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A method for preparing adsorbent by modifying tea by-products from Hansenula microorganisms

A technology of microbial modification and Hansenula yeast is applied in the field of tea by-product modification, which can solve the problems of destroying the aroma of tea leaves, and achieve the effect of improving adsorption performance and decreasing the range significantly.

Inactive Publication Date: 2017-04-26
FUJIAN ACAD OF FORESTRY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the adsorption performance of tea is improved through carbonization and chemical modification, it destroys the aroma of tea itself.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] broken:

[0028] Crush tea by-products into tea powder with a particle size of 0.075mm to 2.0mm;

[0029] Ingredients:

[0030] Mix the crushed tea powder, Xuanwei Hansenula-Chinese Hansenula mixture and starch at a weight ratio of 100:1 to 2:20 to form a mixture; the Xuanwei Hansenula-Chinese Hansenula mixture is The weight ratio is 25:85 Xuanwei Hansenula and Chinese Hansenula are mixed.

[0031] Knead and shape:

[0032] Knead the mixture until the materials are evenly mixed and form a certain viscous binder, then shape the binder into a sheet, round or cylindrical shape;

[0033] Cultivation modification:

[0034] The formed raw material is cultivated under the following conditions: the temperature is 20-40° C., and the time is 3-10 days to prepare the adsorbent.

Embodiment 2

[0036] broken:

[0037] Crush tea by-products into tea powder with a particle size of 0.075mm to 2.0mm;

[0038] Ingredients:

[0039] Mix the crushed tea powder, Xuanwei Hansenula-Chinese Hansenula mixture and starch at a weight ratio of 100:1 to 2:20 to form a mixture; the Xuanwei Hansenula-Chinese Hansenula mixture is The weight ratio is 40:60 Xuanwei Hansen's yeast and Chinese Hansen's yeast are mixed;

[0040] Knead and shape:

[0041] Knead the mixture until the materials are evenly mixed and form a certain viscous binder, then shape the binder into a sheet, round or cylindrical shape;

[0042] Cultivation modification:

[0043] The formed raw material is cultivated under the following conditions: the temperature is 20-40° C., and the time is 3-10 days to prepare the adsorbent.

Embodiment 3

[0045] broken:

[0046] Crush tea by-products into tea powder with a particle size of 0.075mm to 2.0mm;

[0047] Ingredients:

[0048] Mix the crushed tea powder, Xuanwei Hansen yeast and starch at a weight ratio of 100:3:40 to form a mixture;

[0049] Knead and shape:

[0050] Knead the mixture until the materials are evenly mixed and form a certain viscous binder, then shape the binder into a sheet, round or cylindrical shape;

[0051] Cultivation modification:

[0052] The formed raw material is cultivated under the following conditions: the temperature is 20-40° C., and the time is 3-10 days to prepare the adsorbent.

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PUM

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Abstract

The invention discloses a method for preparing an adsorbent by modifying a tea by-product with hansenula microbes. The method comprises the following steps: crushing the tea by-product, mixing with the hansenula microbes, cultivating and modifying, and thus obtaining the adsorbent. The adsorbent is used for adsorbing formaldehyde, benzene and methylbenzene. In the cultivating process, the hansenula microbes grow to ferment cellulose, pectin and terpene in tea powder, oxidation, degradation, decomposition and cracking are generated, therefore the surface chemical property and the pore structure of the tea by-product are modified, and the synchronous improvement of the chemical adsorption performance and the physical adsorption performance of the adsorbent is facilitated. Through determination, in the space with the adsorbent, the decent degree of formaldehyde, benzene and methylbenzene is obvious. Thus, the modification of the hansenula microbes improves the adsorption performance of the tea by-product.

Description

technical field [0001] The invention relates to the field of modification of tea by-products, in particular to a method for preparing an adsorbent by modifying tea by-products by microorganisms of the genus Hansenula. Background technique [0002] Tea is a large agricultural and forestry by-product in my country and plays an irreplaceable and fundamental role in the national economy. With the development of the tea industry, there will be a large amount of processing by-products such as young tea leaves, tea stems and tea powder. If these tea by-products cannot be comprehensively utilized, it will cause great resource waste and economic loss. The recycling of tea by-products can not only help adjust the structure of the tea industry, extend the tea industry chain, but also increase the income of tea farmers, solve the "three rural issues", and improve the enthusiasm of tea farmers and enterprises in planting, processing, and management, which is in line with helping farmers...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J20/24B01J20/30
CPCB01J20/24B01J2220/485
Inventor 陈涵林冠烽李建民常颖萃吴开金陈志江
Owner FUJIAN ACAD OF FORESTRY