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A plant adsorption material capable of reducing lead content in tree moss extract and its application

A tree moss extract, plant adsorption technology, applied in the direction of separation by moving adsorbents, other chemical processes, chemical instruments and methods, etc., can solve the problems of complex process, high cost, affecting the content of spices or active ingredients of traditional Chinese medicine, etc. Achieving the effect of wide growth range, low cost and strong adsorption capacity

Active Publication Date: 2016-08-17
ZHENGZHOU TOBACCO RES INST OF CNTC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, most of the above methods have problems of high cost, complicated process, or may affect the content of spices or active ingredients of traditional Chinese medicine.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] The preparation method of the moss extract: crush the moss and pass through a 100-mesh sieve, take the part that passes through the sieve and add 8 times the weight of water, heat and extract for 2 hours in a conventional method (extraction temperature 90 ± 2 ℃), and use a 400-mesh sieve after cooling. filter cloth filter. The filtrate is the tree moss extract.

[0017] Preparation of centipede grass adsorption material: crush centipede grass leaves through a 100-mesh sieve, take 3 g of the part that passed through the screen, add 60 mL 2 mol / L dilute sulfuric acid (or dilute nitric acid), stir mechanically for 12 h, and filter with a 400-mesh filter cloth , the solid was washed three times with deionized water, and dried to obtain the adsorption material.

[0018] Take 20 mL of tree moss extract, add 0.3 g of adsorbent material, and shake on a shaker at 150 rpm for 1 h. After adsorption, filter the adsorbent material with a 400-mesh filter cloth to obtain lead-free tr...

Embodiment 2

[0020] The preparation method of the moss extract: crush the moss and pass through a 100-mesh sieve, take the part that passes through the sieve and add 8 times the weight of water, heat and extract for 2 hours in a conventional method (extraction temperature 90 ± 2 ℃), and use a 400-mesh sieve after cooling. Filter through a sieve. The filtrate is the tree moss extract.

[0021] Preparation of centipede grass adsorption material: crush centipede grass leaves through a 100-mesh sieve, take 2 g of the part that passed through the screen, add 90 mL 2 mol / L dilute hydrochloric acid (or dilute acetic acid), stir mechanically for 4 h, and filter with a 400-mesh filter cloth , the solid was washed three times with deionized water, and dried to obtain the adsorption material.

[0022] Take 20 mL of tree moss extract, add 0.5 g of adsorption material, and shake it on a shaker at 150 rpm for 1 h. After adsorption, use a 400-mesh filter cloth to filter out the adsorption material to ob...

Embodiment 3

[0024] Take commercially available tree moss absolute oil as an example.

[0025] Preparation of centipede grass adsorption material: crush centipede grass leaves through a 100-mesh sieve, take 3 g of the part that passed through the screen, add 60 mL of 2 mol / L dilute nitric acid, stir mechanically for 12 h, filter with a 400-mesh filter cloth, and use up the solids The adsorbent material was obtained by washing with deionized water for 3 times and drying.

[0026] Take 30 mL of commercially available tree moss absolute, add 1 g of adsorbent material, and shake on a shaker at 150 rpm for 2 h. After adsorption, filter the adsorbent material with a 400-mesh filter cloth to obtain lead-free tree moss absolute oil. . According to the ICP-MS detection, the lead content before and after adsorption of tree moss absolute was 830 μg / Kg and 190 μg / Kg respectively, and the removal rate was 77%.

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Abstract

A plant adsorption material capable of reducing the lead content in tree moss extracts, characterized in that: the leaves of centipede grass are used as raw materials, and the plant adsorption material is obtained by crushing, soaking in dilute acid, filtering, washing with ionized water, drying, etc. . The lead content in the tree moss extract can be reduced by adding the plant adsorption material into the tree moss extract for adsorption, and then filtering and removing it. The advantages of the present invention are: Centipede Grass is a heavy metal hyperaccumulation plant, which has a strong adsorption effect on arsenic and lead, and can release the adsorption sites of heavy metals in the material through dilute acid modification; The plant material added to the tree moss extract can absorb lead ions therein, and the possibility of adding non-plant source components to the tree moss extract is eliminated. The material used in the invention is cheap, the treatment means is easy to operate, and the effect of removing lead is obvious.

Description

technical field [0001] The invention belongs to the heavy metal treatment technology of natural spices for tobacco, and in particular relates to a plant adsorption material capable of reducing the lead content in tree moss extract and its application. Background technique [0002] Tree moss, also known as cluster tree flowers, tree cauliflower, epiphytic lichens, is mostly found on pine, fir, oak, spruce or fir trees, and has a unique natural green fragrance and strong resinous smell of liverwort. At present, tree moss extract is widely used in daily chemicals, food, and tobacco flavors. More and more tobacco companies use tree moss to give cigarette products a unique aroma style. [0003] During the smoking process of cigarettes, the heavy metals in tobacco essence will migrate with the smoke, and if the content is high, it will endanger the health of smokers. Due to the simple structure and strong adsorption capacity of epiphytic bryophytes such as tree moss, they are ver...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J20/24B01J20/30B01D15/02
CPCB01D15/02B01J20/24B01J20/30B01J2220/485
Inventor 杨伟平徐秀娟霍现宽何保江张文娟屈展胡军姬凌波张建勋
Owner ZHENGZHOU TOBACCO RES INST OF CNTC
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