Preparation method of fructus cannabis extract

Abstract

The invention relates to the technical field of traditional Chinese medicine extraction, and discloses a preparation method of a fructus cannabis extract. The preparation method comprises the following steps: preparing fructus cannabis decoction pieces into coarsest powder, putting the coarsest powder and water with the weight being 6-12 times that of the coarsest powder into an extraction tank, adding beta cyclodextrin with the weight being 2-10% of that of the coarsest powder of fructus cannabis into water with the weight being 5-20 times that of the coarsest powder of fructus cannabis to prepare a beta cyclodextrin solution, dynamically stirring, keeping micro-boiling decoction for 0.5-3h, and filtering to obtain a first extracting solution and medicine residues; putting the medicine residues and water with the weight being 5-12 times that of the coarsest powder of fructus cannabis into the extraction tank, dynamically stirring, keeping micro-boiling decoction for 0.5-3h, and filtering to obtain a second extracting solution; combining the two extracting solutions, and centrifuging to obtain a centrifugate; and carrying out low-temperature reduced pressure concentration on the centrifugate until the relative density is 1.05-1.15, measuring the relative density at 60 DEG C, and carrying out spray drying or belt drying to obtain the fructus cannabis extract. According to the preparation method, water-soluble substances of fructus cannabis can be effectively extracted, and fat-soluble components can be effectively extracted, so that a complex process of oil pressing and theninclusion is avoided, and the process is effective, simple and feasible and is suitable for large-scale production.

Description

technical field [0001] The invention relates to the technical field of traditional Chinese medicine extraction, in particular to a preparation method of hemp seed extract. Background technique [0002] Hempseed is the dry and mature seed of the Moraceae plant hemp, also known as pockmark kernel, hemp seed, hemp, white pockmark, winter pockmark, etc., widely distributed in Northeast China, North China, South China and other places. Modern research shows that hemp seed is rich in nutrition, rich in protein, oil and dietary fiber, and has good effects of lowering blood fat, anti-inflammation, anti-oxidation, and improving memory. Hemp seed oil is the oil extract of hemp seed, and its content is as high as more than 50% in hemp seed. Hemp seed oil contains a large amount of unsaturated fatty acids, which has the effects of lowering blood fat, anti-oxidation, and improving memory. [0003] At present, the preparation method of the water extract of hemp seed is mostly prepared b...

AI Technical Summary

Problems solved by technology

The hemp seed is directly extracted by water, and the hemp seed oil cannot be fully extracted and utilized, and the cream yield is low, and the amount of extract is small; while the method of first pressing the oil and then water extraction, although the hemp seed oil can be collected first, it needs to increase Oil extraction equipment (increased cost), increased process (time-consuming), and the extracted oil needs to be further processed before it can be mixed with the extract, otherwise the stability of the extract is poor and it is easy to oil

In addition, the hemp seed water extract is directly spray-dried, and the spray-dried powder is easy to stick to the wall, resulting in a large loss of the spray-dried powder and a low yield of the spray-dried powder, so that the whole extraction process has a low paste rate.

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