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Method for extraction of carrot pigment from carrots

A technology of carrot pigment and carrot, applied in chemical instruments and methods, azo dyes, organic dyes, etc., can solve problems such as high energy consumption, lower color scale, and unsatisfactory effects

Inactive Publication Date: 2014-03-19
威海市桢昊生物技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to overcome the disadvantages of high energy consumption, unsatisfactory effect and reduced color scale in the process of removing peculiar smell from pigment extract liquid in the prior art, the present invention provides a carrot with simple process, short preparation cycle, low energy consumption and good effect of removing peculiar smell. Method for extracting carrot pigment from

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] A method for extracting carotene from carrots, through the following process steps:

[0018] a. Raw material selection and processing: choose dark red carrots with tight texture and high pigment content as raw materials, and shred them after cleaning to obtain shredded carrots for subsequent use;

[0019] B, alcohol extraction Take 100kg of shredded carrot that step (a) obtains and place in extraction tank, add the ethanol solution that concentration is 55% as extraction agent, the addition is 1.2 times of shredded carrot quality, with 0.5mol / L hydrochloric acid to adjust the pH value to 4.8, control the temperature to 63°C, extract for 1.5 hours, and collect the pigment extract; continue to extract twice according to the above-mentioned process method; combine the pigment extract for three times;

[0020] c. Filtration The pigment extraction solution obtained in step (b) is filtered with a plate and frame filter press to remove impurities and obtain a pigment filtrate;...

Embodiment 2

[0027] A method for extracting carotene from carrots, through the following process steps:

[0028] a. Raw material selection and processing: choose dark red carrots with tight texture and high pigment content as raw materials, and shred them after cleaning to obtain shredded carrots for subsequent use;

[0029]b. Alcohol extraction Weigh 200 kg of carrot shreds obtained in step (a) and place in an extraction tank, add a concentration of 60% ethanol solution as an extraction agent, and the addition amount is 1 time of the carrot shreds quality, with 0.5mol / L hydrochloric acid to adjust the pH value to 4.5, control the temperature to 60°C, extract for 2 hours, and collect the pigment extract; continue to extract twice according to the above-mentioned process method; combine the pigment extract for three times;

[0030] c. Filtration The pigment extraction solution obtained in step (b) is filtered with a plate and frame filter press to remove impurities to obtain the pigment fil...

Embodiment 3

[0037] A method for extracting carotene from carrots, through the following process steps:

[0038] a. Raw material selection and processing: choose dark red carrots with tight texture and high pigment content as raw materials, and shred them after cleaning to obtain shredded carrots for subsequent use;

[0039] B, alcohol extraction 100kg of shredded carrots obtained in step (a) is placed in an extraction tank, adding a concentration of 50% ethanol solution as an extraction agent, the addition is 1.5 times the quality of shredded carrots, with 0.5mol / L Adjust the pH value to 5.0 with hydrochloric acid, control the temperature at 65°C, extract for 1 hour, and collect the pigment extract; continue to extract twice according to the above-mentioned process method; combine the pigment extract for three times;

[0040] c. Filtration The pigment extraction solution obtained in step (b) is filtered with a plate and frame filter press to remove impurities to obtain the pigment filtrat...

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Abstract

The invention relates to a method for extraction of a carrot pigment from carrots. The method includes: selecting dark red carrots with close texture and a high pigment content as raw materials, conducting flushing and shredding, then performing extraction by an ethanol solution to obtain a pigment extract liquid; filtering the pigment extract liquid to remove impurities, then conducting primary vacuum concentration, and then carrying out enzymolysis by pectinase; employing an ethanol solution to conduct alcohol precipitation to remove pectin, thus obtaining a clarified pigment liquid; adding a white-peel white-core radish juice into the clarified pigment liquid, mixing them, conducting warm immersion treatment, then shifting the liquid mixture into a pressure cooker, rapidly raising the temperature to more than 121DEG C, conducting pressure relief quickly, discharging all steam and removing the peculiar smell; and then carrying out secondary concentration and spray drying, thus obtaining the carrot pigment powder. The extraction invention provided by the invention has the advantages of simple process, short preparation period and good peculiar smell removal effect, enhances the mouthfeel and taste of the carrot pigment, and has a high pigment extraction rate.

Description

technical field [0001] The invention relates to a dye of natural origin prepared from natural raw materials, in particular to a method for extracting carrot pigment from carrots. Background technique [0002] Carotene exists in large quantities in plant tissues and is one of the main nutrients in human food. Generally speaking, natural pigments have more advantages than synthetic pigments, and many natural pigments have certain nutritional value and medical value. Natural carotene is recognized as an excellent and nutritious food additive of Class A. It can be used as edible orange pigment and nutritional enhancer. It is an antidote to various diseases, especially cancer, and it is also a drug with extensive immune functions and an indispensable feed additive. [0003] Carrots are rich in carotene, and the content is 5 to 7 times higher than that of tomatoes. Carotene is digested and decomposed into vitamin A after being vegetarian, which can prevent night blindness and re...

Claims

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Application Information

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IPC IPC(8): C09B61/00
Inventor 倪海平唐茂林杨众唐严芳
Owner 威海市桢昊生物技术有限公司
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