Process for obtaining an anti-hypertensive principle from {i anacardium occidentale {b L.
阅读：17发布：2023-12-20
专利汇可以提供Process for obtaining an anti-hypertensive principle from {i anacardium occidentale {b L.专利检索，专利查询，专利分析的服务。并且A process for extracting an anti-hypertensive principle for treatment of animals from the bark of Anacardium occidentale L. by treatment of the bark with a series of solvents of increasing polarity and then isolating the tannins containing the antihypertensive principle by means of caffein.，下面是Process for obtaining an anti-hypertensive principle from {i anacardium occidentale {b L.专利的具体信息内容。
1. A PROCESS FOR EXTRACTING AN ANTI-HYPERTENSIVE PRINCIPLE FOR TREATMENT OF ANIMALS FROM THE BARK OF ANACARDIUM OCCIDENTALE L. COMPRISING THE STEPS OF GRINDING THE BARK, TREATING 20 TO 80 GRAMS OF THE GROUND BARK WITH 1 LITER OF PETROLEUM ETHER IN THE ABSENCE OF LIGHT AT A TEMPERATURE OF FROM 0* TO 15*C. FOR 8 HOURS FILTERING THE TREATED BARK TO OBTAIN AN INSOLUBLE RESIDUE AND A FILTRATE, TREATING THE INSOLUBLE RESIDUE WITH 1 LITER OF DIETHYL ETHER IN THE ABSENCE OF LIGHT AT A TEMPERATURE OF FROM 0* TO 15*C. FOR 8 HOURS, FILTERING THE TREATED INSOLUBLE RESIDUE TO OBTAIN AND INSOLUBLE RESIDUE AND A FILTRATE, TREATING THE INSOLUBLE RESIDUE WITH AN ALCOHOL REAGENT SELECTED FROM THE GROUP CONSISTING OF A 35% TO 85% AQUEOUS SOLUTION OF ETHANOL METHANOL AND MIXTURES THEREOF IN THE ABSENCE OF LIGHT AT A TEMPERATURE OF FROM 0* TO 15*C. FOR 24 HOURS, FILTERING THE ALCOHOL TREATED INSOLUBLE RESIDUE TO OBTAIN A FILTRATE AND AN INSOLUBLE RESIDUE, DRYING THE FILTRATE BY REMOVING THE ALCOHOL REAGENT IN THE ABSENCE OF LIGHT AND IN VACOU AT A TEMPERATURE BELOW 60*C. TO OBTAIN A DRY EXTRACT CONTAINING THE ANTIHYPERTENSIVE PRINCIPLE, DISSOLVING 5 GRAMS OF THE DRY EXTRACT IN ABOUT 30 ML. OF WATER, TREATING THE SOLUTION WITH 110 ML. OF A WATER CONTAINING 12 GRAMS OF CAFFEIN PER LITER TO PRECIPITATE TANNIS AND THE ANTI-HYPERTENSIVE PRINCIPLE, SEPARATING THE PRECIPITATE FROM THE REMAINING LIQUID, DISSOLVING THE PRECIPITATE IN 10 TO 20 ML. OF METHANOL PER 5 GRAMS OF PRECIPITATE, ADDING WATER TO MAKE A TOTAL OF 250 ML. TREATING THE SOLUTION WITH 10 TO 100 ML. OF CHLOROFORM THREE SUCCESSIVE TIMES TO EXTRACT THE CAFFEIN, AND CONCENTRATING THE REMAINING WATER-METHANOL PHASE IN VACOU AT A TEMPERATURE BELOW 60*C UNTIL DRY.
1. A process for extracting an anti-hypertensive principle for treatment of animals from the bark of Anacardium occidentale L. comprising the steps of grinding the bark, treating 20 to 80 grams of the ground bark with 1 liter of petroleum ether in the absence of light at a temperature of from 0* to 15*C. for 8 hours, filtering the treated bark to obtain an insoluble residue and a filtrate, treating the insoluble residue with 1 liter of diethyl ether in the absence of light at a temperature of from 0* to 15*C. for 8 hours, filtering the treated insoluble residue to obtain and insoluble residue and a filtrate, treating the insoluble residue with an alcohol reagent selected from the group consisting of a 35% to 85% aqueous solution of ethanol, methanol and mixtures thereof in the absence of light at a temperature of from 0* to 15*C. for 24 hours, filtering the alcohol treated insoluble residue to obtain a filtrate and an insoluble residue, drying the filtrate by removing the alcohol reagent in the absence of light and in vacuo at a temperature below 60*C. to obtain a dry extract containing the antihypertensive principle, dissolving 5 grams of the dry extract in about 30 ml. of water, treating the solution with 110 ml. of water containing 12 grams of caffein per liter to precipitate tannis and the anti-hypertensive principle, separating the precipitate from the remaining liquid, dissolving the precipitate in 10 to 20 ml. of methanol per 5 grams of precipitate, adding water to make a total of 250 ml., treating the solution with 10 to 100 ml. of chloroform three successive times to extract the caffein, and concentrating the remaining water-methanol phase in vacuo at a temperature below 60*C until dry.
2. A process as claimed in claim 1, wherein the alcohol reagent is selected from the group consisting of a 75% aqueous solution of ethanol, methanol and mixtures thereof.
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