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Method for extracting cyanidin from banana peel

A technology of anthocyanins and banana peels, applied to chemical instruments and methods, azo dyes, organic dyes, etc., to achieve the effects of fast drying speed, low energy consumption, and low component loss

Inactive Publication Date: 2013-02-13
杨公明
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to overcome the defects of various existing methods for extracting anthocyanins, and disclose a method for extracting anthocyanins from banana peels

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] a. Prepare the color protection solution according to the following components and parts by weight: 2 parts of sodium bisulfite, 3 parts of sodium chloride, 3 parts of citric acid, and 990 parts of distilled water are fully mixed;

[0021] b. Preparation: Remove the stems from the freshly picked green bananas, remove the banana pulp, and cut the green banana skin into 1cm 2 pieces of green banana peel;

[0022] c. Color protection and beating: immerse the green banana peel block in the color protection solution for 15 minutes, then mix the green banana peel block and the color protection solution in 1:1 parts by weight for beating to form banana peel pulp;

[0023] d. Enzymolysis: Carry out enzymolysis treatment with banana peel pulp, pectinase and cellulase, the proportioning by weight of banana peel pulp, pectinase and cellulase is: 0.8 part of pectinase, 0.8 part of cellulase Parts, 1000 parts of banana peel pulp, enzymolysis time is 3.5h, enzymolysis temperature is...

Embodiment 2

[0031] a. Prepare the color protection solution according to the following components and parts by weight: 3 parts of sodium bisulfite, 2 parts of sodium chloride, 2 parts of citric acid, and 990 parts of distilled water are fully mixed;

[0032] b. Preparation: Remove the stems from the freshly picked green bananas, remove the banana pulp, and cut the green banana skin into 1cm 2 pieces of green banana peel;

[0033] c. Color protection and beating: immerse the green banana peel block in the color protection solution for 15 minutes, then mix the green banana peel block and the color protection solution in 1:1 parts by weight for beating to form banana peel pulp;

[0034] d. Enzymolysis: Carry out enzymolysis treatment with banana peel pulp, pectinase and cellulase, the proportioning by weight of banana peel pulp, pectinase and cellulase is: 0.6 part of pectinase, 0.6 part of cellulase , 1000 parts of banana peel pulp, the enzymolysis time is 3 hours, the enzymolysis temperat...

Embodiment 3

[0042] a. Prepare the color protection solution according to the following components and parts by weight: 4 parts of sodium bisulfite, 4 parts of sodium chloride, 3 parts of citric acid, and 990 parts of distilled water are fully mixed;

[0043] b. Preparation: Remove the stems from the freshly picked green bananas, remove the banana pulp, and cut the green banana skin into 1cm 2 pieces of green banana peel;

[0044] c. Color protection and beating: immerse the green banana peel block in the color protection solution for 10 minutes, mix the green banana peel block and the color protection solution in 1:1 parts by weight, and form a banana peel slurry;

[0045] d. Enzymolysis: carry out enzymolysis treatment with banana peel pulp, pectinase and cellulase, the proportioning by weight of banana peel pulp, pectinase and cellulase is: 0.4 part of pectinase, 0.4 part of cellulase Parts, 900 parts of banana peel pulp, enzymolysis time is 2.5h, enzymolysis temperature is 40 ℃, centr...

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PUM

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Abstract

The invention discloses a method for extracting cyanidin from banana peel. A ultrasonic-assisted microbial fermentation method is utilized to extract cyanidin from green banana peel: a microbial fermentation method is utilized to destroy banana peel cell walls by using Aspergillus niger metabolite, and cavitation generated by ultrasonic is utilized to sufficiently release the cyanidin. Centrifugal slag-liquid separation, membrane filtration separation, chromatography purification, ultrarapid freezing, vacuum drying and the like are carried out to obtain the cyanidin of which the purity exceeds 94%. The ultrarapid freezing has the characteristics of good quality, small ice crystal, high drying rate and the like, and is widely used in food processing. The combination of the ultrarapid freezing and vacuum drying has the advantages of thorough dehydration in freezing state, low component loss, excellent quality and long storage time. The invention is simple to operate, has the advantages of high yield, high efficiency, clean and harmless generation process, small energy consumption, high benefit, high cyanidin yield and high purity, is suitable for large-scale production, and has wide market prospects.

Description

technical field [0001] The invention relates to a method for extracting plant anthocyanins, in particular to a method for extracting anthocyanins by using green banana peel as a raw material by microbial fermentation, and belongs to the field of food coloring processing. Background technique [0002] Banana, lychee, pineapple, and coconut are known as the "four major fruits" in the tropics and subtropics. They are one of the most widely cultivated tropical fruits in the world, and banana resources are abundant and the output is huge. Along with the adjustment of the agricultural industrialization structure, the deep processing industry develops rapidly, the amount of green banana pulp increases greatly, and at the same time, a large amount of discarded green banana peels are produced. Banana peel accounts for about 30% of the weight of banana fruit. It contains phenols, oils, organic acids, condensed tannins, proteins and sugars, as well as nutrients such as vitamins and ino...

Claims

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Application Information

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IPC IPC(8): C07D311/62C09B61/00
Inventor 杨公明白永亮叶琼娟贾宝珠
Owner 杨公明
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