WO2023221441A1 - 一种风味型再造烟叶的加工方法 - Google Patents

一种风味型再造烟叶的加工方法 Download PDF

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WO2023221441A1
WO2023221441A1 PCT/CN2022/133164 CN2022133164W WO2023221441A1 WO 2023221441 A1 WO2023221441 A1 WO 2023221441A1 CN 2022133164 W CN2022133164 W CN 2022133164W WO 2023221441 A1 WO2023221441 A1 WO 2023221441A1
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tobacco
processing method
powder
flavor
temperature
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PCT/CN2022/133164
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English (en)
French (fr)
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王昊
聂广军
杨俊鹏
张敦铁
陈丽舟
刘兴乐
庄虎
刘华臣
罗诚浩
朱峰
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湖北中烟工业有限责任公司
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Publication of WO2023221441A1 publication Critical patent/WO2023221441A1/zh

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    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24B—MANUFACTURE OR PREPARATION OF TOBACCO FOR SMOKING OR CHEWING; TOBACCO; SNUFF
    • A24B3/00—Preparing tobacco in the factory
    • A24B3/14—Forming reconstituted tobacco products, e.g. wrapper materials, sheets, imitation leaves, rods, cakes; Forms of such products
    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24B—MANUFACTURE OR PREPARATION OF TOBACCO FOR SMOKING OR CHEWING; TOBACCO; SNUFF
    • A24B3/00—Preparing tobacco in the factory
    • A24B3/12—Steaming, curing, or flavouring tobacco

Definitions

  • the present application relates to the technical field of heated cigarettes, and in particular to a processing method of flavored reconstituted tobacco leaves.
  • Heated cigarettes are a new type of cigarette that are heated rather than burned.
  • the general heating temperature is around 350°C.
  • aerosols such as glycerin and propylene glycol evaporate to form aerosols.
  • different volatile substances are heated to participate in the formation of aerosols, thus enriching the aroma and satisfying different consumption experiences.
  • the mainstream flavors of electric heated cigarettes mainly include tobacco flavor, mint flavor and fruit flavor.
  • mint, fruit and other flavored heated cigarettes are added with a higher proportion of low boiling point volatile flavor additives, usually in the tobacco matrix (reconstituted tobacco leaves) or filter rods. added in.
  • the prepared essence is mixed evenly with water, glycerin and other liquid additives and additives, and then stirred together with tobacco powder and solid additives, and is formed by rolling or casting, and then Drying, adjusting moisture, cutting or rolling to produce reconstituted tobacco leaf products, which are used for rolling heated cigarettes.
  • the general temperature is around 100°C.
  • volatile fragrance components especially low-boiling point substances, evaporate more, which not only causes waste of fragrance, consumption of process energy, but also affects After drying, the flavor is restored to the product quality of the tobacco leaves.
  • the condensed water with a low boiling point component on the lower surface of the material is evaporated by heat and enters into the interior of the reconstituted tobacco leaf slurry, while the condensed water with a high boiling point component on the upper surface of the reconstituted tobacco leaf slurry will not be evaporated and remains on the upper surface of the reconstituted tobacco leaf slurry; thus; Complete online aromatization of reconstituted tobacco leaf slurry with spices with high and low boiling point components.
  • the above-mentioned method of fractionated fragrance avoids the volatilization loss of low-boiling point components during the drying process, the complete fragrance as a whole requires secondary fractionation or grouping during blending, and the integrity of the fragrance will be potentially affected. .
  • the above-mentioned process causes the two-component flavors to be unevenly distributed in the reconstituted tobacco leaves, and the heat release efficiency is affected when smoking when heated.
  • the technical problem solved by this application is to provide a processing method for flavored reconstituted tobacco leaves.
  • This processing method results in low loss of low-boiling point volatile aroma substances, good product stability, and relatively stable release of aroma substances after heating.
  • this application provides a processing method for flavored reconstituted tobacco leaves, including the following steps:
  • Part of the tobacco raw material is expanded and then ground into powder to obtain tobacco powder; the tobacco powder and liquid flavor are dried and homogenized under reduced pressure at low temperature to obtain powdered flavor;
  • the remaining tobacco raw materials are crushed, mixed with solid additives and liquid additives, homogeneously formed, and then dried in multiple stages to obtain tobacco materials;
  • the powdered essence is sprayed onto the surface of the tobacco material from the low-temperature drying area to the post-processing stage, and then post-processed to obtain flavored reconstituted tobacco leaves.
  • the mass ratio of the part of the tobacco raw material and the remaining tobacco raw material is (10% to 25%): (75% to 90%).
  • the liquid flavor includes microcapsule additives, and the microcapsule additives are selected from one or more of modified starch, guar gum and sodium alginate.
  • the mass ratio of the tobacco powder, the liquid essence and the microcapsule additive is (75-95): (5-25): (1-2).
  • the low temperature is ⁇ 20°C.
  • the solid auxiliary agent is selected from one or two types of hydroxymethylcellulose and sodium alginate, and the liquid auxiliary agent includes an atomizing agent, cellulose and water.
  • the solid additive is 0.5-3.0wt% of the mixed materials
  • the atomizing agent is 10-25wt% of the mixed materials
  • the cellulose is 0.5-3.0wt% of the mixed materials. %.
  • the temperature of the multi-stage drying is less than 110°C, and the moisture content of the homogenized material is 25% to 65%.
  • the temperature in the low-temperature drying zone is not higher than the maximum thermal weight loss temperature of the powder essence.
  • the post-processing includes cutting and rolling in sequence.
  • This application provides a processing method for flavor-type reconstituted tobacco leaves, which changes the application method of liquid flavor of reconstituted tobacco leaves to powder application, and adjusts the application area from before the drying process to the low-temperature area during the drying process to the post-processing stage; thus enabling the production of reconstituted tobacco leaves.
  • the loss of low-boiling point volatile aroma substances is reduced, the energy consumption of the drying process is reduced, and the production cost of reconstituted tobacco leaves is reduced.
  • the original flavor of the tobacco is maintained during the drying process, and the baking aroma is maintained.
  • Figure 1 is a schematic diagram of the processing flow of flavored reconstituted tobacco leaves of the present invention
  • Figure 2 is a comparison chart of thermal weight loss between the mint-type reconstituted tobacco sample cigarettes processed in Example 1 of the present invention and the mint-type sample cigarettes processed by the control process.
  • the present invention introduces flavor solidification carriers and limits the flavor solidification carrier during the processing process of flavored reconstituted tobacco leaves.
  • the addition method reduces process losses, maintains the integrity of the essence, and improves the quality of the flavor-reconstructed tobacco leaves.
  • FIG. 1 The schematic diagram of the processing flow of flavor-type reconstituted tobacco leaves of the present application is shown in Figure 1.
  • the embodiment of the present invention discloses a processing method of flavor-type reconstituted tobacco leaves, which includes the following steps:
  • Part of the tobacco raw material is expanded and then ground into powder to obtain tobacco powder; the tobacco powder and liquid flavor are dried and homogenized under reduced pressure at low temperature to obtain powdered flavor;
  • the remaining tobacco raw materials are crushed, mixed with solid additives and liquid additives, homogeneously formed, and then dried in multiple stages to obtain tobacco materials;
  • the powdered essence is sprayed onto the surface of the tobacco material from the low-temperature drying area to the post-processing stage, and then post-processed to obtain flavored reconstituted tobacco leaves.
  • this application divides the tobacco raw materials into two parts.
  • One part of the tobacco raw materials is processed by the traditional tobacco expansion process to obtain expanded shredded tobacco, which is crushed to less than 150 mesh.
  • the essence is dried and homogenized under reduced pressure at low temperature to obtain powdered essence.
  • the tobacco raw materials may specifically include conventional tobacco raw materials such as tobacco leaves, fragments, and stems.
  • the content of the expanded cut tobacco is 8 to 10%.
  • the liquid flavor includes microcapsule additives, and the microcapsule additives are selected from one or more types of modified starch, guar gum and sodium alginate.
  • the mass ratio of the powder flavor, the liquid flavor and the microcapsule additive is (75 ⁇ 95): (5 ⁇ 25): (1 ⁇ 2).
  • the low temperature condition is less than 20°C.
  • the drying and homogenization under reduced pressure is an operation well known to those skilled in the art, and the present application has no special restrictions on this.
  • this application pulverizes another part of the tobacco raw material and mixes it with solid additives and liquid additives, then homogeneously shapes it, and then dries it in multiple stages to obtain the tobacco material. During this process, the tobacco raw material is crushed to less than 150 mesh.
  • the solid auxiliary agent is selected from one or both carboxymethyl cellulose and sodium alginate; the liquid auxiliary agent includes an atomizing agent, cellulose and water, wherein the atomizing agent is glycerin and propylene glycol. mixture.
  • the content of the solid additive is 0.5-3.0wt%
  • the content of the atomizing agent in the liquid additive is 10-25wt%
  • the content of the cellulose is 0.5 ⁇ 3.0wt%.
  • the moisture content of the homogenized material is 25% to 65%.
  • the homogeneous molding and the multi-stage drying are technical means well known to those skilled in the art, and will not be explained in detail here; in this application, the temperature of the multi-stage drying is less than 110°C, and more Specifically, the temperature of the multi-stage drying is less than 95°C.
  • the mass ratio of the part of the tobacco raw material and the remaining tobacco raw material is (10% to 25%): (75% to 90%).
  • the maximum thermal weight loss temperature of the powder flavor in the present invention is T1. From the drying low-temperature area to the post-processing stage, the powder flavor is evenly sprayed along the running direction of the tobacco material. If necessary, it can be sprayed multiple times or on both sides. After spraying Then the subsequent cutting or rolling is carried out to complete the production of flavor-type reconstituted tobacco leaves.
  • T1 The above temperature range and spraying powdered essence in a low-temperature drying area can effectively avoid the loss of low-boiling point volatile fragrance components.
  • flavor reconstituted tobacco leaves are stable. After heating, the release of flavor substances is relatively stable, and the integrity of different flavor components is retained;
  • the production environment is improved, and the impact on the odor of the production environment is reduced; the impact between the production of different flavor reconstituted tobacco leaves is reduced, and the process maintenance requirements are reduced;
  • the original flavor of tobacco is maintained during the drying process, the baking aroma is better maintained, and the impact of different spices on the shaping of reconstituted tobacco leaves is reduced; on the other hand, it is suitable for highlighting the characteristics of different flavor products.
  • Embodiment 1 A kind of mint flavor reconstituted tobacco leaf
  • a Based on the mint type reconstituted tobacco leaf flavor design, select tobacco raw materials (one or several mixtures of tobacco leaves, fragments, etc.) with a proportion of 15wt% (relative to the final reconstituted tobacco leaf product), and undergo CO 2 expansion treatment (immersion time 60s, hot air temperature 310 °C), grind to powder (moisture content 10%), and crush at room temperature to less than 150 mesh;
  • the above powder is used as an adsorbent material for liquid flavor, and is combined with liquid mint flavor (L-menthol, peppermint oil, etc.) added with microcapsule additives (modified starch, guar gum, sodium alginate, etc.) A mixture of mint cooling substances, 80wt%, ethanol as solvent), dried and homogenized under reduced pressure at low temperature ( ⁇ 30°C) to prepare powdered flavor; among which, the mass ratio of expanded tobacco powder, flavor, and microcapsule additives (80:18 :2);
  • Reconstituted tobacco leaf raw materials are mixed and homogeneously formed: the tobacco raw materials (remaining proportion, tobacco stems, tobacco leaf fragments, etc., 85wt% (relative to the final reconstituted tobacco leaf finished product, the same below)) are crushed to less than 150 mesh, and solid additives (carboxymethyl) are added Mix cellulose and sodium alginate mixture, 2.0wt%) with liquid additives (atomizing agent, glycerin + propylene glycol, ratio 20wt%; cellulose 0.5wt%; appropriate amount of water, homogeneous material moisture content 60% ⁇ 5%) Stir and homogenize the slurry, then form and cast it, and perform multi-stage drying (maximum process temperature ⁇ 100°C ⁇ 5°C);
  • Mint flavor is highly volatile. When heated at a certain heating rate, there is still weight loss at a lower temperature. Therefore, the prepared mint flavor tobacco solid powder (25%) is dried in a low-temperature drying area ( ⁇ 50°C) Before the shredding/rolling process, spray evenly along the running direction of the recycled tobacco blade material. If necessary, spray multiple times and both sides;
  • the above-mentioned reconstituted tobacco leaves were prepared by heating cigarettes according to a certain product standard of the COO brand, and sensory evaluation was conducted.
  • the mint-type reconstituted tobacco leaves were compared with the processing technology, and the liquid flavor was added in the mixing and homogenization molding stage of the reconstituted tobacco leaf raw materials, and then subjected to multi-stage drying. Control mint-type reconstituted tobacco leaves were obtained, heated cigarettes were prepared, and sensory evaluation was performed.
  • Table 1 The results are shown in Table 1:
  • the heated cigarette samples prepared by the process of the present invention performed better in terms of aroma and uniformity, and the intensity of the cooling sensation of mint and the uniformity before and after smoking were better; the control mint-type sample cigarettes were smoked according to the standard number of puffs (12 mouth), after 8 puffs, the intensity of the mint aroma weakens, and there is a slight burning sensation of wood fibers.
  • Figure 1 is a thermal weight loss comparison chart, specifically a comparison of the weight loss ratio between the mint-type reconstituted tobacco leaf sample cigarette (red) produced by the present invention and the mint-type sample cigarette (black) produced by the control process at a certain heating rate from room temperature to 105°C. As shown in the figure It can be seen that the weight loss of the sample of the present invention is greater than that of the control sample, indicating that the volatilization loss of the flavor applied during the production process is less, and it volatilizes in large quantities during the subsequent heating process of the heated cigarette, providing more flavor substances.
  • Embodiment 2 A kind of fruit flavor reconstructed tobacco leaf
  • a According to the design of fruity reconstituted tobacco leaf flavor, select tobacco raw materials (one or several mixtures of tobacco leaves, fragments, etc.) with a proportion of 25wt% (relative to the final reconstituted tobacco leaf product), and undergo CO 2 expansion treatment (immersion time 30s, hot air temperature 300 °C), grind to powder (moisture content 8%), and crush at room temperature to less than 150 mesh;
  • the above powder is used as an adsorption material for liquid flavors, and is combined with liquid fruit flavor flavors (sweet orange oil, menthol, Raspberry ketone, etc., 60wt%, ethanol as solvent), dried and homogenized under reduced pressure at low temperature ( ⁇ 30°C) to prepare powdered flavor; among them, the mass ratio of expanded tobacco powder, flavor, and microcapsule additives (75:24:1 );
  • Reconstituted tobacco leaf raw materials are mixed and homogeneously formed: the tobacco raw materials (remaining proportion, tobacco stems, tobacco leaf fragments, etc., 75wt% (relative to the final reconstituted tobacco leaf finished product, the same below)) are crushed to less than 150 mesh, and solid additives (carboxymethyl) are added Cellulose, sodium alginate mixture, 1.5wt%) and liquid additives (atomizer, glycerin + propylene glycol, total ratio 20wt%; cellulose 1.5wt%; appropriate amount of water, homogeneous material moisture content 30% ⁇ 5%)
  • the mixing and homogenizing process undergoes multi-stage roller pressing and multi-stage drying (maximum process temperature ⁇ 100°C ⁇ 5°C);
  • Spraying and flavoring Fruit flavor flavors are highly volatile. When heated at a certain heating rate, there is still weight loss at a lower temperature. Therefore, the prepared mint flavor tobacco solid powder (20wt%) is dried in a low-temperature drying area ( ⁇ 60°C ) to the shredding/rolling process, spray evenly in the running direction of the recycled tobacco blade material, and spray multiple times and both sides if necessary;
  • the above-mentioned reconstituted tobacco leaves were prepared by heating cigarettes according to a certain product standard of the COO brand, and sensory evaluation was carried out.
  • the fruit-flavored reconstituted tobacco leaves were compared with the processing technology, and liquid flavors were added in the mixing and homogenizing stage of the reconstituted tobacco leaf raw materials, and then multi-stage drying was carried out.
  • the heated cigarette samples prepared by the process of the present invention performed better in terms of aroma and uniformity, and the fruit flavor intensity and uniformity before and after smoking were better.
  • the standard number of puffs (12 puffs) the first 8 puffs remained Good uniformity; the control fruit flavor sample cigarettes were smoked according to the standard number of puffs (12 puffs), and the fruit aroma intensity weakened after 6 puffs.

Abstract

一种风味型再造烟叶的加工方法，包括以下步骤：将部分烟草原料经膨胀处理后磨粉，得到烟草粉末；将烟草粉末与液体香精在低温下减压干燥均质，得到粉末香精；将剩余烟草原料粉碎后与固态助剂、液体助剂混合后均质成型，再多级干燥，得到烟草材料；将粉末香精自低温干燥区域至后处理阶段喷涂至烟草材料表面，再后处理，得到风味型再造烟叶。

Description

一种风味型再造烟叶的加工方法
本申请要求于2022年5月18日提交中国专利局、申请号为202210539474.8、申请名称为“一种风味型再造烟叶的加工方法”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本申请涉及加热卷烟技术领域，尤其涉及一种风味型再造烟叶的加工方法。
背景技术
加热卷烟是一种新型卷烟，采用加热而非燃烧的方式进行使用，一般加热温度在350℃左右。加热卷烟在抽吸时，加热烟草基质，甘油、丙二醇等雾化剂挥发形成气溶胶，同时，不同易挥发性物质受热参与形成气溶胶，从而丰富香气，满足不同消费体验。
目前主流电加热卷烟口味主要有烟草口味、薄荷口味和水果等风味，其中薄荷、水果等风味加热卷烟添加有较高比例的低沸点易挥发香精添加剂，通常在烟草基质(再造烟叶)或滤棒中添加。通常风味型再造烟叶的生产工艺过程中，调配好的香精与水、甘油等液态助剂、添加剂混合均匀后再与烟粉、固态助剂一起搅拌，经辊压或流延等方式成型，随后干燥，调节水分，切丝或收卷制成再造烟叶产品，用于加热卷烟的卷制。在干燥过程中，一般温度在100℃左右，通过热交换形式，调节水分的过程中，挥发性香味成分，特别是低沸点物质挥发较多，既造成香精的浪费，工艺能量的消耗，也影响干燥后风味再造烟叶的产品品质。
因此，为了降低干燥过程易挥发香味物质的损失，需要对香精进行处理，改进再造烟叶生产工艺，降低过程香精添加剂损耗，提升风味型再造烟叶的质量。
在公开号为CN 112056607A的中国专利中公开了一种具有高、低沸点成分的香料在线加香的装置及方法，其在流延再造烟叶生产过程中，采用高沸点成分和低沸点成分分开加香的方式，其中高沸点成分直接以液态形式喷涂到再造烟叶浆料上表面；而低沸点成分以液态形式喷涂到位于流浆箱后方的钢带上，随着干燥过程进行，位于再造烟叶浆料的下表面的低沸点成分冷凝水受热蒸发，进入到再造烟叶浆料内部，而再造烟叶浆料上表面的高沸点成分冷凝水不会被蒸发，仍保留在再造烟叶浆料上表面；从而完成对再造烟叶浆料进行的具有高、低沸点成分的香料在线加香。上述分次加香的方式，虽然避免了低沸点成分在干燥过程中的挥发损失，但是作为完成香精的整体，需要二次分馏处理或者在调配时进行分组调配，香精的完整度会受到潜在影响。同时，上述工艺过程导致两组分香精在再造烟叶分布不均，受热时抽吸时，热释放效率受到影响。
申请内容
本申请解决的技术问题在于提供一种风味型再造烟叶的加工方法，该加工方法使得低沸点挥发性香味物质损耗低，且产品稳定性好，加热后香味物质的释放相对稳定。
有鉴于此，本申请提供了一种风味型再造烟叶的加工方法，包括以下步骤：
将部分烟草原料经膨胀处理后磨粉，得到烟草粉末；将所述烟草粉末与液体香精在低温下减压干燥均质，得到粉末香精；
将剩余烟草原料粉碎后与固态助剂、液体助剂混合后均质成型，再多级干燥，得到烟草材料；
将所述粉末香精自低温干燥区域至后处理阶段喷涂至所述烟草材料表面，再后处理，得到风味型再造烟叶。
优选的，所述部分烟草原料和所述剩余烟草原料的质量比为(10％～25％)：(75％～90％)。
优选的，所述液体香精中包括微囊助剂，所述微囊助剂选自改性淀粉、瓜尔胶和海藻酸钠中的一种或多种。
优选的，所述烟草粉末、所述液体香精和所述微囊助剂的质量比为(75～95)：(5～25)：(1～2)。
优选的，所述得到粉末香精的步骤中，所述低温的温度＜20℃。
优选的，所述固态助剂选自羟甲基纤维素和海藻酸钠中的一种或两种，所述液体助剂中包括雾化剂、纤维素和水。
优选的，所述固态助剂为混合后的物料的0.5～3.0wt％，所述雾化剂为混合后的物料的10～25wt％，所述纤维素为混合后的物料的0.5～3.0wt％。
优选的，在得到烟草材料的步骤中，所述多级干燥的温度小于110℃，所述均质后的材料的含水率为25％～65％。
优选的，所述低温干燥区域中的温度不高于所述粉末香精的最大热失重温度。
优选的，所述后处理包括依次进行的切丝、成卷。
本申请提供了一种风味型再造烟叶的加工方法，其将再造烟叶液态香精施加方式改为粉末施加，施加区域由干燥工艺前调整至干燥过程中的低温区域至后处理阶段；使得再造烟叶生产过程中，低沸点挥发性香味物质损耗降低，干燥工艺过程能量消耗降低，再造烟叶生产成本降低；在再造烟叶生产中，一方面在干燥的过程中保持烟草的原味本香，烘烤香韵保持较好，不同香料的对再造烟叶成型的影响减少；另一方面适合彰显不同风味产品特色；最终，本申请制备的风味再造烟叶的产品特征稳定，加热后，香味物质的释放相对稳定，不同香精成分的完整性得到保留。
附图说明
图1为本发明风味型再造烟叶的加工流程示意图；
图2为本发明实施例1加工的薄荷型再造烟叶样品卷烟与对照工艺薄荷型样品卷烟的热失重比照图。
具体实施方式
为了进一步理解本发明，下面结合实施例对本发明优选实施方案进行描述，但是应当理解，这些描述只是为进一步说明本发明的特征和优点，而不是对本发明权利要求的限制。
为了避免低沸点香精在再造烟叶工艺过程中的过多损失，保持香精组分的完整性，提升抽吸体验，本发明在风味型再造烟叶的加工工艺过程中，引入了香精固化载体且限制了加入方式，而减少了工艺损耗，保持了香精的整体性，提升了风味再造烟叶的质量。本申请风味型再造烟叶的加工流程示意图如图1所示，本发明实施例公开了一种风味型再造烟叶的加工方法，包括以下步骤：
将部分烟草原料经膨胀处理后磨粉，得到烟草粉末；将所述烟草粉末与液体香精在低温下减压干燥均质，得到粉末香精；
将剩余烟草原料粉碎后与固态助剂、液体助剂混合后均质成型，再多级干燥，得到烟草材料；
将所述粉末香精自低温干燥区域至后处理阶段喷涂至所述烟草材料表面，再后处理，得到风味型再造烟叶。
在风味型再造烟叶的生产过程中，本申请将烟草原料分成两部分，其中一部分烟草原料采用传统烟草膨胀工艺处理，得到膨胀烟丝，粉碎至150目以下，其作为液体香精的吸附物质，与液体香精在低温减压干燥均质，得到粉末香精。在本申请中，所述烟草原料具体可包括烟叶、碎片、烟梗等常规的烟草原料。上述膨胀烟丝的含量率为8～10％。所述液体香精中包括微囊助剂，所述微囊助剂选自改性淀粉、瓜尔胶和海藻酸钠中的一种或多种。所述粉末香精、所述液体香精和所述微囊助剂的质量比为(75～95)：(5～25)：(1～2)。所述低温的条件小于20℃。所述减压干燥均质为本领域技术人员熟知的操作，对此本申请没有特别的限制。
在此基础上，本申请将另一部分烟草原料粉碎后与固态助剂、液态助 剂混合后均质成型，在多级干燥，即得到烟草材料。在此过程中，所述烟草原料粉碎至150目以下。所述固态助剂选自羧甲基纤维素和海藻酸钠中的一种或两种；所述液态助剂包括雾化剂、纤维素和水，其中所述雾化剂是甘油和丙二醇的混合物。在上述三种材料混合后的混合物中，所述固态助剂的含量为0.5～3.0wt％，所述液态助剂中雾化剂的含量为10～25wt％，所述纤维素的含量为0.5～3.0wt％。所述均质后的物料的含水率为25％～65％。同样的，所述均质成型和所述多级干燥均为本领域技术人员熟知的技术手段，此处不进行具体的说明；在本申请中，所述多级干燥的温度小于110℃，更具体地，所述多级干燥的温度小于95℃。
在本申请中，根据产品的需求，所述部分烟草原料和所述剩余烟草原料的质量比为(10％～25％)：(75％～90％)。
本发明中粉末香精的最大热失重温度为T1，在干燥低温区域至后处理阶段本申请将粉末香精均匀的延上述烟草材料运行方向喷涂，必要时可进行多次或正反两面喷涂，喷涂后再进行后续的切丝或成卷，即完成风味型再造烟叶的生产。上述温度范围以及在低温干燥区喷涂粉末香精，可以有效避免低沸点易挥发香精组分的损失。
本申请提供的风味型再造烟叶的加工方法具有如下优点：
在再造烟叶生产过程中，低沸点挥发性香味物质损耗降低，干燥工艺过程能量消耗降低，再造烟叶生产成本降低；
风味再造烟叶的产品特征稳定，加热后，香味物质的释放相对稳定，不同香精成分的完整性得到保留；
风味再造烟叶生产过程中，生产环境得到改善，对生产环境气味影响减少；不同风味再造烟叶生产间的影响减少，工艺保养要求降低；
在再造烟叶生产中，一方面在干燥的过程中保持烟草的原味本香，烘烤香韵保持较好，不同香料的对再造烟叶成型的影响减少；另一方面适合彰显不同风味产品特色。
为了进一步理解本发明，下面结合实施例对本发明提供的风味型再造 烟叶的加工方法进行详细说明，本发明的保护范围不受以下实施例的限制。
实施例1一种薄荷风味再造烟叶
a：根据薄荷型再造烟叶香精设计，选取15wt％比例(相对最终再造烟叶成品)的烟草原料(烟叶、碎片等一种或几种混合物)，经CO 2膨胀处理(浸渍时间60s，热风温度310℃)，磨粉(含水率10％)，常温粉碎至150目以下；
b：上述粉末作为液体香精的吸附物质，与添加了微囊助剂(改性淀粉、瓜儿胶，海藻酸钠等一种或多种)的液体薄荷风味香精(L-薄荷醇、薄荷油等薄荷凉味物质混合物，80wt％，乙醇为溶剂)，在低温(＜30℃)减压干燥均质，制备粉末香精；其中，膨胀烟草粉末、香精、微囊助剂质量比例(80：18：2)；
c：再造烟叶原料混合均质成型：烟草原料(剩余比例，烟梗、烟叶碎片等，85wt％(相对最终再造烟叶成品，下同))粉碎至150目以下，加入固态助剂(羧甲基纤维素、海藻酸钠混合物，2.0wt％)与液体助剂(雾化剂，甘油+丙二醇，比例20wt％；纤维素0.5wt％；水适量，均质物料含水率60％±5％)混合搅拌均质制浆料后成型流延，进行多级干燥(最高工艺温度＜100℃±5℃)；
d：喷涂加香：薄荷香精挥发性较强，在一定升温速率加热时，较低温度下仍然存在失重，因此将制备的薄荷香精烟草固体粉末(25％)在低温干燥区域(＜50℃)至切丝/成卷工序前，均匀的延再造烟叶片材运行方向喷涂，必要时可进行多次和正反两面喷涂；
e:后续：喷涂后进行后续切丝或成卷工艺，完成薄荷型风味型再造烟叶生产。
将上述工艺再造烟叶按照COO品牌某规格产品标准进行加热卷烟制备，进行感官评价；对照加工工艺薄荷型再造烟叶，采用液体香精形式在再造烟叶原料混合均质成型阶段添加，后进行多级干燥后获得对照薄荷型再造烟叶，进行加热卷烟制备，进行感官评价。结果如表1所示：
表1电加热卷烟感官整体质量评价指标
Figure PCTCN2022133164-appb-000001
通过对比评价，本发明工艺制备的加热卷烟样品，在香气和均匀性方面表现较好，薄荷凉感的强度和抽吸前后的均匀性较好；对照薄荷型样品卷烟按照标准抽吸口数(12口)，8口以后薄荷香韵强度减弱，略有木质纤维灼热感。
图1为热失重比较图，具体是本发明工艺薄荷型再造烟叶样品卷烟(红色)与对照工艺薄荷型样品卷烟(黑色)在一定升温速率下，室温至105℃区间的失重比例对比，由图可知，本发明样品失重较对照样品大，表明生产过程中施加的香精挥发损失较少，在加热卷烟后续加热的过程中大量挥发，提供更多的风味物质。
实施例2一种水果风味再造烟叶
a：根据果味再造烟叶香精设计，选取25wt％比例(相对最终再造烟叶成品)的烟草原料(烟叶、碎片等一种或几种混合物)，经CO 2膨胀处理(浸渍时间30s，热风温度300℃)，磨粉(含水率8％)，常温粉碎至150目以下；
b：上述粉末作为液体香精的吸附物质，与添加了微囊助剂(改性淀粉、瓜儿胶，海藻酸钠等一种或多种)的液体水果风味香精(甜橙油、薄荷醇、覆盆子酮等，60wt％，乙醇为溶剂)，在低温(＜30℃)减压干燥均质，制备粉末香精；其中，膨胀烟草粉末、香精、微囊助剂质量比例(75：24：1)；
c：再造烟叶原料混合均质成型：烟草原料(剩余比例，烟梗、烟叶碎片等，75wt％(相对最终再造烟叶成品，下同))粉碎至150目以下，加入固态助剂(羧甲基纤维素、海藻酸钠混合物，1.5wt％)与液体助剂(雾化剂，甘油+丙二醇，总比例20wt％；纤维素1.5wt％；水适量，均质物料含水率30％±5％)混合搅拌均质制经过多级辊压，进行多级干燥(最高工艺温度＜100℃±5℃)；
d：喷涂加香：水果风味香精挥发性较强，在一定升温速率加热时，较低温度下仍然存在失重，因此将制备的薄荷香精烟草固体粉末(20wt％)在低温干燥区域(＜60℃)至切丝/成卷工序前，均匀的延再造烟叶片材运行方向喷涂，必要时可进行多次和正反两面喷涂；
e:后续：喷涂后进行后续切丝或成卷工艺，完成水果型风味型再造烟叶生产。
将上述工艺再造烟叶按照COO品牌某规格产品标准进行加热卷烟制备，进行感官评价；对照加工工艺水果风味再造烟叶，采用液体香精形式在再造烟叶原料混合均质成型阶段添加，后进行多级干燥后获得水果风味再造烟叶，进行加热卷烟制备，进行感官评价。结果如表2所示：
表2电加热卷烟感官整体质量评价指标
Figure PCTCN2022133164-appb-000002
通过对比评价，本发明工艺制备的加热卷烟样品，在香气和均匀性方面表现较好，水果风味强度和抽吸前后的均匀性较好，按照标准抽吸口数 (12口)，前8口保持较好的均匀性；对照水果风味样品卷烟按照标准抽吸口数(12口)，6口以后水果香韵强度减弱。
以上实施例的说明只是用于帮助理解本发明的方法及其核心思想。应当指出，对于本技术领域的普通技术人员来说，在不脱离本发明原理的前提下，还可以对本发明进行若干改进和修饰，这些改进和修饰也落入本发明权利要求的保护范围内。
对所公开的实施例的上述说明，使本领域专业技术人员能够实现或使用本发明。对这些实施例的多种修改对本领域的专业技术人员来说将是显而易见的，本文中所定义的一般原理可以在不脱离本发明的精神或范围的情况下，在其它实施例中实现。因此，本发明将不会被限制于本文所示的这些实施例，而是要符合与本文所公开的原理和新颖特点相一致的最宽的范围。

Claims (10)

  1. 一种风味型再造烟叶的加工方法，包括以下步骤：
    将部分烟草原料经膨胀处理后磨粉，得到烟草粉末；将所述烟草粉末与液体香精在低温下减压干燥均质，得到粉末香精；
    将剩余烟草原料粉碎后与固态助剂、液体助剂混合后均质成型，再多级干燥，得到烟草材料；
    将所述粉末香精自低温干燥区域至后处理阶段喷涂至所述烟草材料表面，再后处理，得到风味型再造烟叶。
  2. 根据权利要求1所述的加工方法，其特征在于，所述部分烟草原料和所述剩余烟草原料的质量比为(10％～25％)：(75％～90％)。
  3. 根据权利要求1所述的加工方法，其特征在于，所述液体香精中包括微囊助剂，所述微囊助剂选自改性淀粉、瓜尔胶和海藻酸钠中的一种或多种。
  4. 根据权利要求3所述的加工方法，其特征在于，所述烟草粉末、所述液体香精和所述微囊助剂的质量比为(75～95)：(5～25)：(1～2)。
  5. 根据权利要求1所述的加工方法，其特征在于，所述得到粉末香精的步骤中，所述低温的温度＜20℃。
  6. 根据权利要求1所述的加工方法，其特征在于，所述固态助剂选自羟甲基纤维素和海藻酸钠中的一种或两种，所述液体助剂中包括雾化剂、纤维素和水。
  7. 根据权利要求6所述的加工方法，其特征在于，所述固态助剂为混合后的物料的0.5～3.0wt％，所述雾化剂为混合后的物料的10～25wt％，所述纤维素为混合后的物料的0.5～3.0wt％。
  8. 根据权利要求1所述的加工方法，其特征在于，在得到烟草材料的步骤中，所述多级干燥的温度小于110℃，所述均质后的材料的含水率为25％～65％。
  9. 根据权利要求1所述的加工方法，其特征在于，所述低温干燥区域中的温度不高于所述粉末香精的最大热失重温度。
  10. 根据权利要求1～9任一项所述的加工方法，其特征在于，所述后处理包括依次进行的切丝、成卷。
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