CN103374237A - Jujube red pigment extracting method - Google Patents

Abstract

The invention relates to a jujube red pigment extracting method. The invention aims at providing the jujube red pigment extracting method which is in-toxic and harmless, and beneficial to the human body. The jujube red pigment extracting method is characterized by comprising the following steps of: step I, selecting full and complete jujubes for cooking for 5 minutes in boiling water, immediately placing in cold water, removing the fruit pulp, drying jujube skin until the weight is constant at 40 DEG C, and crushing by a plant crusher; step II, placing 2g of powder obtained in the step I into 0.2mol/L of NaOH solution, and placing in a sealed container in a feed liquid ratio of 1:20; step III, placing the sealed container in the step II in warm water with constant temperature of 60 DEG C for carrying out water-bath for three hours; step IV, neutralizing and filtering the liquid in the container; step V, adding absolute ethyl alcohol to clean the filtrate and clarifying the filtrate; and step VI, concentrating, freezing and drying the filtrate to obtain the jujube red pigment product.

Description

The red date haematochrome extracting method

Technical field:

The present invention relates to a kind of red date haematochrome extracting method.

Background technology:

Red date has another name called date.Just be listed in since ancient times one of " five fruits " (peach, Lee, plum, apricot, jujube), with a long history.The most outstanding characteristics of date are that vitamin contents is high.A clinical studies show abroad: eat continuously the patient of date, Health restoration is faster more than 3 times than eating merely the VITAMIN medicament.Therefore, date has just had the good reputation of " natural complex ball ".Red date is temperate crop, strong adaptability.Red date have the title in " iron crops ", has drought-enduring, waterlogging characteristic, is the first-selected breeding of the water-saving industry of planting forest or fruit tress of development.

Medical applications

Benefiting qi and nourishing blood

A slight red date, effect is very strong.In the prescription of the traditional Chinese medical science, usually see its trace, because red date has the function that relaxes the property of medicine; Red date energy benefiting qi and nourishing blood is good nutritious prod.

Be logged in the herbal medicine books " herbal classic " of China, red date sweet warm in nature, the taste warp of distinguishing the flavor of has invigorating the spleen and replenishing QI, and nourishing blood to tranquillize the mind relaxes the function of the property of medicine.Modern pharmacological research is existing, and red date can make oxygen level enhancing in the blood, nourish systemic cell, is the tonic that a kind of drug effect relaxes.

In Chinese materia medica, the application of red date can be divided into following several:

1. invigorating spleen and reinforcing stomach: the people of weakness of the spleen and the stomach, diarrhoea, lassitude, eat seven of red dates every day, or share with Radix Codonopsis, the bighead atractylodes rhizome, can invigorating the spleen and replenishing QI, strengthening the spleen and stomach, reach the effect that increases appetite, antidiarrheal; Red date and ginger, the same usefulness of the tuber of pinellia can be treated the careless caused gastritis of diet such as the symptoms such as gasteremphraxis, vomiting.

2. benefiting qi and nourishing blood: red date is for taking a tonic or nourishing food to build up one's health good merchantable brand, and the normal red date that adds takes nourishing food to build up one's health, moistens qi and blood in the food therapy.The large immunology Sun Andi doctor of platform advocates at ordinary times to eat red date, the Radix Astragali, matrimony vine energetically, can promote the vigour of health, strengthening immunity.

3. nourishing blood to tranquillize the mind: women's manic depressions, cry uneasy, have no peace of mind etc., with red date and Radix Glycyrrhizae, wheat with usefulness＜GANMAI DAZAO TANG, can play the effect of nourishing blood to tranquillize the mind, liver soothing and depression relief.

4. the mitigation property of medicine: red date is often by with in the violent prescription of the what property of medicine, reducing the side effect of strong medicine, and protection healthy tendency.As: in " Shizao Tang ", alleviate the toxicity of the cathartics such as the root of gansui, the root of Beijing euphorbia, overgrown with weeds flower with date, protecting the spleen and stomach preserves from.

Red date is sage's product of benefiting qi and nourishing blood, and is simultaneously inexpensive again, and the common people need not to buy in the streets expensive tonic, the kind effect that can reach health care with red date.

Summary of the invention:

Goal of the invention of the present invention is exactly for the problems referred to above, provides a kind of nontoxic, and the red date haematochrome extracting method useful to the person.

For reaching above-mentioned purpose of the present invention, the present invention adopts following technical scheme, the invention is characterized in:

Step 1 selects full complete red date to boil 5min in boiling water, puts into immediately cold water, removes pulp, and fructus corni is dried to constant weight under 40 ℃ of conditions, pulverizes with the plant pulverizer;

Step 2 is removed the powder 2g that obtains in the step 1, puts into the NaOH solution of 0.2mol/L, is positioned in the sealed vessel take the ratio of solid-liquid ratio as 1: 20;

Step 3 is positioned over the sealed vessel in the step 2 in the warm water of 60 ℃ of constant temperature and carries out water-bath 3h;

Step 4 is with the liquid in container filtration that neutralizes;

Step 5, filtrate added absolute ethanol washing after, clear filtrate;

After the step 6, concentrated, lyophilize filtrate, obtain red date haematochrome goods.

Beneficial effect of the present invention:

Adopt method of the present invention, can be easy to extract the pigment in the red date skin, and the pigment purity of extraction is high, quality is good.

And the present invention need not medicaments, and experimental procedure is also simple; Need not accurate complicated instrument, therefore, be adapted at the red date country of origin and process; Save the great number transport charge, and output is again the deep processed product of red date, rate of profit is high, can improve the vast farmers masses' income.

The red date haematochrome goods that the present invention extracts, proterties is stable, and is nontoxic; Coloring effect to some food is all ideal.

Embodiment

Embodiment:

Step 1 selects full complete red date to boil 5min in boiling water, puts into immediately cold water, removes pulp, and fructus corni is dried to constant weight under 40 ℃ of conditions, pulverizes with the plant pulverizer;

Step 2 is removed the powder 2g that obtains in the step 1, puts into the NaOH solution of 0.2mol/L, is positioned in the sealed vessel take the ratio of solid-liquid ratio as 1: 20;

Step 3 is positioned over the sealed vessel in the step 2 in the warm water of 60 ℃ of constant temperature and carries out water-bath 3h;

Step 4 is with the liquid in container filtration that neutralizes;

Step 5, filtrate added absolute ethanol washing after, clear filtrate;

After the step 6, concentrated, lyophilize filtrate, obtain red date haematochrome goods.

Claims (1)

1. red date haematochrome extracting method is characterized in that:

Step 1 selects full complete red date to boil 5min in boiling water, puts into immediately cold water, removes pulp, and fructus corni is dried to constant weight under 40 ℃ of conditions, pulverizes with the plant pulverizer;

Step 2 is removed the powder 2g that obtains in the step 1, puts into the NaOH solution of 0.2mol/L, is positioned in the sealed vessel take the ratio of solid-liquid ratio as 1: 20;

Step 3 is positioned over the sealed vessel in the step 2 in the warm water of 60 ℃ of constant temperature and carries out water-bath 3h;

Step 4 is with the liquid in container filtration that neutralizes;

Step 5, filtrate added absolute ethanol washing after, clear filtrate;

After the step 6, concentrated, lyophilize filtrate, obtain red date haematochrome goods.