Method for extracting chlorophyll and aromatic oil from leaves of Zanthoxylum bungeanum

A chlorophyll, prickly ash leaf technology, applied in the directions of essential oils/spice, fat production, organic chemistry, etc., can solve the problems of no applicable prickly ash leaf processing technology, no prickly ash leaf processing technology, etc., to help recycling and reduce usage Effect

Active Publication Date: 2019-11-22
卓士鸿
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is that there is currently no processing technology suitable for Zanthoxylum bungeanum leaves, which can effectively utilize components such as aromatic oil and chlorophyll in Zanthoxylum bungeanum leaves, resulting in a large amount of waste of Zanthoxylum bungeanum leaves, and the purpose is to provide Zanthoxylum bungeanum leaves for extracting chlorophyll and aromatic oils. The method solves the problem that there is no processing technology suitable for Zanthoxylum bungeanum leaves at present, and can effectively utilize the components such as aromatic oil and chlorophyll in Zanthoxylum bungeanum leaves

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] The method for extracting chlorophyll and aromatic oil from Zanthoxylum bungeanum leaves of the present invention comprises the following steps:

[0029] S1. Obtain fresh Zanthoxylum bungeanum leaves, wash, drain and grind into slurry;

[0030] S2. Squeeze and filter the slurry in step S1 to obtain the first filtrate and the first filter residue respectively; add ethanol to the first filter residue and filter to obtain the second filtrate and the second filter residue respectively, and mix the first filtrate and the second filtrate to obtain a mixed filtrate:

[0031] S3. After the mixed filtrate is filtered for 3-5 times, use the adsorption column to absorb the chlorophyll in the mixed filtrate. The mixed filtrate after adsorption by the adsorption column is Zanthoxylum bungeanum leaf juice, and the adsorption column is eluted, and the eluent is obtained after the adsorption column is eluted. , the eluate is concentrated to obtain chlorophyll after removing impurities...

Embodiment 2

[0042] Based on embodiment 1, the method for extracting chlorophyll and aromatic oil from prickly ash leaves of the present invention comprises the following steps:

[0043] S1. Obtain fresh Zanthoxylum bungeanum leaves, wash the fresh Zanthoxylum bungeanum leaves with cold water at a temperature of 5-10°C, drain and grind them into a slurry;

[0044] S2. Squeeze and filter the slurry in step S1 to obtain the first filtrate and the first filter residue respectively; add ethanol to the first filter residue and filter to obtain the second filtrate and the second filter residue respectively, and mix the first filtrate and the second filtrate to obtain a mixed filtrate:

[0045] S3. After the mixed filtrate is filtered for 3-5 times, use the adsorption column to absorb the chlorophyll in the mixed filtrate. The mixed filtrate after adsorption by the adsorption column is Zanthoxylum bungeanum leaf juice, and the adsorption column is eluted, and the eluent is obtained after the adso...

Embodiment 3

[0055] Based on Example 2, the performance of the aromatic oil extracted according to the method of Example 2 was tested, and the aromatic oil prepared by the prior art was used as a control group. The results are shown in Table 2.

[0056] Table 2 Aromatic oil performance test

[0057] Test items aroma oil control group transparency transparent slightly turbid Moisture content (%) 0.03 0.12 Lead (in pb), mg / kg 0.33 0.52 purity(%) 98.8 93.6

[0058] The quality of the aromatic oil prepared by the invention is better than that prepared by the prior art.

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Abstract

The invention discloses a method for extracting chlorophyll and aromatic oil from leaves of Zanthoxylum bungeanum. The method comprises the following steps: picking fresh leaves of Zanthoxylum bungeanum; grinding the leaves into slurry; filtering the slurry to respectively obtain a first filtrate and first filter dregs; adding ethanol into the first filter dregs, then performing filtration to obtain a second filtrate and second filter dregs; mixing the first filtrate and the second filtrate to obtain a mixed filtrate; adsorbing chlorophyll in the mixed filtrate by utilizing an adsorption column, with the mixed filtrate adsorbed by the adsorption column being Zanthoxylum bungeanum leaf juice, and eluting the adsorption column to extract the chlorophyll; distilling the Zanthoxylum bungeanumleaf juice to obtain an oil-water mixture; storing the oil-water mixture in a sealedpool, and uniformly and continuously injecting air into the sealed pool; transferring the sealed oil-water mixture into an oil-water separator, and obtaining aromatic oil in a high-speed centrifugal state; and adding an acetone-ethanol mixed solution into the second filter dregs, uniformly stirring the mixture, filtering the mixture to obtain a filtrate, and concentrating the filtrate to recover acetone and ethanol and to obtain chlorophyll. The use amount of the organic solvent is reduced.

Description

technical field [0001] The invention relates to a method for preparing chlorophyll and aromatic oil, in particular to a method for extracting chlorophyll and aromatic oil from prickly ash leaves. Background technique [0002] Zanthoxylum bungeanum is pungent in taste, hot in nature, and returns to the spleen and stomach meridians; it has the effects of invigorating the stomach, warming the middle and dispelling cold, dehumidifying and relieving pain, killing insects and detoxifying, relieving itching and relieving fishy smell; mainly treating vomiting, wind-cold-damp arthralgia, toothache and other diseases; Zanthoxylum bungeanum belongs to the small tree or shrub plant of Rutaceae, and the dried peel of its fruit is one of the eight condiments. [0003] Not only the fruit of Zanthoxylum bungeanum has medicinal and edible value, but the leaves of Zanthoxylum bungeanum also have the performance and taste of Zanthoxylum bungeanum. Zanthoxylum bungeanum leaves not only contain ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07D487/22C11B9/02
CPCC07D487/22C11B9/022C11B9/027
Inventor 卓士鸿
Owner 卓士鸿
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