Method for simultaneously preparing indocalamus leaf volatile oil, total flavone and total polysaccharide

A technology of volatile oil and total flavonoids is applied in the field of biological active ingredients, which can solve the problems of single extraction, high extraction cost, low resource utilization rate, etc., and achieve the effects of avoiding resource waste, reducing cost and improving resource utilization rate.
CN102671017AInactive Publication Date: 2012-09-19HUBEI CHANGYOU MODERN AGRI CO LTD
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Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Applications(China)
Current Assignee / Owner
HUBEI CHANGYOU MODERN AGRI CO LTD
Publication Date
2012-09-19
Estimated Expiration
Not applicable Β· inactive patent

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Abstract

The invention discloses a method for simultaneously preparing indocalamus leaf volatile oil, total flavone and total polysaccharide, which comprises the following steps: taking indocalamus leaf powder and adding water of 5-12 times in weight; dipping for 0-4h; extracting for 2-12h through a steam distillation method; extracting through organic solvent to obtain the volatile oil; keeping the extracted medicine liquid for later use; adding 20-50% of ethanol of 6-12 times in raw dose mass by weight into the medicine dreg; carrying out backflow extraction for 2-3 times of 0.5-1.5h each time; filtering; combining each extracted liquid and extracting the medicine liquid after extracting the volatile oil; depressurizing and concentrating so as to obtain the extractive; adding water for dissolution; making the concentration of the loading solution be 0.4-1.0 g / ml by raw dose mass; passing through macroporous resin, wherein the absorbing flow speed is 1-3 BV / h, and the resin column height ratio is 1:5-8; firstly eluting using water for 2-4 BV; depositing the eluting liquid using the ethanol; drying to obtain the polysaccharide; subsequently eluting using 40-90% of ethanol for 3-6 BV, wherein the elution flow speed is 0.8-2 BV / h; and concentrating the eluting liquid and drying to obtain the total flavone.
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Description

technical field

[0001] The invention relates to the technical field of deep processing of agricultural products, in particular to a method for simultaneously extracting volatile oil, flavonoids, polysaccharides and other biologically active ingredients from Ruo leaves. The method involves integrating steam distillation, macroporous resin technology, vacuum concentration technology and other methods for extracting biologically active ingredients from the leaves. Background technique

[0002] Ruoye is the leaf of the plant of the genus Indocal.mus in the Graminales subfamily Bambusoideae Nees. It is mainly distributed in the provinces and autonomous regions south of the Yangtze River. Ruo leaves can be used to wrap glutinous rice and cook it into food. This food is one of the traditional delicacies of the Chinese nation. It has a long history in southern my country. It has a special fragrance, is convenient to eat, and is resistant to storage. Modern medicine shows that Ruo ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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