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Method for extracting 1-octacosanol from bagasse

A technology of octacosanol and bagasse is applied in chemical instruments and methods, preparation of organic compounds, production of bulk chemicals, etc., can solve the problems of long extraction time, complex process, large energy consumption, etc., and achieves reduction in extraction Effects of pressure and temperature, increasing extraction efficiency, and reducing extraction time

Active Publication Date: 2012-04-04
SOUTH CHINA UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

This method has the disadvantages of complex process, long operation time, low yield and environmental pollution, and consumes a large amount of solvent in the extraction process.
There are also reports on the use of supercritical carbon dioxide to extract octacosanol from bagasse or sugarcane skin, but the extraction time is long and the energy consumption is large.

Method used

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  • Method for extracting 1-octacosanol from bagasse
  • Method for extracting 1-octacosanol from bagasse
  • Method for extracting 1-octacosanol from bagasse

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] Bagasse is sorted, cleaned, sterilized, dried, pulverized into powder by a pulverizer, and passed through a 200-mesh sieve; 1 kg of bagasse powder with a crushed particle size of 200 mesh is put into an extraction kettle with a built-in plug-in ultrasonic device to form a filling layer; Driven by pressure, supercritical carbon dioxide enters the extraction kettle from the bottom, passes through the bagasse powder in the filling layer, then flows out of the extraction kettle from the top, and enters the separation kettle through a pressure reducing valve. After 2 hours of extraction, the separation kettle is opened after the pressure is reduced. Separate the product into an open plastic tank to obtain about 55 grams of ointment; the ultrasonic frequency during extraction is 16kHz, the power density is 80W / L, and the ultrasonic irradiation mode is intermittent time / continuous irradiation time is 4s / 4s; The temperature of the kettle is 35°C and the pressure is 15Mpa; the te...

Embodiment 2

[0031] Bagasse is sorted, cleaned, sterilized, dried, pulverized into powder by a pulverizer, and passed through a 60-mesh sieve; 1 kg of bagasse powder with a particle size of 60 mesh is put into an extraction kettle with a built-in plug-in ultrasonic device to form a filling layer; Driven by pressure, supercritical carbon dioxide enters the extraction kettle from the bottom, passes through the bagasse powder in the filling layer, flows out of the extraction kettle from the top, and enters the separation kettle through a pressure reducing valve. After 3 hours of extraction, the separation kettle is opened after depressurization. The product is separated into an open plastic tank to obtain about 51 grams of ointment; wherein the ultrasonic frequency is 24kHz, the power density is 120W / L, and the ultrasonic irradiation mode is intermittent time / continuous irradiation time is 8s / 8s; extraction The temperature of the kettle is 50°C and the pressure is 35Mpa; the temperature of the...

Embodiment 3

[0033] Bagasse is sorted, cleaned, sterilized, dried, pulverized into powder with a pulverizer, and passed through a 100-mesh sieve; 1 kg of bagasse powder with a particle size of 100 mesh is put into an extraction kettle with a built-in plug-in ultrasonic device to form a filling layer; Driven by pressure, supercritical carbon dioxide enters the extraction kettle from the bottom, passes through the bagasse powder in the filling layer, then flows out of the extraction kettle from the top, and enters the separation kettle through a pressure reducing valve. After 4 hours of extraction, the separation kettle is opened after the pressure is reduced. The product is separated into an open plastic tank to obtain about 62 grams of ointment; wherein the ultrasonic frequency is 20kHz, the power density is 100W / L, and the ultrasonic irradiation mode is intermittent time / continuous irradiation time is 6s / 6s; extraction The temperature of the kettle is 45°C and the pressure is 30Mpa; the te...

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Abstract

The invention discloses a method for extracting 1-octacosanol from bagasse. The method is characterized by comprising the following steps of: (1) grinding the bagasse into powder; (2) putting the bagasse powder obtained in the step (1) into an extraction kettle to form a packing layer; (3) extracting, namely introducing supercritical carbon dioxide into the extraction kettle through the bottom of the extraction kettle, allowing the supercritical carbon dioxide to flow through the bagasse powder of the packing layer, flow out of the extraction kettle through the top of the extraction kettle and enter a separation kettle, and performing ultrasonic radiation on the supercritical carbon dioxide in the extraction kettle in the extracting process; and (4) separating 1-octacosanol dissolved in the carbon dioxide in the separation kettle. The 1-octacosanol is extracted by an ultrasound-enhanced supercritical carbon dioxide fluid, so the production efficiency is high, the cost is low, the product purity is high, organic solvents are not contained, and the 1-octacosanol can serve as an important raw material for health foods, cosmetics and medicines.

Description

technical field [0001] The invention relates to the technical field of deep processing of natural products, in particular to a method for ultrasonically enhancing supercritical carbon dioxide to extract octacosanol from bagasse. Background technique [0002] Octacosanol is a naturally occurring higher alcohol, mainly found in natural products such as cane wax, bran wax, wheat germ oil, beeswax and insect wax. Octacosanol is a safe and efficient nutritional supplement with many biological functions and clinical application value. It can be used to treat osteoporosis with hypercalcemia, treat hypercholesterolemia and hyperlipoproteinemia diseases, stimulate Animal and human sexuality. Cosmetics containing octacosanol can promote skin blood circulation and activate cells, and have the effects of anti-inflammation and prevention of skin diseases. At present, octacosanol is used as a natural health food additive, and is used in candies, beverages, capsules, capsules, tablets, c...

Claims

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Application Information

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IPC IPC(8): C07C31/02C07C29/86
CPCY02P20/54
Inventor 李冰朱良王兆梅
Owner SOUTH CHINA UNIV OF TECH
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