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A kind of preparation method of pectin

A technology for pectin and peel, which is applied in the field of preparing high-quality pectin, can solve the problems of pectin structure and color change, high concentration temperature, ethanol consumption, etc., and achieves the advantages of short heating time, improved pectin quality and increased yield Effect

Active Publication Date: 2018-11-20
LIANYUAN KANGLU BIOLOGICAL TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The traditional concentration is concentrated under reduced pressure. The concentration temperature is high and the time is long, which will lead to changes in the structure and color of pectin. After concentration, a large amount of ethanol is used for alcohol precipitation, and the ethanol loss is serious.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Crush 1kg of pomelo peel into 40 meshes, use microwave power of 500w to inactivate enzymes, and inactivate enzymes for 10 minutes. Use a high-speed homogenizer to homogenize the raw materials for inactivating enzymes. The speed of the homogenizer is 1000r / min, and the homogenization solvent is 0.3wt%. The hydrochloric acid solution is 5 times of the raw material volume, the homogenization time is 10min, the homogenization temperature is 30°C, the pressure of the high-pressure atomizer is 1MPa, the extraction solvent 0.3% hydrochloric acid solution is 2 times the raw material volume, and the extraction solvent temperature is 30°C, the molecular weight cut-off of the dialysis bag is 3500Da, the dialysis temperature is 20°C, the dialysis time is 5h, the freeze concentration is 1 times the volume of the raw material, and the spray drying conditions are feed liquid temperature 30°C, inlet air temperature 120°C, exhaust air temperature at 100° C. to obtain 250 g of white pecti...

Embodiment 2

[0030] Grind 1 kg of lemon peel into 100 meshes, use microwave power of 800w to inactivate enzymes, and inactivate enzymes for 20 minutes. Use a high-speed homogenizer to homogenize the raw materials for inactivating enzymes. The speed of the homogenizer is 3000r / min, and the homogenization solvent is 0.5wt%. The nitric acid solution is 8 times of the raw material volume, the homogenization time is 20min, the homogenization temperature is 35°C, the pressure of the high-pressure atomizer is 5MPa, the extraction solvent is 5 times the volume of the 0.5wt% nitric acid solution raw material, and the extraction solvent temperature dialysis bag molecular weight cut-off is 5500Da, dialysis temperature is 30 ℃, dialysis time is 24h, freeze concentration is twice the volume of raw material, spray drying conditions are material liquid temperature 40 ℃, air inlet temperature 140 ℃, exhaust air The temperature was 120° C. to obtain 260 g of white pectin powder. The color of pectin is whit...

Embodiment 3

[0032] Crush 1 kg of apple peel into 100 meshes, inactivate the enzyme with a microwave power of 800w, and inactivate the enzyme for 15 minutes. Use a high-speed homogenizer to homogenize the inactivated raw material. The speed of the homogenizer is 4000r / min, and the homogenate solvent is 0.3wt%. The sulfuric acid solution is 8 times of the raw material volume, the homogenization time is 20min, the homogenization temperature is 35°C, the pressure of the high-pressure atomizer is 5MPa, the extraction solvent is 5 times of the raw material volume, and the extraction solvent 0.3wt% sulfuric acid solution temperature 35°C, dialysis bag molecular weight cut-off 3500Da, dialysis temperature 30°C, dialysis time 24h, freeze-concentrated to 1.5 times the volume of raw material, spray drying conditions are feed liquid temperature 40°C, inlet air temperature 140°C, exhaust temperature at 120°C to obtain 210 g of white pectin powder. The color of pectin is white, the content of galacturo...

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PUM

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Abstract

The invention discloses a pectin preparation method. The method comprises the steps that a dried fruit peel raw material is smashed, and then microwave enzyme deactivation is adopted to obtain an enzyme deactivated material; the enzyme deactivated material is homogenized through a high-speed homogenizing machine to obtain homogenized liquid; an extraction solvent is sprayed into the homogenized liquid by adopting a high-pressure atomizer for solvent extraction; the mixed material obtained through solvent extraction is sequentially subjected to filtration and dialysis, and the obtained dialysis trapped liquid is subjected to freeze concentration and spray drying to obtain high-quality pectin. The method is simple and quick to operate and low in cost and facilitates industrialized production.

Description

technical field [0001] The invention relates to a method for preparing high-quality pectin, which belongs to the field of separation and purification of natural medicines. Background technique [0002] Pectin is widely distributed in nature. It is a kind of complex colloidal sugar in plants. It is a natural polymer compound with a molecular weight of about 50,000 to 400,000. Pectin widely exists in the roots, stems, leaves, flowers and fruits of plants, and is a component of cell walls. [0003] Pectin is widely used because it is a natural extract, non-toxic and safe to use. The United Nations Food and Agriculture Organization (FAO), the World Health Organization ((WHO), and the International Food Standards Committee have classified pectin as a food additive. , has thickening, stabilizing and emulsifying effects, and is widely used in the production of jelly, jam, chocolate, etc.; pectin decomposition products have good antiseptic effects, and can inhibit the growth of bac...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08B37/06
CPCC08B37/0048
Inventor 魏有何肖业成
Owner LIANYUAN KANGLU BIOLOGICAL TECH CO LTD
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