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Microwave exractor

An extraction device and microwave technology, which is applied in the field of microwave extraction devices, can solve the problems of inability to realize continuous large-scale production, high processing temperature, and low processing efficiency, and achieve the effects of continuous operation, high processing efficiency, and increased processing capacity

Inactive Publication Date: 2005-02-23
SOUTH CHINA UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But so far, all microwave extraction processes are intermittent, unable to achieve industrialized continuous mass production, and have low processing efficiency, small processing capacity, high processing temperature, long time, large amount of solvent, high energy consumption and extraction problems. Disadvantages such as poor effect

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] The pre-broken sugarcane is sent to the extraction device, the processing capacity is 30kg / hour, the bagasse takes about 15 minutes from entering to discharging, the amount of water added per hour is 150kg, microwave power is added to 10kW, and the temperature is controlled at 90-95°C to obtain 140kg of extracted juice, the recorded refraction hammer (solid matter accounts for the mass percentage of solution) is 2.69 ° Bx, and the sucrose content (light conversion) is 2.62%. After calculation, 3.76kg of dry solids are extracted altogether, and sucrose is 3.67kg. And adopt Soxhlet extraction, same 30 kilograms of bagasse add 300kg water, heat and reflux 180 minutes, finally obtain the extract of 290kg, Brix is ​​1.28 ° of Bx, and sucrose content (light conversion degree) is 1.23%, calculates and obtains dry solid matter altogether It is 3.71kg, and sucrose is 3.60kg. However, if a closed batch industrial microwave oven is used for extraction, only 5 kg of bagasse and 30 ...

Embodiment 2

[0024] Utilize this system to process Luo Han Guo, extract mogrosides, process 10 kilograms of Luo Han Guo (through crushing) in the same way, add 300 liters of 50% alcohol, the processing time is 26 minutes, control the leaching temperature to be 70 ° C, and obtain 745 g of Luo Han Guo saponins. Using the Soxhlet method for extraction, with the same treatment capacity and solid-liquid ratio, reflux for 120 minutes to finally obtain 725g mogroside. With the same processing capacity and solid-to-liquid ratio, the intermittent microwave industrial extraction system is used for extraction. Each batch can be filled with a capacity of 30 liters, and the processing time of each batch is 10 minutes. It takes a total of 100 minutes to obtain about 739g of mogrosides.

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Abstract

A microwave extractor is composed of a microwave heater with hollow cavity and microwave magnetron, and a solid-liquid delivering unit passing through said hollow cavity of microwave heater and with solid inlet, extracting liquid inlet and outlet and solid outlet.

Description

technical field [0001] The invention relates to a microwave extraction device, in particular to a microwave extraction device which has the advantages of high efficiency, rapidity, low consumption, etc., and can realize continuous operation of the microwave extraction process. Background technique [0002] The traditional classic solid-liquid extraction method mainly uses water or organic solution as the solvent, and leaches the solid matter and extracts the active ingredients by direct or indirect steam heating. With the development of microwave technology, microwave technology is gradually applied to strengthen the solid-liquid extraction process. But so far, all microwave extraction processes are intermittent, unable to achieve industrialized continuous mass production, and have low processing efficiency, small processing capacity, high processing temperature, long time, large solvent consumption, high energy consumption and extraction problems. Poor effect and other sho...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D11/02
Inventor 郑必胜蔡妙颜郭祀远李琳
Owner SOUTH CHINA UNIV OF TECH
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