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Method for extracting beta-carotene from pawpaws through carbon tetrachloride

A technology of carotene and carbon tetrachloride, applied in the direction of organic chemistry, can solve problems such as poisoning, and achieve the effect of simple operation, short time and wide adaptability

Inactive Publication Date: 2016-08-03
LIUZHOU SANNONG TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

β-carotene produced by chemical synthesis is a synthetic product, and excessive intake by the human body will cause poisoning

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] The method that carbon tetrachloride extracts the beta-carotene in papaya, comprises the following steps:

[0024] (1) Beating: put the papaya with yellow skin and mature skin into the beating machine to make slurry, and obtain the papaya slurry with solid particle size ≤ 2mm and moisture content of 18%;

[0025] (2) Centrifugation: Send the papaya slurry into a centrifuge for 10 minutes to obtain papaya wet powder with a moisture content of 8%;

[0026] (3) Ultrasonic extraction: At a temperature of 50°C, double-frequency ultrasonic extraction is performed on the wet powder of papaya and benzene at a weight ratio of 1:2. The extraction frequency is 30kHz and 65kH. Extract for 10 minutes, extract 3 times, filter, and combine The extract obtained for 3 times;

[0027] (4) Evaporation: put the extract into a rotary evaporator, and the temperature of the rotary evaporator is heated at a constant temperature of 80°C to evaporate the benzene to obtain crude β-carotene;

[...

Embodiment 2

[0031] The method that carbon tetrachloride extracts the beta-carotene in papaya, comprises the following steps:

[0032] (1) Beating: put the papaya with yellow skin and mature skin into the beating machine to make slurry, and obtain the papaya slurry with solid particle size ≤ 2mm and moisture content of 35%;

[0033] (2) Centrifugation: send the papaya slurry into a centrifuge for 25 minutes to obtain papaya wet powder with a moisture content of 12%;

[0034] (3) Ultrasonic extraction: Under the temperature of 60 ℃, the wet powder of papaya is subjected to dual-frequency ultrasonic extraction with benzene in a weight ratio of 1:4. The extraction frequency is 55kHz and 85kH. Extract for 25 minutes, extract 3 times, filter, and combine The extract obtained for 3 times;

[0035] (4) Evaporation: put the extract into a rotary evaporator, and the rotary evaporator is heated at a constant temperature of 99°C to evaporate benzene to obtain crude β-carotene;

[0036] (5) Purifica...

Embodiment 3

[0039] The method that carbon tetrachloride extracts the beta-carotene in papaya, comprises the following steps:

[0040] (1) Beating: put the papaya with yellow skin and mature skin into the beating machine to make slurry, and obtain the papaya slurry with solid particle size ≤ 2mm and moisture content of 25%;

[0041] (2) Centrifugation: send the papaya slurry into a centrifuge for 15 minutes to obtain papaya wet powder with a moisture content of 10%;

[0042] (3) Ultrasonic extraction: At a temperature of 55°C, double-frequency ultrasonic extraction is performed on the wet papaya powder and benzene in a weight ratio of 1:3. The extraction frequency is 42kHz and 80kH. Extract for 20 minutes, extract 3 times, filter, and combine The extract obtained for 3 times;

[0043] (4) Evaporation: put the extract into a rotary evaporator, the temperature of the rotary evaporator is heated at a constant temperature of 95°C, and the rotation speed of the rotary evaporator is 90r / min, an...

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Abstract

The invention provides a method for extracting beta-carotene from pawpaws through carbon tetrachloride. The beta-carotene is obtained through the steps of pawpaw pulping, centrifuging, ultrasonic extracting, evaporating and purifying. The method is easy to operate, short in time, safe, nontoxic, capable of not being limited by the environment and time and wide in adaptability, and the average purity of the obtained beta-carotene reaches up to 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 papaya with carbon tetrachloride. Background technique [0002] β-carotene (C 40 h 56 ) is the precursor of vitamin A, which has the functions of inhibiting cell mutation, combining active oxidation and anti-oxidation, capturing free radicals, enhancing the body's immunity, resistance, and reducing the probability of cardiovascular disease and cancer. Therefore, it was identified as a class A excellent nutritional food additive by the Joint Expert Committee of the Food and Agriculture Organization of the United Nations (FAO) and the World Health Organization (WHO). At present, more than 50 countries and regions in the world have approved the use, and my country has also approved the use of it as the first batch of over-the-counter drugs. [0003] At present, there are three methods of production of β-carotene: plant extraction me...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07C403/00
CPCC07C403/00
Inventor 莫肯堂
Owner LIUZHOU SANNONG TECH
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