A kind of extraction method of waxy corn pectin

An extraction method and technology of waxy corn, applied in the direction of animal feed, animal husbandry, application, etc., can solve the problems of narrow selection of materials, unfavorable promotion and use, etc., and achieve the advantages of short extraction time, improved production efficiency of enterprises, and improved comprehensive utilization value. Effect

Active Publication Date: 2018-04-13
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 of:

[0049] A. Decomposition and extraction of pectin

[0050] Prepare the mixture of waxy corn seed coat and waxy corn flour with water at a weight ratio of 100kg:400kg, prepare the mixture of waxy corn seed coat and waxy corn flour in a weight ratio of 1:1 in the step A, and extract 50ml per minute After adding the hydrochloric acid solution, stir well, check with PH test paper, and adjust the pH value of the extract to 1.5; add sodium hexametaphosphate with a total weight of 0.4% of the extract to the extract, and pour 95~ 98°C steam, continuously heated and stirred for 50 minutes;

[0051] B. Treatment of the extract

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

[0053] C. Hydrolysis of starch

[0054] Add 3 k...

Embodiment 2

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

[0063] A. Decomposition and extraction of pectin

[0064] Prepare the mixture of waxy corn seed coat and waxy corn flour with water at a weight ratio of 100kg:400kg, prepare the mixture with waxy corn seed coat and waxy corn flour in a weight ratio of 2:1 in the step A, and extract 50ml per minute After adding the hydrochloric acid solution, stir well, and adjust the pH value of the extract to 1.5; add sodium hexametaphosphate with a total weight of 0.4% of the extract to the extract, pass steam at 90°C into the extract, and continue heating and stirring React for 60 minutes;

[0065] B. Treatment of the extract

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

[0067] C. Hydrolysis of starch

[0068] Add 2kg of ...

Embodiment 3

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

[0077] A. Decomposition and extraction of pectin

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

[0079] B. Treatment of the extract

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

[0081] C. Hydrolysis of starch

...

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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 stabilization. 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 and jellies, 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 the peels, cores and pomace after juicing of citrus, grapefruit, lemon, guava, apple, pear, and mountain pomace, etc. are good raw materials for extraction. 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...

Claims

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Application Information

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Patent Type & Authority Patents(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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