Method for extracting peel pigment from green plums

An extraction method and peel technology, which is applied in the field of extraction of greengage peel pigment, can solve the problems of low extraction rate of greengage peel pigment, dark color of greengage peel pigment, unfavorable promotion and application, etc., to improve water migration conditions, protect color, shorten Effect of drying time

Active Publication Date: 2016-10-26
HUIZHOU TONGFUKANG BIOTECHNOLOGY LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But the stability of acetol is relatively poor, causes green plum peel pigment extraction rate to be low, and the green plum peel pigment color and luster that this extraction method prepares is darker, and coloring ability is lower, and stability is not good, is unfavorable for large-scale popularization and application

Method used

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  • Method for extracting peel pigment from green plums
  • Method for extracting peel pigment from green plums
  • Method for extracting peel pigment from green plums

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Embodiment 1, the preparation of green plum peel pigment

[0029] S1 Dry the clean greengage peel with microwave for 8 minutes, the microwave drying power is 420W, pulverize, pass through 100 mesh, and obtain fine powder;

[0030] S2 Add the fine powder obtained in step S1 into an organic solvent with a mass concentration of 65%. The organic solvent is composed of acetol and dodecyl glucoside in a volume ratio of 4:2, and the solid-liquid ratio is 1g:16ml. Ultrasonic Extract twice, the extraction temperature is 45°C, the extraction time is 2h, filter, and combine the filtrates to obtain the extract;

[0031] S3 Centrifuge the extract obtained in step S2 for 15 min at a rotational speed of 5000 r / min, take the supernatant, and filter it with a mixed cellulose ester membrane with a pore size of 0.45 μm to obtain a filtrate;

[0032] S4 freeze-concentrates the filtrate obtained in step S3, the freeze-concentration adopts suspension type freeze-concentration, and the condi...

Embodiment 2

[0033] Embodiment 2, the preparation of green plum peel pigment

[0034] S1 Dry the clean greengage peel by microwave for 10 minutes, the microwave drying power is 435W, pulverize, pass through 120 mesh, and obtain fine powder;

[0035] S2 Add the fine powder obtained in step S1 into an organic solvent with a mass concentration of 72%. The organic solvent is composed of acetol and dodecyl glucoside in a volume ratio of 5:1.5, and the solid-liquid ratio is 1g:18ml. Ultrasonic Extract twice, the extraction temperature is 50°C, the extraction time is 2h, filter, and combine the filtrates to obtain the extract;

[0036] S3 Centrifuge the extract obtained in step S2 for 12 minutes at a speed of 6000 r / min, take the supernatant, and filter it with a mixed cellulose ester membrane with a pore size of 0.50 μm to obtain a filtrate;

[0037] S4 freeze-concentrates the filtrate obtained in step S3, the freeze-concentration adopts suspension type freeze-concentration, and the conditions ...

Embodiment 3

[0038] Embodiment 3, the preparation of green plum peel pigment

[0039] S1 Dry the clean greengage peel by microwave for 12 minutes, the microwave drying power is 450W, pulverize, pass through 140 mesh, and obtain fine powder;

[0040]S2 Add the fine powder obtained in step S1 into an organic solvent with a mass concentration of 75%. The organic solvent is composed of acetol and dodecyl glucoside in a volume ratio of 6:1, and the solid-liquid ratio is 1g:20ml. Ultrasonic Extract twice, the extraction temperature is 55°C, the extraction time is 3h, filter, and combine the filtrates to obtain the extract;

[0041] S3 Centrifuge the extract obtained in step S2 for 10 min at a rotational speed of 8000 r / min, take the supernatant, and filter it with a mixed cellulose ester membrane with a pore size of 0.55 μm to obtain a filtrate;

[0042] S4 freeze-concentrates the filtrate obtained in step S3, the freeze-concentration adopts suspension type freeze-concentration, the conditions ...

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Abstract

The invention belongs to the field of pigment extraction, and particularly relates to a method for extracting peel pigment from green plums. The method for extracting the peel pigment from the green plums includes drying the green plums by the aid of microwave and smashing the green plums; adding organic solvents into the green plums and extracting the green plums; centrifuging extract; filtering the extract; carrying out freeze concentration on the extract to obtain the peel pigment. The method for extracting the peel pigment from the green plums has the advantages that colors of the peel pigment from the green plums can be effectively protected, the stability and the safety of the peel pigment from the green plums can be improved, and the method is a perfect technology for extracting the peel pigment from the green plums; the method for extracting the peel pigment from the green plums is easy to implement, high in extraction rate and low in energy consumption and can be advantageously popularized and applied on a large scale.

Description

technical field [0001] The invention belongs to the field of pigment extraction, in particular to a method for extracting green plum peel pigment. Background technique [0002] With the increasing economic level, people pay more attention to health while pursuing food. Because the synthetic pigments in food have teratogenic and carcinogenic potential hazards, while natural pigments are directly extracted from animals and microorganisms in nature, which have high safety, mild color and anti-oxidation effects. Therefore, natural pigments are widely used in the fields of food, cosmetics and pharmaceuticals, and at the same time, the extraction methods of natural pigments have also attracted more and more attention. [0003] Chinese patent CN101601465B discloses a method for extracting a walnut exocarp pigment. The extraction method of the walnut exocarp pigment is to use the walnut exocarp as a raw material to obtain a brown pigment crude extract by extracting with ethanol aqu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09B61/00C09B67/54
CPCC09B61/00C09B67/0096
Inventor 钱书元邹伟权缪来耿
Owner HUIZHOU TONGFUKANG BIOTECHNOLOGY LTD
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