Valerian preparation and preparation method thereof
A kind of valerian, preparation technology, applied in pharmaceutical field
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[0070] Valerian capsule preparation, it is made from the raw material of following weight portion:
[0071]
[0072] A preparation method of valerian preparation (capsule), the steps are:
[0073] A. Use fresh valerian rhizomes and roots, wash away the dust and mud, drain and chop into pieces about 1-5cm long, and then carry out direct distillation with water-proof pressurized steam. The steam pressure at the initial stage of distillation (before the volatile oil starts to flow out) is 0.08 -0.12mPa, the steam pressure in the mid-distillation period is 0.02-0.06mPa, and the steam pressure in the later stage of distillation (10-20 minutes before the end of distillation) is 0.08-0.10mPa, and the duration is 1.5-2.5 hours. The volatile oil and medicinal residues are separated.
[0074] B. The medicinal residues are pre-dried (sun-dried or oven-dried or vacuum-dried) and placed in a percolation tank for compaction, and after soaking in 70-95% (v / v) ethanol with a concentration ...
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