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Method for extracting chlorophyll and aromatic oil from Chinese prickly ash leaves

A technology of chlorophyll and Zanthoxylum bungeanum, which is applied in the directions of essential oils/spices, organic chemistry, fat production, etc., can solve the problems of no processing technology of Zanthoxylum bungeanum leaves, no suitable processing technology of Zanthoxylum bungeanum leaves, etc., and achieve economical processing technology, good quality, and reduced The effect of usage

Active Publication Date: 2021-02-12
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 Zanthoxylum bungeanum leaves, which comprises the following steps: obtaining fresh Zanthoxylum bungeanum leaves and grinding them into a slurry; filtering the slurry to obtain a first filtrate and a first filter residue respectively; adding ethanol to the first filter residue and filtering to obtain respectively The second filtrate, the second filter residue, the first filtrate, and the second filtrate are mixed to obtain a mixed filtrate: the chlorophyll in the mixed filtrate is adsorbed by an adsorption column, and the mixed filtrate after adsorption by the adsorption column is Zanthoxylum bungeanum leaf juice, and the adsorption column is eluted and extracted Chlorophyll; distill the juice of pepper leaves to obtain an oil-water mixture; store the oil-water mixture in a sealed pool, and inject air evenly and continuously into the sealed pool; transfer the sealed oil-water mixture into an oil-water separator, and obtain aromatic oil under high-speed centrifugation ; Add acetone and ethanol mixture to the second filter residue, stir evenly, filter to obtain the filtrate, concentrate the filtrate and recover acetone and ethanol to obtain chlorophyll. The invention reduces the usage amount of the organic solvent.

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 Patents(China)
IPC IPC(8): C07D487/22C11B9/02
CPCC07D487/22C11B9/022C11B9/027
Inventor 卓士鸿
Owner 卓士鸿
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