Yellow eggplant fruit extract and extraction method and application

An extract, the technology of Solanum solanum, applied in the field of Solanum solanum fruit extract, extraction and application, can solve the problems that have not been reported in other reports

Inactive Publication Date: 2004-12-22
HUAZHONG NORMAL UNIV
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

In recent years, there are not many studies on the plant components and prices of its extracts at home a...

Method used

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  • Yellow eggplant fruit extract and extraction method and application
  • Yellow eggplant fruit extract and extraction method and application
  • Yellow eggplant fruit extract and extraction method and application

Examples

Experimental program
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Embodiment 1

[0024] The fresh fruit material of yellow fruit eggplant is crushed, extracted with 70% MeOH, and extracted with n-BuOH to be rich in A (5.4%) active matter, and distilled water is added to make the A concentration 0.0033g% (33ppm), 0.033g% (330ppm) respectively. ), 0.33g% (3300ppm) water solution. The experiment adopts soaking method, and the temperature is controlled at 25±1°C. Take 60 live snails and pack them into nylon mesh bags, put them into the beakers filled with the above-mentioned n-BuOH phase water agents with different concentrations of A, and set water as a control. Repeat 3 times. Take it out after soaking for 24 hours, rinse it several times with clear water, then place it in clear water to raise it for 48 hours, observe its death situation, and count the snail mortality rate. The results are listed in Table 3. The result shows: 0.0033g%~0.33g% (33ppm~3300ppm) of Solanaceae fruit n-BuOH phase water agent can effectively kill oncomelania, three kinds of Solan...

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Abstract

A component 22-imino-3-[4'-(6-deoxy-alpha-L-mannoside)-beta-D- glucoside]-5-dehydrospirostan is prepared from the fruit of a plant 'Huangguoqie' through extracting in organic solvent, chromatography of silica gel column, and HPLCseparation. It has the activity to kill oncomelania.

Description

technical field [0001] The present invention relates to an extract 22-imino-3-[4′-(6″-deoxy-α-L-mannoside)-β-D-glucoside]-5-dehydrospiro Steranes (22-imido-3-[4′-(6″-deoxy-α-L-mannoside)-β-D-glucoside]-5-dehydrospirostan.It agrees with the namingprinciple of IUPAC for short extract A) and Extraction methods and applications. Background technique [0002] Schistosomiasis japonicum is a parasitic disease that seriously endangers the health of the people in our country. Killing Oncomelania snails, the intermediate host of schistosomiasis japonicum, is one of the important means to control and block the spread of schistosomiasis japonicum. At present, chemical molluscicide is still the main method commonly used at home and abroad. Niclosamide recommended by WHO has the disadvantages of high price and low mollusc killing effect. Therefore, it is necessary to seek molluscicides with high molluscicide efficiency, strong selectivity, ability to inhibit snail escape, environmental ...

Claims

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Application Information

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IPC IPC(8): A01N45/00B01D11/02C07J71/00
Inventor 李文新赵利琴盛桂莲王煜冯玉文
Owner HUAZHONG NORMAL UNIV
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