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Portulace polysaccharide ultrasonic-auxiliary extraction method

A purslane, ultrasonic technology, applied in the direction of antitoxin, blood diseases, extracellular fluid diseases, etc., can solve the problems of high energy consumption, large loss, low yield, etc., to improve the crushing speed, save the extraction cost, improve the The effect of product quality

Inactive Publication Date: 2014-06-18
QINGDAO ZHONGREN PHARMA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] In order to overcome the above-mentioned defects existing in the prior art field, the purpose of the present invention is to provide a method for ultrasonically assisted extraction of purslane polysaccharides, which solves the problem of low yield and high loss in the traditional method of extracting purslane polysaccharides in the prior art. Big, energy-intensive problems

Method used

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Embodiment

[0013] The method for ultrasonically assisted extraction of purslane polysaccharides in this embodiment comprises the following steps: washing the harvested fresh purslane, drying in a drying oven at 50°C, crushing with a pulverizer, sieving with 40 mesh, 5 times Petroleum ether reflux degreasing 2 times, then 5 times 95% ethanol reflux extraction 2 times, the filter residue is dried in a ventilated place, after drying, add 45 times distilled water, extract in an ultrasonic cleaning tank with a power of 130W at 75°C for 55 minutes, and the extraction is complete After filtering the extract, use a vacuum rotary evaporator to concentrate the filtrate to an appropriate volume, take the filtrate for alcohol analysis and centrifugation at 4°C, wash the obtained precipitate with 95% ethanol, absolute ethanol, and acetone several times, and dry it in vacuum to obtain Purslane polysaccharide, the yield is 13.28%.

[0014] The present invention adopts ultrasonic-assisted method to extr...

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Abstract

The invention discloses a purslane polysaccharide ultrasonic-auxiliary extraction method, and purslane polysaccharide is extracted by the following steps: drying, crushing, screening, degreasing, ethanol reflux extraction, drying in air, ultrasonic extraction, concentration, alcohol precipitation, centrifugation, washing, drying and the like. Ultrasonic ''cavitation phenomenon'' can produce an instant thousands of PA pressure, tiny bubbles in an extraction medium are compressed, burst and broken, and a target extract is acceleratedly dissolved; diffusion of dissolved components can be intensified by ''mechanical vibration'' and ''thermal effect'', and the whole process is completed in a moment, so that the broken speed is increased, the broken time is shortened, the extraction efficiency is greatly improved, the extraction cost is saved, and the product quality is improved.

Description

[0001] technical field [0002] The invention belongs to the technical field of extraction technology, and in particular relates to a method for ultrasonically assisted extraction of purslane polysaccharide. [0003] Background technique [0004] Purslane is an annual herbaceous plant of the family Portulaca oleracea, which is distributed all over the country and is a dual-purpose plant for medicine and food. The whole herb is used for medicinal purposes. It has the functions of clearing away heat and dampness, detoxifying, reducing swelling, reducing inflammation, quenching thirst and diuresis. The seeds can improve eyesight. Studies have shown that the ethanol extract and water decoction of purslane have significant inhibitory effects on Shigella. In addition, purslane extracts also have inhibitory effects on Escherichia coli, typhoid bacillus, and Staphylococcus aureus. Polysaccharides are the main bioactive substances of purslane. If purslane polysaccharides can be ext...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08B37/00A61P29/00A61P39/02A61P7/10A61P31/04
Inventor 张述智夏伟朱绍辉张浩王晓丽徐权汗李之详许团辉
Owner QINGDAO ZHONGREN PHARMA
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