Air-cured tobacco concentrated base material capable of enriching tobacco fragrance and increasing smoke concentration and preparation method of air-cured tobacco concentrated base material

Abstract

The invention provides the air-cured tobacco concentrated base material capable of enriching tobacco fragrance and increasing smoke concentration and the preparation method thereof, and solves the technical problems that tobacco products in the prior art have the quality defects of light tobacco smell, weakened fragrance, style change and the like after being subjected to tar reduction and harm reduction measures, and the smoking feeling of cigarettes is poor. The air-cured tobacco concentrated base material comprises the following components in percentage by mass: 20-30% of burley tobacco extract, 8-16% of burley tobacco refined substance, 4-8% of burley tobacco tincture and 46-68% of propylene glycol. The sum of the mass percentages of the raw materials is 100%. The air-cured tobacco concentrated base material disclosed by the invention is applied to mixed type cigarettes, and can effectively compensate tobacco fragrance, increase smoke concentration, improve taste and improve quality.

Description

Technical Field

[0001] The invention belongs to the technical field of tobacco, and particularly relates to a sun-dried tobacco concentrated base material capable of enriching tobacco aroma and increasing smoke concentration, and a preparation method thereof. Background Art

[0002] Low-harm tobacco products are becoming the trend of industry development, but after the tar reduction and harm reduction measures, the smoking experience of cigarettes is not as good as before, with quality defects such as lighter smoke, weaker aroma, and changed style. Therefore, how to prepare special flavor products to increase and improve smoke concentration and aroma, improve taste, and highlight style has become an urgent problem for cigarette workers to solve. Summary of the invention

[0003] In order to solve the technical problems existing in the prior art, the present invention provides a sun-dried tobacco concentrated base material which can enrich tobacco aroma and increase smoke concentration, and a preparation method thereof.

[0004] In order to achieve the above object, the technical solution adopted by the present invention is as follows:

[0005] The invention provides a sun-dried tobacco concentrated base material for enriching tobacco aroma and increasing smoke concentration, comprising the following components in percentage by mass: 20-30% of burley tobacco extract, 8-16% of burley tobacco refined product, 4-8% of burley tobacco tincture, and 46%-68% of propylene glycol; the sum of the percentages by mass of the raw materials is 100%.

[0006] Furthermore, the mass percentages of the components are: 23-26% of burley tobacco extract, 10-14% of burley tobacco refined product, 5-7% of burley tobacco tincture, and 53%-62% of propylene glycol; the sum of the mass percentages of the raw materials is 100%.

[0007] Furthermore, the mass percentages of the components are: 25% of burley tobacco extract, 12% of burley tobacco refined product, 6% of burley tobacco tincture, and 57% of propylene glycol; the sum of the mass percentages of the raw materials is 100%.

[0008] The method for preparing the concentrated air-dried tobacco base material for enriching tobacco aroma and increasing smoke concentration provided by the present invention comprises the following steps:

[0009] S1. preparing burley tobacco extract and burley tobacco tincture;

[0010] S2, preparing burley tobacco refined product;

[0011] S3. Blend the components according to the mass percentage, place in a constant temperature water bath at 50±2°C, stir and heat until the mixture is evenly mixed, and naturally cool to room temperature to obtain the sun-dried tobacco concentrated base material.

[0012] Furthermore, in step S1, the burley tobacco extract and burley tobacco tincture are prepared by solvent extraction, which specifically includes the following steps:

[0013] 1) extracting burley tobacco fragments with 6 to 8 times the weight of anhydrous ethanol at 50±5° C. by stirring for one time, filtering the filtrate to obtain the burley tobacco tincture, and collecting the filter residue for later use;

[0014] 2) The filter residue is extracted with 4 to 6 times its weight of water at 75±5°C for 2 times with stirring, each time for 0.5 to 1.5 hours, the extracts are combined, and concentrated under reduced pressure to a semi-fluid density of 1.060±0.010 to obtain a burley tobacco extract.

[0015] Furthermore, in step S2, the burley tobacco refined product is prepared by an extraction method, which specifically includes the following steps:

[0016] 3) extracting the burley tobacco fragments with 6 to 8 times the weight of 50% to 80% ethanol at 75±5°C by stirring and refluxing for 2 to 4 times, each time for 2 to 4 hours, filtering and combining the extracts, and concentrating under reduced pressure to a concentrated solution with a density of 1.060±0.010;

[0017] 4) adding 2% to 4% of fructose syrup and 5% to 10% of propylene glycol based on the absolute dry weight of the concentrated solution to the concentrated solution in step 3), stirring and reacting at 95±2° C. for 2 to 4 hours, and cooling to room temperature to obtain burley tobacco refined product;

[0018] The invention provides an application of a sun-dried tobacco concentrated base material prepared according to the above-mentioned preparation method in enriching tobacco aroma and increasing smoke concentration; the sun-dried tobacco concentrated base material is used as a tobacco flavoring in blended cigarettes, and the added amount of the sun-dried tobacco concentrated base material is 0.1-1.5% of the mass of cigarette shredded tobacco.

[0019] Based on the above technical solution, the embodiments of the present invention can at least produce the following technical effects:

[0020] The air-dried tobacco concentrated base material for enriching tobacco aroma and increasing smoke concentration and the preparation method thereof provided by the present invention have the following characteristics: the burley tobacco extract in the raw material can obviously increase the concentration of tobacco, and the smoke is thick; the burley tobacco refined product in the raw material has a pure aroma and a long-lasting charm; the burley tobacco tincture in the raw material has an elegant aroma and a natural texture; the burley tobacco extract, the burley tobacco refined product and the burley tobacco tincture in the raw material of the present invention interact and influence each other, and correspond to the tail aroma, the base aroma and the top aroma respectively, so that after the air-dried tobacco concentrated base material of the present invention is added into a mixed cigarette, the richness, texture and concentration of tobacco aroma can be improved, and the sweetness of the air-dried tobacco can be obviously increased, thereby improving the aroma and taste of the air-dried tobacco as a whole.

[0021] 2) The sun-dried tobacco concentrated base material with rich tobacco aroma and increased smoke concentration provided by the present invention and its preparation method, the burley tobacco raw material used in the preparation process is the leftover material of leaf beating and re-roasting, which belongs to the comprehensive recycling of waste and is of great significance to green ecology, and other raw materials are easily available and inexpensive, so that the preparation cost is low and it is easy to promote and apply. DETAILED DESCRIPTION

[0022] To make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be described in detail below. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other implementation methods obtained by ordinary technicians in this field without creative work belong to the scope of protection of the present invention.

[0023] 1. Preparation Example

[0024] 1. Raw materials:

[0025] The mass percentages of the components in Examples 1 to 4 are shown in Table 1 below:

[0026] Table 1 Ingredients of Example

[0027]

[0028]

[0029] 2. Preparation method:

[0030] Embodiment 1:

[0031] S1. Preparation of burley tobacco extract and burley tobacco tincture. The burley tobacco extract is prepared by solvent extraction, specifically comprising the following steps:

[0032] 1) extracting burley tobacco fragments with 6 times the weight of anhydrous ethanol at 50° C. by stirring once, filtering the filtrate to obtain burley tobacco tincture, and collecting the filter residue for later use;

[0033] 2) The filter residue is extracted with 4 times the weight of water at 75°C with stirring for 2 times, each time for 1.5 hours, the extracts are combined, and concentrated under reduced pressure to a semi-fluid density of 1.060±0.010 to obtain the burley tobacco extract.

[0034] S2. preparing a burley tobacco refined product, wherein the burley tobacco refined product is prepared by an extraction method, specifically:

[0035] 3) extracting the burley tobacco chips with 6 times the weight of 60% ethanol at 75°C with stirring and refluxing for 4 times, each time for 2 hours, filtering and combining the extracts, and concentrating under reduced pressure to a concentrated solution with a density of 1.060±0.010;

[0036] 4) adding 3% fructose syrup and 8% propylene glycol based on the absolute dry weight of the concentrated solution to the concentrated solution in step 3), stirring and reacting at 95° C. for 2 h, and cooling to room temperature to obtain burley tobacco refined product;

[0037] S3. Blend the components according to the mass percentage, place in a 45°C constant temperature water bath, stir and heat until the mixture is evenly mixed, and naturally cool to room temperature to obtain the sun-dried tobacco concentrated base material.

[0038] Embodiment 2:

[0039] S1. Preparation of burley tobacco extract and burley tobacco tincture. The burley tobacco extract is prepared by solvent extraction, specifically comprising the following steps:

[0040] 1) extracting burley tobacco fragments with 8 times the weight of anhydrous ethanol at 45° C. by stirring for one time, filtering the filtrate to obtain burley tobacco tincture, and collecting the filter residue for later use;

[0041] 2) The filter residue is extracted with 4 times the weight of water at 70°C with stirring for 2 times, each time for 1 hour, the extracts are combined, and concentrated under reduced pressure to a semi-fluid density of 1.060±0.010 to obtain a burley tobacco extract.

[0042] S2. preparing a burley tobacco refined product, wherein the burley tobacco refined product is prepared by an extraction method, specifically:

[0043] 3) extracting the burley tobacco chips with 6 times the weight of 50% ethanol at 78°C with stirring and refluxing for 4 times, each time for 2 hours, filtering and combining the extracts, and concentrating under reduced pressure to a concentrated solution with a density of 1.060±0.010;

[0044] 4) adding 3% fructose syrup and 5% propylene glycol based on the absolute dry weight of the concentrate to the concentrate in step 3), stirring and reacting at 93° C. for 2 h, and cooling to room temperature to obtain burley tobacco refined product;

[0045] S3. Blend the components according to the mass percentage, place in a 50°C constant temperature water bath, stir and heat until mixed evenly, and naturally cool to room temperature to obtain the sun-dried tobacco concentrated base material.

[0046] Embodiment 3:

[0047] S1. Preparation of burley tobacco extract and burley tobacco tincture. The burley tobacco extract is prepared by solvent extraction, specifically comprising the following steps:

[0048] 1) extracting burley tobacco fragments with 7 times the weight of anhydrous ethanol at 50° C. by stirring for one time, filtering the filtrate to obtain burley tobacco tincture, and collecting the filter residue for later use;

[0049] 2) The filter residue is extracted with 6 times the weight of water at 75°C for 2 times with stirring, each time for 0.5 h, the extracts are combined, and concentrated under reduced pressure to a semi-fluid density of 1.060±0.010 to obtain a burley tobacco extract.

[0050] S2. preparing a burley tobacco refined product, wherein the burley tobacco refined product is prepared by an extraction method, specifically:

[0051] 3) extracting the burley tobacco chips with 6 times the weight of 70% ethanol at 80°C with stirring and refluxing for 2 times, each time for 3 hours, filtering and combining the extracts, and concentrating under reduced pressure to a concentrated solution with a density of 1.060±0.010;

[0052] 4) adding 2% fructose syrup and 5% propylene glycol based on the absolute dry weight of the concentrate to the concentrate in step 3), stirring and reacting at 95±2° C. for 2 h, and cooling to room temperature to obtain burley tobacco refined product;

[0053] S3. Blend the components according to the mass percentage, place in a 50°C constant temperature water bath, stir and heat until mixed evenly, and naturally cool to room temperature to obtain the sun-dried tobacco concentrated base material.

[0054] Embodiment 4:

[0055] S1. Preparation of burley tobacco extract and burley tobacco tincture. The burley tobacco extract is prepared by solvent extraction, specifically comprising the following steps:

[0056] 1) extracting burley tobacco fragments with 6 times the weight of anhydrous ethanol at 50° C. by stirring once, filtering the filtrate to obtain burley tobacco tincture, and collecting the filter residue for later use;

[0057] 2) The filter residue is extracted with 4 times the weight of water at 75°C with stirring for 2 times, each time for 1.5 hours, the extracts are combined, and concentrated under reduced pressure to a semi-fluid density of 1.060±0.010 to obtain the burley tobacco extract.

[0058] S2. preparing a burley tobacco refined product, wherein the burley tobacco refined product is prepared by an extraction method, specifically:

[0059] 3) Extract the burley tobacco chips with 6 times the weight of 75% ethanol at 75°C for 3 times with stirring and refluxing, each time for 2 hours, filter and combine the extracts, and concentrate under reduced pressure to a concentrated solution with a density of 1.060±0.010;

[0060] 4) adding 4% fructose syrup and 10% propylene glycol based on the absolute dry weight of the concentrate to the concentrate in step 3), stirring and reacting at 95° C. for 4 h, and cooling to room temperature to obtain burley tobacco refined product;

[0061] S3. Blend the components according to the mass percentage, place in a 50°C constant temperature water bath, stir and heat until mixed evenly, and naturally cool to room temperature to obtain the sun-dried tobacco concentrated base material.

[0062] 2. Application Experiment Example:

[0063] The sun-dried tobacco concentrated base prepared in Examples 1-4 was added to blended cigarette shreds at a ratio of 0.1%, 0.3%, 0.5% and 0.8% of the mass of the cigarette shreds, respectively. A blank control group was set up at the same time. Then, cigarettes were prepared for smoking quality evaluation. The results are shown in Table 2 below.

[0064] Table 2 Effect of sun-dried tobacco concentrate base on the sensory quality of cigarettes

[0065] sample Evaluation results Example 1 The richness of the tobacco aroma is improved, the texture and concentration are improved, and the sweetness is significantly increased Example 2 The richness of the smoke aroma is improved, the sweetness of the smoke is increased, and the texture of the smoke is improved Example 3 The richness of the tobacco aroma is improved, the texture and concentration are improved, and the sweetness is significantly increased Example 4 The richness of the smoke aroma is improved, the sweetness of the smoke is increased, and the texture of the smoke is improved Blank control group Lack of aroma richness, smoke is bland

[0066] It can be seen from Table 2 that the sun-dried tobacco concentrated base materials in Examples 1 to 4 of the present invention are added to blended cigarettes to effectively compensate for tobacco aroma, increase smoke concentration, enhance taste and improve quality.

[0067] The above description is only a specific implementation mode of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A sun-dried tobacco concentrated base material for enriching tobacco aroma and increasing smoke concentration, characterized in that: The invention comprises the following components in percentage by mass: 20-30% of burley tobacco extract, 8-16% of burley tobacco refined product, 4-8% of burley tobacco tincture and 46-68% of propylene glycol; the sum of percentage by mass of each raw material is 100%.

2. The air-dried tobacco concentrated base material for enriching tobacco aroma and increasing smoke concentration according to claim 1, characterized in that: The mass percentages of the components are: 23-26% of burley tobacco extract, 10-14% of burley tobacco refined product, 5-7% of burley tobacco tincture, and 53%-62% of propylene glycol; the sum of the mass percentages of the raw materials is 100%.

3. The sun-dried tobacco concentrated base material for enriching tobacco aroma and increasing smoke concentration according to claim 1, characterized in that: The mass percentages of the components are: 25% of burley tobacco extract, 12% of burley tobacco refined product, 6% of burley tobacco tincture, and 57% of propylene glycol; the sum of the mass percentages of the raw materials is 100%.

4. The method for preparing the concentrated air-dried tobacco base material for enriching tobacco aroma and increasing smoke concentration according to any one of claims 1 to 3, characterized in that: The steps include: S1. preparing burley tobacco extract and burley tobacco tincture; S2, preparing burley tobacco refined product; S3. Blend the components according to the mass percentage, place in a constant temperature water bath at 50±2°C, stir and heat until the mixture is evenly mixed, and naturally cool to room temperature to obtain the sun-dried tobacco concentrated base material.

5. The air-dried tobacco concentrated base material for enriching tobacco aroma and increasing smoke concentration according to claim 4, characterized in that: In step S1, the burley tobacco extract and the burley tobacco tincture are prepared by solvent extraction, which specifically includes the following steps: 1) extracting burley tobacco fragments with 6 to 8 times the weight of anhydrous ethanol at 50±5° C. by stirring for one time, filtering the filtrate to obtain the burley tobacco tincture, and collecting the filter residue for later use; 2) The filter residue is extracted with 4 to 6 times its weight of water at 75±5°C for 2 times with stirring, each time for 0.5 to 1.5 hours, the extracts are combined, and concentrated under reduced pressure to a semi-fluid density of 1.060±0.010 to obtain a burley tobacco extract.

6. The air-dried tobacco concentrated base material for enriching tobacco aroma and increasing smoke concentration according to claim 4, characterized in that: In step S2, the burley tobacco refined product is prepared by an extraction method, which specifically includes the following steps: 3) extracting the burley tobacco fragments with 6 to 8 times the weight of 50% to 80% ethanol at 75±5°C with stirring and refluxing for 2 to 4 times, each time for 2 to 4 hours, filtering and combining the extracts, and concentrating under reduced pressure to a concentrated solution with a density of 1.060±0.010; 4) Add 2% to 4% of fructose syrup and 5% to 10% of propylene glycol based on the absolute dry weight of the concentrate to the concentrate in step 3), stir and react at 95±2° C. for 2 to 4 hours, and cool to room temperature to obtain burley tobacco refined product.

7. Use of the air-dried tobacco concentrated base material prepared according to the preparation method according to any one of claims 4 to 6 in enriching tobacco aroma and increasing smoke concentration.

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