A kind of zedoary oil extraction method and the zedoary oil obtained by the method and application thereof
An extraction method and technology of zedoary oil, applied to instruments, measuring devices, scientific instruments, etc., can solve the problems of complex operation, low purity, long processing time, etc., and achieve improved extraction efficiency, simple operation steps, and good product yield Effect
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preparation example Construction
[0071] Preparation of reference substance solution: take appropriate amount of geranylone reference substance and furandadiene reference substance, weigh them accurately, add absolute ethanol to make a mixed solution containing 30 μg of geranylone and 50 μg of furandadiene per 1 ml, and obtain .
[0072] Preparation of the test solution: Take 0.1g of this product (i.e. zedoary oil sample), accurately weigh it, put it in a 50ml measuring bottle, add absolute ethanol to the mark, shake well, accurately measure 5ml, put it in a 25ml measuring bottle, Add absolute ethanol to the mark, shake well, filter, take the continued filtrate, that is.
[0073] Determination method: Accurately draw 5 μl each of the reference substance solution and the test solution, inject it into the liquid chromatograph, measure, record the chromatogram, and get it.
[0074] linear inspection
[0075] Precisely draw 2, 4, 6, 8, 10, 12 μl of the mixed reference solution of geranylone (35 μg / ml) and furand...
Embodiment 1
[0103] After removing impurities from the curcuma dried in the shade, wash and slice, then dry at 50°C, crush and pass through a 50-mesh sieve for sieving;
[0104] Take 50g of the sieved warm zedoary powder, then add 8 times the mass of distilled water, in the volatile oil extractor, reflux extraction for 3 hours, steam condenses, collect the obtained zedoary oil, and obtain a total of 0.8ml of zedoary oil;
[0105] The oil yield rate is 1.6% (ml / g), and the resulting zedoary oil is compared with fingerprints, and the similarity is 0.861. The similarity comparison is as follows image 3 Shown; the specific rotation of the product is 22.23°.
Embodiment 2
[0107] After removing impurities from the warm curcuma after drying in the shade, wash and slice, then dry at 50°C, crush and pass through a 10-mesh sieve for sieving;
[0108] Take 30g of sieved warm zedoary powder, then add 8 times the mass of distilled water, in the volatile oil extractor, reflux extraction for 3 hours, steam condenses, collect the obtained zedoary oil, and obtain a total of 0.6ml of zedoary oil;
[0109] The oil yield rate is 2% (ml / g), and the obtained zedoary oil is compared through fingerprints, and the similarity is 0.878, and the similarity comparison is as follows Figure 4 Shown; the specific rotation of the product is 23.47°.
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