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Method for extracting pectin from cucurbita pepo

A technology of zucchini and pectin, which is applied in the field of extracting pectin from zucchini, can solve the problems of low extraction rate, high extraction process cost, and many impurities, and achieve the effect of simple process, natural color and high purity

Inactive Publication Date: 2013-08-28
ANHUI JINFENG PECTIN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There are various raw materials and methods for extracting pectin. The existing pectin extraction process has high cost, low extraction rate and many impurities.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0011] A method for extracting pectin from zucchini, using zucchini as a raw material, the specific steps comprising:

[0012] (1) Wash and chop the fresh zucchini, add 3 times the amount of 70% ethanol solution and 3% activated carbon, refine the pulp, heat to 80-95°C, keep warm for 60 minutes, filter until the filtrate and filter residue ;

[0013] (2) Add acetic acid to the filtrate to adjust the pH value to 1.6-2, then heat up to 85-90°C, and cook for 1 hour;

[0014] (3) Add attapulgite equivalent to 4% of its weight to the filter residue, mix well, inoculate lactic acid bacteria, ferment for 4 days, add water to make a slurry, heat to 80-95°C, add citric acid to adjust the pH value to 1.6- 2. Filter and remove slag to obtain slurry;

[0015] (4) Combine the filtrate and the slurry, pump it into the ultrafiltration membrane for refining, and collect the outflowing refined liquid; use the spray drying method to extract pectin from the refined liquid, and the air inlet te...

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PUM

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Abstract

The invention discloses a method for extracting pectin from cucurbita pepo which is used as raw materials. The method is characterized in that the method comprises the following specific steps of: washing and chopping fresh cucurbita pepo; adding 3 to 4 times 50 to 70% ethanol solution and 3 to 5% activated carbon; grinding into thick liquid; heating to 80 to 95 DEG C; keeping the temperature for 40 to 60 minutes; and then filtering to obtain the thick liquid and filter residues. The extraction method provided by the invention has the advantages of simple process and low production cost, the extracted pectin has the advantages of high purity and natural color and is mainly used as a food additive for candies, cans, jellies and the like.

Description

technical field [0001] The invention relates to a method for extracting natural pectin, in particular to a method for extracting pectin from zucchini. Background technique [0002] Pectin is an acidic polysaccharide in plants and a natural polymer. Pectin exists in large quantities in the tubers, fruits and stems of plants. There are various raw materials and methods for extracting pectin. The existing pectin extraction process has high cost, low extraction rate and many impurities. Contents of the invention [0003] The invention discloses a method for extracting pectin from zucchini, which has high extraction rate and less impurities. [0004] The technical scheme adopted in the present invention: [0005] A method for extracting pectin from zucchini, using zucchini as a raw material, is characterized in that: the specific steps include: [0006] (1) Wash and chop fresh zucchini, add 3-4 times the amount of 50-70% ethanol solution, 3-5% activated carbon, refine, heat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08B37/06
Inventor 黄丹枫常晓明钟山张艳秋杜金伟徐俊峰
Owner ANHUI JINFENG PECTIN
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