Industrial method for producing natural capsicine

Abstract

The present invention relates to an industrial method for producing natural capsaicin, which includes the following procedures that: firstly extraction and separation, in which solvent A is used at first and mixed with the raw material under adequate agitation, then the mixture is extracted with solvent B as the extractant, the extract of solvent A is condensed, and the temperature of the liquid phase is lowered to obtain a thick jelly for later usage; secondly separation and crystallization, the thick jelly is dissolved with a heated lipid through adequate mixing, the mixture is cooled down and allowed for standing for crystallization, and the capsaicin crystal is obtained, thirdly rinsing and drying, the plant oil containing the capsaicin crystal is filtrated to obtain the crystal of capsaicin, which is rinsed with solvent B adequately to eliminate the plant oil, and the obtained crystal undergoes decompressed vaporization to eliminate the solvent to obtain the natural capsaicin crystal, in which the content of total alkali is more than percent. The present invention has much shortened technical process, decreased categories of organic solvent to be used, low fabrication cost and capability of environmental protection.

Description

technical field [0001] The invention relates to an industrialized method for producing natural capsaicin. Background technique [0002] The spicy ingredient in peppers is called capsaicin or capsaicin. Capsaicin crystals of different purity are widely used in military, food, medicine, agriculture and many other fields. At present, the method for preparing capsaicin is mainly divided into: one is the organic solvent extraction method, that is, the raw material is extracted, separated and recrystallized with different solvents, the process time is long, the organic solvent used is many, and the solvent consumption is large and has Toxic, flammable and explosive, have high requirements on industrial equipment, have an impact on the environment, and cause many difficulties to industrial production; the other is to combine supercritical carbon dioxide extraction (or molecular distillation method), that is, to extract raw materials with supercritical carbon dioxide ( Or take the ...

AI Technical Summary

Problems solved by technology

At present, the method for preparing capsaicin is mainly divided into: one is the organic solvent extraction method, that is, the raw material is extracted, separated and recrystallized with different solvents, the process time is long, the organic solvent used is many, and the solvent consumption is large and has Toxic, flammable and explosive, have high requirements on industrial equipment, have an impact on the environment, and cause many difficulties to industrial production; the other is to combine supercritical carbon dioxide extraction (or molecular distillation method), that is, to extract raw materials with supercritical carbon dioxide ( Or take the molecular distillation method), need to use organic solvent to extract, and make capsaicin crystal after purification process again; The shortcoming of this type of method is that extractor volume is limited, and equipment is comparatively expensive, and energy consumption is bigger, causes suitability for industrialized production hinder

Then there is the macroporous adsorption resin method. First, the solvent liquid containing capsaicin is adsorbed with a macroporous adsorption resin, then the resin is washed with a non-polar organic solvent, and finally the capsaicin component in the resin is eluted with a polar solvent, and cooled and crystallized to obtain Capsaicin crystals need to use a lot of organic solvents in the process, and the resin product itself contains a lot of organic residues. In order to ensure safety, it must be pretreated before use, and the acid and alkali solutions used in the pretreatment will cause a certain degree of environmental pollution At the same time, problems such as resin regeneration also restrict the application of this method in production to varying degrees.