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Extraction process of high-purity stable red pepper pigment

A technology of red pepper pigment and extraction process, which is applied in the field of extraction technology of high-purity and stable red pepper pigment, can solve the problems of poor stability of finished pigment products, low yield of finished pigment products, poor product solubility, etc., and is conducive to popularization and application , high color rate and high utilization rate of raw materials

Inactive Publication Date: 2015-06-03
QINGDAO XINRUNTU NURSERY STOCK SPECIALIZED COOP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The main deficiencies in the conventional preparation method of red pepper pigment are: low yield of pigment finished product, high production cost; poor stability of pigment finished product, easy to decompose and decay under light and heat; for six months

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] Red peppers with red color and luster are used as raw materials, cleaned, soaked in salt water with a concentration of 4% by weight for 1.5 hours, and taken out; put the soaked red peppers into an oven, run for 4 minutes at 55°C, and put them in In the cutting machine, cut into broken leaves, put them into a press and squeeze them; dissolve chitosan in 2% acetic acid solution at a concentration of 1%, and add 10% of the volume of the extract in the precipitation tank. Stir for 1.5 h, stand still for 3 hours; the red pepper pigment solution is primary filtered with a plate and frame filter to remove impurities, and the operating pressure difference on both sides of the ultrafiltration membrane is controlled to be 0.6Mpa, and the filtrate is subjected to ultrasonic countercurrent extraction for 35min, and the filtrate is filtered after extraction; Add 6kg of temperature in the filtrate to 40°C and 50% ethanol aqueous solution, extract the pumpkin for 3 hours, and dissolve ...

Embodiment 2

[0019] Red peppers with ruddy color are used as raw materials, cleaned, soaked in salt water with a concentration of 6% by weight for 2 hours, and taken out; put the soaked red peppers into an oven, run for 5 minutes in the range of 60°C, and put them into cutting In the machine, cut into broken leaves, put them into a press and press; dissolve chitosan in 3% acetic acid solution at a concentration of 1%, add 10% of the volume of the extract in the precipitation tank, stir for 2 hours, Stand still for 4 hours; the red pepper pigment solution is primary filtered with a plate and frame filter to remove impurities, and the operating pressure difference on both sides of the ultrafiltration membrane is controlled to be 0.8Mpa. Add 8kg of ethanol solution with a temperature of 50°C and a content of 60%, extract the pumpkin for 4 hours, and dissolve the red pepper pigment in the ethanol solution; concentrate under reduced pressure to 45% to obtain a high-concentration red pepper pigme...

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PUM

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Abstract

An extraction process of a high-purity stable red pepper pigment is disclosed. The process is characterized by comprising following steps: a) a step of pretreating raw materials, b) a step of drying and squeezing, c) a step of flocculating and clarifying, d) a step of filtering, e) a step of extracting the filtrate and f) a step of preparing the pigment the color value of which is 40. The process adopts chitosan as a flocculating and clarifying agent, so that the product yield is relatively increased and the production cost is reduced. Polyethylene glycol which is highly safe is adopted as an auxiliary solvent, thus overcoming the problem of poor solubility of the natural red pepper pigment. The raw material utilization rate of the process is high. The prepared red pepper pigment is high in color index, good in characters, purity, stability and solubility, high in comprehensive performance cost ratio, and beneficial to popularization and application of the natural red pepper pigment in the field of foods.

Description

technical field [0001] The invention belongs to the field of food pigment extraction, and in particular relates to an extraction process of high-purity and stable paprika pigment. Background technique [0002] Pigment can also be called color scale, which is an index standard indicating the brightness of the display screen, which is what we call the color index. The color fullness and fineness of the display is determined by the color scale. The industry standards are 256 colors, 4096 colors, and 65536 colors. Many natural foods have their own color. These colors can promote people's appetite and increase the secretion of digestive juice, which is conducive to digestion and absorption, and is an important sensory indicator of food. However, natural food is easy to fade or change color during processing and preservation. In order to improve the color of food, people often add food coloring in the process of processing food to improve sensory properties. [0003] Now common...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09B61/00C09B67/10
CPCC09B61/00C09B67/0014
Inventor 刘泽华
Owner QINGDAO XINRUNTU NURSERY STOCK SPECIALIZED COOP
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