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
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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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