KR20210099001A - Bulk solid reconstituted plant composition for non-burning heating device - Google Patents

Abstract

The present invention relates to a bulk solid reconstituted plant composition comprising a plant extract, purified plant fiber and an aerosol generator, the volume of which is suitable for non-burning tobacco heating devices.

Description

Bulk solid reconstituted plant composition for non-burning heating device

The present invention is in the field of devices for heating tobacco without burning, the subject matter of which is a bulk solid reconstituted plant composition whose volume is suitable for said heating device.

Many devices for heating tobacco without burning have been developed to prevent the formation of harmful components during tobacco combustion. As an example, mention may be made of the application published as WO 2013/178769. In such devices, hot air is passed through a cigarette stick containing an aerosol generating agent to generate an aerosol. The generated aerosol displaces tobacco smoke and contains tobacco aroma. Thus, it can lead the smoker to inhale tobacco aroma, while at the same time greatly reducing the smoker's exposure to harmful ingredients.

Reconstituted cigarettes are more suitable for such heating devices than natural cigarettes, because, unlike natural cigarettes, they can readily absorb and release an aerosol generating agent, thereby generating an aerosol with satisfactory sensory properties for the user.

Tobacco sticks intended for non-burning heating devices include an envelope (paper, tobacco, aluminum, etc.) which encloses a leaf of chopped reconstituted tobacco. Therefore, the production of these tobacco sticks is long and limited because many steps are required.

Moreover, these sticks can be difficult to fit into or out of a device that heats without burning a cigarette. This is because these sticks may break or even disintegrate when handled by the user and when heated in the device. This difficult use may cause some degree of dissatisfaction with the user of the device.

Accordingly, there is a need for a tobacco stick that is simple to produce and simple to use.

It may also be advantageous to convey to the user of these heating devices an aroma different from that of tobacco.

The inventors

- plant extracts,

-refined plant fibers, and

- Aerosol generator

It contains, and its density is 200 mg.cm ^-3 to 550 mg.cm ^-3 Bulk solid reconstituted plant composition was developed.

incorporated herein.

The inventors

- plant extracts,

-refined plant fibers, and

- Aerosol generator

It contains, and its density is 200 mg.cm ^-3 to 550 mg.cm ^-3 Bulk solid reconstituted plant composition was developed.

Advantageously, the bulk solid composition of the present invention is cohesive and allows heated air to pass through its volume.

Since the bulk solid composition of the present invention has cohesive force, it does not break or disintegrate, and can be used directly as is. Thus, it can be used very simply by the user of the device for heating without burning a cigarette.

Without wishing to be bound by theory, the inventors believe that purified plant fibers create a network of cohesive channels within the bulk solid composition, such that heated air passes through the volume of the bulk solid composition of the present invention.

Upon contact with heated air passing through the volume of the bulk solid mass, an aerosol comprising plant aroma is advantageously produced by the plant extract of the bulk solid composition and the aerosol generator. By changing the bulk solid composition, the user can simply change the aroma of the aerosol produced by the bulk solid composition.

Moreover, the plant extract and the aerosol generator are uniformly distributed in the bulk solid reconstituted plant composition according to the invention.

For the purposes of this application, the term "bulk solid composition" denotes a solid composition whose format is volume, ie whose format is three-dimensional. For the purposes of this application, a sheet is a format, not a volume, because it is a two-dimensional format.

Typically, the format of the bulk solid composition may be a cone, a prism, a pyramid, a cylinder, or a ball. Typically, the format of the bulk solid composition may be a prism selected from a cylinder or cube, a cuboid, a right-angled prism with a triangular base, or an equilateral triangular prism.

The bulk solid composition according to the present invention may have a density, the minimum value D _min of the density being 200 mg.cm ^-3 , 210 mg.cm ^-3 , 215 mg.cm ^-3 , 220 mg.cm ^-3 , 225 mg ^{cm -3} , 230 mg.cm ^-3 , 235 mg.cm ^-3 , 240 mg.cm ^-3 , 245 mg.cm ^-3 , the maximum value of density D _max is 250 mg.cm ^-3 , 275 mg.cm ^-3 , 300 mg.cm ^-3 , 325 mg.cm ^-3 , 350 mg.cm ^-3 , 375 mg.cm ^-3 , 400 mg.cm ^-3 , 425 mg.cm ^-3 , 475 mg.cm ^-3 , 500 mg.cm ^-3 , 525 mg.cm ^-3 , 550 mg.cm ^-3 .

According to one embodiment, the bulk solid composition of the present invention is 200 mg.cm ^-3 to 250 mg.cm ^-3 , in particular 220 mg.cm ^-3 to 240 mg.cm ^-3 , most particularly 230 mg.cm ^{-3 .} to 235 mg.cm ^-3 may have a density.

The density of the bulk solid composition of the present invention depends in part on the content by weight of dry matter of purified plant fibers contained in the bulk solid composition.

If the weight percentage of dry matter of purified plant fibers in the bulk solid composition is S _pf , then S _pf min ≤ S _pf ≤ S _pf max, S _pf min and S _pf max percentages are selected independently of each other, S _pf min is selected from 15%, 20%, 25%, 30%, 35%, 40%, 45% and 50%, S _pf max is 50%, 55%, 60%, 65%, 70%, 75%, 80% and 85%.

Typically, the weight percentage of dry matter of the refined plant fibers in the bulk solid composition is between 15% and 85%, in particular between 25% and 75%, more particularly between 50% and 60%.

The plant fiber of the bulk solid composition according to the invention is purified. Thus they have a Schopper-Riegler (SR) degree, whose minimum value SR _min is selected from the values of 20°, 30°, 35°, 40°, 45°, 50°, 55°, and its maximum value SR _max is 60 °, 65°, 70°, 75°, 80°, 85°, 90° values are selected.

According to one embodiment, the refined plant fiber may have a Schopper-Riegler (SR) degree of from 20° to 90°, in particular from 40° to 70°, more particularly from 55° to 65°.

Advantageously, the volume of the aerosol produced by heating of a bulk solid composition with purified plant fibers exhibiting an SR degree within these value ranges can be satisfactory and have pleasant sensory properties for the user. Moreover, the format of the bulk solid composition can be preserved so that the bulk solid composition can be easily handled. Bulk solid compositions with refined plant fibers exhibiting SR degrees within these value ranges do not cause any complaints to users of heating devices.

For the purposes of the present invention, "plant extract" means any water-soluble product of a plant. Advantageously, the plant extract comprises a compound that imparts organoleptic and/or therapeutic properties to an aerosol formed by heating the bulk solid composition.

The strength of the organoleptic properties and/or the efficacy of the therapeutic properties of the aerosol formed by heating the bulk solid composition may depend on the content by weight of the dry matter of the plant extract contained in the bulk solid composition of the present invention.

_{Let S P} be the weight percentage of dry matter of the plant extract in the bulk solid composition, then S _P min ≤ S _P ≤ S _P max, the S _P min and S _P max percentages are selected independently of each other, and S _P min is 5%, 10%, 15%, 20%, 25%, 30% value, S _P max being 30%, 35%, 40%, 45%, 50%, 55%, 60%, 65%, 70% and 75% values.

Typically, the weight percentage of dry matter of the plant extract in the bulk solid composition is between 5% and 75%, in particular between 15% and 60%, more particularly between 25% and 30%.

To determine S _P , the following method may be used.

The bulk solid composition to be analyzed is milled to obtain a particle size of 1 mm or less. The ground bulk solid composition is then mixed with boiling water for 45 minutes to extract all plant extracts. _SP is calculated as the difference between the weight of the dry matter of the sample of the bulk solid composition to be analyzed and the weight of the dry matter of the fibrous residue after extraction.

For the purposes of the present application, the term "aerosol generator" means a compound which permits the formation of an aerosol when heated, for example in contact with hot air.

Typically, the aerosol generator may be a polyol, a non-polyol, or a mixture thereof. The generator, which is typically a polyol, may be sorbitol, glycerol, propylene glycol, triethylene glycol, or mixtures thereof. Typically, the generating agent, which is a non-polyol, may be lactic acid, glyceryl diacetate, glyceryl triacetate, triethyl citrate or isopropyl myristate, or mixtures thereof.

According to one embodiment, the aerosol-generating agent is glycerol, propylene glycol, or a mixture of glycerol and propylene glycol, with glycerol being preferred.

When referred to the dry matter weight percentage of the aerosol generated in the bulk solid composition of claim S _AG, and S min ≤S _{AG AG AG} ≤S max, S min and S _{AG AG} max percentage is selected, each independently, S min is _AG 5%, 10%, 15%, 20%, 25% and 30% values, and S _AG max is selected from 30%, 35%, 40%, 45%, 50% values.

Typically, the weight percentage of dry matter of the aerosol generator in the bulk solid composition is between 5% and 50%, in particular between 10% and 40%, more particularly between 12% and 30%.

Advantageously, the volume of the aerosol produced by heating a bulk solid composition having an _{S AG} within this value range is satisfactory. Thus, the bulk solid composition does not cause any complaints to users of the heating device.

According to one particular embodiment, S _pf is from 25% to 75%, S _P is from 15% to 60%, S _AG is from 12% to 30%, and _{the sum of S pf} , _SP and S _AG is greater than 75% , in particular greater than 90%, more particularly greater than 99%.

Typically, the bulk solid composition of the present invention may have a residual moisture content of from 5% to 30%, in particular from 7.5% to 25%, typically from 10% to 20%.

Advantageously, this residual moisture content makes it possible to avoid burning of the mouth and/or throat (a phenomenon known as a hot puff) caused by inhaling a hot aerosol loaded with water.

The purified plant fibers and plant extracts can be obtained from plants selected from spore-producing plants, seed-producing plants or mixtures thereof. In particular, the plant may be a plant selected from tobacco plants, edible plants, aromatic plants, aromatic plants, medicinal plants and mixtures thereof, and most particularly the plant may be a tobacco plant.

Advantageously, plant extracts obtained from plant mixtures make it possible to provide a wide range of organoleptic properties. The mixture of plants also makes it possible to neutralize the unpleasant organoleptic properties of plants, for example medicinal plants, with the pleasant organoleptic properties of other plants, for example tobacco plants, aromatic plants or aromatic plants.

Advantageously, mixing the plants to obtain purified plant fibers allows adjustment of certain properties of the bulk solid composition of the present invention, such as, for example, density or volume.

When the plant is a tobacco plant, the refined tobacco fiber and tobacco extract may be of any tobacco plant or tobacco type, such as Virginia tobacco, Burley tobacco, air-cured tobacco, black air-cured tobacco, orient (Orient) tobacco, sun-cured tobacco, non-cured tobacco, or mixtures thereof.

Typically, edible plants are garlic, coffee, ginger, licorice, rooibos, Stevia rebaudiana, tea, cocoa tree, chamomile, mate.

Typically, the aromatic plants are basil, turmeric, cloves, laurel, oregano, mint, rosemary, sage, and thyme.

Typically, aromatic plants are lavender, rose, and eucalyptus.

Typically, a medicinal plant is a plant or chemical with therapeutic properties indicated in the document, List A of Traditionally Used Medicinal Plants (French Pharmacopoeia, January 2016, issued by the French National Agency for the Safety of Medicines and Health Products (ANSM)). Plants known to contain compounds. Typically, the medicinal plants listed are ginkgo, ginseng, sour cherry, peppermint, willow and red vine. Plants known to contain compounds having therapeutic properties are, for example, eucalyptus, plants of the family Cannabaceae.

When the plant is a medicinal plant, the bulk solid composition of the present invention has therapeutic properties. Aerosols produced by heating the bulk solid composition may also have therapeutic properties so that the bulk solid composition may be used in therapeutic treatment.

Typically, the purified plant fibers and plant extracts of the bulk solid compositions of the present invention may be derived from various plant parts, which plant parts are themselves or are the result of processing of various plant parts. Typically, a part of a plant may be a whole part of a plant or a fragment resulting from threshing, mixing and crushing a plant part.

Typically, refined plant fibers can be obtained from one plant and plant extracts from another plant. Indeed, the fibers of one plant may not exhibit mechanical properties that allow the formation of a bulk solid composition, but extracts of this plant may nevertheless impart desired organoleptic properties and/or desired therapeutic properties to the aerosol. Conversely, the fibers of a plant may have mechanical properties that allow the formation of a bulk solid composition, but extracts of this plant may not confer the aerosol desired organoleptic properties and/or desired therapeutic properties.

Typically, plant parts may be selected from those parts of the plant that are richest in aromatic compounds responsible for organoleptic properties. Typically, these parts are whole plants, buds, branch bark, stem bark, leaves, flowers, fruits and peduncles, seeds, petals, aerial plant parts such as flower heads, or underground parts such as bulbs, roots, roots It may be bark, rhizome, or a mixture thereof. The plant part may also be such as a husk that protects cocoa beans produced as a result of mechanical, chemical or mechano-chemical processing of one or more plant parts, for example from a soybean hulling process.

Typically, the tobacco plant part may be the part richest in aromatic compounds responsible for the organoleptic properties of the aerosol. Typically, the tobacco plant part may be the parenchyma (lamina), optionally to which the stem of the tobacco plant has been added. Typically, tobacco plant parts may be fragments produced by threshing or mixing and grinding the leaves of tobacco plants or leaves and veins of tobacco plants with scaferlati (cut tobacco).

Among the edible plants, garlic bulbs, coffee cherries, rhizomes of ginger, licorice roots and leaves of rooibos, Stevia rebaudiana or tea can be selected, for example, as parts.

Among the aromatic plants, clove buds (cloves), basil, bay and sage leaves, mint, oregano, rosemary and thyme leaves, flower heads, or rhizomes of turmeric can be selected, for example, as parts.

Typically, you can choose lavender flowers and flower heads, or rose buds and petals among aromatic plants.

Among the medicinal plants described in the French Pharmacopoeia, ginkgo leaves, ginseng subterranean parts, peduncles (cherry stems) of sour cherry fruit, leaves and flower heads of peppermint, stem bark and leaves of willows, or leaves of red vines may be selected, for example. can

Typically, the bulk solid composition may also include purified cellulosic-based plant fibers.

Cellulose-based plant fibers are fibers obtained by chemical or mechanical or thermodynamic cooking processes of annual plants such as, for example, wood pulp, hemp, or flax. Mixtures of these cellulosic-based plant fibers may also be used.

Advantageously, these purified cellulose-based plant fibers can improve the cohesive properties of the bulk solid composition, especially when the dry matter weight percentage of the purified plant fiber of the bulk solid composition, S _{pf, is low.}

Typically, the bulk solid composition according to the present invention may also comprise an essential oil. Advantageously, essential oils can provide the organoleptic properties of a wide range of panels. Essential oils may also make it possible to neutralize the unpleasant organoleptic properties of plants, for example medicinal plants, by virtue of their pleasant organoleptic properties.

According to one embodiment, the bulk solid composition may comprise at least one open-ended hole. This open-ended hole may facilitate passage of heated air through the bulk solid composition.

The bulk solid composition of the present invention may be prepared according to a process comprising the steps of:

a) mixing the purified plant fibers with a plant extract and an aerosol generator to obtain a solid composition;

b) shaping the composition to obtain a shaped solid composition, and

c) drying the shaped solid composition to produce a bulk solid reconstituted plant composition.

Unlike a process for producing tobacco sticks intended for non-burning heating devices, this process does not require the steps of cutting reconstituted tobacco leaves and producing a wrap filling wrap. Therefore, the implementation is simple. Also very fast.

Typically, step a) can be carried out by placing the purified plant fibers in a mixer, adding the plant extract and an aerosol generator, and then mixing the resulting formulation with a mixer to obtain a solid composition. Advantageously, this allows for a uniform distribution of the plant extract and the aerosol generator in the solid composition.

Step a) can also be carried out by placing the purified plant fibers in a mixer and then mixing the fibers to obtain a solid precomposition. The plant extract and the aerosol generator are then incorporated into the solid precomposition by impregnation or spraying to obtain a solid composition.

Typically, forming step b) involves the lodging of a non-burning heating device, which is intended to hold and hold the bulk solid composition in place during use of the non-burning heating device, using a mould. The solid composition is molded according to the shape and volume of the lodging).

It will be appreciated by those skilled in the art that while the shape and volume are adapted to the apparatus for heating tobacco without burning, the steps of the process for preparing the bulk solid composition, in particular the shape and volume of the bulk solid reconstituted plant composition, can be affected. Considering the drying step c), it will be seen how to adjust the die of the mold to obtain a bulk solid composition.

The bulk solid composition of the present invention may be obtained by a process comprising a shaping step.

Typically, the drying step c) can be carried out by hot air drying, freeze-drying, quick-freezing, freezing, in particular hot air drying or freeze-drying.

Hot air drying is a simple technique to implement and is well known to those skilled in the art.

Typically, hot air drying can be carried out in tunnel dryers, vertical dryers, fluidized bed dryers, pneumatic dryers, in particular in tunnel dryers.

Typically, the hot air drying may be carried out for a period of from 10 minutes to 120 minutes, in particular from 20 minutes to 60 minutes, most particularly from 25 minutes to 35 minutes, the temperature of the hot air being from 50°C to 200°C, in particular from 75°C to 150°C. , most particularly from 90°C to 100°C.

Advantageously, drying by freeze-drying makes it possible to easily preserve the shape of the shaped solid composition and not decompose aromatic compounds or compounds with plant therapeutic properties.

According to one embodiment, purified plant fibers and plant extracts are obtained according to the following steps:

a1) mixing one or more plant parts with a solvent to extract a plant extract from plant fibers;

a2) isolating the plant extract from the plant fiber, and

a3) refining the plant fiber.

Thus, plant extracts and plant fibers are typically obtained through a dissociation process. During step a1) of this process, one or more plant parts are mixed with a solvent, for example in an extractor, to extract the plant extract.

Thus, a plant extract corresponds to any plant product that is dissolved in a solvent and obtained through a dissociation process.

Typically, the solvent may be an apolar solvent, an aprotic polar solvent, a protic polar solvent or a mixture thereof, in particular the solvent may be methanol, dichloromethane, ethanol, acetone, butanol, water or a mixture thereof, more particularly The solvent is ethanol, acetone, water or a mixture thereof.

According to one particular embodiment, the solvent is an aqueous solvent, most particularly the solvent is water.

A person skilled in the art will know how to adjust the temperature of the solvent during step a1) for the plant, plant part and plant part to be treated. Typically, the temperature of the solvent while treating the roots or bark will be higher than the temperature of the solvent while treating the leaves or petals.

Typically, the temperature of the solvent during step a1) may be from 10°C to 100°C, in particular from 30°C to 90°C, more particularly from 50°C to 80°C.

According to an embodiment wherein the solvent is water and the plant is tobacco, the temperature of the water may typically be between 30°C and 80°C. Typically for the treatment of stems of tobacco plants, the temperature of the water may be between 50°C and 80°C. Typically, for treating the parenchyma of tobacco plants, the temperature of the water may be between 30°C and 70°C.

During step a2), the plant extract is separated from the plant fibers, for example by passing through a screw press or a centrifuge, in order to separate and obtain plant fibers on the one hand and plant extracts on the other hand.

Typically, the purification step a3) carried out is a step commonly used in the tobacco industry. A person skilled in the art will know how to adjust the conditions of step a3) to obtain a purified plant fiber having an SR degree as described above.

Typically, the plant extract may be concentrated prior to mixing with the purified plant fibers and an aerosol generator during step a). A device such as a vacuum evaporation device may be used to concentrate the plant extract.

Typically, refined plant fibers can be wetted. To facilitate mixing of the purified plant fibers with plant extracts and aerosol generators during step a) of the production process of the present invention, the purified fibers may be dried prior to mixing during step a). This drying can be effected, for example, by pressing or by phase separation.

Advantageously, the process of the present invention makes it possible to produce bulk solid reconstituted plant compositions whose shape and volume are suitable for devices for heating tobacco without burning, without subsequent shaping steps, such as cutting steps, typically used in the tobacco industry. It is therefore simpler to implement and also faster.

The bulk solid reconstituted plant composition of the present invention may be used in an apparatus for heating tobacco without burning.

For the purposes of the present invention, the term "a non-burning device for heating" means any device that permits the formation of an aerosol intended for inhalation by a consumer. Aerosols replace smoke, significantly reducing exposure to harmful substances while allowing smokers to inhale the aromas of plants.

Typically, a non-burning heating device is intended to hold in place the bulk solid reconstituted plant composition of the present invention in the direction of the air flow, the air inlet, the heated part, and enter the mouth of the user. It includes an air outlet intended to The air inlet, heated section, lodging and air outlet are fluidly connected to each other.

Typically, the bulk solid composition is placed in place in the lodging by the user prior to use of the non-burning heating device. When using the non-burning heating device, air is drawn into the non-burning heating device through the air air inlet by the user; The sucked air is then passed through the heated section to obtain heated air; Upon contact with the bulk solid composition held in the lodging, an aerosol is formed by the heated air and then inhaled by the user.

Typically, non-burning heating devices include a filter between the air outlet and the lodging intended to hold and hold the bulk solid composition in place. The filter may prevent inhalation of particles of the bulk solid composition by a user.

Since the plant extract is contained in the formed aerosol, the aerosol has the organoleptic properties of the plant. When the plant is a medicinal plant, the bulk solid composition of the present invention and the aerosol thus formed may have therapeutic properties.

Also, when a non-burning heating device is used with a bulk solid composition, there is no combustion of the bulk solid composition. Thus, users can benefit from the organoleptic properties of plants while significantly reducing their exposure to harmful ingredients.

Example

Exemplary Bulk Solid Compositions According to the Invention

Three different bulk solid compositions were produced according to the following procedure by °SR of the refined fibers.

A mixture of lamina of Virginia, Burley and Orient type tobacco is contacted with water while manually stirring in a water bath at 40° C. for 30 minutes in a laboratory. Tobacco extract is separated from the fibers by mechanical pressing and then vacuum-concentrated to a solids concentration of 51.5%. Glycerol is added to the aqueous fraction of tobacco.

The fibers are refined using a beater-refiner. Since the bulk solid composition differs due to the °SR of the refined fibers, the tablets are adjusted to the desired °SR.

The refined fiber, tobacco extract and glycerol are manually mixed to obtain a paste. This paste is then formed in a mold.

Finally, a bulk solid composition is obtained by drying the paste at 95° C. for 30 minutes.

Comparative bulk solid composition

A comparative bulk solid composition having a density of 620.7 mg.cm ^-3 was produced following the same procedure as described above.

Properties of bulk solid compositions

Table 1 below lists the properties of four bulk solid compositions.

composition 1 composition 2 composition 3 comparative composition Density (mg.cm ^-3 ) 234.5 234.5 243.5 620.7 Tobacco extract content (%) 28.4 28.4 28.4 49.9 Glycerol content (%) 17.9 17.9 17.9 32.1 fiber content 53.7 53.7 53.7 18.0 SR degree 52 42 60 52

Smoking test for the 4 exemplified bulk solid compositions

Because of their format, bulk solid compositions 1 to 3 and comparative bulk solid compositions are easily incorporated into the heating lodging of the Pax heating system from Ploom Inc/Pax Labs. After testing, the four bulk solid compositions can be easily extracted from the heated lodging.

During the 9 puffs, the volume of aerosol produced by the bulk solid compositions 1 to 3 is considered satisfactory. In addition, the sensory properties of the aerosol generated by composition 3 were most satisfactory to the user.

The volume of aerosol produced by the comparative bulk solid composition is considered unsatisfactory because it is too small. After the test, it was split into two pieces and it was confirmed that the center was not heated. This demonstrated that heated air could not pass through the comparative bulk solid composition.

Claims (13)

- plant extracts,
-refined plant fibers, and
- Aerosol generator
A bulk solid reconstituted plant composition comprising, the density of which is 200 mg.cm ^-3 to 550 mg.cm ^{-3 .} The method of claim 1,
A bulk solid reconstituted plant composition, wherein the plant fiber is purified and has an SR degree of 20° to 90°, in particular 40° to 70°, more particularly 55° to 65°. 3. The method according to claim 1 or 2,
The aerosol generator is sorbitol, glycerol, propylene glycol, triethylene glycol, lactic acid, glyceryl diacetate, glyceryl triacetate, triethyl citrate or isopropyl myristate, or a mixture thereof. 4. The method according to any one of claims 1 to 3,
The aerosol generating agent represents from 5% to 50%, in particular from 10% to 40%, more particularly from 12% to 30% by weight of the dry matter of the bulk solid composition. 5. The method according to any one of claims 1 to 4,
the plant is selected from spore-producing plants, seed-producing plants and mixtures thereof, in particular the plant is selected from tobacco plants, food plants, aromatic plants, aromatic plants, medicinal plants and mixtures thereof, most particularly the plants are selected from tobacco plants A bulk solid reconstituted plant composition that is a plant. 6. The method according to any one of claims 1 to 5,
A bulk solid reconstituted plant composition, wherein the plant extract represents from 5% to 75%, in particular from 15% to 60%, more particularly from 25% to 30% by weight of the dry matter of the bulk solid composition. 7. The method according to any one of claims 1 to 6,
A bulk solid reconstituted plant composition, wherein the purified plant fibers represent from 15% to 85%, in particular from 25% to 75%, more particularly from 50% to 60% by weight of the dry matter of the bulk solid composition. 8. A process for the preparation of a bulk solid reconstituted plant composition as defined in any one of claims 1 to 7, said process comprising:
a) mixing the purified plant fibers with a plant extract and an aerosol generator to obtain a solid composition;
b) shaping the composition to obtain a shaped solid composition, and
c) drying the shaped solid composition to produce a bulk solid reconstituted plant composition.
A method for producing a bulk solid reconstituted plant composition comprising a. 9. The method of claim 8,
The drying step c) is carried out by hot air drying, freeze-drying, quick-freezing, freezing, in particular hot air drying or freeze-drying. 10. The method according to claim 8 or 9,
A method in which purified plant fibers and plant extracts are obtained according to the following steps:
a1) mixing one or more plant parts with a solvent to extract a plant extract from plant fibers;
a2) isolating the plant extract from the plant fiber, and
a3) refining the plant fiber. 11. The method of claim 10,
The solvent is an aqueous solvent, most particularly the solvent is water. 12. The method of claim 10 or 11,
The process wherein the temperature of the solvent during step a1) is from 10°C to 100°C, in particular from 30°C to 90°C, more particularly from 50°C to 80°C. Use of a bulk solid reconstituted plant composition as defined in any one of claims 1 to 7 in a device for heating tobacco without burning.