in molecular ion separation under high salinity. The method comprises the following steps: preparing a mixture aqueous solution of sodium alginate and a polymer reinforcing agent as a membrane casting solution, scraping the membrane casting solution to form a membrane, and conducting crosslinking with oxalic acid and a genipin aqueous solution. Oxalic acid is simultaneously crosslinked with hydroxyl on the polymer reinforcing agent and hydroxyl on the alginate, and genipin is crosslinked with hydroxyl on the polymer reinforcing agent, amino and hydroxyl on the alginate. The obtained oxalicacid and genipin cross-linked hydrogel filter membrane can tolerate a high-concentration inorganic salt solution. The filter membrane has a low rejection rate on inorganic salt, has a high rejectionrate on body type molecules with the molecular weight of more than 650, and is particularly suitable for separation of molecular ions under high salinity.
Owner:TIANJIN POLYTECHNIC UNIV
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