Method for extracting pectin from glutinous corn

An extraction method, waxy corn technology, applied in animal feed, animal husbandry, application, etc., can solve the problems of narrow material selection range, unfavorable promotion and use, etc., achieve the effect of short extraction time, improve enterprise production efficiency, and high acidity

Active Publication Date: 2016-09-07
PINGLIANG JIAHE AGRI PROD PROCESSING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Most of the materials selected by the existing extraction technology are fruits, and the selection range is narrow, which is not conducive to popularization and use
Corn is planted in a large area in my country, and the variety of waxy corn has strong cohesiveness, mainly because the grains of waxy corn contain high pectin, but there are few technical reports on extracting pectin from waxy corn in the prior art

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0048] A method for extracting waxy corn pectin, comprising the steps:

[0049] A. Decomposition and extraction of pectin

[0050] The mixture of waxy corn seed coat and waxy corn flour and water are prepared in a weight ratio of 100kg:400kg, and the waxy corn seed coat and waxy corn flour are prepared in a weight ratio of 1:1 in the step A. The mixture is 50ml per minute in the extract. After adding the hydrochloric acid solution, stir well, use PH test paper to check, and adjust the pH value of the extract to 1.5; add 0.4% sodium hexametaphosphate of the total weight of the extract to the extract, and pass 95~ 98℃ steam, heating and stirring continuously for 50 minutes;

[0051] B. Treatment of the extract

[0052] After the extraction solution of step A is filtered and separated, the mesh of the filter screen is 120 meshes, the residue is filtered out and used as livestock feed, and the filtrate is cooled to 50° C. to obtain pectin solution;

[0053] C, the hydrolysis of...

Embodiment 2

[0062] A method for extracting waxy corn pectin, comprising the steps:

[0063] A. Decomposition and extraction of pectin

[0064] The mixture of waxy corn seed coat and waxy corn flour and water are prepared in a weight ratio of 100kg:400kg, and in the step A, the waxy corn seed coat and waxy corn flour are prepared in a mixture by weight of 2:1, and 50ml per minute in the leaching solution After adding the hydrochloric acid solution, stir well, and adjust the pH value of the leachate to 1.5; add 0.4% sodium hexametaphosphate by the total weight of the leachate to the leachate, pass 90 ℃ steam into the leachate, and keep heating and stirring reaction for 60 minutes;

[0065] B. Treatment of the extract

[0066] After the extraction solution of step A is filtered and separated, the mesh of the filter screen is 120 meshes, the residue is filtered out and used as livestock feed, and the filtrate is cooled to 50° C. to obtain pectin solution;

[0067] C, the hydrolysis of star...

Embodiment 3

[0076] A method for extracting waxy corn pectin, comprising the steps:

[0077] A. Decomposition and extraction of pectin

[0078] The mixture of waxy corn seed coat and waxy corn flour and water are prepared in a weight ratio of 100kg:400kg, and the waxy corn seed coat and waxy corn flour are prepared in a weight ratio of 1:1 in the step A. The mixture is 50ml per minute in the extract. After adding the hydrochloric acid solution, stir well, use pH test paper to check, and adjust the pH value of the extract to 2.0; add 0.3% sodium hexametaphosphate by the total weight of the extract to the extract, and pour 100 ° C into the extract Steam, heated and stirred continuously for 45 minutes;

[0079] B. Treatment of the extract

[0080] After the extraction solution of step A is filtered and separated, the mesh of the filter screen is 120 meshes, the residue is filtered out and used as livestock feed, and the filtrate is cooled to 50° C. to obtain pectin solution;

[0081] C, th...

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Abstract

The invention relates to the technical field of pectin extraction, in particular to a method for extracting pectin from glutinous corn. The method comprises the following links, such as decomposition and extraction of the pectin, treatment of extract liquid, hydrolysis of starch, decoloring of the pectin, concentration of pectin liquid and preparation of pectin powder. The extract liquid is kept in a relatively strong acidic environment, such that the interference of impurities in glutinous corn bran to the pectin extraction can be effectively reduced. The PH is regulated to be less than 2.0 as much as possible; when the acidity is high, the extraction time is short; when the acidity is low, the extraction time is long. In order to reduce the sealing of calcium and magnesium ions in the glutinous corn bran to the pectin, sodium hexametaphosphate which accounts for 0.3 to 0.4 percent of the total weight of the extract liquid is added, such that a pectin extraction rate can be increased to 30 percent or more, and the gelatinization degree reaches 180.

Description

technical field [0001] The invention relates to the technical field of pectin extraction, in particular to a method for extracting waxy corn pectin. Background technique [0002] Pectin is a natural polymer compound with good gelation and emulsification stability. Pectin has been widely used in food, medicine, daily chemical and textile industries, especially in the food industry, in addition to being used as a thickener for jams, jelly, etc., it is also an excellent stabilizer for ice cream. Pectin is also widely used in pharmaceutical, textile and other industries. There are many raw materials for extracting pectin, such as citrus, grapefruit, lemon, guava, apple, pear, mountain dregs and other peels, fruit cores and fruit pomace after juicing are good extraction raw materials. Most of the materials selected by the existing extraction technology are fruits, and the selection range is narrow, which is not conducive to popularization and use. In my country, corn is grown ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08B37/06A23K10/37
CPCC08B37/0003C08B37/0045Y02P60/87
Inventor 周广业周稼轩李利利
Owner PINGLIANG JIAHE AGRI PROD PROCESSING
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