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Preparation process of pine bark proanthocyanidin

A kind of skin proanthocyanidin and production process technology, applied in the field of obtaining antioxidants, can solve the problems of unsatisfactory operation procedures and processes, large alcohol consumption, etc., and achieve the effects of low production cost, less alcohol consumption, and simple process flow

Inactive Publication Date: 2007-03-07
浙江瑞康生物技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The defective that this technique exists is: a. alcohol consumption is big
Apparently, its specific operating procedure and craft are not ideal enough

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] ①Take the bark of masson pine or red pine from the wood processing factory, remove the outer layer of old bark, take the inner cortex, dry it in the sun, and crush it for later use. Add tap water 10 times that of the raw material, boil and reflux for 2 hours, pass through a 300-mesh pipeline filter, and release the first extract; Extract the liquid; then add 1 times hot water to wash the filter residue, then release the washing liquid, and combine the three liquids to obtain the total extract;

[0020] ② Centrifugation: Put the above-mentioned extract solution that has been cooled to 50°C-70°C on an ordinary three-legged centrifuge with a 500-mesh filter cloth, and directly centrifuge to remove finer particles and residues to obtain a centrate; then, Place the centrifugate in a conical tank for 3 hours, remove the flocculated material at the bottom, and obtain a clarified extract;

[0021] ③Through the column: put the clarified extract solution on the macroporous resin...

Embodiment 2

[0026] ①Extraction: as in Example 1①;

[0027] ② Centrifugation: as in Example 1②;

[0028] ③Column passage: Put the clarified extract obtained in step ② on the macroporous resin column at a slow speed. The resin model can be CAD40. The procyanidins are selectively adsorbed by the resin, and the water-soluble impurities that are not adsorbed by the resin flow out with the water; After all flow through the column, rinse the resin column with deionized water to wash away the unadsorbed impurities; then wash the resin with 20% alcohol to obtain eluent A; then wash the resin with 40-60% alcohol to obtain Eluent B;

[0029] ④ Concentration: Concentrate the eluent A and the eluate B respectively at a vacuum degree of 0.6Mpa and a temperature of 70°C, recover alcohol respectively, and obtain two concentrated solutions with a Baume degree of 15°;

[0030] ⑤Drying: Pump the two concentrates into respective spray drying towers for spray drying. The air inlet temperature of the tower i...

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PUM

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Abstract

The invention discloses a manufacturing method to extract pine cyanin, which comprises the following steps: lixiviating, centrifuging, columning; condensing; drying; adopting one pattern of PN700, CAD40, YWD04B1 or YWD09D to adsorb cyanin selectively; washing resin through purified water or deionized water; recycling alcohol through decompressing and distilling; obtaining the dried powder through spraying drying tower.

Description

technical field [0001] The invention relates to a method for obtaining antioxidants from plant bark, in particular to a process for extracting pine bark proanthocyanidins from pine bark. Background technique [0002] Pine bark proanthocyanidins are one of the strong antioxidants obtained from plants, which belong to condensed tannins without any toxic side effects. The chemical composition is divided into two categories: "oligomer" with smaller molecular weight and superior function, and "polymer" with larger molecular weight and slightly inferior function. Proanthocyanidins have the effect of removing free radicals in the human body, can prevent and treat cardiovascular and cerebrovascular diseases, have anti-tumor, anti-radiation, anti-inflammatory, anti-allergic effects, and have direct and indirect preventive and therapeutic effects on more than 70 diseases in the human body. It is also a beauty and health care product, known as "skin vitamin" and "oral cosmetics". The...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07D311/62
Inventor 胡云峰
Owner 浙江瑞康生物技术有限公司
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