Aerosol-generating tobacco-containing composition comprising medium-chain triglyceride

Abstract

To provide an aerosol-generating tobacco-containing material for an aerosol-generating article which does not give unpleasant smell or taste to consumers.SOLUTION: An aerosol-generating tobacco-containing composition provided in a form of a foam or mousse, and an aerosol-generating article including the composition are provided. The composition includes particulate tobacco material and lipid, where the lipid is medium-chain triglyceride, and a ratio of the medium-chain triglyceride to the tobacco-containing material on a dry weight basis is between 1:3 and 1:5.SELECTED DRAWING: None

Description

[Technical Field]

[0001] The present invention relates to aerosol-forming tobacco-containing compositions comprising an aerosol-forming material and a tobacco material containing medium-chain triglycerides, as well as aerosol-producing articles, particularly non-combustion heated smoking articles, comprising such compositions. [Background technology]

[0002] A large number of prior art documents relating to aerosol-producing articles and devices disclose the use of such articles, including new forms of smoking, including, for example, electrically heated aerosol-generating devices in which the aerosol is generated by the transfer of heat from a heating element of the aerosol-generating device to an aerosol-generating substrate or material.

[0003] Homogenized tobacco materials are often used in the manufacture of tobacco products. Parts of the tobacco plant that are less suitable for the manufacture of cut fillers, such as tobacco stems or tobacco dust, are typically the materials used for homogenization. Examples of common forms of homogenized tobacco materials include, for example, powder form, reconstituted tobacco sheets, and cast leaves.

[0004] In non-combustion heated aerosol products, the aerosol-forming substrates are reportedly heated to a relatively low temperature, e.g., below 350° C., to avoid their combustion. The charge of the inhalable aerosol can then be released from the aerosol product.

[0005] The emitted aerosol comes from aerosol-forming agents incorporated into the tobacco material, which may be in particulate or granular form. To be emitted, these aerosol-forming agents must migrate from within the body of the homogenized tobacco material to the surface of the homogenized tobacco material. During this process, other volatile compounds, such as nicotine, migrate outward from the body of the homogenized tobacco material in a similar manner and are ultimately emitted with the charge of the aerosol.

[0006] WO 2017 / 077112 A1 relates to a homogenized tobacco material containing tobacco and a lipid having a melting point between 50°C and 150°C. It discloses that the homogenized tobacco material contains a meltable lipid component, which advantageously allows for less tobacco to be used while providing comparable nicotine or aerosol yields. Furthermore, the inclusion of a meltable lipid component also allows for the migration of aerosol-forming agents and other volatile compounds within the homogenized tobacco material to the surface region of the tobacco material. Nevertheless, these advantages come at the expense of the fact that side tastes and off-flavors resulting from the meltable lipid component cannot be completely avoided.

[0007] Therefore, it would be desirable to provide an aerosol-generating tobacco-containing material for an aerosol product that does not impart an unpleasant odor or taste to the consumer. Furthermore, it would be particularly desirable to improve the delivery of volatile compounds, including nicotine, especially when operating at low temperatures. In addition, it would also be desirable to provide an aerosol product having a new form of homogenized tobacco material that is suitable for the delivery of volatile compounds. Summary of the Invention [Means for solving the problem]

[0008] The inventors of the present invention have found a solution to the problems discussed above with an aerosol-forming tobacco-containing composition as defined in the claims.

[0009] Thus, a first aspect of the present invention provides an aerosol-generating agent provided in the form of a foam or mousse. The present invention provides a tobacco-containing composition, the composition comprising particulate tobacco material and lipid, the lipid being a medium-chain triglyceride, and the ratio of medium-chain triglyceride to tobacco-containing material is 1:3 to 1:5 on a dry weight basis.

[0010] Accordingly, a second aspect of the present invention is to provide an aerosol product comprising an aerosol-forming tobacco-containing composition provided in the form of a foam or mousse according to the present invention.

[0011] Accordingly, a third aspect of the present invention provides a method for preparing an aerosol-generating tobacco-containing foam or mousse, the method comprising the steps of: (a) mixing an aerosol-forming agent, a foam-forming agent, and optionally a solvent under heating; (b) aerating the mixture with gas or air at room temperature for at least 5 minutes; (c) adding a tobacco-containing component and / or an inhalable agent to the mixture; (d) optionally aerating the mixture with gas or air; (e) adding a medium-chain triglyceride to the mixture, wherein the ratio of medium-chain triglyceride to tobacco-containing material is 1:3 to 1:5 on a dry weight basis; (f) aerating the mixture with gas or air at room temperature for at least 5 minutes; and (g) adding a foam stabilizer.

[0012] The inventors of the present invention have unexpectedly discovered that lipids can solve the problem of side flavors and off-flavors in homogenized tobacco materials when used in aerosol-generating tobacco-containing compositions, particularly when provided in the form of foams or mousses. The inventors have discovered that medium-chain triglycerides (MCTs), highly valued for their clean organoleptic properties, are a better choice for blending with homogenized tobacco materials compared to lipids. MCTs are odorless and tasteless, and therefore do not impart a distinct odor or flavor to the product beyond its primary odor or flavor.

[0013] Additionally, the inventors have found that when the ratio of MCT to homogenized tobacco material on a dry weight basis is between 1:3 and 1:5, not only does the porosity of the composition increase significantly, but the resulting product also has a fluffier texture and a significantly increased tobacco flavor and aroma that are highly sought after by consumers. Interestingly, these effects are not observed when the ratio of MCT to homogenized tobacco material on a dry weight basis is outside these ranges, i.e., greater than 1:5 or less than 1:3.

[0014] For example, regardless of the final amount of tobacco-containing material, if the MCT is less than 20% by weight of the total weight on a dry weight basis, fewer volatile compounds are released along with the charge of the aerosol, and therefore these effects (porosity and fluffiness of the composition, as well as the stronger tobacco flavor (e.g., in the case of a mousse or foam form) as described above) are not optimal. The stronger tobacco flavor and aroma obtained in the present invention are attributed to MCT. MCT is widely used in the flavor industry due to its excellent organoleptic properties and solvent ability. Furthermore, MCT is also excellent for extracting flavoring agents. Perhaps for this reason, Therefore, a higher proportion of MCT, i.e., a ratio of MCT to tobacco-containing material of at least 1:5 but less than 1:3, results in a more intense tobacco aroma and flavor immediately noticeable to the consumer upon use, as these ratios of MCT to tobacco have good porosity in the final product, allowing a greater amount of volatile compounds to be released from the aerosol-generating substrate with the aerosol charge. Furthermore, the aerosol-generating tobacco-containing compositions claimed herein generally have a micropore size of less than 2 nm, and the overall fluffiness of the composition is between 1 and 3 g / cm. 3 It has been found by the inventors that these characteristics of the compositions make aerosol products containing these compositions readily distinguishable from others and are therefore a preferred choice.

[0015] In one particularly preferred embodiment, the ratio of medium chain triglycerides to tobacco-containing material on a dry weight basis is 1:3. The rate of delivery of volatile compounds such as nicotine may vary with different ratios. This embodiment is most preferred because it is found to be the highest compared to all other samples. The inventors of the present invention have discovered that when the ratio of MCT to tobacco-containing material is 1:3 on a dry weight basis, the porosity and texture of the final aerosol-forming material is optimal (e.g., a mixture of open-cell and closed-cell foams) so as to release most of the volatile compounds in the aerosol.

[0016] In a particularly preferred embodiment, the composition is provided in the form of a foam or mousse. When the aerosol-forming material is provided in the form of a foam or mousse, as compared to other forms in which the material is provided, for example, in the form of a reconstituted tobacco sheet or powder, the use of MCT enhances the volume of the porous microstructure of the foam, particularly when the ratio of MCT to tobacco-containing material is 1:3 on a dry weight basis. In this regard, it is disclosed herein that foam-forming agents and foam stabilizers are involved in the formation of the foam and the maintenance of the foam microstructure.

[0017] To this end, it is reiterated that the present invention in foam or mousse form may be applied to all other embodiments discussed herein.

[0018] According to one embodiment, the mixture is aerated with heated gas or air at 35°C to 50°C for at least 10 minutes at each step. Such elevated temperatures increase the texture, consistency, and nicotine delivery of the aerosol-generating tobacco-containing foam or mousse compared to, for example, a product produced in powder form. Furthermore, the volume of the porous microstructure of the foam is enhanced by the use of MCT at such temperatures.

[0019] In another preferred embodiment, the aerosol-forming tobacco-containing composition containing medium chain triglycerides is aerated at room temperature for at least 5 minutes, preferably at least 10 minutes. The aeration process described herein increases the volume of the porous microstructure of the aerosol-forming material of the present invention.

[0020] According to one embodiment, the particulate tobacco material has a particle size of less than 100 μm, preferably less than 90 μm, less than 80 μm, less than 70 μm, less than 60 μm, or less than 50 μm, more preferably between 40 μm and 90 μm. When the particle size of the tobacco-containing material is provided to be less than 100 μm, the aerosol-forming material of the present invention, which is primarily composed of tobacco material, will have a homogenized tobacco particle size. Furthermore, the small particle size also increases the amount of surface area per unit volume of the homogenized tobacco material. Therefore, volatile compounds from the aerosol-forming material can be released in an aerosol more easily and efficiently.

[0021] According to another embodiment, the lipid is derived from palm kernel oil or coconut oil.

[0022] In yet another embodiment, the lipids consist of caprylic acid (C8:0), capric acid (C10:0), and / or preferably lauric acid (C12:0).

[0023] In another preferred embodiment, more than 50% by weight of the lipids, preferably more than 60% by weight or more than 66% by weight, based on the total weight of the lipids, is MCT caprylic acid (C8:0).

[0024] According to another embodiment, the composition further comprises maltodextrin acacia gum, silicon dioxide, and / or sunflower lecithin.

[0025] In a further embodiment, the composition comprises any of a propellant, an aerosol former, a foam stabilizer, and / or a foam former.

[0026] According to a further embodiment, the composition comprises 10 to 80% by weight of the aerosol-forming material; Preferably, the aerosol forming agent is contained in an amount of 30 to 70% by weight.

[0027] "About" or "approximately" in reference to a given numerical value means including the numerical value within 10% of the specified value. All values given in this disclosure should be understood to be complemented by the term "about" unless otherwise clear from the context.

[0028] The indefinite articles "a" or "an" do not exclude a plurality and should therefore be treated in a broad sense.

[0029] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs.

[0030] A tobacco-containing material can be any compound, mixture, particulate material, and / or solution that contains and / or carries tobacco constituents, such as tobacco, tobacco particles, tobacco flavors, and / or nicotine, either artificially included or naturally contained in tobacco. In contrast, an example of an artificially added non-tobacco flavor would be menthol.

[0031] As used herein, the term "aerosol production article" refers to an aerosol production article for generating an aerosol that includes an aerosol-forming material that is intended to be heated, rather than combusted, to release volatile compounds capable of forming an aerosol.

[0032] As used herein, the term "aerosol-forming material" refers to a material capable of releasing volatile compounds that can form an aerosol when heated. The aerosols generated from the aerosol-forming materials of the aerosol product articles described herein may be visible or invisible and may include vapors (e.g., fine particles of gaseous substances that are typically lipids or solids at room temperature) as well as droplets of gas and condensed vapor.

[0033] As used herein, the term "medium-chain triglyceride" is used to define an oil comprising one or more triglycerides, each triglyceride having two or three fatty acid chains with a chain length of 6 to 12 carbon atoms. Thus, the fatty acid chains include one or more of caproic acid (C6), caprylic acid (C8), capric acid (C10), and lauric acid (C12). These may be present in the medium-chain triglyceride oil in any combination and in any relative amounts, provided that the desired properties of the medium-chain triglyceride oil are obtained. For each triglyceride in the medium-chain triglyceride oil, the three fatty acid chains may be the same or different lengths, provided that at least two of the fatty acid chains have a chain length of 6 to 12 carbon atoms. For each triglyceride, the three fatty acid chains may be the same, or two or more of the fatty acid chains may be different from each other. The triglycerides may be individually saturated or unsaturated.

[0034] As used herein, the term "homogenized tobacco material" encompasses any tobacco material formed by agglomeration of particles of tobacco material, together with or mixed with other plant materials. For example, homogenized tobacco material can be provided in granulated (powdered) form, or can be provided as a sheet or web of homogenized tobacco material by agglomerating particulate tobacco material obtained by grinding or otherwise pulverizing one or both of tobacco lamina and tobacco stem. In addition, homogenized tobacco material can contain small amounts of one or more of tobacco dust, tobacco fines, and other particulate tobacco by-products formed during tobacco processing, handling, and shipping. Homogenized tobacco material can also be provided in small particle sizes, e.g., less than 100 μm as claimed herein, and then used to form aerosol-generating materials, which can be in the form of foams or mousses.

[0035] The aerosol-forming agent may be, for example, any compound, mixture, and / or solution capable of forming an aerosol when heated and / or in a mixture with tobacco-containing ingredients. Well-known examples include humectants such as glycerin and propylene glycol, other alcohols such as ethanol, etc.

[0036] As used herein, an open-cell foam should be understood as a foam that can be considered to be formed of a plurality of interconnected pores (formed from a structural material derived from a foam-forming agent in conjunction with interacting components such as a foam stabilizer, solid components such as tobacco particles, and some solvent, etc.) that can contain a mixture of fluid, particularly a humectant / liquid aerosol-forming substrate and air, where at least a significant portion (e.g., more than 50% by volume) of the pores in the foam are fluidly connected to one another, contrary to closed-cell foams, where most of the pores form separate pockets, each completely surrounded by the pore-forming material, so as to substantially prevent fluid from passing freely between the pores. A mousse formed as described herein is currently considered to be a predominantly open-cell mousse after cooling or heating of an aerosol-forming material containing MCT, because substantially all of the humectant appears to have been released based on measuring the weight of the mousse portion before and after heating, which could not easily explain whether the humectant could migrate through adjacent pores to reach the surface of the mousse portion, releasing steam from the mousse. However, alternative explanations cannot be completely ruled out - for example, the closed cells could possibly be opened by bursting the closed cell walls as a result of vaporized gas pressure, etc.

[0037] As referred to in the present invention, an electronic cigarette (e-cigarette) or similar device, such as an electronic pipe or non-combustion heating device, may be used to provide a user with an aerosol for inhalation, including, but not limited to, a mouthpiece, a heater, a receiving portion, such as a pod, a stick, a capsule, and a casing, according to certain embodiments.

[0038] As used herein, the term "melting point" refers to the clearing point or full melting point of a medium-chain triglyceride. This corresponds to the temperature (in degrees Celsius) at which the oil is completely liquid and completely clear with no solid particles remaining. Many methods known in the art can be used to measure the clearing point melting point of an oil, for example, the capillary method or a Stuart SMP50 melting point apparatus.

[0039] As used herein, wt% should be understood as weight percent based on the total weight of a material on a dry basis, unless otherwise specified. In this disclosure, all amounts are given in wt% unless expressly stated otherwise or clear from the context. In this disclosure, further, all amounts given in wt% add up to 100 wt%. Thus, weight percentages are calculated by dividing the mass of each component by the total mass of, for example, the foam, unless otherwise specified or clear from the context. DETAILED DESCRIPTION OF THE INVENTION

[0040] The present invention relates to an aerosol-forming tobacco-containing composition comprising lipid in the form of a medium-chain triglyceride (MCT) oil. The composition can be provided in many forms, such as one or more sheets of homogenized tobacco material, or in the form of a foam, mousse, or powder, wherein the ratio of MCT to tobacco-containing material is 1:3 to 1:5 on a dry basis. It is emphasized herein that the present invention is not limited to these two forms, and other forms are also possible, such as a powder form, a gel, or a coating of the aerosol-forming material of the present invention on a carrier.

[0041] Due to the fact that MCTs have a melting point of approximately 20° C., and therefore, MCTs as discussed in the present invention always exist in a completely liquid form at room temperature (e.g., 22-24° C.), a homogenized tobacco material therefore comprises MCT oil in liquid form dispersed within a matrix of tobacco-containing material (a solid or semi-solid, such as a foam or gel).

[0042] The MCT used in the present invention is commercially available. For example, MCT is obtained from Sensory Effects (product ID: Richmix 5025 IP (175755)), which contains a 52% fat MCT oil powder creamer made from palm kernel and / or coconut fatty acids. According to the product description, maltodextrin, acacia gum, silicon dioxide, and sunflower lecithin are also included in the product. The melting point of the MCT is significantly below 20°C, and the ratio of C6:C8:C10:C12 in the MCT is approximately 1:20:10:1. In other words, the content of C6 and C12 in the MCT used in the present invention is negligible.

[0043] To this end, it is reiterated that any commercially available MCT would be suitable for use in the present invention, so long as the commercially available product meets the standards and is marketed as a medium chain triglyceride oil.

[0044] The use of medium-chain triglyceride oils with melting points below 20°C, ensuring that the oil remains liquid at room temperature, also offers advantages in the production of homogenized tobacco materials. For example, MCT oil does not need to be heated to melt, as it naturally exists as a liquid at room temperature, compared to other lipids such as wax. Homogenized tobacco materials, which are typically derived from pulp, do not require heating to maintain the oil in liquid form. Therefore, the manufacturing process can be carried out without the need for external heating. This not only simplifies the manufacturing process, but also prevents the loss of volatile compounds from the tobacco-containing material during the external heating process. Furthermore, the use of MCTs in homogenized tobacco materials also solves the stickiness issue commonly encountered in aerosol products when lipids are used in the manufacturing process. The sticky properties of lipids result in less efficient release of volatile compounds compared to MCTs.

[0045] The inventors of the present invention have found that MCTs are optimal for extracting volatile compounds from tobacco-containing materials when the ratio of MCTs to tobacco material is between 1:3 and 1:5 on a dry basis. These samples not only reduce the side flavors and off-flavors typically present in lipid-containing samples (e.g., wax), but also provide consumers with the strongest tobacco aroma and flavor, resulting in the highest nicotine delivery.

[0046] The diffusion coefficients of aerosol-forming agents and volatile compounds, such as nicotine, are greater in the liquid phase than in the solid phase. Therefore, the liquid medium-chain triglyceride acts to facilitate the migration of volatile compounds within the particulate tobacco material to its surface. As such, the migration of these volatile compounds from the particulate tobacco material to the aerosol may be enhanced compared to homogenized tobacco material without the liquid medium-chain triglyceride oil within the specific claimed ratios. Interestingly, the inventors found that when the ratio of MCT to tobacco material on a dry basis is outside the claimed range of 1:3 to 1:5, the sample is readily recognized as a less desirable option. This is particularly evident when the sample contains MCT to tobacco material at a dry basis ratio of 1:10 or less, in which case these less desirable samples are readily recognized. Therefore, we conclude that a certain minimum threshold of MCT to tobacco material percentage is required to optimally extract volatile compounds and release them as an aerosol, allowing for the formation of a good mixture of open-cell and closed-cell foams.

[0047] The medium chain triglyceride oil is preferably uniformly distributed throughout the tobacco-containing material, This means that at room temperature there are no separately distinguishable regions of oil and plant material. Rather, the oil and particles are completely homogenized or granulated.

[0048] As described herein, the use of homogenized tobacco material incorporating medium-chain triglyceride oils may enable equivalent nicotine or aerosol yields at lower heating temperatures compared to the use of homogenized tobacco material without medium-chain triglyceride oils, as defined herein. Indeed, it has surprisingly been discovered that the use of particulate tobacco-containing material having a specific ratio of medium-chain triglycerides, as defined herein, can provide higher nicotine or aerosol yields at lower heating temperatures than the same material at higher heating temperatures. When the compositions of the present invention are used in aerosol generating devices, such as those using non-combustion heating, as intended, the potential use of lower heating temperatures can provide many advantages. For example, lower operating temperatures may allow for longer use of the aerosol generating device without the need to recharge the battery. As a further example, lower operating temperatures may allow for the use of smaller batteries. As a further example, lower operating temperatures may reduce the release of undesirable aerosol components from the homogenized tobacco material. [Example]

[0049] Example 1 Aerosol-forming tobacco-containing compositions according to the present invention were prepared from tobacco material mixed with MCT oil. The resulting compositions formed aerosol-forming materials, which in this example are provided in powder form, each having different percentages / proportions of composition, and were tested using the methods described herein.

[0050] [Table 1]

[0051] The MCT oil used in powders B, C, D, and E was Richmix obtained from Sensory Effects®, a subsidiary of Balchem Company. 5025 IP (175755). For each tobacco sample, powder / particulate tobacco was formed into an aerosol-generating substrate using conventional techniques. Aerosol products incorporating Powders B, C, D, and E are provided in accordance with the present invention using medium-chain triglyceride oil in the tobacco-containing material. An aerosol product incorporating Powder A without medium-chain triglyceride oil serves as a control sample for comparison purposes.

[0052] An example of a cellulose fiber may be, for example, Cekol® 2000, and the guar may be, for example, gellan gum food grade.

[0053] Each aerosol product was subjected to the heating test defined above at both 360°C and 280°C. The nicotine levels in the aerosol from each aerosol product were measured and The results are shown in Table 2 below.

[0054] Nicotine levels are measured using the ISO method, which is used to measure the tar, nicotine, and carbon monoxide (TNCO) content of cigarettes, and are determined using a smoking machine that puffs on the cigarette according to established methods. In the EU, this method is commonly known as the ISO method, as established by the European Commission. It is noted herein that other methods, such as the Canadian Strong Method, can also be used for measurement.

[0055] [Table 2]

[0056] As can be seen from Table 2, increased nicotine delivery from the aerosol-generating tobacco-containing compositions was observed in all aerosol products incorporating medium-chain triglycerides into the tobacco-containing material compared to the control sample (Powder A). Nevertheless, only Powders C and D showed significant improvements in nicotine delivery. This demonstrates that volatile compounds can be efficiently released when the optimal ratio of MCT to tobacco-containing material is selected. Among these ratios, the 1:3 ratio is the most promising candidate, exhibiting a 78% and 87% increase in nicotine delivery compared to the control sample (Powder A) when heated at 360°C and 280°C, respectively. Surprisingly, lower heating temperatures (e.g., 280°C) were observed to promote the release of greater amounts of nicotine in the aerosol compared to samples in which the aerosol-generating substrate (tobacco-containing composition) was heated at 360°C.

[0057] Example 2 The same experiment was repeated with the aerosol-generating tobacco-containing composition of the present invention, whereby the aerosol-generating tobacco-containing composition in this example is provided in the form of a foam or mousse. The characteristics of foams and their preparation are known in the art, as described, for example, in patent document WO 2018 / 122375 A1, except that the MCT and its ratio to the tobacco-containing material used in the present invention.

[0058] Except for the fact that the aerosol-generating tobacco-containing composition was provided in the form of a foam, all other parameters were similar to those described in Example 1.

[0059] [Table 3]

[0060] Each aerosol product was subjected to the heating test defined above at both 360° C. and 280° C. The nicotine levels in the aerosol from each aerosol product were measured and the results are shown in Table 3 below.

[0061] [Table 4]

[0062] As can be seen in Table 4, when the aerosol-generating tobacco-containing composition is provided in the form of a foam or mousse, the efficiency of nicotine delivery is observed to be significantly improved compared to Example 1. In other words, when a higher release rate of a volatile compound such as nicotine is desired, an aerosol-generating substrate in the form of a foam would be the preferred choice over an aerosol-generating substrate in powder form.

[0063] As in Example 1, a lower heating temperature, i.e., 280° C., was found to be more efficient at releasing volatile compounds compared to heating the aerosol-forming material of the present invention at a higher temperature of 360° C. Furthermore, a 1:3 MCT to tobacco-containing material ratio delivered the highest amount of nicotine, followed by a 1:5 ratio.

[0064] These results indicated that the use of aerosol-generating tobacco-containing materials having incorporated therein a medium-chain triglyceride oil resulted in increased nicotine or aerosol yield compared to homogenized tobacco materials having the same amount of tobacco but without the defined medium-chain triglyceride oil. This effect was observed more significantly when the ratio of MCT to tobacco-containing material on a dry basis was between 1:3 and 1:5.

Claims

1. 1. An aerosol-generating tobacco-containing composition provided in the form of a foam or mousse, said composition comprising a particulate tobacco material and a lipid, said lipid being a medium-chain triglyceride, and wherein the ratio of said medium-chain triglyceride to said tobacco-containing material is from 1:3 to 1:5 on a dry weight basis.

2. 2. The composition of claim 1, wherein the particulate tobacco material has a particle size of less than 100 μm, preferably less than 90 μm, less than 80 μm, less than 70 μm, less than 60 μm, or less than 50 μm, more preferably between 40 μm and 90 μm.

3. 3. The composition of claim 1, wherein the ratio of medium chain triglycerides to tobacco-containing material is 1:3 on a dry weight basis.

4. 4. The composition according to claim 1, wherein the lipid is derived from palm kernel oil or coconut oil.

5. 5. The composition according to claim 1, wherein the lipids consist of caprylic acid (C8:0), capric acid (C10:0), and / or lauric acid (C12:0).

6. 6. The composition of any one of claims 1 to 5, wherein more than 50% by weight of the lipids is MCT caprylic acid (C8:0), preferably more than 60% by weight or more than 66% by weight, based on the total weight of the lipids.

7. The composition of any one of claims 1 to 6, wherein the composition further comprises maltodextrin, gum acacia, silicon dioxide, and / or sunflower lecithin.

8. The composition of any one of claims 1 to 7, wherein the composition comprises any of a propellant, an aerosol former, a foam stabilizer, and / or a foam former.

9. A composition according to any one of the preceding claims, wherein the composition comprises an aerosol-forming agent in an amount of from 10 to 80% by weight, preferably from 30 to 70% by weight, of the aerosol-forming material.

10. 1. A method for preparing an aerosol-generating tobacco-containing foam or mousse, comprising: a. mixing an aerosol forming agent, a foam forming agent, and optionally a solvent under heating; b. aerating the mixture with gas or air at room temperature for at least 5 minutes; c. adding tobacco-containing ingredients and / or inhalable agents to said mixture; d. Optionally, aerating the mixture with gas or air; e. adding medium chain triglycerides to said mixture, wherein the ratio of said medium chain triglycerides to said tobacco-containing material is from 1:3 to 1:5 on a dry weight basis; f) aerating the mixture with gas or air at room temperature for at least 5 minutes; g. adding a foam stabilizer; A method comprising:

11. 11. The method of claim 10, wherein the mixture is aerated with heated gas or air at 35°C to 50°C for at least 10 minutes at each step.

12. An aerosol-forming tobacco-containing composition according to any one of claims 1 to 11. Rosol products.

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