Pimaric acid type resin acid product and method for extracting pimaric acid type resin acid product from torreya grandis aril

The technology of Torreya aril and resin acid is applied in the field of pimaric acid-type resin acid mixture products, which can solve the problems of interference, difficulty and obstruction in separation and purification, and achieve the effects of easy separation and purification, simple operation and quality improvement.

Active Publication Date: 2014-10-15
INST OF CHEM IND OF FOREST PROD CHINESE ACAD OF FORESTRY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, for Torreya aril, its chemical composition is completely different from that of rosin or rosin. Although Torreya aril contains more pimaric acid-type resin acids, it also contains lignin, tannin, Water-insoluble or water-soluble substances such as polysaccharides and pectin also contain more oil-soluble substances such as chlorophyll, resin esters, waxes, and other neutral substances. Contains some impurities such as pectin and po

Method used

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  • Pimaric acid type resin acid product and method for extracting pimaric acid type resin acid product from torreya grandis aril
  • Pimaric acid type resin acid product and method for extracting pimaric acid type resin acid product from torreya grandis aril
  • Pimaric acid type resin acid product and method for extracting pimaric acid type resin acid product from torreya grandis aril

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0044] Example 1

[0045] Weigh about 200g of fresh torreya arils, cut them into pieces and place them in a 1000mL flask, add about 300mL-400mL distilled water and a few zeolite, connect the volatile oil tester and distilled water generator, and heat the flask until there is almost no oil on the condenser tube wall Turn off the heat source and cool to room temperature to obtain 2.0 mL of essential oil; the remainder in the flask is centrifuged (4000r / min, 5min) and then filtered to separate the aqueous solution from the solid. The solid is the essential oil. Extract the residue, repeat the above process until a sufficient amount of essential oil extraction residue is obtained.

[0046] Weigh 350g of the above-mentioned essential oil extraction residue, pulverize and add to a 2000mL flask, add about 1000mL of absolute ethanol, connect the reflux condenser, reflux for 3 hours, separate the solid and liquid by suction filtration, and then repeat the extraction twice for the obtained s...

Example Embodiment

[0050] Example 2

[0051] Weigh 350g of the dried residue after industrial extraction of essential oils (provided by Zhejiang Zhuji Fengri Perfume Technology Co., Ltd.), add 1000mL of absolute ethanol, perform 3 extractions, share 3000mL of ethanol to obtain 96.1g of brown extract, GC analysis The results show that the extract contains as many as 200 components, of which the total content of resin acid is about 50%. Excluding the chlorophyll and polysaccharides that do not peak during GC analysis, it is estimated that the actual resin acid content is about Is about 30%. Weigh 45.2g of the obtained extract, place it in a beaker, add 60mL of water, place it in a hot water bath and stir and heat to 60℃~70℃, add dropwise 100mL of 10% KOH aqueous solution for saponification for 2h, add 150mL of ether Extracted 3 times, added dropwise 10% HCl aqueous solution for acidification, and collected 23.6 g of yellow-green solid product. GC analysis showed that it contained about 70 components...

Example Embodiment

[0053] Example 3

[0054] Weigh 38.0g of the extract obtained in Example 2 into a beaker, add 60mL of water, place in a hot water bath and stir and heat to 60℃~70℃, add dropwise 40mL of 15% KOH aqueous solution for saponification, add 150mL Ether was extracted three times, and a 20% HCl aqueous solution was added dropwise for acidification, and the precipitated solid matter was collected to obtain 17.2 g of yellow-green solid product. Weigh 3.53 g of the solid product, and perform silica gel column chromatography with benzene:ethyl acetate=10:1 as the eluent to obtain 0.85 g of the pimaric acid resin acid mixture product, with a total extraction rate of 3.2%. The rest of the operation process that is not described is the same as in Embodiment 1. The GC analysis result of the pimaric acid resin acid mixture product shows that the pimaric acid resin acid content is 89.45%, and the total resin acid content is 98.15%.

[0055] The main components of the pimaric acid resin acid mixtur...

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Abstract

The invention discloses a pimaric acid type resin acid product and a method for extracting the pimaric acid type resin acid product from torreya grandis aril. The method includes the following steps: residues obtained by extracting torreya grandis aril essential oil is used as raw material, and ethyl alcohol, methylbenzene or hexane is used as a solvent; reflux extraction is performed, and separation is performed for removing the solvent, so that a paste extract is obtained; the paste extract is dissolved in water, a sodium hydroxide aqueous solution or a potassium hydroxide aqueous solution is added for saponification, so that acids such resin acid and other esters are converted into water-soluble resin acid salts; the water-soluble resin acid salts are extracted by an organic solvent to enable the water-soluble resin acid salts to be separated from non-acid substances, resinate in the obtained aqueous solution is converted into free resin acid by hydrochloric acid or sulfuric acid, and the free resin acid is separated out from the solution, and the obtained free resin acid is subjected to column chromatography isolation and purification, so that a pimaric acid type resin acid mixture product is obtained. The main component of the product is pimaric acid type resin acid, and meanwhile, the product contains less secondary component abietic acid type resin acid.

Description

technical field [0001] The invention relates to the field of plant extracts, in particular to a pimaric acid-type resin acid mixture product extracted from Torreya aril and a technical method for extracting the pimaric acid-type resin acid mixture product from Torreya aril. Background technique [0002] Torreya torreya is a plant of the genus Taxaceae, which is mainly produced in China. Its cultivation history in my country has reached 1300 years. Zhuji and Dongyang in Zhejiang Province are its main planting areas. At present, the output of Torreya torreya in Zhejiang Province is about 1,000 tons to 1,500 tons. Torreya torreya is rich in nutrition, rich in fat, protein and multivitamins, and has high medicinal value. Its seeds have a history of eating for thousands of years as valuable nuts and dried fruits. The outer layer of Torreya torreya fruit is wrapped with a layer of fleshy aril, which accounts for about 50% to 60% of the fresh weight of its seeds. Different from T...

Claims

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Application Information

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IPC IPC(8): C09F1/04C09F1/02
Inventor 赵振东王婧李冬梅古研卢言菊毕良武陈玉湘徐士超
Owner INST OF CHEM IND OF FOREST PROD CHINESE ACAD OF FORESTRY
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