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Process for abstracting kohlrabi pigment

An extraction method and pigment technology, applied in the field of natural pigment extraction technology, can solve problems such as catalytic oxidation defects, natural pigment heat deformation, etc., achieve the effect of maintaining biological activity, avoiding heat denaturation, and improving the value of agricultural products

Inactive Publication Date: 2008-11-26
王晓明
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The task of the present invention is, aiming at the defect of existing extraction natural pigment, provides a kind of method for extracting the red pigment of the vine that can avoid the heat deformation of the natural pigment in the extraction process and the defect of catalyzing oxidation in the extraction process, the extracted vine pigment also needs Meet food safety requirements

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0017] Step 1: Take fresh Manqing and clean it.

[0018] Step 2: Put the cleansed vine root block in a sealed container, fill the container with edible ethanol, and fill the container to achieve the purpose of replacing the air in the container, and then carry out cutting and crushing.

[0019] Step 3: Vacuum-filter the mixture of crushed mangosteen greens, take the filtrate, and discard the residue.

[0020] The fourth step: filter the filtrate of Mangosteen Greens with a microfiltration membrane, remove small particle solids, and remove a part of macromolecular colloidal substances, and take the filtrate.

[0021] Step 5: Distill the filtered mandarin green filtrate under reduced pressure (reduced pressure to ≤1000Pa, temperature control≤50°C), recover ethanol; distill part of the water in the mixed solution to solid.

[0022] The sixth step: collecting materials (obtaining cranberry red pigment).

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Abstract

The invention discloses an extraction method for baga pigment, which takes fresh baga roots as the raw material and comprises the steps of ethanol immersion, liquid smash, solid-liquid separation, and one step completion of reduced pressure distillation, concentration and drying; wherein, the pressure of the reduced pressure distillation is reduced to less than or equal to 1000Pa and the temperature is controlled less than or equal to 50 DEG C. Ethanol is recycled in the process of reduced pressure distillation and the influence of heating is avoided in the whole process of water evaporation to dryness, thus achieving the purposes of keeping the extracted baga haematochrome beautiful in color and reserving the biological activity of the natural product.

Description

technical field [0001] The invention relates to a natural pigment extraction process, in particular to a method for extracting a mangosteen pigment. technical background [0002] Manqing (Brassica campetris L.ssp.ropiera. English name: Turnip) belongs to Brassica campetris L.ssp.ropiera subspecies of Brassicaceae Brassica. It is a traditional umami dish. The vine root is huge, rose red and bright in color. It is a high-quality natural food coloring. [0003] Food coloring is a very important raw material for the food industry. Early pigments were derived from plants, animals and mineral raw materials. They were still used in food in the early 20th century, but manufacturers gradually eliminated them under the drive of economic interests. The production process of chemically synthesized pigment is simple, the price is low, the dyeing performance is very ideal, and the dosage is small, and it will not produce bad flavor to food. But with the increase in the use of synthetic ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09B61/00
Inventor 邓昌沪
Owner 王晓明
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