Extraction and separation purification method for total alkaloids in zanthoxylum dissitum hemsl
A technology for separation and purification of total alkaloids, applied in the fields of plant/algae/fungus/moss components, pharmaceutical formulations, plant raw materials, etc. To solve the problem, to achieve the effect of fast and economical extraction, separation and purification, efficient and fast extraction process, and perfect extraction and preparation process
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Embodiment 1
[0037] Effect of Different Solvents on Microwave Extraction
[0038] Weigh 10 parts of each 10g of mixed crude drug powder of single-faced needle rhizome after vacuum drying, add 20mL of 1% (v / v) ammonia water to infiltrate respectively, and then distilled water, absolute ethanol, n-butanol, chloroform, acetone, acetic acid Ethyl ester, ethanol-ethyl acetate (v:v=1:1), ethanol-n-butanol (v:v=1:1), ethanol-chloroform (v:v=1:1), ethanol-acetone ( v:v=1:1) is the extraction solvent, the crude drug powder and 10 times the amount of solvent are put into the flask and mixed evenly, after soaking for 15 hours, microwave extraction at 70°C for 20 minutes, the extract is concentrated to obtain the extract, and the water-soluble alkaloids are calculated The results are shown in Table 1. So choose ethanol-acetone (1:1) mixed solution as the extractant.
[0039] Table 1 The effect of microwave extraction of single-sided needles with different solvents
[0040]
Embodiment 2
[0042] Effects of Rhizome Powders with Different Particle Sizes and Mixing Ratio on Microwave Extraction
[0043] Weigh 5 parts of dried A. chinensis root and stem powder, pass through 40, 60, 80, and 100 mesh sieves respectively, and mix them according to the ratio of 1:1, 1:2, and 1:3 to form a 5g mixed sample. Add 50mL of 80% mixed extraction solvent respectively, the ratio of solid to liquid is 20g / mL, soak for 15h, then extract by microwave at 70°C for 20min, filter, repeat the extraction once with the filter residue, combine the two filtrates, and calculate the total alkaloid extraction amount, the result As shown in Table 2, different particle sizes and different rhizome mixing ratios will also affect the extraction effect of the total alkaloids of T.
[0044] Table 2 The effect of different mixing ratios of rhizomes and the number of sieves on the extraction of single-sided needles
[0045] Rhizome mixing ratio 1:1 Rhizome mixing ratio 1:2 Rhizome mixi...
Embodiment 3
[0048] Effect of extraction solvent concentration on extraction effect
[0049] Take by weighing 5 parts of dry rhizome powder of Shamrock, each 5g. Add 50mL of mixed extraction solvents of 50%, 60%, 70%, 80%, and 90% respectively, and the ratio of solid to liquid is 20g / mL. After soaking for 15h, extract by microwave at 70°C for 20min, filter, and use the same method to repeatedly extract the filter residue once, and combine Two filtrates were used to calculate the total alkaloid extraction. In the range of 50% to 90% of the fraction of the mixed extraction liquid, with the increase of the fraction of the mixed extraction liquid, the extraction rate of the total alkaloids gradually increased. When the mixed extraction liquid fraction was greater than 80%, the total alkaloid extraction rate decreased ( figure 1 ). Therefore, when the fraction of the mixed liquid is 80%, the polarity of the extracting liquid is the closest to that of the total alkaloids of T. chinensis, and ...
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