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Plant adsorbing material capable of reducing lead content of tree moss extract and application thereof

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

Active Publication Date: 2015-02-18
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 tree moss extract: crush the tree moss and pass it through a 100-mesh sieve, add 8 times the weight of water through the sieve, and heat and extract it for 2 hours (extraction temperature 90 ± 2 ℃) by conventional methods, and use 400 mesh after cooling Filter cloth filter. The filtrate is the tree moss extract.

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

[0018] Take 20 mL of tree moss extract, add 0.3 g of adsorbent, and shake on a shaker at 150 rpm for 1 h. After adsorption, filter the adsorbent with a 400-mesh filter cloth to obtain a tree moss extract that removes lead. After ICP-MS detection, the lead content of the t...

Embodiment 2

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

[0021] Preparation of centipede grass adsorption material: pulverize centipede grass leaves through a 100 mesh sieve, take 2 g of the part that passes through the sieve, add 90 mL of 2 mol / L dilute hydrochloric acid (or dilute acetic acid), stir mechanically for 4 h, filter with a 400 mesh filter cloth , The solid is washed 3 times with deionized water and dried to obtain the adsorbent material.

[0022] Take 20 mL of tree moss extract, add 0.5 g of adsorbent, shake on a shaker at 150 rpm for 1 h, after adsorption, filter the adsorbent with a 400 mesh filter cloth to obtain a tree moss extract with lead removal. After ICP-MS detection, the ...

Embodiment 3

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

[0025] Preparation of centipede grass adsorption material: pulverize centipede grass blades through a 100-mesh sieve, take 3g through the sieve, add 60 mL of 2 mol / L dilute nitric acid, mechanically stir for 12 h, filter with a 400-mesh filter cloth, and use up the solids Ionized water was washed 3 times and dried to obtain the adsorbent material.

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

[0027]

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PUM

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Abstract

The invention relates to a plant adsorbing material capable of reducing the lead content of a tree moss extract. The plant adsorbing material is characterized by being obtained through treatment, namely crushing, dilute acid soaking, filtration, ionized water washing, drying and the like by taking the leaves of ciliate desert-grass as raw materials. The lead content of the tree moss extract can be reduced by adding the plant adsorbing material to the tree moss extract for adsorption and then filtering to remove the plant adsorbing material. The plant adsorbing material disclosed by the invention has the advantages that the ciliate desert-grass is a heavy metal hyperaccumulator plant, has high adsorption effect on arsenic and lead and can release the adsorption site of a heavy metal contained in a material by being modified through dilute acid, the treated plant adsorbing material is capable of adsorbing lead ions contained in the tree moss extract by being added to the tree moss extract and the possibility of adding a non-plant source component to the tree moss extract is prevented. The plant adsorbing material disclosed by the invention has the advantages of low price of the used materials, easiness for operation of treatment means and obviousness in lead removal effect.

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 Applications(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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