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

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

technical field

[0001] 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

[0002] 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.

[0003] 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.

[0004] During the consumption of cigarettes, heavy metals in shredded tobacco may migrate with smoke, so excessive heavy metal content in tobacco products m...

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