A method for generating red pigment by using mustard knots as raw materials

A mustard pimple and red pigment technology, which is applied in the field of red pigment generation, can solve the problems of industrialization development constraints, lack of deep-processing products, and high labor intensity, so as to improve utilization rate and economic value, broaden the range of raw material selection, and solve problems that cannot be solved. The effect of long-term storage

Active Publication Date: 2022-07-01
HEFEI UNIV OF TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the high water content of mustard pimple roots, long-term storage is prone to deterioration problems such as bran core and rot, and the loss after harvest is serious, with a loss rate as high as 20% to 30%.
At present, mustard lump roots are mainly used for fresh spicy vegetables or processed into flavored side dishes through primary processing methods such as salting or pickling. There is a lack of intensively processed products, and the utilization rate and added value are low. The processing of mustard lump roots mainly adopts traditional methods. Manual production process, high labor intensity, strong seasonality of production, and its industrialization development is severely restricted

Method used

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  • A method for generating red pigment by using mustard knots as raw materials
  • A method for generating red pigment by using mustard knots as raw materials
  • A method for generating red pigment by using mustard knots as raw materials

Examples

Experimental program
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Effect test

Embodiment 1

[0023] (1) Take 1000g of cleaned fresh mustard root tubers and freeze them for more than 24 hours at a low temperature of -20°C to -30°C.

[0024] (2) Completely thaw the frozen mustard nodules under normal temperature conditions.

[0025] (3) Homogenize the completely thawed mustard nodules under the condition of a rotating speed of 8000 r / min, and filter the homogenate to remove slag to obtain mustard nodules juice.

[0026] (4) Stir and heat the mustard tuber root juice at a high temperature of 80°C to 90°C until the juice changes from light yellow to red, and continue to stir and heat for no less than 1 hour.

[0027] (5) The red juice is centrifuged to remove impurities, concentrated and dried to obtain red pigment.

[0028] Through the above process steps, 19.92 g of red pigment can be prepared from 1000 g of mustard nodules, and the yield of red pigment is 1.99%. After structural identification, the main component of red pigment is peony anthocyanin.

Embodiment 2

[0030] (1) Take 1000g of cleaned fresh mustard root tubers and freeze them for more than 24 hours at a low temperature of -20°C to -30°C.

[0031] (2) Completely thaw the frozen mustard nodules under normal temperature conditions.

[0032] (3) Homogenizing the completely thawed mustard tuber roots under the condition of a rotating speed of 10000 r / min, and filtering the homogenate to remove slag to obtain mustard tuber root juice.

[0033] (4) Stir and heat the mustard root tuber juice at a high temperature of 90°C to 100°C until the juice changes from pale yellow to red, and continue to stir and heat for no less than 1 hour.

[0034] (5) The red juice is centrifuged to remove impurities, concentrated and dried to obtain red pigment.

[0035] Through the above process steps, 20.06 g of red pigment can be prepared from 1000 g of mustard nodules, and the yield of red pigment is 2.00%. After structural identification, the main component of red pigment is peony anthocyanin.

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Abstract

The invention relates to a method for generating red pigment by using mustard lumps as raw materials. The method uses white fresh mustard lumps as raw materials for the first time, and freezes at low temperature, thaws at room temperature, homogenizes, filters and removes slag, heats at high temperature, removes impurities by centrifugation, Physical steps such as concentration and drying generate and obtain red pigment. The red pigment has a simple production process, is non-toxic and harmless, and is environmentally friendly. After structural identification, the main component of the red pigment is peony anthocyanin. The invention uses non-red mustard tuber roots as raw materials to process and generate red pigments, which not only provides a new method for obtaining natural red pigments, but also provides a new idea for other natural pigments not limited to extraction strategies from raw materials containing target pigments. The mustard nodules are used as raw materials to generate red pigment, which improves the utilization rate and economic value of mustard nodules, and provides a new development path for the deep processing industry of mustard nodules.

Description

technical field [0001] The invention belongs to the technical field of deep processing of agricultural products, and in particular relates to a method for generating red pigment by using mustard knots as raw materials. [0002] technical background [0003] Mustard knot (Brassica napiformis L.H.Bailey) is an economic crop of Brassica Brassica, which is cultivated in all provinces of my country, with fast growth and high yield. Due to the high water content of the tuberous root of mustard mustard, it is prone to spoilage problems such as bran core and rot when stored for a long time, and the post-harvest loss is serious, and the loss rate is as high as 20% to 30%. At present, mustard root tubers are mainly used for fresh spicy vegetables or processed into flavored side dishes by primary processing methods such as salting or sauce. There is a lack of intensive processing products, and the utilization rate and added value are low. The manual production process has high labor in...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09B61/00C09B67/54
CPCC09B61/00C09B67/0096
Inventor 罗建平单辉杨磊刘健李强明汪璐
Owner HEFEI UNIV OF TECH
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