Microwave radiation subcritical water method for extracting biomass (common cordgrass) active ingredients

Abstract

The invention provides a novel microwave radiation-subcritical water extraction technique, which is a microwave radiation subcritical water method for extracting biomass (common cordgrass) active ingredients. The method has advantages of simple equipment, wide application range, quick extraction, high yield, low energy consumption, low cost and environment-friendliness. The method provided by the invention adjusts release of microwave power to selectively heat a material, and controls temperature and pressure of subcritical water to change the polarity of water in a certain range, so that different active ingredients in biomass (common cordgrass) can be extracted selectively and continuously; and a heat conduction mode is changed from a traditional conduction way of gradual transfer from outside to inside of the medium to a way of internal molecular resonance themogenesis. The means for realizing the invention mainly comprise sorting, crushing, hydration, microwave heating, subcritical water extraction, filtering, vacuum low temperature concentration and drying.

Description

technical field [0001] The present invention relates to a method for extracting the active active ingredients of biomass (spartina), especially the method of heating by microwave radiation, which completely changes the heat conduction mode in the extraction process, and gradually transfers the conduction mode from the traditional outside to the inside of the medium. Ways to generate heat for internal molecular resonance. Background technique [0002] Subcritical water extraction technology is a new type of extraction technology that has just been developed in the past 10 years. It is considered to be a promising extraction technology and a supplement to supercritical extraction. It is much better than the traditional water immersion-enzyme hydrolysis extraction method and other traditional extraction methods, and is especially suitable for the extraction of compounds with strong polarity and large relative molecular mass in biomass. However, the heating source has not chan...

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Problems solved by technology

However, the heating source has not changed and cannot distinguish the specific molecular structure, so the purity of the product cannot be higher, and the energy consumption is also large, and the subsequent separation procedures are troublesome.

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