Extraction method of ficus microcarpa dry extract and pithecellobium clypearia dry extract

Abstract

The invention provides an extraction method of a ficus microcarpa dry extract and pithecellobium clypearia dry extract. Fresh broken branches and leaves of ficus microcarpa and pithecellobium clypearia are extracted three times in a first extracting tank, and for the first time, 2 times of boiling water is added, boiled for 1 h and then discharged into a liquid storage tank; for the second time, 1.5-2 times of boiling water is added, boiled for 1 h and then also discharged into the liquid storage tank, filtering is carried out through 40-mesh filter cloth, and vacuum concentration is carried out on a filter liquor at less than 70 DEG C; for the third time, 2 times of boiling water is added and boiled for 1 h, then a weak liquor is discharged into a second extracting tank for one-time extraction, the mass ratio of the raw materials to the weak liquor is 1:2, the boiling water is boiled for 1 h and then discharged into the liquid storage tank, filtering is carried out through 40-mesh filter cloth, and vacuum concentration is carried out on the filter liquor at less than 70 DEG C; the vacuum concentration is carried out to the relative density of 1.24, when the water content is 65-70%, the filter liquor is discharged into a high-speed centrifugal spray drying tower, and dry powder is collected after drying is carried out for 3-5 s and when the air inlet temperature is 200-210 DEGC, the air outlet temperature is 80-95 DEG C. The extraction method of the ficus microcarpa dry extract and pithecellobium clypearia dry extract has the advantages that the extract yield can be increased, the content of effective components is increased, the quality of the treatment before Chinese traditional medicine production is ensured, and the cost is reduced by two times or above.

Description

technical field [0001] The invention belongs to the technical field of extracting Chinese herbal medicines, in particular to a method for extracting dry extracts of Ficus ficus and monkey earrings. Background technique [0002] The dry extract of Ficus sylvestris required for the production of Keteling capsules and Keteling tablets is prepared according to the Chinese Pharmacopoeia 2015 edition: take the dried branches and leaves of Ficus spp., add water to decoct twice, combine the decoctions, and concentrate the filtrate to relative density 1.10-1.20 (80°C) thick paste, let it cool, add ethanol to make the alcohol content reach 60%, let it stand for more than 12 hours, filter, recover ethanol from the filtrate, concentrate to a relative density of 1.3 (50°C) thick paste, 80 Dry and pulverize into fine powder below ℃. [0003] The monkey ear ring dry extract required for the production of monkey ear ring anti-inflammatory granule, monkey ear ring anti-inflammatory capsule ...

AI Technical Summary

Problems solved by technology

[0007] 3. Blow and dry the branches and leaves with hot air at 90°C, and the cost of fresh branches and leaves per ton will increase by 1,200 yuan; for naturally dried branches and leaves, the cost of fresh branches and leaves will increase by more than 500 yuan per ton, and the cost of storage and transportation will also increase

[0008] 4. Add ethanol when concentrating to a thick paste with a relative density of 1.1 to 1.2. Even if the ethanol content reaches 60%, let it stand for 12 hours, but the effect is not significant but will increase the cost

Adding the ethanol recycling fee of 28 yuan, the additional cost is 280 yuan more per ton of fresh branches and leaves

[0009] 5. The branches and leaves of Ficus ficus and monkey earrings have higher content in January, February, March, April, May, June, and December of the year. This season has less sunshine and more rain, so it is very easy to dry them naturally after harvesting. Difficult, the cost of heating and drying is too high, so the traditional picking is to choose to harvest and dry naturally in September and October, resulting in a very low content of active ingredients

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