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Method for extracting beta-carotene from fructus lycii through ethyl acetate

A technology of ethyl acetate extraction and carotene, applied in food science and other directions, can solve the problems of limited production area, high cost, difficult to guarantee product quality, etc., and achieve the effects of wide adaptability, short time and simple operation.

Inactive Publication Date: 2016-06-29
薛晶
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the harsh production environment conditions, the salt algae method not only restricts the production area, but also can only be produced for a few months in a year. The glycerol and protein content in salina are more than three times the content of β-carotene, which is an important method for the production of high-purity The product increases the difficulty of purification
Production of natural β-carotene by fermentation is complex, costly, and difficult to guarantee product quality
For the extraction of natural β-carotene, the organic solvents and toxic solvent residues in the most used methods have always restricted the use of extraction products, bringing more food safety and environmental pollution problems

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] The method that ethyl acetate extracts beta-carotene in wolfberry, comprises the following steps:

[0026] (1) Beating: Put the wolfberry fruit into the beating machine to make a slurry, and obtain the wolfberry fruit slurry with a solid particle size ≤ 3mm and a moisture content of 20%;

[0027] (2) Centrifugation: send the wolfberry slurry into a centrifuge for 10 minutes to obtain wolfberry wet powder;

[0028] (3) Ultrasonic extraction: The wet wolfberry fruit powder is subjected to dual-frequency ultrasonic extraction with ethyl acetate at a weight ratio of 1:2 at a temperature of 40°C. times, filter, and combine the extracts obtained for 2 times;

[0029] (4) Evaporation: put the extract in a rotary evaporator, the temperature of the rotary evaporator is heated at a constant temperature of 78°C, the rotation speed of the rotary evaporator is 60r / min, and the ethyl acetate is evaporated to obtain the crude product of β-carotene;

[0030] (5) Purification: Add 2 t...

Embodiment 2

[0033] The method that ethyl acetate extracts beta-carotene in wolfberry, comprises the following steps:

[0034] (1) Beating: Put the wolfberry fruit into the beating machine to make a slurry, and obtain the wolfberry fruit slurry with a solid particle size ≤ 3mm and a moisture content of 40%;

[0035] (2) Centrifugation: Put the wolfberry slurry into a centrifuge for 25 minutes to obtain the wolfberry wet powder;

[0036] (3) Ultrasonic extraction: The wet wolfberry fruit powder is subjected to dual-frequency ultrasonic extraction with ethyl acetate at a weight ratio of 1:4 at a temperature of 50°C. The extraction frequency is 50kHz and 90kH, and each extraction is 25 minutes. times, filter, and combine the extracts obtained for 2 times;

[0037] (4) Evaporation: put the extract into a rotary evaporator, the temperature of the rotary evaporator is heated at a constant temperature of 99°C, and the rotation speed of the rotary evaporator is 75r / min, and the ethyl acetate is e...

Embodiment 3

[0041] The method that ethyl acetate extracts beta-carotene in wolfberry, comprises the following steps:

[0042] (1) Beating: Put the wolfberry fruit into the beating machine to make a slurry, and obtain the wolfberry fruit slurry with a solid particle size ≤ 2mm and a moisture content of 30%;

[0043] (2) Centrifugation: Send the wolfberry slurry into a centrifuge for 15 minutes to obtain the wolfberry wet powder;

[0044] (3) Ultrasonic extraction: The wet wolfberry fruit powder is subjected to dual-frequency ultrasonic extraction with ethyl acetate at a weight ratio of 1:3 at a temperature of 45°C. times, filter, and combine the extracts obtained for 2 times;

[0045] (4) Evaporation: put the extract into a rotary evaporator, the constant temperature heating temperature of the rotary evaporator is 80°C, the rotation speed of the rotary evaporator is 70r / min, and the ethyl acetate is evaporated to obtain the crude product of β-carotene;

[0046] (5) Purification: Add 3 ti...

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Abstract

The invention provides a method for extracting beta-carotene from fructus lycii through ethyl acetate. Fructus lycii is pulped, centrifugalized, subjected to ultrasonic extraction, evaporated and purified, and beta-carotene is obtained. The method is simple to operate, consumes short time and is safe and non-toxic, free of limits of environment and time and wide in adaptability; the average purity of the obtained beta-carotene is as high as 90%.

Description

technical field [0001] The invention relates to a method for extracting beta-carotene, in particular to a method for extracting beta-carotene in wolfberry fruit with ethyl acetate. Background technique [0002] The molecular formula of β-carotene is C 40 h 55 , is the precursor of synthetic vitamin A, is an antioxidant, has detoxification effect, is an indispensable nutrient for maintaining human health, has significant functions in anti-cancer, prevention of cardiovascular diseases, cataracts and anti-oxidation, and then Protects against aging and many degenerative diseases caused by aging. [0003] The production method of β-carotene is divided into the production method of chemical synthesis and the production method of natural product: [0004] 1. Chemical synthesis method: use the intermediate product C in the synthesis process of vitamin A 14 Aldehyde or directly use vitamin A as raw material to produce β-carotene. Although chemically synthesized β-carotene has re...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A23L33/105A23L5/30
CPCA23V2002/00
Inventor 黄珏丰洁
Owner 薛晶
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