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Plant material adsorbent for reducing cadmium content of tobacco extracting liquid and application of plant material adsorbent

A plant material and extraction technology, which is applied in the fields of tobacco, application, and tobacco treatment, can solve the problems of incorporation, complicated process, and high cost, and achieve the effects of wide distribution, high removal rate, and low cost

Active Publication Date: 2013-11-13
ZHENGZHOU TOBACCO RES INST OF CNTC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the above-mentioned methods, there are problems such as high cost, complicated process, or the possibility of mixing non-plant-derived components into the tobacco extract to varying degrees.

Method used

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  • Plant material adsorbent for reducing cadmium content of tobacco extracting liquid and application of plant material adsorbent

Examples

Experimental program
Comparison scheme
Effect test

experiment example 1

[0022] Preparation of tobacco extract: Select 2 samples of tobacco powder in the middle part of flue-cured tobacco leaves, code-named A and B, weigh 1.0 g of tobacco powder respectively, put them into a 50 ml centrifuge tube, add 20 ml of water, place on a shaker at 200 rpm Shake for 2 hours, filter with a nylon filter membrane (above 150 mesh) with a pore size of less than 100 microns, and the filtrate is the tobacco extract.

[0023] Preparation of adsorbent: Grind Pokeweed root system, take 10 g of the part with a particle size between 0.1 mm and 0.3 mm (that is, the part that passes through a 40-mesh nylon sieve but cannot pass through a 150-mesh nylon sieve), add Shake 250 ml of 0.1 mol / L hydrochloric acid for 2 hours, filter through a 150-mesh nylon sieve, and then wash the modified Pokeweed root particles with deionized water for 3 times. Drying is ready-to-use adsorbent.

[0024] Take 10 ml of tobacco extracts from tobacco powder samples A and B respectively, add 0.5 ...

experiment example 2

[0026] Preparation of tobacco extract: select 3 samples of tobacco powder in the middle of the flue-cured tobacco leaves, code-named C, D and E, weigh 0.2 g of tobacco powder respectively, put them into a 50 ml centrifuge tube, add 20 ml of water, and place on a shaker for 200 Vibrate at rpm for 2 hours, filter with a nylon filter membrane (above 150 mesh) with a pore size of less than 0.1 mm, and the filtrate is the tobacco extract.

[0027] Preparation of adsorbent: Grind Pokeweed root system, take 10 g of the part with a particle size between 0.1 mm and 0.3 mm (that is, the part that passes through a 40-mesh nylon sieve but cannot pass through a 150-mesh nylon sieve), add Shake 500 ml of 0.05 mol / L nitric acid for 2 hours, filter with a 150-mesh nylon sieve, and then wash the modified Pokeweed root particles with deionized water for 3 times. Drying is ready-to-use adsorbent.

[0028] Take 15 ml of tobacco extracts from tobacco powder samples C, D, and E, add 0.2 g of adsor...

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Abstract

The invention relates to a plant material adsorbent for reducing the cadmium content of tobacco extracting liquid. The plant material adsorbent is prepared by adopting the steps: crushing root systems of pokeberry serving as raw materials; soaking the crushed materials into diluted acid and performing modification treatment; and filtering and then washing with deionized water to finally obtain the plant material adsorbent. The tobacco extracting liquid with the reduced cadmium content is obtained by adding the plant material adsorbent into the tobacco extracting liquid, adsorbing, and filtering and removing the plant material adsorbent. The plant material adsorbent has the advantages that the root systems of the modified cadmium hyperaccumulator plants, namely, pokeberry are used as the adsorbent, the cadmium content in the root systems of the pokeberry can reach 2 percent, the pokeberry has a large number of cadmium adsorption sites, and the adsorption sites of heavy metal of the pokeberry can be released through modification by diluted acid; the modified plant material is added into the tobacco extracting liquid and can adsorb the cadmium ions in the tobacco extracting liquid, and the possibility of adding non-plant components into the tobacco extracting liquid is avoided. The plant material adsorbent is simple in treatment process, easy to operate, low in cost and reusable.

Description

[0001] technical field [0002] The invention relates to the technical field of reducing cadmium content in tobacco extract, in particular to a plant material adsorbent for reducing cadmium content in tobacco extract and application thereof. Background technique [0003] Tobacco extract is a liquid obtained by extracting water-soluble substances in tobacco raw materials such as tobacco leaves, tobacco stems, and tobacco powder into water through appropriate technological measures. The tobacco extract can be used to produce reconstituted tobacco leaves after being concentrated. [0004] In recent years, with the development of cigarette harm and coke reduction technology, the blending rate of reconstituted tobacco leaves in high-end cigarettes has been continuously increasing, and has become an important cigarette raw material. [0005] During the consumption of cigarettes, heavy metals in shredded tobacco may migrate with smoke, so excessive heavy metal content in tobacco p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J20/00A24B15/24
Inventor 王爱国张艳玲张仕祥王建伟商慧文陈钊梁太波刘阳
Owner ZHENGZHOU TOBACCO RES INST OF CNTC
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