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Process for extracting anthocyanin from pachyrhizua angulatus

An anthocyanin and bean curd technology, which is applied in the directions of food extraction, function of food ingredients, food science, etc., can solve the problems of long preparation period, impurities in finished products, low yield, etc., and achieves short preparation period, mild process conditions and purity. high effect

Pending Publication Date: 2022-03-22
JIANGXI DANXIA BIOTECHNOLOGY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The existing process for extracting anthocyanins from butterfly pea flowers has problems such as the use of a

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Shown in Table 1, in order to determine the impact of deionized water in the extraction process, the following experimental analysis was carried out: 500kg of butterfly pea flowers were weighed, and 5 times, 10 times, 15 times, and 20 times the weight of butterfly pea flowers were used respectively. , 25 times, 30 times, 35 times, 40 times and 45 times of deionized water, extract the raw materials for 3 hours in the continuous countercurrent extraction equipment to obtain the leachate; filter the leachate plate and frame, filter and separate The solid impurities therein are obtained as filtrate one; in filtrate one, add 0.2% flocculant solution of butterfly pea flower weight, after stirring for 3 hours, obtain filtrate two after filtering; use macroporous adsorption resin AB- 8 to enrich and remove impurities, then wash with deionized water with 2 times the volume of the resin, and then analyze with 60% ethanol with 3 times the volume of the resin; place the analysis sol...

Embodiment 2

[0032] In conjunction with shown in Table 2, in order to determine the impact of the extraction time in the extraction process, the following experimental analysis has been carried out: taking 500kg of butterfly pea flowers, using deionized water 25 times the weight of butterfly pea flowers, respectively in continuous countercurrent extraction The raw materials are leached in the equipment for 2, 3, 4, 5, 6, 7 and 8 hours to obtain the extract solution; after filtering the extract solution plate and frame, the solid impurities are separated by filtration to obtain the filtrate one; Add 0.2% flocculant solution of butterfly pea flower weight to filtrate one, after stirring for 3 hours, obtain filtrate two after filtering; use macroporous adsorption resin AB-8 to carry out enrichment and removal of impurities in filtrate two, and then use 2 times resin volume of deionized water for washing, and then analyze with 3 times the resin volume of 60% ethanol; place the analysis solution...

Embodiment 3

[0038] In conjunction with Table 3, in order to determine the influence of the concentration of flocculant solution in the flocculation and sedimentation process, the following experimental analysis was carried out: Weighing 500 kg of butterfly pea flowers, using deionized water 25 times the weight of butterfly pea flowers, respectively in continuous countercurrent In the extraction equipment, the raw materials were leached for 6 hours to obtain the extract; after filtering the extract by plate and frame, the solid impurities were separated by filtration to obtain the filtrate one; 0.2%, 0.3%, 0.4%, 0.5% and 0.6% flocculant solution, stirred for 3 hours, and filtered to obtain filtrate 2; the filtrate 2 was enriched and removed with macroporous adsorption resin AB-8, and then used 2 Wash with deionized water twice the volume of the resin, and then analyze with 3 times the volume of the resin with 60% ethanol; place the analysis solution in a low-temperature concentration device...

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PUM

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Abstract

The invention provides a process for extracting anthocyanidin from butterfly bean flower, the raw material butterfly bean flower is subjected to extraction, flocculent precipitation, column chromatography, concentration, impurity removal, separation and purification, sterilization, drying and other steps to obtain the anthocyanidin finished product, continuous countercurrent extraction equipment is used for extraction, the process conditions are mild, the preparation period is short, the equipment investment is low, the cost is low, and the method is suitable for industrial production. And deionized water is used in the whole preparation process, so that the method is simple and convenient, is suitable for continuous and large-scale industrial production, and is high in extraction yield and high in purity.

Description

technical field [0001] The invention relates to the technical field of natural pigment preparation, in particular to a process for extracting anthocyanins from pea flower. Background technique [0002] Butterfly pea flower, also known as blue butterfly, belongs to leguminous plants. Its leaves, flowers and buds are edible. The extracts of leaves and flowers can be used as natural pigments. The seeds and roots can treat chronic bronchitis, relieve pain and diuresis and treat eye diseases. effect. In addition to being edible, it also has many pharmacological activities, such as nootropic, anxiolytic, antidepressant, anticonvulsant, antispasmodic. [0003] Butterfly pea flower is used in natural dyes, which is environmentally friendly, has low toxicity and low allergies. Butterfly pea flower contains a lot of anthocyanins, and the bright blue color it bubbles out mainly comes from the anthocyanins in it, which is 10 times higher than that of ordinary plants. It is a kind of w...

Claims

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Application Information

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IPC IPC(8): A23L5/43A23L33/105
CPCA23L5/43A23L33/105A23V2002/00A23V2200/04A23V2200/30A23V2250/2104A23V2300/14
Inventor 熊勇罗忠国丁小强张军兵李盛艳陈军峰吴子荣邱云
Owner JIANGXI DANXIA BIOTECHNOLOGY CO LTD