Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Method for drying rehmannia through nitrogen regulating hot air

A technology of hot air drying and air conditioning, which is applied to the types of dried products, heating to dry solid materials, and preliminary treatment to promote the drying of solid materials. It can solve the problems of catalpol loss, long drying time, and low drying efficiency. Soften the material structure, enhance the strengthening effect, and improve the effect of drying rate

Active Publication Date: 2015-02-04
HENAN UNIV OF SCI & TECH
View PDF3 Cites 5 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a method for drying rehmannia glutinosa with nitrogen atmosphere and hot air, so as to solve the problems of low drying efficiency, long drying time and serious loss of catalpol in the existing method for drying rehmannia glutinosa

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] The method for drying Rehmannia glutinosa with nitrogen atmosphere adjustment hot air of the present embodiment comprises the following steps:

[0032] 1) Slicing: select mature rehmannia glutinosa, wash and dry it, cut the rehmannia glutinosa into thin slices with a thickness of 6mm, and obtain rehmannia glutinosa slices;

[0033] 2) Steam-assisted ultrasonic pretreatment: spread 120g of Dihuang slices on the surface of the ultrasonic radiation plate, set the ultrasonic power to 200W, and the ultrasonic frequency to 100kHz, turn on the ultrasonic generator, and perform direct contact ultrasonic vibration on the Dihuang slices; at the same time, turn on the water The steam ejector sprays high-temperature water vapor on the surface of the material, the injection pressure is 0.12MPa, the water vapor temperature is 105°C, and the flow rate is 400ml / min; the steam-assisted ultrasonic pretreatment time is 10min;

[0034]3) Far-infrared radiation assisted nitrogen air conditi...

Embodiment 2

[0038] The method for drying Rehmannia glutinosa with nitrogen atmosphere adjustment hot air of the present embodiment comprises the following steps:

[0039] 1) Slicing: select mature rehmannia glutinosa, wash and dry it, cut the rehmannia glutinosa into thin slices with a thickness of 3mm, and obtain rehmannia glutinosa slices;

[0040] 2) Steam-assisted ultrasonic pretreatment: spread 110g of Dihuang slices on the surface of the ultrasonic radiation plate, set the ultrasonic power to 200W, and the ultrasonic frequency to 100kHz, turn on the ultrasonic generator, and perform direct contact ultrasonic vibration on the Dihuang slices; at the same time, turn on the water The steam ejector sprays high-temperature water vapor on the surface of the material, the injection pressure is 0.12MPa, the water vapor temperature is 105°C, and the flow rate is 400ml / min; the steam-assisted ultrasonic pretreatment time is 10min;

[0041] 3) Far-infrared radiation assisted nitrogen air-condit...

Embodiment 3

[0045] The method for drying Rehmannia glutinosa with nitrogen atmosphere adjustment hot air of the present embodiment comprises the following steps:

[0046] 1) Slicing: select mature rehmannia glutinosa, wash and dry it, cut the rehmannia glutinosa into thin slices with a thickness of 3mm, and obtain rehmannia glutinosa slices;

[0047] 2) Steam-assisted ultrasonic pretreatment: spread 120g of Dihuang slices on the surface of the ultrasonic radiation plate, set the ultrasonic power to 350W, and the ultrasonic frequency to 20kHz, turn on the ultrasonic generator, and perform direct contact ultrasonic vibration on the Dihuang slices; at the same time, turn on the water The steam ejector sprays high-temperature water vapor on the surface of the material, the injection pressure is 0.12MPa, the water vapor temperature is 105°C, and the flow rate is 400ml / min; the steam-assisted ultrasonic pretreatment time is 3min;

[0048] 3) Far-infrared radiation assisted nitrogen air conditio...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a method for drying rehmannia through nitrogen regulating hot air. The method includes the steps that ultrasonic preprocessing is carried out on the rehmannia firstly; and then nitrogen regulating hot air drying is carried out. According to the method for drying the rehmannia through the nitrogen regulating hot air, ultrasonic preprocessing is combined with the nitrogen regulating hot air drying to dry the rehmannia; advantage complementing and the coordination effect of a plurality of processing modes are achieved; catalpol losses in the rehmannia drying process are slowed down; the dry rehmannia quality is improved; meanwhile, the drying resistance is reduced; the drying efficiency is improved; the drying time is shortened. By means of the method for drying the rehmannia, the time used for achieving the dry rehmannia safety storage moisture content which is 0.15g / g in dry basis ranges from 130 min to 510 min; the dry rehmannia catalpol content ranges from 2.42% to 2.98%; the drying time is short; the catalpol content is high; the problems that traditional drying time for drying the rehmannia through the hot air is long, and the drying quality is not high are solved; rapid and quality-retaining drying of the rehmannia is achieved.

Description

technical field [0001] The invention belongs to the technical field of drying and processing of agricultural products, and in particular relates to a method for drying rehmannia glutinosa with nitrogen-adjusted atmosphere and hot air. Background technique [0002] Drying is widely used in many fields such as agriculture, food, medicine, chemical industry, papermaking, mining and wood processing, and plays an extremely important role in modern production. Drying is an important means of food and agricultural product preservation and the key to processing high-quality dried products. The purpose of drying is mainly to improve the storage and transportability of products, improve the quality and applicability of products, as well as the development of new products and the utilization of new energy. Traditional hot air drying has the advantages of simple equipment and easy control of parameters, but it takes a long time to operate, and at the same time, it has a greater degree ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): A61K36/804F26B1/00F26B3/02F26B3/30
CPCA61K36/804A61K2236/10A61K2236/15A61K2236/17F26B1/00F26B3/02F26B3/30F26B2200/00
Inventor 刘云宏吴建业朱文学罗磊樊金玲关随霞
Owner HENAN UNIV OF SCI & TECH
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com