Ultrahigh-pressure extraction method of zanthoxylum bungeanum maxim volatile oil

Abstract

The invention discloses an ultrahigh-pressure extraction method of zanthoxylum bungeanum maxim volatile oil. The method comprises the following steps: 1, taking a zanthoxylum bungeanum maxim raw material, crushing into fine powder, screening with an 18-mesh sieve, and drying at 60 DEG C for 4 hours; 2, extracting the zanthoxylum bungeanum maxim by using a solvent under an ultrahigh pressure condition; and 3, separating the solvent from the volatile oil to obtain the volatile oil. According to the method, by selecting and controlling the extraction solvent, the extraction time and the extraction pressure, the crude volatile oil in the zanthoxylum bungeanum maxim can be efficiently obtained, and the method also has the advantages of short extraction time, low energy consumption, avoidance ofthermal damage of active ingredients at low temperature and the like.

Description

Technical field: [0001] The invention belongs to the field of natural product extraction, and relates to an ultrahigh-pressure extraction method for volatile oil of prickly ash. Background technique: [0002] Zanthoxylum bungeanum, also known as Zanthoxylum bungeanum, Dajiao, Qinjiao, Shujiao. Zanthoxylum bungeanum is used as a traditional Chinese medicine, which has the effects of warming the middle and promoting qi, expelling cold, relieving pain, and killing insects. Control stomach and abdomen cold pain, vomiting, diarrhea, schistosomiasis, roundworm embolism. It is also used as an epidermal anesthetic. [0003] Volatile oil, also known as essential oil, is a kind of volatile oily component that is immiscible with water and can be obtained by steam distillation in plants, and often has a specific aromatic smell. In traditional Chinese medicine, many medicinal materials contain volatile oil components, which usually have strong pharmacological activity. Zanthoxylum bu...

AI Technical Summary

Problems solved by technology

[0004] At present, the extraction methods of volatile oil mainly include steam distillation, oil absorption, solvent extraction, supercritical fluid extraction and cold pressing, etc., and the most commonly used method is steam distillation, but this method is in further separation. During refining, the traditional redistillation method is prone to oxidative deterioration and low yield due to the long heating times and time

The yield of volatile oil in supercritical CO2 extraction is high, but the investment cost in industrial production scale-up is high