Method for improving sensory quality of reconstituted tobacco and application

Abstract

The invention discloses a method for improving sensory quality of reconstituted tobacco and application. The method comprises the following steps: 1) washing tobacco stem raw materials with water; (2) the washed tobacco stems are subjected to primary stem steaming through a high-pressure stem steaming machine; (3) the tobacco stems subjected to primary stem steaming are subjected to defibering and defibering through a defibering machine to form stem shreds; (4) carrying out secondary stem steaming on the defibered stem shreds by using a high-pressure stem steaming machine; 5) mixing the cut stems subjected to secondary stem steaming with a tobacco powder raw material, adding hot water, extracting, and performing solid-liquid separation to obtain a solid matter and a liquid matter; (6) mixing the solid matter with wood pulp, pulping by adopting a pulping machine, and then adding calcium carbonate to prepare reconstituted tobacco pulp; 7) concentrating the liquid under reduced pressure to obtain a coating liquid; and (8) making the pulp into a substrate by using a fourdrinier, backfilling coating liquid, drying, and slitting to obtain the reconstituted tobacco. According to the method, the moistening time of the tobacco stems after water washing is shortened through primary stem steaming, part of sensory inapplicable components in the tobacco stems are removed through secondary stem steaming, the sensory quality of the tobacco stems is improved, and compared with reconstituted tobacco not manufactured through the method, the aroma quality, aroma amount, offensive odor and irritation of the reconstituted tobacco manufactured through the method are improved.

Description

Technical Field

[0001] The invention belongs to the technical field of tobacco, and in particular relates to a method for improving the sensory quality of reconstituted tobacco leaves and an application thereof. Background Art

[0002] Reconstituted tobacco, also known as tobacco flakes, homogenized tobacco or reconstructed tobacco, has the characteristics of high filling value, good combustion performance and low tar release. Using reconstituted tobacco to replace or partially replace traditional shredded tobacco in the preparation of cigarettes is one of the effective means to reduce tar and reduce the harm of cigarettes.

[0003] Since the raw materials used in the preparation of reconstituted tobacco are mainly low-quality waste tobacco raw materials, there are defects in sensory quality such as heavy odor and high irritation. It is necessary to add flavors and fragrances to modify and cover them, which affects the natural sense of the sensory quality of the reconstituted tobacco. Summary of the invention

[0004] The present invention provides a method and application for improving the sensory quality of reconstituted tobacco leaves in order to improve the sensory quality of reconstituted tobacco leaves.

[0005] In order to achieve the above object, the technical solution adopted by the present invention is as follows:

[0006] A method for improving the sensory quality of reconstituted tobacco leaves comprises the following steps:

[0007] 1) Washing the tobacco stem raw material with water, the moisture content of the tobacco stem before washing is 8-14%, and the moisture content of the tobacco stem after washing is 35-45%, the temperature of the stem washing water is 50-60° C., and the washing time is 30-60 seconds;

[0008] 2) steaming the washed tobacco stems in step 1) using a high-pressure stem steamer, wherein the equipment used for steaming the tobacco stems is an intermittent rotary stem steamer, using saturated steam for steaming the tobacco stems, the steaming time is 30 seconds to 10 minutes, the steaming temperature is 80 to 130° C., and the steaming pressure is 0.1 to 0.27 MPa;

[0009] 3) using a defibrillator to defibrate the tobacco stems steamed in step 2) into stem shreds;

[0010] 4) The shredded stems after the decomposition in step 3) are subjected to secondary steaming in a high-pressure steaming machine, and the pressure is quickly released after the steaming is completed. The equipment used for steaming the stems is an intermittent rotary steaming machine, saturated steam is used for steaming the stems, the steaming time is 1 min to 8 min, the steaming temperature is 100-130° C., and the steaming pressure is 0.1-0.27 MPa;

[0011] 5) mixing the steamed stems in step 4) with the tobacco residue, adding hot water for extraction and then separating the solid and the liquid to obtain a solid and a liquid;

[0012] 6) mixing the solids in step 5) with wood pulp, refining the pulp using a refiner, and then adding calcium carbonate to prepare a reconstituted tobacco slurry;

[0013] 7) Concentrating the liquid in step 5) under reduced pressure to obtain a coating solution;

[0014] 8) The slurry in step 6) is made into a base sheet using a fourdrinier paper machine, and the base sheet is backfilled with the coating liquid in step 7), and then dried and cut to obtain reconstituted tobacco leaves.

[0015] Preferably, in step 1), the moisture content of the tobacco stems before washing is 10-12%, and the moisture content of the tobacco stems after washing is 38-42%, the temperature of the stem washing water is 55° C., and the washing time is 45 seconds.

[0016] Preferably, in step 2), the steaming time is 1-5 min, the steaming temperature is 90-110° C., and the steaming pressure is 0.1-0.14 MPa.

[0017] More preferably, the steaming time is 3 min, the steaming temperature is 100° C., and the steaming pressure is 0.1 MPa.

[0018] Preferably, in step 3), the width of the shredded stems after being deflated is 1-2 mm.

[0019] Preferably, in step 4), the equipment used for steaming the stems is an intermittent rotary stem steamer, saturated steam is used for steaming the stems, the steaming time is 2 min-6 min, the steaming temperature is 110-120° C., the steaming pressure is 0.14-0.2 MPa, and the pressure release time is less than 30 s;

[0020] More preferably, the stem steaming time is 4 minutes, the stem steaming temperature is 115° C., the stem steaming pressure is 0.16 MPa, and the pressure release time is less than 10 seconds.

[0021] The above method for improving the sensory quality of reconstituted tobacco.

[0022] The above method and application of improving the sensory quality of reconstituted tobacco.

[0023] The beneficial effects of the present invention are:

[0024] 1. The present invention uses water washing to increase the moisture content and then steams the tobacco stems once, which shortens the time for the tobacco stems to regain moisture and penetrate, thereby improving production efficiency and reducing equipment waiting time.

[0025] 2. The present invention adopts secondary steaming of the tobacco stems after defibration, and the secondary steaming adopts high temperature and high pressure steaming method, and the pressure is released by rapid explosion after steaming, which can not only make the tobacco stems expand quickly and reduce the combination between fibers in the tobacco stems, which is convenient for subsequent extraction and pulping, but also make the sensory unsuitable components in the tobacco stems such as lignin partially decompose and discharge, reduce the impurities brought by the tobacco stems to the reconstituted tobacco leaves, and improve the sensory quality of the reconstituted tobacco leaves. DETAILED DESCRIPTION

[0026] It should be noted that the following detailed descriptions are illustrative and are intended to provide further explanation of the present application. Unless otherwise specified, all technical and scientific terms used herein have the same meanings as those commonly understood by those skilled in the art to which the present application belongs.

[0027] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0028] Example 1

[0029] 1) Washing the tobacco stem raw material with water, the moisture content of the tobacco stem before washing is 12%, the moisture content of the tobacco stem after washing is 40%, the temperature of the stem washing water is 55° C., and the washing time is 30 seconds;

[0030] 2) steaming the washed tobacco stems in step 1) using a high-pressure stem steamer, wherein the equipment used for steaming the tobacco stems is an intermittent rotary stem steamer, using saturated steam for steaming the tobacco stems, the steaming time is 3 minutes, the steaming temperature is 100° C., and the steaming pressure is 0.1 MPa;

[0031] 3) using a defibrator to defibrate the tobacco stems steamed in step 2) into stem shreds with a width of 1.5 mm;

[0032] 4) The shredded stems after the decomposition in step 3) are subjected to secondary steaming in a high-pressure steaming machine, and the pressure is quickly released after the steaming is completed. The equipment used for steaming the stems is an intermittent rotary steaming machine, saturated steam is used for steaming the stems, the steaming time is 4 minutes, the steaming temperature is 120° C., and the steaming pressure is 0.2 MPa;

[0033] 5) mixing the steamed stems in step 4) with the tobacco powder in a mass ratio of 1:1, adding hot water for extraction and then separating the solid and the liquid to obtain a solid and a liquid;

[0034] 6) mixing the solids in step 5) with wood pulp, refining the pulp using a refiner, and then adding calcium carbonate to prepare a reconstituted tobacco slurry;

[0035] 7) Concentrating the liquid in step 5) under reduced pressure to obtain a coating solution;

[0036] 8) The slurry in step 6) is made into a base sheet using a fourdrinier paper machine, and the base sheet is backfilled with the coating liquid in step 7), and then dried and cut to obtain reconstituted tobacco leaves.

[0037] Comparative Example 1

[0038] The difference from Example 1 is that in step 1), the tobacco stems are washed and stored for 3 hours, then the tobacco stems are defibrated into shredded stems with a width of 1.5 mm using a defibrator in step 3), and then steps 5) to 8) are performed in sequence, without using the stem steaming process in steps 2) and 4).

[0039] Comparative evaluation

[0040] Table 1 Difference in moisture content of inner and outer layers of tobacco stems

[0041] serial number Inner layer (%) Outer layer (%) Difference (%) Blank sample (tobacco stems after washing) 42 28 14 Example 1 (Tobacco stems after one-time steaming) 40 38 2 Comparative Example 1 (tobacco stems after storage) 41 38 3

[0042] From the data in Table 1, it can be seen that the tobacco stems are moistened after one steaming and the same effect as the stored stems is achieved.

[0043] Table 2 Comparative evaluation of sensory quality

[0044]

[0045] It can be seen from the data in Table 2 that after the reconstituted tobacco is prepared by the present invention, the aroma quality, aroma quantity, impurities and irritation of the reconstituted tobacco are improved, and the sensory score is higher.

Claims

1. A method for improving the sensory quality of reconstituted tobacco and its application, comprising the following steps: 1) Washing the tobacco stem raw material with water, the moisture content of the tobacco stem before washing is 8-14%, and the moisture content of the tobacco stem after washing is 35-45%, the temperature of the stem washing water is 50-60° C., and the washing time is 30-60 seconds; 2) steaming the washed tobacco stems in step 1) using a high-pressure stem steamer, wherein the equipment used for steaming the tobacco stems is an intermittent rotary stem steamer, using saturated steam for steaming the tobacco stems, the steaming time is 30 seconds to 10 minutes, the steaming temperature is 80 to 130° C., and the steaming pressure is 0.1 to 0.27 MPa; 3) using a defibrillator to defibrate the tobacco stems steamed in step 2) into stem shreds; 4) The shredded stems after the decomposition in step 3) are subjected to secondary steaming in a high-pressure steaming machine, and the pressure is quickly released after the steaming is completed. The equipment used for steaming the stems is an intermittent rotary steaming machine, saturated steam is used for steaming the stems, the steaming time is 1 min to 8 min, the steaming temperature is 100-130° C., and the steaming pressure is 0.1-0.27 MPa; 5) mixing the steamed stems in step 4) with the tobacco residue, adding hot water for extraction and then separating the solid and the liquid to obtain a solid and a liquid; 6) mixing the solids in step 5) with wood pulp, refining the pulp using a refiner, and then adding calcium carbonate to prepare a reconstituted tobacco slurry; 7) Concentrating the liquid in step 5) under reduced pressure to obtain a coating solution; 8) The slurry in step 6) is made into a base sheet using a fourdrinier paper machine, and the base sheet is backfilled with the coating liquid in step 7), and then dried and cut to obtain reconstituted tobacco leaves.

2. The method for improving the organoleptic quality of reconstituted tobacco according to claim 1, characterized in that: In step 1), the moisture content of the tobacco stems before washing is 10-12%, and the moisture content of the tobacco stems after washing is 38-42%. The temperature of the stem washing water is 55° C., and the washing time is 45 seconds.

3. The method for improving the organoleptic quality of reconstituted tobacco according to claim 1, characterized in that: In step 2), the steaming time is 1-5 minutes, the steaming temperature is 90-110° C., and the steaming pressure is 0.1-0.14 MPa. Preferably, the steaming time is 3 minutes, the steaming temperature is 100° C., and the steaming pressure is 0.1 MPa.

4. The method for improving the organoleptic quality of reconstituted tobacco according to claim 1, characterized in that: In step 3), the width of the shredded stems after being loosened is 1-2 mm.

5. The method for improving the organoleptic quality of reconstituted tobacco according to claim 1, characterized in that: In step 4), the equipment used for steaming the stems is an intermittent rotary stem steamer, saturated steam is used for steaming the stems, the steaming time is 2min-6min, the steaming temperature is 110-120°C, the steaming pressure is 0.14-0.2MPa, and the pressure release time is less than 30s; Preferably, the stem steaming time is 4 minutes, the stem steaming temperature is 115° C., the stem steaming pressure is 0.16 MPa, and the pressure release time is less than 10 seconds.

6. The method for improving the sensory quality of reconstituted tobacco according to any one of claims 1 to 5.

7. The method for improving the sensory quality of reconstituted tobacco leaves as claimed in claim 6 and its application.

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