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Preparation and use for loquat-shell aqueous extract

A technology of water extract and loquat core, which is applied in the field of preparation of loquat core water extract, can solve the problems of environmental pollution, waste of resources, etc., and achieve the effects of high curative effect, small toxic and side effects, and convenient use

Inactive Publication Date: 2007-04-04
FUZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But every year tens of thousands of tons of loquat kernels in the country are discarded without being used, which not only pollutes the environment, but also wastes precious resources.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0019] The preparation method of the embodiment of the present invention is as follows: using fresh loquat core or loquat core powder as raw material, using 10 to 30 times the weight (W / W) of loquat core and dry fruit, extracting 1 to 3 times at 50 to 85 ° C, Each time for 2 to 4 hours, the extracts were combined and filtered, and the filtrate was recovered under reduced pressure at -0.05 to -0.095MPa and 50 to 80°C, and concentrated in a vacuum to obtain a water extract of loquat kernels.

[0020] In the above method, warm water at 50-85°C is used, and the dissolution and diffusion effect produced by the high temperature is used to improve the penetrating ability of the solvent to the plant cells of the loquat nucleus, so that the warm water can more easily penetrate into the internal tissue structure of the loquat nucleus, greatly improving the quality of the loquat nucleus. Dissolution rate and extraction efficiency of medicinal active ingredients such as amygdalin, saponins...

Embodiment 1

[0035] Using loquat kernels produced in Putian, Fujian Province as raw materials, fresh loquat kernels are washed with water, dried (air-dried, oven-dried or sun-dried), crushed, and sieved through 20-30 meshes to obtain loquat kernel powder. Put 3.6kg of loquat kernel powder into In the extraction tank, use water 10 times the weight (W / W) of the loquat core powder, extract 3 times at 73°C, 2 hours each time, combine the extracts, filter, and the filtrate is at -0.05~-0.095MPa, 50~80°C Under the same conditions, the solvent is recovered under reduced pressure and concentrated in vacuo to obtain a water extract of loquat core. After determination, in the prepared loquat kernel water extract, the extraction rate of loquat kernel amygdalin is 82.7%, the extraction rate of loquat kernel saponin is 44.9%, and the extraction rate of loquat kernel water-soluble polysaccharide is 82.0%.

Embodiment 2

[0037] Put 1.8 kg of 20-30 mesh loquat core powder into an extraction tank, extract 2 times at 50°C with water 30 times the weight (W / W) of the loquat core powder, 4 hours each time, combine the extracts, and filter , and the filtrate was recovered under reduced pressure at -0.05 to -0.095MPa, 50 to 80°C, and the solvent was recovered and concentrated in vacuum to obtain a loquat seed water extract. After determination, in the prepared loquat kernel water extract, the extraction rate of loquat kernel amygdalin is 81.6%, the extraction rate of loquat kernel saponin is 40.6%, and the extraction rate of loquat kernel water-soluble polysaccharide is 80.1%.

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PUM

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Abstract

A process for preparing the extract of loqua fruit kernel includes such steps as extracting in polar organic solvent, collecting the liquid extract, filtering, vacuum recovery of solvent, and vacuum concentrating. The resultant extract can be used to prepare the phlegm-resolving, cough-easing, aschma and inflammation relieving, antiviral and hpyerglycemic medicines.

Description

technical field [0001] The invention relates to a green chemical preparation method for extracting medicinal active ingredients from plants, in particular to a preparation method and application of a loquat seed water extract. Background technique [0002] Loquat is a plant of the genus Loquat [Eriobotrya japonica (Thunb.) Lindl.] of the Rosaceae family, and is a rare specialty fruit in subtropical regions of my country. China is the world's most important producer of loquat, with cultivation area and output accounting for about 2 / 3 of the world. Its main production areas are Putian in Fujian, Tangqi in Zhejiang and Dongting Mountain in Jiangsu. There are 354 cultivated varieties of loquat, the main high-yielding varieties are Zaozhong No. 6, Jiefang Bell, Changhong No. 3 and Taicheng No. 4, etc. [0003] The loquat in Putian, Fujian is one of the "Three Famous Fruits of Xinghua" and an important "famous, excellent and special" fruit in Fujian Province. The city's existing...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61K36/73A61K9/08A61K9/10A61K9/14A61K9/16A61K9/20A61K9/48A61P11/06A61P11/10A61P11/14A61P3/10A61P31/12A61K131/00
Inventor 陈剑锋陈浩郭养浩
Owner FUZHOU UNIV