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Method for extracting pigment of seed-shell of Korean pine

An extraction method and pigment technology, applied in chemical instruments and methods, azo dyes, organic dyes, etc., can solve the problems of low activity and low extraction rate of Korean pine seed shell pigments, etc.

Inactive Publication Date: 2013-04-24
王振宇
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to solve the problem of low extraction rate and low activity of Korean pine seed shell pigment, the invention provides a method for preparing Korean pine seed shell pigment by strong electric field method, which can effectively improve the extraction rate and product activity of Korean pine seed shell pigment

Method used

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specific Embodiment approach 1

[0004] Specific embodiment one: in this specific embodiment, a kind of Korean pine seed shell pigment extraction method is characterized in that the steps of the method for Korean pine seed shell pigment extraction are as follows: one, the extraction of Korean pine seed shell pigment: select fresh and get kernel The final pine nut shells were dried and pulverized, and the pine nut shell powder and the aqueous solution were respectively added in a ratio of 1g: 25mL to 1g: 40mL with a material-liquid ratio, and extracted with a strong electric field for 45 to 50 minutes to obtain an extract containing the Korean pine seed shell pigment. Finally, use a decanter centrifuge to separate the solid and liquid at a speed of 1600 to 1800r / min, separate the extract and residue, and then add 1.5% of the residue to the ratio of 1g: 25mL to 1g: 40mL. Sodium solution, continue to extract by strong electric field and centrifuge, extract continuously for 3 times, remove the residue, combine the...

specific Embodiment approach 2

[0005] Embodiment 2: This embodiment differs from Embodiment 1 in that: in step 1, the extraction electric field strength is 60-80 kV per square centimeter, the high-voltage electric field pulses are 750-800 times, and the pulse frequency is 400-500 Hz. Others are the same as in the first embodiment.

specific Embodiment approach 3

[0006] Embodiment 3: This embodiment is different from Embodiment 1 in that it is characterized in that the solid content in the concentrated solution in step 2 is 50% to 60%. Others are the same as in the first embodiment.

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Abstract

A method for extracting pigment of seed-shell of Korean pine relates to a method for preparing pigment of seed-shell of Korean pine. The method of the invention settles the problems of low extraction rate, low activity and tedious production process in the prior traditional method for extracting pigment of seed-shell of Korean pine. The method for extracting pigment of seed-shell of Korean pine comprises the following processing steps: selecting seed shell of Korean pine, crushing, extracting with highfield, separating raffinate with a super-centrifuge, removing the impurity, condensing with a vacuum scraper type film, freeze-drying with a vacuum freeze-dryer for obtaining the freeze-dried powder of pigment of seed-shell of Korean pine. The pigment of seed-shell of Korean pine prepared according to the invention is a natural extract and has the advantages of abundant raw material of pigment of hazelnut shell, simple extracting technique, high content of pigment, high safety, no toxicity, better stability for acid and alkali, small effect of metal ions of Na+, Mg2+, etc. for the stability of pigment, no effect of food raw materials of sucrose and strong antioxidant activity. The seed-shell of Korean pine contains large number of edible brown-red pigments which are widely used in food industry.

Description

technical field [0001] The invention relates to a preparation method of a Korean pine seed shell pigment. Background technique [0002] At present, the red pine seed shell pigment can be widely used in food, medicine, health care products, and cosmetics as functional food pigments, and its market prospect is very broad. Although there are many studies on seed coat pigments, the extraction methods of seed coat pigments are mainly ultrasonic method and reflux extraction method. A large number of free radicals will be generated in the process of extracting seed coat pigments by ultrasonic method, which will destroy the physiological activity of seed coat pigments. , while the reflux extraction method is a high-temperature extraction technology, which will also cause the inherent color and physiological activity of the seed coat pigment, and the extraction rate of the two methods is relatively low. This invention proposes a strong electric field to extract the seed shell pigmen...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09B61/00A23L1/27A23L5/40
Inventor 王振宇王涛焦岩
Owner 王振宇