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Industrial production method of sunflower head low-ester pectin

A low-ester pectin and production method technology, applied in the field of natural plant extraction and refining, can solve the problems of high ash content, incomplete decolorization of pectin, low extraction rate, etc., and achieve good effect, fast decolorization speed, and high extraction rate Effect

Active Publication Date: 2017-03-22
CHENGUANG BIOTECH GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide an industrial production method of sunflower low-ester pectin, which solves the problem of decolorization of pectin by adopting the method of decolorizing with weak alkaline ethanol solution, using tartrate as extractant, and adopting ion exchange resin to remove impurities. Complete, high ash content, low extraction rate, suitable for industrial production

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] (1) Raw material pretreatment: Dry the sunflower pan at 65°C for 24 hours, crush it, and pass it through a 20-mesh sieve;

[0025] (2) Enzyme inactivation and decolorization treatment: Take 300kg of sunflower pan powder in step (1), add 80% ethanol solution at a solid-liquid ratio of 1:5, Na 2 CO 3 Adjust the pH value of the solution to 7.5, stir at 18°C ​​for 5 minutes, centrifuge on a horizontal screw at a speed of 3000 r / min, wash with water until the filtrate is colorless, and obtain a filter residue;

[0026] (3) Extraction: add 0.45% sodium potassium tartrate to the filter residue in step (2) at a solid-to-liquid ratio of 1:30, adjust the pH of the solution to 3.0 with HCl, extract at 55°C for 90 minutes, filter the plate and frame, and control the plate and frame outlet The liquid temperature is 55°C, and the pectin extract is obtained, and the extraction rate is 98.5% (the extraction rate is calculated by the content of galacturonic acid);

[0027] (4) Impurit...

Embodiment 2

[0030] (1) Raw material pretreatment: Dry the sunflower tray at 64°C for 24 hours, crush it, and pass it through a 60-mesh sieve;

[0031] (2) Enzyme inactivation and decolorization treatment: 400kg of oriented sunflower powder, add 75% ethanol solution at a solid-liquid ratio of 1:10, Na 2 CO 3 Adjust the pH value of the solution to 8.0, stir at 20°C for 3 minutes, centrifuge on a horizontal screw at a speed of 4000 r / min, wash with water until the filtrate is colorless, and obtain a filter residue;

[0032] (3) Extraction: add 0.6% potassium tartrate to the filter residue in step (2) at a solid-to-liquid ratio of 1:20, adjust the pH of the solution to 2.0 with HCl, extract at 80°C for 45 minutes, filter with plate and frame, and control the liquid at the outlet of the plate and frame The temperature is 52°C, and the pectin extract is obtained, and the extraction rate is 96% (the extraction rate is calculated by the content of galacturonic acid);

[0033] (4) Impurity remov...

Embodiment 3

[0036] (1) Raw material pretreatment: Dry the sunflower tray at 66°C for 24 hours, crush it, and pass it through a 100-mesh sieve;

[0037] (2) Enzyme inactivation and decolorization treatment: 500kg of oriented sunflower pan powder, add 70% ethanol solution at a solid-liquid ratio of 1:15, Na 2 CO 3 Adjust the pH value of the solution to 7.0, stir at 25°C for 10 minutes, centrifuge on a horizontal screw at a speed of 5000 r / min, wash with water until the filtrate is colorless, and obtain a filter residue;

[0038] (3) Extraction: add 0.8% sodium tartrate to the filter residue in step (2) at a solid-to-liquid ratio of 1:10, adjust the pH of the solution to 4.0 with HCl, extract at 65°C for 60 minutes, filter the plate and frame, and control the liquid at the outlet of the plate and frame The temperature is 58°C, and the pectin extract is obtained, and the extraction rate is 97.8% (the extraction rate is calculated by the content of galacturonic acid);

[0039] (4) Impurity r...

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Abstract

The invention discloses a pectin extraction method and, particularly, relates to an industrial production method of sunflower head low-ester pectin; the production method comprises the specific steps of blowing air in a sunflower head oven for drying, crushing, and screening; adding the screened sunflower head powder into weakly basic ethanol solution, adjusting pH, stirring, centrifuging, and washing with water until filtrate is colorless; adding tartrate into filter residue, adjusting solution pH with HCl, extracting, and filtering with a plate frame; diluting extract, and applying to serial ion exchange resin columns; collecting bottom injection, and spray-drying to obtain finished pectin. The pectin obtained herein is high in whiteness and purity, has high extraction rate and is suitable for large-scale production.

Description

technical field [0001] The invention belongs to the technical field of natural plant extraction and refining, and in particular relates to an industrial production method of sunflower disc low-ester pectin. Background technique [0002] Pectin is mainly used in jams, jellies, fudge, frozen desserts, ice cream, yogurt pulp bases, bakery products, etc. It is a good food stabilizer, gelling agent or thickener. With the change of modern consumption concepts, low-sugar and low-calorie foods are becoming more and more popular. Natural low-ester pectin is catering to this trend, and its output will be greatly improved. [0003] The raw materials for pectin processing are mostly citrus peels and apple peels. There are very few low-ester pectins in the naturally extracted pectin, but the sunflower dish is rich in low-ester pectin. The sunflower planting area in my country is huge, but most of the sunflower dish resources are used. As feed, fuel or disposal, the comprehensive developm...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08B37/06
CPCC08B37/0003C08B37/0045
Inventor 徐建中李亚梅杨文江贾新超连运河
Owner CHENGUANG BIOTECH GRP CO LTD
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