Preparation method for preparing preservative particles by tea dregs recycling

A technology for recycling tea residues, which is applied in the field of preparing anti-corrosion granules by recycling tea residues, can solve the problems of easy inactivation by air oxidation, short action time, poor water solubility of preservatives, etc. Simple, harmless effects

Inactive Publication Date: 2016-11-09
郭舒洋
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention: Aiming at the defects that the existing preservatives have poor water solubility, short action time, and are easily oxidized and inactivated by air, a method is provided by dispersing and extracting organic matter from waste tea leaves, and then concentrating Pre

Method used

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Examples

Experimental program
Comparison scheme
Effect test

example 1

[0017] Firstly, the discarded tea leaves were washed with clean water, dried at 70°C for 10 hours, the dried tea leaves were collected and ground and sieved to prepare 80-mesh dry tea leaves powder, and then the tea leaves powder was mixed with anhydrous Stir and mix with ethanol and place in a three-necked flask, ultrasonically disperse at 200W for 10 minutes to prepare a tea residue dispersion; place the tea residue dispersion prepared above at 65°C, reflux in a water bath for 1 hour, then suction filter and collect Filtrate and filter cake, the filter cake is set aside, and the filtrate is allowed to stand and cooled to room temperature, and the concentrated filtrate is prepared by rotary evaporation at 65°C to 1 / 8 of the original volume of the filtrate; according to the mass ratio of 1:5, the concentrated filtrate and Stir and mix with deionized water, and ultrasonically disperse at 200W for 10 minutes to prepare a tea extract suspension, then stir and mix the tea extract s...

example 2

[0020] Firstly, the discarded tea leaves were washed with clean water, dried at 75°C for 11 hours, the dried tea leaves were collected and ground and sieved to prepare 100-mesh dry tea leaves powder, and then the tea leaves powder was mixed with anhydrous Stir and mix with ethanol and place in a three-necked flask, and ultrasonically disperse at 250W for 12 minutes to prepare a tea residue dispersion; place the above-prepared tea residue dispersion at 70°C, reflux in a water bath for 1.5 hours, then suction filter and remove Collect the filtrate and filter cake, set the filter cake for later use, let the filtrate stand and cool to room temperature, and rotate the evaporation at 70°C to 1 / 8 of the original volume of the filtrate to prepare a concentrated filtrate; according to the mass ratio of 1:5, the concentrated filtrate Stir and mix with deionized water, and ultrasonically disperse at 250W for 12 minutes to prepare a tea extract suspension, then stir and mix the tea extract...

example 3

[0023] Firstly, the discarded tea leaves were washed with clean water, dried at 80°C for 12 hours, the dried tea leaves were collected and ground and sieved to prepare 120-mesh dry tea leaves powder, and then the tea leaves powder was mixed with anhydrous Stir and mix with ethanol and place in a three-necked flask, and ultrasonically disperse at 300W for 15 minutes to prepare a tea residue dispersion; place the above-prepared tea residue dispersion at 80°C, reflux in a water bath for 2 hours, suction filter and collect Filtrate and filter cake, the filter cake is set aside, and the filtrate is allowed to stand and cooled to room temperature, and the concentrated filtrate is prepared by rotary evaporation at 80°C to 1 / 8 of the original volume of the filtrate; according to the mass ratio of 1:5, the concentrated filtrate and Stir and mix with deionized water, and ultrasonically disperse at 300W for 15 minutes to prepare a tea extract suspension, then stir and mix the tea extract su...

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Abstract

The invention relates to a preparation method for preparing preservative particles by tea dregs recycling and belongs to the technical field of preservative particle preparation, in order to overcome the defect that preservatives prepared in the prior art are poor in water solubility, short in acting time and prone to air oxidation leading to inactivation. The method includes: dispersing waste tea dregs for extracting organics, concentrating and drying the organics prior to preparing active anticorrosive powder, subjecting the tea dregs to hydrolysis for preparing hydrogel, subjecting hydrogel and active anticorrosive powder to composite preparation, and then performing drying and grinding to prepare the slow-release preservative particles. The preservative particles have long-time effective preservative effect on food. Preservative time of the preservative particles is prolonged by 10-15%, acting temperature can reach 10-55 DEG C, preparation steps are simple, and the preservative particles are green, environment friendly, harmless to human beings and pollution free.

Description

technical field [0001] The invention relates to a method for preparing anticorrosion granules from tea dregs as a resource, and belongs to the technical field of anticorrosion granule preparation. Background technique [0002] The food industry is playing an increasingly important role in the development of the entire national economy. Many experts believe that if my country's food industry wants to achieve substantial development, it must put the improvement of food safety in an important position. Improving the level of anti-corrosion and fresh-keeping technology and widely and rationally applying preservatives are important guarantees for strengthening food safety. The development of the modern food industry is inseparable from the escort of preservatives. Therefore, the application of food preservatives plays a decisive role in the development of the entire food industry and even the development of our national economy. However, with the gradual improvement of people's...

Claims

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Application Information

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IPC IPC(8): A23L3/3472
CPCA23L3/3472
Inventor 郭舒洋高玉刚
Owner 郭舒洋
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