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Hickory nut shell brown pigment and its preparation method

A hickory shell and pigment technology, applied in chemical instruments and methods, bulk chemical production, azo dyes, etc., to achieve the effect of ensuring activity and improving various properties

Inactive Publication Date: 2013-09-25
HEILONGJIANG VOCATIONAL INST OF ECOLOGICAL ENG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] At present, there is no report on the combined use of compound enzyme-ultrasound-supercritical in the extraction of Northeast hickory nut shell pigment

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] Embodiment 1: a kind of extraction method of high performance, high stability hickory nut shell brown pigment is characterized in that it is prepared according to the following steps:

[0047] (1) Remove impurities from hickory nut shells, wash them with water, dry them at 36°C, and crush them into 60-mesh powder for later use;

[0048] (2) Add the powder into the ethanol-citric acid system according to the solid-liquid ratio (w / v) of 1:32, fully soak and moisten, and then add cellulase, hemicellulase, pectinase and fat to the extract Enzyme, the amount of enzyme added is 0.005% of the walnut powder quality, wherein the ratio of cellulase, hemicellulase, pectinase and lipase is 3:2:1:1; wherein, the ethanol-citric acid system is: take lemon Acid is used as solute, and with 50% ethanol aqueous solution as solvent, it is mixed with a concentration of 0.1% citric acid-ethanol solution by mass volume percentage;

[0049] (3) Ultrasonic treatment: the mixture in step (2) wa...

Embodiment

[0056] Embodiment: 2: a kind of extraction method of high performance, high stability hickory nut shell brown pigment is characterized in that it is prepared according to the following steps:

[0057] (1) Remove impurities from hickory nut shells, wash them with water, dry them at 36°C, and crush them into 60-mesh powder for later use;

[0058] (2) Add the powder into the ethanol-citric acid system according to the solid-liquid ratio (w / v) of 1:32, fully soak and moisten, and then add cellulase, hemicellulase, pectinase and fat to the extract Enzyme, the amount of enzyme added is 0.005% of the walnut powder quality, wherein the ratio of cellulase, hemicellulase, pectinase and lipase is 3:2:1:1; wherein, the ethanol-citric acid system is: take lemon Acid is used as solute, and 50% ethanol aqueous solution is used as solvent, and concentration is mixed with 0.1% citric acid-ethanol solution by mass volume percentage;

[0059] (3) Ultrasonic treatment: the mixture in step (2) wa...

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PUM

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Abstract

An extraction method of a high-performance and high-stability Northeast hickory nut shell brown pigment relates to a natural pigment processing technology. According to the invention, compound enzyme-supersonic wave-supercritical are creatively and effectively combined in synergism. Thus, residues require no secondary digestion or extraction but only require extraction once so as to effectively avoid the influence of secondary extraction on pigment activity. With the cooperation of compound enzyme, extraction rate is greatly raised, and the influence of fat on the pigment is avoided. The whole course is carried out at a low and mild temperature, thus guaranteeing the pigment activity and activity stability and achieving an unexpected technical effect. The preparation method provided by the invention has advantages of simple technology, short period and no complex equipment, is easy to operate, is adopted to obviously raise product performance, and is suitable for industrial production.

Description

technical field [0001] The invention provides a brown pigment with good purity, high performance and high stability, relates to natural pigment processing technology and belongs to the technical field of food chemical processing. Background technique [0002] Edible natural pigments refer to food pigments obtained from natural resources, some are extracted from the edible parts of organisms that have been eaten for a long time; some are extracted from the roots, stems, leaves, and fruits of medicinal and edible plants; Extracted from the husk or peel of the fruit. It can be seen from the sources of natural pigments that most natural pigments are highly safe and have almost no adverse effects on the human body, and can be used as healthy food pigments. [0003] Heilongjiang Province is very rich in forest resources, with a forest area of ​​24.276 million hectares, ranking first in the country and accounting for 51.3% of the province's total land area. There are many kinds o...

Claims

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Application Information

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IPC IPC(8): C09B61/00C09B67/54
CPCY02P20/54
Inventor 秦微微金婷李德海徐丹鸿冯晓阳张衡
Owner HEILONGJIANG VOCATIONAL INST OF ECOLOGICAL ENG
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