CN105295427A

CN105295427A - Capsochrome extracting process

Info

Publication number: CN105295427A
Application number: CN201410341251.6A
Authority: CN
Inventors: 周子童
Original assignee: Individual
Current assignee: Individual
Priority date: 2014-07-18
Filing date: 2014-07-18
Publication date: 2016-02-03

Abstract

The invention discloses a capsochrome extracting process. Capsochrome is obtained by using red pepper as a raw material through steps of smashing, extraction, lamination, underpressure distillation and the like. The provided extracting method is simple in process and low in production cost, and the extracted capsochrome is natural pigment, is high in purity and natural in color and luster, and is mainly used for coloration of food, cosmetics and medical products.

Description

A kind of capsochrome extraction process

Technical field

The present invention relates to a kind of extraction process of natural pigment, be specifically related to a kind of extraction process of capsochrome.

Background technology

Food dye is the one of pigment, is to make food change former coloured foodstuff additive to a certain extent.Food dye is divided into natural and synthetic two kinds, natural food colour is the pigment directly extracted from animal vegetable tissue, harmless, synthetic food color, be that raw material is made with the aniline dyestuff separated in coal tar, the pigment of these synthetic is because easily bringing out poisoning, diarrhea even cancer, harmful, therefore can not be multiplex or need not as far as possible.Capsochrome is the one in natural pigment, and the extraction process of existing capsochrome is complicated, and cost is higher.

Summary of the invention

The present invention, in order to solve the deficiencies in the prior art, provides the extraction process of the capsochrome that a kind of technique is simple, cost is low, and the capsochrome purity extracted by this method is high, natural in color, is of high nutritive value.

The technical solution used in the present invention: a kind of extracting method of capsochrome take red pepper as raw material, and the concrete steps that capsochrome extracts comprise:

(1) dry after fresh red pepper being cleaned, after separating placenta and seed, the fruit peel powder of gained is broken into pulpous state, again pulpous state chili peel is placed in container, be incorporated as soup compound volume 2-3 normal hexane doubly, be heated to 55-60 DEG C, be incubated and extract for 1 hour;

(2) stop heating, filter after being cooled to room temperature, filter residue adds normal hexane heating extracting twice by the method for step (1), cooled and filtered, put into distiller after each filtrate being merged, under reduced pressure heat Distillation recovery normal hexane, residual solution is oleo-resinous;

(3) add the sodium hydroxide solution with oleo-resinous equivalent, under constantly stirring, be heated to 70-80 DEG C, insulation 1-1.5 hour;

(4) after liquid to be mixed is down to room temperature, under constantly stirring, drip hydrochloric acid, the stratification when pH value to solution reaches 6-7, after lower floor's aqueous phase is drained, upwards adds isopyknic normal hexane in metafiltration oleo-resinous, continues to stir stratification after 4-5 hour;

(5) to drain lower floor's aqueous phase, upper phase puts into distiller, under reduced pressure heats Distillation recovery normal hexane, residual solution oleo-resinous isopyknic washing with alcohol three times, by underpressure distillation removing organic solvent and moisture, obtain thick liquid and be capsochrome.

As preferably, the concentration of the sodium hydroxide solution described in above-mentioned steps (3) is 30-40%.

As preferably, the concentration of the ethanol described in above-mentioned steps (4) is 75-90%.

Beneficial effect: the present invention compared with prior art, its remarkable advantage is: the extracting method technique of capsochrome provided by the invention is simple, convenient operation, capsochrome Nantural non-toxic, the natural in color of preparation, there is high nutritive value, be mainly used in food, makeup, pharmaceuticals painted.

Embodiment

Embodiment 1

Dry after fresh red pepper is cleaned, after separating placenta and seed, 10 kilograms, the pericarp of gained is ground into pulpous state, then pulpous state chili peel is placed in container, be incorporated as the normal hexane of soup compound volume 2 times, be heated to 55 DEG C, be incubated and extract for 1 hour; Stop heating, filter after being cooled to room temperature, filter residue continues to add normal hexane heating extracting twice, cooled and filtered as stated above, and put into distiller after each filtrate being merged, under reduced pressure heat Distillation recovery normal hexane, residual solution is oleo-resinous; Adding with the concentration of oleo-resinous equivalent is the sodium hydroxide solution of 30%, is heated to 70 DEG C, is incubated 1 hour under constantly stirring; After liquid to be mixed is down to room temperature, under constantly stirring, drip hydrochloric acid, the stratification when pH value to solution reaches 6, after lower floor's aqueous phase is drained, upwards adds isopyknic normal hexane in metafiltration oleo-resinous, continues stirring stratification after 4 hours; To drain lower floor's aqueous phase, upper phase puts into distiller, under reduced pressure heats Distillation recovery normal hexane, and residual solution oleo-resinous is the washing with alcohol three times of 75% by isopyknic concentration, by underpressure distillation removing organic solvent and moisture, obtain thick liquid and be capsochrome.

Embodiment 2

Dry after fresh red pepper is cleaned, after separating placenta and seed, 15 kilograms, the pericarp of gained is ground into pulpous state, then pulpous state chili peel is placed in container, be incorporated as the normal hexane of soup compound volume 3 times, be heated to 60 DEG C, be incubated and extract for 1 hour; Stop heating, filter after being cooled to room temperature, filter residue continues to add normal hexane heating extracting twice, cooled and filtered as stated above, and put into distiller after each filtrate being merged, under reduced pressure heat Distillation recovery normal hexane, residual solution is oleo-resinous; Adding with the concentration of oleo-resinous equivalent is 40% sodium hydroxide solution, is heated to 80 DEG C, is incubated 1.5 hours under constantly stirring; After liquid to be mixed is down to room temperature, under constantly stirring, drip hydrochloric acid, the stratification when pH value to solution reaches 7, after lower floor's aqueous phase is drained, upwards adds isopyknic normal hexane in metafiltration oleo-resinous, continues stirring 45 hours

Rear stratification; To drain lower floor's aqueous phase, upper phase puts into distiller, under reduced pressure heats Distillation recovery normal hexane, and residual solution oleo-resinous is the washing with alcohol three times of 90% by isopyknic concentration, by underpressure distillation removing organic solvent and moisture, obtain thick liquid and be capsochrome.

Claims

1. a capsochrome extraction process, is raw material with red pepper, it is characterized in that: the concrete steps that capsochrome extracts comprise:

2. a kind of capsochrome extraction process according to claim 1, is characterized in that: the concentration of the sodium hydroxide solution described in above-mentioned steps (3) is 30-40%.

3. a kind of capsochrome extraction process according to claim 1, is characterized in that: the concentration of the ethanol described in above-mentioned steps (4) is 75-90%.