A method for preparing plant powder coated particles and its application in cigarette filter rods

Abstract

The application discloses a preparation method of plant powder coated particles and application of the plant powder coated particles in a cigarette filter tip, and comprises the following steps: preparing a coating solution; adopting a spraying method to coat the prepared coating solution to the surface of core material particles; air-drying at room temperature, balancing moisture, and screening to obtain the plant powder coated particles. The plant powder coated particles are added into a composite filter tip, and cigarette sensory evaluation is carried out. All the plant powder coated particles can well show plant aroma characteristics.

Description

Technical Field

[0001] This invention relates to the field of tobacco technology, specifically to a method for preparing plant powder-coated particles and their application in cigarette filter rods. Background Technology

[0002] Existing methods for preparing tobacco plant pellets include three types: Type A, mixing and granulating plant powder with excipients; Type B, spraying / fluidized bed granulation of plant powder and binder; and Type C, directly preparing pellets by pulverizing plants and controlling the mesh size through sieving. In Type A and Type B pellets (20-60 mesh), the aroma-producing plant powder is partially coated with excipients within the pellets; Type C pellets (20-80 mesh) are obtained by direct pulverization and sieving, resulting in larger pellets. All three types of pellets are not conducive to the release of aroma components from the plants. Summary of the Invention

[0003] The purpose of this invention is to provide a method for preparing plant powder coated particles and its application in cigarette filter rods, in order to solve the technical problems existing in the background art.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A method for preparing plant powder coated particles includes the following steps: preparing a coating solution; coating the core material particles with the prepared coating solution using a spray method; air-drying at room temperature, balancing the moisture content, and sieving to obtain plant powder coated particles.

[0006] In some embodiments, the step of preparing the coating solution is as follows: uniformly dispersing the coating material, plasticizer, talc, and plant powder in water and ethanol.

[0007] In some embodiments, the coating material includes one of hydroxypropyl methylcellulose (HPMC), hydroxyethyl cellulose (HEC), or hydroxypropyl cellulose (HPC).

[0008] In some embodiments, the plasticizer includes one of polyethylene glycol, glycerol, propylene glycol, glyceryl triacetate, or triethyl citrate.

[0009] In some embodiments, the natural core material particles are made from crushed tobacco stems, corn cobs, sugarcane bagasse, or rice husks, and then screened to a mesh size of 30-80.

[0010] In some embodiments, the proportions of the coating material, plasticizer, talc, plant powder and ethanol are respectively: (0.5-2):100, (0.03-0.08):100, (0.05-0.2):100, and (5-15):100.

[0011] In some embodiments, the moisture content is balanced to 6-12%, and the mixture is sieved through a 20-80 mesh to obtain plant powder coated particles.

[0012] This embodiment also provides the application of plant powder coated particles in cigarette filter rods. Based on any of the plant powder coated particles prepared by the method described, 20mg-200mg of particles are added to the binary composite filter rod for cigarette sensory evaluation.

[0013] The method for preparing plant powder-coated particles disclosed in this application and its application in cigarette filter rods may bring beneficial effects including, but not limited to:

[0014] The plant powder coated particles prepared by the coating technology used in this invention can use finer plant powder (100-300 mesh) to coat the natural core material particles, increasing the specific surface area, improving the utilization rate of plant powder, and facilitating the full release of aroma components from the plant powder. Detailed Implementation

[0015] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0016] Conversely, this application covers any substitutions, modifications, equivalent methods, and schemes made within the spirit and scope of this application as defined in the claims. Furthermore, to provide the public with a better understanding of this application, certain specific details are described in detail below. However, this application can be fully understood by those skilled in the art even without these detailed descriptions.

[0017] The following will provide a detailed description of a method for preparing plant powder-coated particles according to embodiments of this application and its application in cigarette filter rods. It is worth noting that the following embodiments are merely illustrative of this application and do not constitute a limitation thereof.

[0018] The raw materials used include loquat fruit powder (100-300 mesh), Zimbabwean flue-cured tobacco powder, Yunnan flue-cured tobacco powder, Henan flue-cured tobacco powder, Sichuan Liangshan flue-cured tobacco powder, lemon peel powder, platycodon root powder, and kudzu root powder. The following are examples of the preparation of loquat fruit granules, Zimbabwean flue-cured tobacco granules, Yunnan flue-cured tobacco granules, lemon peel granules, and platycodon root granules.

[0019] Example 1

[0020] Prepare 1 kg of sugarcane bagasse granules (30-80 mesh). Prepare the coating solution: Solution A, disperse 8 g HPMC, 5 g propylene glycol, and 1 g talc in 400 g ethanol, add 300 g water, and slowly add 100 g loquat fruit powder (100-300 mesh) while stirring to ensure even dispersion. Apply the coating material to the surface of the sugarcane bagasse granules using spray technology. Air dry at room temperature, equilibrate the moisture content to 6-12%, and sieve the loquat fruit granules to 20-80 mesh. Add 100 mg of loquat fruit granules to the binary composite filter rod and conduct sensory evaluation of the cigarette.

[0021] Example 2

[0022] Prepare 1 kg of tobacco stem granules (30-80 mesh). Prepare the coating solution: Disperse 10 g HPMC, 5 g propylene glycol, 1 g talc, and 100 g Zimbabwean flue-cured tobacco powder (200-300 mesh) in 500 g ethanol while stirring to ensure even dispersion. Add 200 g water. Apply the coating material to the surface of the tobacco stem granules using a spray coating technique. Air dry at room temperature, balancing the moisture content to 6-12%, and sieve the mixture into 20-80 mesh plant particles. Add 100 mg of Zimbabwean tobacco powder to the binary composite filter rod and conduct a sensory evaluation of the cigarette.

[0023] Example 3

[0024] Prepare 1 kg of tobacco stem granules (30-80 mesh). Prepare the coating solution: Disperse 10 g HPMC, 5 g propylene glycol, 1 g talc, and 100 g Yunnan flue-cured tobacco powder (200-300 mesh) in 500 g ethanol while stirring to ensure even dispersion. Add 200 g water. Apply the coating material to the surface of the tobacco stem granules using a spray coating technique. Air dry at room temperature until the moisture content reaches 6-12%, then sieve the mixture into 20-80 mesh plant particles. Add 100 mg of Yunnan flue-cured tobacco granules to a binary composite filter rod and conduct a sensory evaluation of the cigarette.

[0025] Example 4

[0026] Prepare 1 kg of bagasse granules (30-80 mesh). Prepare the coating solution: Disperse 10 g HPMC, 5 g propylene glycol, 1 g talc, and 100 g lemon peel powder (200-300 mesh) in 500 g ethanol while stirring to ensure even dispersion. Add 200 g water. Apply the coating material to the surface of the bagasse granules using a spray coating technique. Air dry at room temperature, equilibrate the moisture content to 6-12%, and sieve the mixture into 20-80 mesh plant particles. Add 100 mg of lemon peel particles to the binary composite filter rod and conduct a sensory evaluation of the cigarette.

[0027] Example 5

[0028] Prepare 1 kg of sugarcane bagasse granules (30-80 mesh). Prepare the coating solution: Disperse 10 g HPMC, 5 g propylene glycol, 1 g talc, and 100 g bellflower root powder (200-300 mesh) in 500 g ethanol while stirring to ensure even dispersion. Add 200 g water. Apply the coating material to the surface of the sugarcane bagasse granules using a spray coating technique. Air dry at room temperature, equilibrate the moisture content to 6-12%, and sieve the mixture into 20-80 mesh plant particles. Add 100 mg of bellflower root granules to the binary composite filter rod and conduct a sensory evaluation of the cigarette.

[0029] The specific methods refer to the "General Evaluation Method for Aroma Quality of Tobacco Flavorings (YC / T 145.6)" and the "General Evaluation Method for Flavor Quality of Tobacco Flavorings (YC / T 145.8)" for evaluation, including evaluation indicators such as aroma, added aroma, added flavor style, added aroma, added cigarette aroma, and added flavor taste.

[0030] Plant particles were added to the binary composite filter rod, and sensory evaluation of the cigarettes was conducted. All plant particles exhibited good plant aroma characteristics.

[0031] The sensory evaluations of each embodiment are shown in the table below:

[0032]

[0033] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A method for preparing plant powder coated particles, characterized in that, Includes the following steps: The steps for preparing the coating solution are as follows: disperse the coating material, plasticizer, talc powder, and plant powder in an appropriate amount of water and ethanol; The prepared coating solution is applied to the surface of the natural core material particles using a spray method. Air dry at room temperature, balance the moisture content, and sieve to obtain plant powder coated granules; The plasticizer includes one of polyethylene glycol, glycerol, propylene glycol, glyceryl triacetate, or triethyl citrate; The natural core material particles are made from tobacco stems, corn cobs, sugarcane bagasse, or rice husks, which are then crushed and screened to a mesh size of 30-80. The proportions of the coating material, plasticizer, talc, plant powder and ethanol are respectively: (0.5-2):100, (0.03-0.08):100, (0.05-0.2):100, and (5-15):100; Balance the moisture content to 6-12%, and sieve through a 20-80 mesh to obtain plant powder coated granules.

2. The method for preparing plant powder coated particles according to claim 1, characterized in that, The coating material includes one of hydroxypropyl methylcellulose, hydroxyethyl cellulose, or hydroxypropyl cellulose.

3. The application of plant powder-coated particles in cigarette filter rods, characterized in that, The plant powder coated particles prepared according to the method of claim 1 or 2 are added to the binary composite filter rod at a concentration of 20mg-200mg per cigarette for sensory evaluation of the cigarette.

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