Reconstituted tobacco leaf based on phyllium functional complex and preparation method thereof

Abstract

This invention belongs to the field of reconstituted tobacco technology, and provides a reconstituted tobacco based on a functional compound of Phyllanthus emblica and its preparation method. The reconstituted tobacco includes a porous composite substrate and a coating liquid. The Phyllanthus emblica functional compound includes Phyllanthus emblica pomace pulp and Phyllanthus emblica extract. The porous composite substrate is prepared by mixing and molding Phyllanthus emblica pomace pulp and tobacco pulp, wherein the Phyllanthus emblica pomace in the pulp has a porous and loose structure. The coating liquid is prepared by mixing Phyllanthus emblica extract and tobacco concentrate. The reconstituted tobacco prepared by the method of this invention can enhance the fruity sweetness and aroma of the reconstituted tobacco, improve its aroma quality, reduce its irritation, reduce its woody smell, and effectively improve the comfort of the reconstituted tobacco.

Description

Technical Field

[0001] This application relates to the field of reconstituted tobacco technology, and in particular to a reconstituted tobacco based on Phyllanthus emblica functional compound and its preparation method. Background Technology

[0002] Phyllanthus emblica contains 17 essential amino acids, as well as active substances such as gallic acid, polyphenols, and flavonoids. Among its amino acid composition, glutamic acid, proline, aspartic acid, alanine, and lysine are the most abundant. Initially sour and astringent, it develops a sweet aftertaste and is believed to have heat-clearing, detoxifying, digestive, and health-promoting effects. Its extract exhibits a pronounced fruity sweetness and aroma, and is widely used in health products, primarily for enhancing immunity and lowering blood sugar and blood pressure. Phyllanthus emblica pomace, a waste product generated during the juicing process, mainly consists of the pomace, pulp, and seeds, accounting for approximately 50% of the processed pomace. It contains abundant soluble sugars, vitamins, and fiber, making it highly nutritious.

[0003] Currently, there are reports on the development and application of amla in the cigarette industry. For example, patent publication number CN106418669B discloses a method for preparing a high-sweetness tobacco flavoring, which uses water extraction and precipitation to prepare amla extract; patent application publication number CN111772227A discloses a targeted refined amla product, its preparation method, and its application in cigarettes. In this method, amla plays a prominent role in smoothing and delicacy of smoke, reducing harshness, and increasing sweetness, thereby improving the sensory quality of cigarette smoking comfort; patent application publication number CN110184121A discloses... The invention relates to a cigarette flavoring oil containing amla extract and its preparation method and application. The oil uses amla extract as a raw material and has a distinct amla aroma with an overall fresh and natural fragrance. Patent application CN111575113A discloses a cigarette containing amla extract and its application. It provides a simple and convenient method for producing amla solid flavoring sheets, retaining the characteristics of amla while reducing its astringency. The extracted amla flavoring paste is then coated onto a paper base to obtain amla flavoring sheets with strong amla characteristics. The invention also provides a method for using amla as cigarette paper in cigarettes.

[0004] However, there are no research reports on the application of Phyllanthus emblica pomace in reconstituted tobacco. Currently, existing research focuses on the utilization of Phyllanthus emblica extracts or functional components in various fields, while the pomace (accounting for about 50% of the fruit weight) produced after Phyllanthus emblica processing is often regarded as a by-product or waste, lacking a clear direction for high-value applications. At the same time, although Phyllanthus emblica is used in tobacco, existing attempts mainly involve the direct addition of Phyllanthus emblica extract. However, Phyllanthus emblica extract contains a lot of polysaccharides, starch, pectin and other macromolecules, which result in poor sensory evaluation of combustion when added to cigarettes. In addition, the tannins in it can easily cause a bitter taste in the mouth. This further limits the exploration of the application of Phyllanthus emblica in the field of reconstituted tobacco, and also makes Phyllanthus emblica pomace undeveloped and utilized for a long time, usually treated as waste. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides a reconstituted tobacco leaf based on Phyllanthus emblica functional compound and its preparation method, which can enhance the fruity sweetness and aroma of reconstituted tobacco leaves, improve their fragrance quality, reduce irritation, decrease woody odor, and effectively improve the comfort of reconstituted tobacco leaves.

[0006] To achieve the above and related objectives, the present invention employs the following technical means:

[0007] The first aspect of this invention provides a reconstituted tobacco leaf based on a Phyllanthus emblica functional compound, wherein the reconstituted tobacco leaf comprises a porous composite sheet base and a coating liquid, and the Phyllanthus emblica functional compound comprises Phyllanthus emblica pomace slurry and Phyllanthus emblica extract.

[0008] The porous composite substrate is prepared by mixing and molding amla fruit pomace slurry and tobacco slurry. The amla fruit pomace in the amla fruit pomace slurry has a porous and loose structure. The coating liquid is prepared by mixing amla extract and tobacco leaf concentrate.

[0009] Furthermore, the mass ratio of Phyllanthus emblica pomace pulp to tobacco pulp in the porous composite substrate is (10~15):(85~90).

[0010] Furthermore, the volume ratio of Phyllanthus emblica extract to tobacco concentrate in the coating solution is (8~10):(90~92).

[0011] Furthermore, based on the oven-dry weight of the porous composite substrate, the coating amount of the coating liquid on the porous composite substrate is 25%~40%.

[0012] A second aspect of this invention provides a method for preparing reconstituted tobacco based on Phyllanthus emblica functional compound, comprising the following steps:

[0013] (1) The fruit of Phyllanthus emblica was soaked, microwave-washed and vacuum-treated in sequence to obtain de-astringent Phyllanthus emblica;

[0014] (2) Dry the de-astringent Phyllanthus emblica in a fluidized bed to obtain Phyllanthus emblica pomace with a porous and loose structure, and pulp some of the Phyllanthus emblica pomace to obtain Phyllanthus emblica pomace slurry;

[0015] (3) Another portion of the amla fruit residue was crushed, extracted with hot water, precipitated with alcohol and pH adjusted in sequence to obtain amla extract;

[0016] (4) Using tobacco dust and broken tobacco as raw materials, tobacco pulp and tobacco leaf concentrate are prepared respectively;

[0017] (5) Mix the amla fruit residue slurry and tobacco slurry to form a porous composite sheet substrate;

[0018] (6) Mix the extract of Phyllanthus emblica and the concentrated tobacco extract to prepare a coating solution;

[0019] (7) Coating liquid is applied to porous composite substrate and dried to obtain reconstituted tobacco leaves.

[0020] Furthermore, step (1) satisfies at least one of the following conditions (a) to (b):

[0021] (a) Soaking time is 90 min to 120 min;

[0022] (b) The vacuum degree of the vacuum treatment is 2kPa~5kPa, and the vacuum time is 30min~45min.

[0023] Furthermore, step (2) satisfies at least one of the following conditions (c) to (e):

[0024] (c) The air temperature of the fluidized bed is 105℃~110℃;

[0025] (d) The air velocity in the fluidized bed is 95 m / s to 100 m / s;

[0026] (e) The drying time of the fluidized bed is 5 min to 8 min.

[0027] Furthermore, step (3) satisfies at least one of the following conditions (f) to (h):

[0028] (f) Hot water extraction involves soaking at 80℃~90℃ for 3h~5h;

[0029] (g) Alcohol precipitation: Add 5 to 8 times the volume of 95% ethanol to the amla intermediate after hot water extraction, let stand, centrifuge, and obtain the supernatant.

[0030] (h) pH adjustment: Adjust the pH of the supernatant to 3.5~5.5.

[0031] Furthermore, the quantitative value of the porous composite substrate is 55 g / m³.2 ~60g / m 2 .

[0032] Furthermore, in step (4), the mass ratio of tobacco dust to shredded tobacco is 1:1.

[0033] The beneficial technical effects of this invention are as follows:

[0034] This invention removes the astringency of Phyllanthus emblica fruit to the greatest extent by soaking, microwave cleaning, and vacuum treatment, thereby reducing soluble astringent substances and tannins. Fluidized bed drying of the de-astringent Phyllanthus emblica fruit makes its structure more porous, allowing for the full release of its active ingredients during extraction. It also creates a uniform, porous, and loose structure in the fruit residue, improving its utilization rate. For example, this invention utilizes the fruit residue to prepare a substrate, which increases the substrate's porosity, facilitating oxygen diffusion during combustion and resulting in more uniform combustion. Furthermore, it allows for greater retention of coating liquid during coating, leading to a more even distribution of the active functional ingredients.

[0035] This invention involves hot water extraction, alcohol precipitation, and pH adjustment of amla pomace to remove polysaccharides / colloids, thereby eliminating astringency. It also preserves the small-molecule phenolic acids, flavonoids, and organic acids of amla, which have a positive effect on the sensory comfort of reconstituted tobacco leaves, thus retaining the characteristic flavor of amla and enhancing the fruity sweetness and reducing the irritation of reconstituted tobacco leaves.

[0036] This invention significantly improves the sensory comfort of reconstituted tobacco leaves, realizes the high-value utilization of Phyllanthus emblica pomace, and improves the combustion and processing adaptability of reconstituted tobacco leaves based on Phyllanthus emblica functional compound.

[0037] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and do not limit this application. Detailed Implementation

[0038] Unless otherwise defined, all technical and / or scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. It should be understood that certain features of the invention (described in the context of separate embodiments for clarity) may also be provided in a single embodiment. Conversely, multiple features of the invention (described in the context of a single embodiment for brevity) may also be provided separately or in any suitable combination or, where appropriate, in any other described embodiment of the invention. Certain features described in the context of various embodiments will not be considered essential features of those embodiments unless the embodiment is inoperable without those elements. The invention is further illustrated below by specific examples; however, it should be noted that the specific process conditions and results described in the embodiments of the invention are merely illustrative and should not be construed as limiting the scope of protection of the invention. All equivalent changes or modifications made in accordance with the spirit and essence of the invention should be covered within the scope of protection of the invention.

[0039] This invention provides a reconstituted tobacco leaf based on a Phyllanthus emblica functional compound. The reconstituted tobacco leaf includes a porous composite sheet base and a coating liquid. The Phyllanthus emblica functional compound includes Phyllanthus emblica pomace slurry and Phyllanthus emblica extract.

[0040] The porous composite substrate is prepared by mixing and molding amla fruit pomace slurry and tobacco slurry. The amla fruit pomace in the amla fruit pomace slurry has a porous and loose structure. The coating liquid is prepared by mixing amla extract and tobacco leaf concentrate.

[0041] Furthermore, the mass ratio of Phyllanthus emblica pomace pulp to tobacco pulp in the porous composite substrate is (10~15):(85~90).

[0042] Furthermore, the volume ratio of Phyllanthus emblica extract to tobacco concentrate in the coating solution is (8~10):(90~92).

[0043] Furthermore, based on the oven-dry weight of the porous composite substrate, the coating amount of the coating liquid on the porous composite substrate is 25%~40%.

[0044] A second aspect of this invention provides a method for preparing reconstituted tobacco based on Phyllanthus emblica functional compound, comprising the following steps:

[0045] (1) The fruit of Phyllanthus emblica was soaked, microwave-washed and vacuum-treated in sequence to obtain de-astringent Phyllanthus emblica.

[0046] Specifically, the steps are detailed below:

[0047] Take 500g of dried Phyllanthus emblica fruit, add 1000ml~1500ml of distilled water, soak for 90min~120min, filter, wash with microwave, place in a vacuum chamber, start vacuum negative pressure, make the vacuum degree 2kPa~5kPa, vacuum time 30min~45min; then restore normal air pressure, cool to room temperature and dry for later use.

[0048] (2) Dry the de-astringent Phyllanthus emblica in a fluidized bed to obtain Phyllanthus emblica pomace with a porous and loose structure, and then pulp some of the Phyllanthus emblica pomace to obtain Phyllanthus emblica pomace slurry.

[0049] Specifically, the steps are detailed below:

[0050] Place the de-astringent Phyllanthus emblica seeds into a fluidized bed drying cylinder, shake the drying cylinder to spread them evenly, fix the drying cylinder on the fluidized bed, and ensure that the air bag can be blown vertically. Set the air temperature of the fluidized bed to 105℃~110℃, the air velocity to 95m / s~100m / s, and the drying time to 5min~8min.

[0051] After soaking some of the amla fruit residue in water, it is pulped in a pulping device to disperse the fruit residue into a uniform water suspension pulp, thus obtaining amla fruit residue pulp.

[0052] (3) Another portion of the amla fruit residue was crushed, extracted with hot water, precipitated with alcohol and pH adjusted in sequence to obtain amla extract.

[0053] Specifically, the steps are detailed below:

[0054] Another portion of the amla fruit residue was crushed, and 15-20 times the weight of pure water was added. The mixture was soaked at 80-90℃ for 3-5 hours, and the filtered liquid was separated and concentrated to obtain amla intermediate. 5-8 times the volume of 95% ethanol was added to the amla intermediate. After standing for 48 hours, the mixture was centrifuged, the supernatant was collected, and the pH was adjusted to 3.5-5.5 to obtain amla extract.

[0055] (4) Tobacco pulp and tobacco concentrate were prepared using tobacco dust and broken tobacco as raw materials.

[0056] Specifically, the steps are detailed below:

[0057] Tobacco dust and broken tobacco were mixed at a mass ratio of 1:1. 1 kg of the mixture was added to hot water at 68℃ and extracted for 75 min to obtain tobacco extract and solid residue. The tobacco extract was then concentrated by vacuum rotary evaporation at 50℃, 65 mbar, and 45 rad / min to obtain a tobacco leaf concentrate with a density of 1.126%.

[0058] After the solid residue is soaked in water, it is pulped in a pulping device to disperse the solid residue into a uniform water suspension pulp, thus obtaining tobacco pulp.

[0059] (5) Mix the amla fruit residue slurry and tobacco slurry to form a porous composite sheet substrate.

[0060] Specifically, the steps are detailed below:

[0061] The amla fruit residue pulp and tobacco pulp were mixed at a mass ratio of (10~15):(85~90) to prepare a product with a quantitative content of 55g / m³. 2 ~60g / m 2 Porous composite substrate.

[0062] (6) Mix the amla extract and the tobacco leaf concentrate to prepare the coating solution.

[0063] The amla extract and tobacco leaf concentrate were mixed at a volume ratio of (8~10):(90~92) to prepare the coating solution.

[0064] (7) Coating liquid is applied to porous composite substrate and dried to obtain reconstituted tobacco leaves.

[0065] Specifically, the steps are detailed below:

[0066] The coating liquid is applied to the porous composite substrate and dried at 100℃~110℃ for 5min~10min to obtain reconstituted tobacco leaves. The coating amount of the coating liquid on the porous composite substrate is 25%~40%, based on the oven-dry weight of the porous composite substrate.

[0067] The present invention will be described in detail below through specific examples and embodiments. It should also be understood that the following embodiments are only for specific illustration of the present invention and should not be construed as limiting the scope of protection of the present invention. Any non-essential improvements and adjustments made by those skilled in the art based on the above description of the present invention are within the scope of protection of the present invention. The specific process parameters, etc., in the following examples are merely examples within a suitable range; that is, those skilled in the art can make appropriate selections within the appropriate range based on the description herein, and are not intended to be limited to the specific values ​​in the examples below.

[0068] Example 1

[0069] (1) Take 500g of dried Phyllanthus emblica fruit, remove impurities, add 1000ml of distilled water, soak for 90min, filter and wash with microwave, place in a vacuum chamber, start vacuum negative pressure, make the vacuum degree 2kPa, vacuum time 45min; then restore normal air pressure, cool to room temperature and dry to obtain de-astringent Phyllanthus emblica.

[0070] (2) Place the de-astringent amla seeds into the fluidized bed drying cylinder, shake the drying cylinder to spread them evenly, fix the drying cylinder on the fluidized bed, and ensure that the air bag can be blown vertically. Set the air temperature of the fluidized bed to 105℃, the air speed to 95m / s, and the drying time to 6min to obtain amla fruit residue.

[0071] After soaking some of the amla fruit residue in water, it is pulped in a pulping device to disperse the fruit residue into a uniform water suspension pulp, thus obtaining amla fruit residue pulp.

[0072] (3) Crush another part of the amla fruit residue, add 15 times the amount of pure water by weight, soak at 80°C for 5 hours, separate the filtered liquid, concentrate to obtain amla intermediate; add 5 times the amount of 95% ethanol by volume to the amla intermediate, let stand for 48 hours, centrifuge, take the supernatant, and adjust the pH to 4.5 to obtain amla extract.

[0073] (4) Mix tobacco dust and broken tobacco at a mass ratio of 1:1, take 1 kg of the mixture and add it to hot water at 68℃ for 75 min to extract tobacco extract and solid residue; concentrate the tobacco extract by vacuum rotary evaporation at a temperature of 50℃, a vacuum degree of 65 mbar and a rotation speed of 45 rad / min to obtain tobacco leaf concentrate with a density of 1.126%.

[0074] After the solid residue is soaked in water, it is pulped in a pulping device to disperse the solid residue into a uniform water suspension pulp, thus obtaining tobacco pulp.

[0075] (5) Mix the amla fruit residue pulp and tobacco pulp at a mass ratio of 10:90 to prepare a product with a quantitative content of 58 g / m³. 2 Porous composite substrate.

[0076] (6) Mix the amla extract and tobacco leaf concentrate at a volume ratio of 10:90 to prepare the coating solution.

[0077] (7) The coating liquid is coated on the porous composite substrate and dried at 100°C for 8 min to obtain reconstituted tobacco leaves. The coating amount of the coating liquid on the porous composite substrate is 35%, based on the absolute dry weight of the porous composite substrate.

[0078] Example 2

[0079] (1) Take 500g of dried Phyllanthus emblica fruit, remove impurities, add 1500ml of distilled water, soak for 120min, filter and wash with microwave, place in vacuum chamber, start vacuum negative pressure, make vacuum degree 5kPa, vacuum time 35min; then restore normal air pressure, cool to room temperature and dry to obtain de-astringent Phyllanthus emblica.

[0080] (2) Place the de-astringent amla seeds into the fluidized bed drying cylinder, shake the drying cylinder to spread them evenly, fix the drying cylinder on the fluidized bed, and ensure that the air bag can be blown vertically. Set the air temperature of the fluidized bed to 110℃, the air speed to 100m / s, and the drying time to 5min to obtain amla fruit residue.

[0081] After soaking some of the amla fruit residue in water, it is pulped in a pulping device to disperse the fruit residue into a uniform water suspension pulp, thus obtaining amla fruit residue pulp.

[0082] (3) Crush another part of the amla fruit residue, add 20 times the amount of pure water by weight, soak at 90°C for 4 hours, separate the filtered liquid, concentrate to obtain amla intermediate; add 8 times the amount of 95% ethanol by volume to the amla intermediate, let stand for 48 hours, centrifuge, take the supernatant, and adjust the pH to 3.5 to obtain amla extract.

[0083] (4) Mix tobacco dust and broken tobacco at a mass ratio of 1:1, take 1 kg of the mixture and add it to hot water at 68℃ for 75 min to extract tobacco extract and solid residue; concentrate the tobacco extract by vacuum rotary evaporation at a temperature of 50℃, a vacuum degree of 65 mbar and a rotation speed of 45 rad / min to obtain tobacco leaf concentrate with a density of 1.126%.

[0084] After the solid residue is soaked in water, it is pulped in a pulping device to disperse the solid residue into a uniform water suspension pulp, thus obtaining tobacco pulp.

[0085] (5) Mix the amla fruit residue pulp and tobacco pulp at a mass ratio of 15:85 to prepare a solution with a yield of 60 g / m³. 2 Porous composite substrate.

[0086] (6) Mix the amla extract and tobacco leaf concentrate at a volume ratio of 8:92 to prepare the coating solution.

[0087] (7) The coating liquid is coated on the porous composite substrate and dried at 100°C for 8 min to obtain reconstituted tobacco leaves. The coating amount of the coating liquid on the porous composite substrate is 40%, based on the absolute dry weight of the porous composite substrate.

[0088] Comparative Example 1

[0089] Tobacco dust and broken tobacco were mixed at a mass ratio of 1:1. 1 kg of the mixture was extracted in 68°C hot water for 75 minutes to obtain a tobacco extract and solid residue. The extract was concentrated by vacuum rotary evaporation at 50°C, 65 mbar, and 45 rad / min to obtain a tobacco coating liquid. The solid residue was soaked in water and then pulped in a pulping device to disperse it into a uniform aqueous suspension, thus obtaining tobacco pulp. A 100% tobacco pulp was prepared to a basis weight of 58 g / m³. 2 The substrate was coated with tobacco leaf coating liquid (coating amount 40%) and dried at 100℃ for 8 min to obtain control reconstituted tobacco leaves.

[0090] Comparative Example 2

[0091] The difference between this comparative example and Example 1 is that it does not contain amla pomace:

[0092] (1) Take 500g of dried Phyllanthus emblica fruit, remove impurities, add 1000ml of distilled water, soak for 90min, filter and wash with microwave, place in a vacuum chamber, start vacuum negative pressure, make the vacuum degree 2kPa, vacuum time 45min; then restore normal air pressure, cool to room temperature and dry to obtain de-astringent Phyllanthus emblica.

[0093] (2) Pulverize the de-astringent Phyllanthus emblica, add 15 times the weight of pure water, soak at 80°C for 5 hours, separate the filtered liquid, concentrate to obtain Phyllanthus emblica intermediate; add 5 times the volume of 95% ethanol to the Phyllanthus emblica intermediate, let stand for 48 hours, centrifuge, take the supernatant, and adjust the pH to 4.5 to obtain Phyllanthus emblica extract.

[0094] (3) Mix tobacco dust and broken tobacco at a mass ratio of 1:1, take 1 kg of the mixture and add it to hot water at 68℃ for 75 min to extract tobacco extract and solid residue; concentrate the tobacco extract by vacuum rotary evaporation at a temperature of 50℃, a vacuum degree of 65 mbar and a rotation speed of 45 rad / min to obtain tobacco leaf concentrate with a density of 1.126%; after adding water to the solid residue for soaking, it is pulped in a pulping device to disperse the solid residue into a uniform water suspension slurry to obtain tobacco slurry.

[0095] (4) Prepare the tobacco pulp to a quantity of 58g / m 2 The film base.

[0096] (5) Mix the amla extract and tobacco leaf concentrate at a volume ratio of 10:90 to prepare the coating solution.

[0097] (6) The coating liquid is applied to the substrate and dried at 100°C for 8 minutes to obtain reconstituted tobacco leaves. The coating amount of the coating liquid on the substrate is 35% based on the absolute dry weight of the substrate.

[0098] Comparative Example 3

[0099] The difference between this comparative example and Example 1 is that the extract residue of Phyllanthus emblica after crushing and leaching in step (3) is prepared into Phyllanthus emblica pomace slurry.

[0100] Performance testing

[0101] Sensory quality evaluation: The sensory quality evaluation method of reconstituted tobacco (papermaking method) according to YC / T 498-2014 was adopted to compare the sensory quality of each embodiment and each comparative example. The evaluation results are shown in Table 1.

[0102] Table 1 Sensory quality evaluation results of reconstituted tobacco leaves

[0103]

[0104] As shown in Table 1, compared with the comparative example, the reconstituted tobacco prepared in this application has a more prominent and fruity sweet aroma, better aroma richness, less woody, irritating and dryness, enhanced sweetness, better comfort, and better overall sensory quality.

[0105] The aroma of Comparative Example 1 is pure tobacco, without any potential off-flavors from foreign plants. Therefore, its sensory experience is relatively pure and comfortable, with the natural aroma of tobacco as the main characteristic.

[0106] Compared with Comparative Example 2, which lacks a porous and loose structure, the flavor components of Phyllanthus emblica are lost more quickly in the early stage of combustion, and the integration is insufficient. Furthermore, the Phyllanthus emblica extract does not have the synergistic effect of Phyllanthus emblica residue, and its adsorption on the tablet base is less. The residual trace astringent substances or incomplete combustion products are more easily manifested.

[0107] In Comparative Example 3, the amla extract residue, after being crushed, extracted with hot water, and filtered, had its fibrous structure damaged, becoming sticky or excessively fine, losing the original uniform, porous, and loose structure of the amla fruit residue. Furthermore, the amla extract residue contains insoluble cellulose, lignin, and some polymeric polyphenols, which easily produce an unpleasant odor similar to burning paper or acrid wood when burned, leading to noticeably unpleasant off-gassing. In addition, the dense sheet-like structure of the amla extract residue results in coarse, less smooth smoke.

[0108] The above embodiments are merely illustrative of the principles and effects of the present invention and are not intended to limit the invention. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in the present invention should still be covered by the claims of the present invention.

Claims

1. A reconstituted tobacco leaf based on a functional compound of Phyllanthus emblica, characterized in that, The reconstituted tobacco leaf includes a porous composite sheet base and a coating liquid, and the amla functional compound includes amla fruit pomace slurry and amla extract. The porous composite substrate is prepared by mixing and molding the amla fruit pomace slurry and tobacco slurry, wherein the amla fruit pomace in the amla fruit pomace slurry has a porous and loose structure; the coating liquid is prepared by mixing the amla extract and tobacco leaf concentrate.

2. The reconstituted tobacco leaf according to claim 1, characterized in that, The mass ratio of the amla fruit residue slurry and the tobacco slurry in the porous composite substrate is (10~15):(85~90).

3. The reconstituted tobacco leaf according to claim 1, characterized in that, The volume ratio of the amla extract and the tobacco concentrate in the coating solution is (8~10):(90~92).

4. The reconstituted tobacco leaf according to claim 1, characterized in that, Based on the oven-dry weight of the porous composite substrate, the coating amount of the coating liquid on the porous composite substrate is 25%~40%.

5. A method for preparing reconstituted tobacco based on Phyllanthus emblica functional compound, characterized in that, Includes the following steps: (1) The fruit of Phyllanthus emblica was soaked, microwave-washed and vacuum-treated in sequence to obtain de-astringent Phyllanthus emblica; (2) The de-astringent amla is dried in a fluidized bed to obtain amla fruit residue with a porous and loose structure, and a portion of the amla fruit residue is pulped to obtain amla fruit residue slurry; (3) The other part of the amla fruit residue was crushed, extracted with hot water, precipitated with alcohol and pH adjusted in sequence to obtain amla extract; (4) Using tobacco dust and broken tobacco as raw materials, tobacco pulp and tobacco leaf concentrate are prepared respectively; (5) The amla fruit residue slurry and the tobacco slurry are mixed and molded to form a porous composite sheet substrate; (6) The amla extract and the tobacco concentrate are mixed to prepare a coating solution; (7) The coating liquid is applied to the porous composite substrate and dried to obtain the reconstituted tobacco leaf.

6. The preparation method according to claim 5, characterized in that, Step (1) satisfies at least one of the following conditions (a) to (b): (a) The soaking time is 90 min to 120 min; (b) The vacuum degree of the vacuum treatment is 2kPa~5kPa, and the vacuum time is 30min~45min.

7. The preparation method according to claim 5, characterized in that, Step (2) satisfies at least one of the following conditions (c) to (e): (c) The air temperature of the fluidized bed is 105℃~110℃; (d) The air velocity in the fluidized bed is 95 m / s to 100 m / s; (e) The drying time of the fluidized bed is 5 min to 8 min.

8. The preparation method according to claim 5, characterized in that, Step (3) satisfies at least one of the following conditions (f) to (h): (f) The hot water extraction is performed by soaking at 80℃~90℃ for 3h~5h; (g) The alcohol precipitation is carried out by adding 5 to 8 times the volume of 95% ethanol to the amla intermediate after hot water extraction, allowing it to stand, centrifuging, and obtaining the supernatant. (h) The pH adjustment is to adjust the pH of the supernatant to 3.5~5.

5.

9. The preparation method according to claim 5, characterized in that, The quantitative amount of the porous composite substrate is 55 g / m³. 2 ~60g / m 2 .

10. The preparation method according to claim 5, characterized in that, In step (4), the mass ratio of the tobacco dust to the shredded tobacco is 1:1.

Images