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Production process for extracting isoorientin from bamboo product waste

A technology for isoorientin and production process, which is applied in the field of isoorientin extraction, can solve problems such as environmental pollution, waste of natural resources and the like, and achieve the effect of reducing waste of natural resources and environmental pollution

Inactive Publication Date: 2013-04-17
湘西自治州奥瑞克医药化工有限责任公司
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  • Abstract
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AI Technical Summary

Problems solved by technology

[0005] More importantly, a large amount of green bamboo produced in the processing of bamboo products is now used as fuel or directly landfilled as waste, resulting in waste of natural resources and environmental pollution

Method used

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Examples

Experimental program
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Embodiment Construction

[0011] The present invention is specifically described with the following examples, but the present invention is not limited to the content contained in the following examples.

[0012] Weigh 100 kg of bamboo greens that have been sorted and removed, and extract twice with 500L and 400L ethyl acetate, combine the two extracts, filter, concentrate under reduced pressure at -0.08MPa to form a thick paste, add 50L of 40% ethanol Reflux and dissolve for 30 minutes, filter while hot, concentrate the filtrate to 20 liters under reduced pressure at -0.08 MPa, let it cool and let it stand for 12 hours, and obtain 1880 grams of solid matter by suction filtration, dissolve the solid matter with 10 liters of 95% ethanol, pass through silica gel thick and short The column was eluted with 60 liters of 30%, 50%, and 80% ethanol in sequence, and the 80% ethanol eluted fractions were collected, concentrated under reduced pressure until there was no alcohol smell, allowed to cool, and then crys...

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Abstract

Provided is a production process for extracting isoorientin from bamboo product waste, including cleaning the bamboo in waste of bamboo product processing, removing impurities, extracting by reflux, concentrating under reduced pressure, dissolving by reflux, concentrating under reduced pressure, cooling, drying the solid and dissolving, passing through a silica gel short column, eluting, concentrating under reduced pressure, crystallizing to get coarse crystal, then redissolving, and crystallizing by freezing to get isoorientin crystal. The production process according to the invention can take advantage of bamboo as waste to extract isoorientin to achieve the purposes of reducing waste of natural resources and reducing environmental pollution.

Description

technical field [0001] The invention relates to a production process for extracting isoorientin from bamboo product processing waste. The raw material used is bamboo green in the waste generated in the bamboo product processing process. Background technique [0002] Isoorientin is a kind of isoflavone, also known as isoorientin, it is yellow crystal or powder, molecular formula C 21 h 20 o 11 , molecular weight 448.38, melting point 230~232°C, soluble in methanol, ethanol, isopropanol, n-butanol and other solvents. [0003] Modern medical research shows that isorientin has obvious protective effects on myocardial ischemia and hypoxia. [0004] Isorientin is the main labeled component of bamboo leaf flavonoids. We have found through research that the isorientin content of bamboo green in the waste produced in the process of bamboo product processing is 8-10 times higher than that in bamboo leaves, and the polysaccharide and other components in it are less, which is easier...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07D407/04
Inventor 冉茂元谭德超
Owner 湘西自治州奥瑞克医药化工有限责任公司
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