Tobacco flavor with fresh and sweet aroma style and application thereof

Abstract

The invention relates to a tobacco flavor with a fresh and sweet aroma style and application thereof, and the tobacco flavor with the fresh and sweet aroma style is prepared by a preparation method comprising the following steps: filtering a water extract of a perfume lemon by using an ultrafiltration membrane to obtain a perfume lemon ultrafiltration clear liquid; filtering the alcohol extraction clear liquid of the roses by using a nanofiltration membrane to obtain rose nanofiltration clear liquid; and mixing the tobacco leaf raw material with the perfume lemon ultrafiltration clear liquid and the rose nanofiltration clear liquid, extracting, carrying out solid-liquid separation, and concentrating clear liquid to obtain the tobacco leaf extract. The mixed liquid of the perfume lemon ultrafiltration clear liquid and the rose nanofiltration clear liquid is creatively used as the extraction solvent of the tobacco leaf raw material, so that the final spice product not only has obvious faint scent, sweet fragrance, fruit fragrance and flower fragrance, but also improves the fragrance, richness, fineness and softness of smoke; meanwhile, the suction comfort can be obviously improved, and the irritation to the throat and the nasal cavity is reduced.

Description

Technical Field

[0001] The present invention belongs to the technical field of tobacco flavorings, and relates to a tobacco flavoring with a sweet aroma and an application thereof, and in particular to a tobacco flavoring with a sweet aroma and improved smoking comfort and richness of smoke aroma and an application thereof. Background Art

[0002] When smoking cigarettes, the sweetness can bring comfort and pleasure to consumers. Tobacco itself has a sweet taste when burning. The sweet aroma is divided into light sweet aroma, sweet aroma and burnt sweet aroma, but the sweetness is relatively weak. In order to highlight the flavor style characteristics of cigarettes and eliminate the bitterness, dryness, astringency and other unpleasant tastes caused by the tobacco leaves themselves, cigarette product developers often add some sweetening and moisturizing tobacco flavorings when flavoring cigarettes to increase the sweetness of cigarettes, reduce irritation, and make the aftertaste comfortable. These tobacco flavorings are indispensable additives in the production process of tobacco products. They have the function of improving the aroma style characteristics of the product and covering up unpleasant odors. They are regarded as one of the key core technologies affecting the sensory quality of cigarette products.

[0003] CN111876256A discloses a sweet-smelling tobacco flavor, its preparation method and application, comprising the following raw materials in parts by weight: 10-30 parts of tobacco flavor, 5-15 parts of sweet-smelling flavor, 15-25 parts of sorbitol, and 10-30 parts of 70% ethanol, which can significantly enhance the sweet aroma and tobacco flavor of cigarettes, and has the effect of enhancing the aroma richness and texture of cigarettes; CN105105322A discloses a sweet-smelling tobacco flavor for sweetening and moisturizing, and its application method ... The raw materials are mixed: stevioside 0.1-2%, rutin 0.02-0.2%, seabuckthorn polysaccharide 0.1-2%, seabuckthorn flavonoids 0.02-0.2%, and ethanol 95.6-99.76% containing 50% water; when used, 0.05-3‰ of the weight of tobacco cuts, stem cuts or tobacco flakes can be added, which has the effects of significantly enhancing the sweet aroma of sweet and fragrant cigarettes, reducing the dryness of smoke, making smoke round and rich, improving the state of smoke, and leaving a sweet and comfortable aftertaste. It can keep the aroma stable during the smoking process, and improve the sensory quality of cigarette smoking comfort.

[0004] Existing flavorings primarily focus on enhancing the sweetness, natural tobacco aroma, aroma richness, and texture of cigarettes, but rarely address the evaluation of smoking comfort. Developing a tobacco flavoring that combines a sweet aroma with enhanced smoking comfort and aroma richness, thereby meeting the needs of diverse consumer groups, remains a pressing challenge. Summary of the Invention

[0005] In view of the deficiencies in the prior art, the purpose of the present invention is to provide a tobacco flavoring with a sweet aroma style and its application, and in particular to provide a tobacco flavoring with a sweet aroma style and improving smoking comfort and smoke aroma richness and its application.

[0006] In order to achieve the purpose of the invention, the present invention adopts the following technical solutions:

[0007] In a first aspect, the present invention provides a tobacco flavoring having a sweet aroma, wherein the tobacco flavoring having a sweet aroma is prepared by a preparation method comprising the following steps:

[0008] (1) filtering the water-extracted clear liquid of the perfume lemon through an ultrafiltration membrane to obtain an ultrafiltrated clear liquid of the perfume lemon;

[0009] The rose alcohol extract was filtered using a nanofiltration membrane to obtain a rose nanofiltration extract.

[0010] (2) The tobacco leaf raw material is mixed with the ultrafiltration clear liquid of perfume lemon and the nanofiltration clear liquid of rose, and the mixture is extracted and solid-liquid separated. After the clear liquid is concentrated, the tobacco flavoring having a sweet aroma is obtained.

[0011] The present invention creatively uses a mixture of perfume lemon ultrafiltration supernatant and rose nanofiltration supernatant as the extraction solvent for tobacco leaf raw materials. Compared with the direct mixing method of traditional tobacco flavorings, it is conducive to creating a sweet and delicate tobacco flavor. The perfume lemon ultrafiltration supernatant is obtained by filtering the water-extracted supernatant of perfume lemon through an ultrafiltration membrane, and the rose nanofiltration supernatant is obtained by filtering the alcohol-extracted supernatant of rose through a nanofiltration membrane. The perfume lemon ultrafiltration supernatant and the rose nanofiltration supernatant prepared by a specific preparation process cooperate with each other, synergistically enhancing the effect, and fusing the extracted tobacco leaf raw materials. The final flavor product not only has a distinct style of fresh, sweet, fruity, and floral fragrance, but also enhances the aroma, richness, and delicate softness of the smoke. At the same time, it can significantly improve the comfort of smoking and reduce the irritation of the throat and nasal cavity. It is a tobacco flavor with excellent comprehensive sensory properties.

[0012] Preferably, the water extract of the perfume lemon is prepared by a preparation method comprising the following steps:

[0013] Mix the perfume lemon with water, perform reflux extraction, separate the solid and liquid, and take the clear liquid.

[0014] Preferably, the mass ratio of the perfume lemon to water is 1:(8-12), for example 1:8, 1:8.5, 1:9, 1:9.5, 1:10, 1:10.5, 1:11, 1:11.5, 1:12, etc. Other specific values ​​within this numerical range are within the scope of protection of the present invention and are not described in detail here.

[0015] Preferably, the number of reflux extractions is 1-3 times, for example, 1 time, 2 times or 3 times, each time for 1-3 hours, for example, 1 hour, 1.5 hours, 2 hours, 2.5 hours, 3 hours, etc. Other specific point values ​​not listed within this numerical range are within the scope of protection of the present invention and are not described here one by one.

[0016] Preferably, the solid-liquid separation method is plate and frame filtration, and the pore size of the plate and frame filter paper is 1-10μm, for example, 2μm, 4μm, 5μm, 6μm, 7μm, 10μm, etc. Other specific point values ​​not listed in this numerical range are within the protection scope of the present invention and will not be repeated here.

[0017] Preferably, the molecular weight cut-off of the ultrafiltration membrane is 50,000-100,000 Da, for example, 50,000 Da, 60,000 Da, 70,000 Da, 80,000 Da, 90,000 Da, 100,000 Da, etc. Other specific point values ​​within this numerical range that are not listed are within the scope of protection of the present invention and are not described one by one here.

[0018] The water extract of perfume lemon was also filtered through an ultrafiltration membrane with a specific molecular weight cutoff before use to remove components that are not conducive to improving the overall sensory performance.

[0019] Preferably, the working pressure of the ultrafiltration membrane filtration is 0.1-0.5Mpa, such as 0.1Mpa, 0.2Mpa, 0.3Mpa, 0.4Mpa, 0.5Mpa, etc., and the working temperature is 20-40°C, such as 20°C, 25°C, 30°C, 35°C, 40°C, etc. Other specific point values ​​within this numerical range that are not listed are within the scope of protection of the present invention and will not be repeated here.

[0020] Preferably, the rose alcohol extract is prepared by a preparation method comprising the following steps:

[0021] The rose flowers are mixed with an ethanol aqueous solution and subjected to reflux extraction, solid-liquid separation, and the supernatant is collected.

[0022] Preferably, the mass ratio of the rose to the ethanol aqueous solution is 1:(8-12), for example, 1:8, 1:8.5, 1:9, 1:9.5, 1:10, 1:10.5, 1:11, 1:11.5, 1:12, etc. Other specific values ​​within this numerical range are within the scope of protection of the present invention and are not repeated here.

[0023] Preferably, the ethanol concentration of the ethanol aqueous solution is 50-70%, for example, 50%, 55%, 60%, 65%, 70%, etc. Other specific values ​​within this numerical range that are not listed are within the protection scope of the present invention and will not be repeated here.

[0024] Preferably, the number of reflux extractions is 1-3 times, for example, 1 time, 2 times or 3 times, each time for 1-3 hours, for example, 1 hour, 1.5 hours, 2 hours, 2.5 hours, 3 hours, etc. Other specific point values ​​not listed within this numerical range are within the scope of protection of the present invention and are not described here one by one.

[0025] Preferably, the solid-liquid separation method is plate and frame filtration, and the pore size of the plate and frame filter paper is 1-10μm, for example, 2μm, 4μm, 5μm, 6μm, 7μm, 10μm, etc. Other specific point values ​​not listed in this numerical range are within the protection scope of the present invention and will not be repeated here.

[0026] Preferably, the molecular weight cut-off of the nanofiltration membrane is 300-500Da, for example, 300Da, 350Da, 400Da, 450Da, 500Da, etc. Other specific point values ​​within this numerical range that are not listed are within the scope of protection of the present invention and are not described one by one here.

[0027] Before use, the rose alcohol extract was filtered through a nanofiltration membrane with a specific molecular weight cutoff to remove components that are not conducive to improving the overall sensory performance.

[0028] Preferably, the working pressure of the nanofiltration membrane filtration is 1-3Mpa, such as 1Mpa, 1.5Mpa, 2Mpa, 2.5Mpa, 3Mpa, etc., and the working temperature is 20-40°C, such as 20°C, 25°C, 30°C, 35°C, 40°C, etc. Other specific point values ​​not listed within this numerical range are within the protection scope of the present invention and will not be repeated here.

[0029] Preferably, the tobacco leaf raw material includes 20-60 mesh tobacco leaf crushed material.

[0030] Preferably, the mass ratio of the tobacco raw material to the ultrafiltrate of perfume lemon and the nanofiltrate of rose is 1:(5-10):(5-10), for example, 1:5:5, 1:5:6, 1:5:7, 1:5:8, 1:5:9, 1:5:10, 1:6:5, 1:6:6, 1:6:7, 1:6:8, 1:6:9, 1:6:10, 1:7:7, 1:7:8, 1:7:9, 1:7:10, 1:8:5, 1:8:6, 1:8:7, 1:8:8, 1:9:5, 1:9:6, 1:5:7, 1:9:8, 1:10:5, 1:10:6, 1:10:7, 1:10:8, etc. Other specific point values ​​not listed within this numerical range are within the scope of protection of the present invention and are not described one by one here.

[0031] Preferably, the extraction method in step (2) includes reflux extraction.

[0032] Preferably, the number of reflux extractions is 1-3 times, for example, 1 time, 2 times or 3 times, each time for 1-3 hours, for example, 1 hour, 1.5 hours, 2 hours, 2.5 hours, 3 hours, etc. Other specific point values ​​not listed within this numerical range are within the scope of protection of the present invention and are not described here one by one.

[0033] Preferably, the solid-liquid separation method in step (2) includes plate and frame filtration, and the pore size of the plate and frame filter paper is 1-10 μm, for example, 2 μm, 4 μm, 5 μm, 6 μm, 7 μm, 10 μm, etc. Other specific point values ​​not listed within this numerical range are within the scope of protection of the present invention and will not be repeated here.

[0034] Preferably, the clear liquid in step (2) is concentrated to a soluble solid content of 30-50%, for example, 30%, 35%, 40%, 45%, 50%, etc. Other specific point values ​​within this numerical range that are not listed are within the scope of protection of the present invention and will not be repeated here.

[0035] In a second aspect, the present invention provides use of the tobacco flavoring according to the first aspect in the preparation of tobacco products.

[0036] Preferably, the tobacco products include traditional cigarettes, heated cigarettes, electronic cigarettes, and cigars.

[0037] Compared with the prior art, the present invention has the following beneficial effects:

[0038] The present invention creatively uses a mixture of perfume lemon ultrafiltration supernatant and rose nanofiltration supernatant as an extraction solvent for tobacco leaf raw materials, wherein the perfume lemon ultrafiltration supernatant is obtained by filtering the water-extracted supernatant of perfume lemon through an ultrafiltration membrane, and the rose nanofiltration supernatant is obtained by filtering the alcohol-extracted supernatant of rose through a nanofiltration membrane. The perfume lemon ultrafiltration supernatant and the rose nanofiltration supernatant prepared by a specific preparation process cooperate with each other, synergistically enhance the effect, and fuse the extracted tobacco leaf raw materials, so that the final flavor product not only has a distinct style of fresh, sweet, fruity and floral fragrance, but also enhances the aroma, richness, delicate and softness of the smoke, and at the same time can significantly improve the smoking comfort and reduce the irritation of the throat and nasal cavity. Therefore, it is a tobacco flavor with excellent comprehensive sensory properties. DETAILED DESCRIPTION

[0039] In order to further illustrate the technical means and effects adopted by the present invention, the technical solutions of the present invention are further described below in conjunction with the preferred embodiments of the present invention, but the present invention is not limited to the scope of the embodiments.

[0040] Preparation Example 1-1

[0041] A water-extracted clear liquid of perfume lemon is prepared as follows:

[0042] The perfume lemon and water were mixed in a mass ratio of 1:8 and reflux extracted once for 3 hours. The extract was filtered using plate and frame filtration (filter paper with a pore size of 10 μm) to obtain the clear liquid.

[0043] Preparation Example 1-2

[0044] A water-extracted clear liquid of perfume lemon is prepared as follows:

[0045] The perfume lemon and water were mixed in a mass ratio of 1:10 and refluxed for extraction twice, each time for 2 hours. The two extracts were combined and filtered using a plate and frame filter (with a pore size of 10 μm) to obtain the clear liquid.

[0046] Preparation Examples 1-3

[0047] A water-extracted clear liquid of perfume lemon is prepared as follows:

[0048] The perfume lemon and water were mixed in a mass ratio of 1:12 and refluxed for extraction three times, each time for 1 hour. The three extracts were combined and filtered using plate and frame filtration (filter paper pore size: 10 μm) to obtain the clear liquid.

[0049] Preparation Example 2-1

[0050] Prepare a rose alcohol extract clear liquid, specifically as follows:

[0051] The rose flowers were mixed with 8 times the mass of 50% ethanol aqueous solution and subjected to reflux extraction once for a total of 3 hours. The extract was filtered using plate and frame filtration (filter paper with a pore size of 5 μm) to obtain the clear liquid.

[0052] Preparation Example 2-2

[0053] Prepare a rose alcohol extract clear liquid, specifically as follows:

[0054] Rose flowers were mixed with 10 times the mass of 60% ethanol aqueous solution and subjected to reflux extraction twice, each time for 2 hours. The two extracts were combined and filtered using plate and frame filtration (filter paper pore size: 5 μm) to obtain the clear solution.

[0055] Preparation Example 2-3

[0056] Prepare a rose alcohol extract clear liquid, specifically as follows:

[0057] Rose flowers were mixed with 12 times the mass of 70% ethanol aqueous solution and subjected to reflux extraction three times, each time for 1 hour. The three extracts were combined and filtered using plate and frame filtration (filter paper pore size: 5 μm) to obtain the clear solution.

[0058] Comparative Preparation Example 3

[0059] Prepare a kind of alcohol extract of perfume lemon, specifically as follows:

[0060] The perfume lemon was mixed with 8 times the mass of 50% ethanol aqueous solution and refluxed for 3 hours. The extract was filtered by plate and frame (filter paper with a pore size of 10 μm) to obtain the clear liquid.

[0061] Comparative Preparation Example 4

[0062] A water-extracted clear solution of rose flower is prepared as follows:

[0063] Rose flowers were mixed with water in a mass ratio of 1:8 and subjected to reflux extraction once for 3 h. The extract was filtered using plate and frame filtration (filter paper with a pore size of 5 μm) to obtain the clear solution.

[0064] Example 1

[0065] This embodiment provides a tobacco flavoring, and its preparation method is as follows:

[0066] (1) The water extract of the perfume lemon obtained in Preparation Example 1-1 was filtered using an ultrafiltration membrane with a molecular weight cutoff of 80,000 Da, a working pressure of 0.3 MPa, and a working temperature of 30° C. to obtain a perfume lemon ultrafiltration clear solution;

[0067] The rose alcohol extract obtained in Preparation Example 2-1 was filtered through a nanofiltration membrane with a molecular weight cutoff of 400 Da, at a working pressure of 2 MPa and a working temperature of 30° C. to obtain a rose nanofiltration supernatant;

[0068] (2) The 50-mesh crushed tobacco leaves were mixed with the above-mentioned perfume lemon ultrafiltration supernatant and rose nanofiltration supernatant in a mass ratio of 1:7:8, and reflux extraction was performed once for a total of 3 hours. The supernatant was taken by plate and frame filtration (the pore size of the filter paper was 5 μm), and the supernatant was concentrated to a soluble solid content of 50%, thereby obtaining the tobacco flavoring with a sweet aroma.

[0069] Example 2

[0070] This embodiment provides a tobacco flavoring, and its preparation method is as follows:

[0071] (1) The water extract of the perfume lemon obtained in Preparation Example 1-2 was filtered using an ultrafiltration membrane with a molecular weight cutoff of 100,000 Da, at a working pressure of 0.2 MPa and a working temperature of 20° C. to obtain a perfume lemon ultrafiltration clear solution;

[0072] The rose alcohol extract obtained in Preparation Example 2-2 was filtered through a nanofiltration membrane with a molecular weight cutoff of 500 Da, at a working pressure of 1 MPa and a working temperature of 20° C. to obtain a rose nanofiltration supernatant;

[0073] (2) The 50-mesh crushed tobacco leaves were mixed with the above-mentioned perfume lemon ultrafiltration supernatant and rose nanofiltration supernatant in a mass ratio of 1:5:10, and reflux extraction was performed twice, each time for 2 hours. After the extracts were combined, plate and frame filtration was performed (the filter paper pore size was 5 μm), and the supernatant was taken and concentrated to a soluble solid content of 40%, thereby obtaining the tobacco flavoring with a sweet aroma style.

[0074] Example 3

[0075] This embodiment provides a tobacco flavoring, and its preparation method is as follows:

[0076] (1) The water extract of the perfume lemon obtained in Preparation Example 1-3 was filtered using an ultrafiltration membrane with a molecular weight cutoff of 50,000 Da, a working pressure of 0.5 MPa, and a working temperature of 40° C. to obtain a perfume lemon ultrafiltration clear solution;

[0077] The rose alcohol extract obtained in Preparation Example 2-3 was filtered using a nanofiltration membrane with a molecular weight cutoff of 300 Da, at a working pressure of 3 MPa and a working temperature of 40° C. to obtain a rose nanofiltration supernatant;

[0078] (2) The 50-mesh crushed tobacco leaves were mixed with the above-mentioned perfume lemon ultrafiltration supernatant and rose nanofiltration supernatant in a mass ratio of 1:10:5, and reflux extraction was performed once for a total of 3 hours. The supernatant was taken by plate and frame filtration (the pore size of the filter paper was 5 μm), and the supernatant was concentrated to a soluble solid content of 30%, thereby obtaining the tobacco flavoring with a sweet aroma.

[0079] Example 4

[0080] This embodiment provides a tobacco flavoring, the preparation method of which differs from that of Example 1 only in that in step (1), the ultrafiltration membrane with a molecular weight cutoff of 80,000 Da is replaced with an ultrafiltration membrane with a molecular weight cutoff of 10,000 Da, and other conditions remain unchanged.

[0081] Example 5

[0082] This embodiment provides a tobacco flavoring, the preparation method of which differs from that of Example 1 only in that in step (1), the ultrafiltration membrane with a molecular weight cutoff of 80,000 Da is replaced with an ultrafiltration membrane with a molecular weight cutoff of 200,000 Da, and other conditions remain unchanged.

[0083] Comparative Example 1

[0084] This comparative example provides a tobacco flavoring. The preparation method thereof differs from that of Example 1 only in that the water extract of the perfume lemon obtained in Preparation Example 1-1 in step (1) is replaced by the alcohol extract of the perfume lemon obtained in Comparative Preparation Example 3, and other conditions remain unchanged.

[0085] Comparative Example 2

[0086] This comparative example provides a tobacco flavoring, the preparation method of which differs from that of Example 1 only in that the rose alcohol extract obtained in Preparation Example 2-1 in step (1) is replaced by the rose water extract obtained in Comparative Preparation Example 4, and other conditions remain unchanged.

[0087] Comparative Example 3

[0088] This comparative example provides a tobacco flavoring. The preparation method thereof differs from that of Example 1 only in that the water extract of perfume lemon is not subjected to ultrafiltration membrane filtration in step (1), and the water extract of perfume lemon of equal mass is directly used in step (2), and other conditions remain unchanged.

[0089] Comparative Example 4

[0090] This comparative example provides a tobacco flavoring, the preparation method of which differs from that of Example 1 only in that the alcohol-extracted supernatant of roses is not subjected to nanofiltration membrane filtration in step (1), and an alcohol-extracted supernatant of roses of equal mass is directly used in step (2), and other conditions remain unchanged.

[0091] Comparative Example 5

[0092] This comparative example provides a tobacco flavoring, and its preparation method is as follows:

[0093] (1) The water extract of the perfume lemon obtained in Preparation Example 1-1 was filtered using an ultrafiltration membrane with a molecular weight cutoff of 80,000 Da, a working pressure of 0.3 MPa, and a working temperature of 30° C. to obtain a perfume lemon ultrafiltration clear solution;

[0094] The rose alcohol extract obtained in Preparation Example 2-1 was filtered through a nanofiltration membrane with a molecular weight cutoff of 400 Da, at a working pressure of 2 MPa and a working temperature of 30° C. to obtain a rose nanofiltration supernatant;

[0095] (2) The 50-mesh crushed tobacco leaves were mixed with 10 times the mass of a 25% ethanol aqueous solution, and reflux extraction was performed once for a total of 3 hours. The filter was filtered using a plate and frame filter (the pore size of the filter paper was 5 μm), and the supernatant was taken. The supernatant was mixed with the above-mentioned perfume lemon ultrafiltration supernatant and rose nanofiltration supernatant in a mass ratio of 1:7:8, and concentrated to a soluble solid content of 50%, thereby obtaining the tobacco flavoring.

[0096] Comparative Example 6

[0097] This comparative example provides a tobacco flavoring, and its preparation method is as follows:

[0098] (1) The water extract of the perfume lemon obtained in Preparation Example 1-1 was filtered using an ultrafiltration membrane with a molecular weight cutoff of 80,000 Da, a working pressure of 0.3 MPa, and a working temperature of 30° C. to obtain a perfume lemon ultrafiltration clear solution;

[0099] (2) The 50-mesh crushed tobacco leaves were mixed with the above-mentioned perfume lemon ultrafiltration clear liquid at a mass ratio of 1:15, and reflux extraction was performed once for a total of 3 hours. The clear liquid was collected by plate and frame filtration (filter paper pore size of 5 μm), and concentrated to a soluble solid content of 50% to obtain the tobacco flavoring.

[0100] Comparative Example 7

[0101] This comparative example provides a tobacco flavoring, and its preparation method is as follows:

[0102] (1) The rose alcohol extract obtained in Preparation Example 2-1 was filtered using a nanofiltration membrane with a molecular weight cutoff of 400 Da, at a working pressure of 2 MPa and a working temperature of 30° C. to obtain a rose nanofiltration supernatant;

[0103] (2) The 50-mesh crushed tobacco leaves were mixed with the above-mentioned rose nanofiltration clear liquid at a mass ratio of 1:15, and reflux extraction was performed once for a total of 3 hours. The clear liquid was collected by plate and frame filtration (filter paper pore size of 5 μm), and concentrated to a soluble solid content of 50% to obtain the tobacco flavoring.

[0104] Test Case

[0105] The tobacco flavorings prepared in Examples 1-5 and Comparative Examples 1-7 were added to unflavored, unadded, blank cigarettes at a dry matter dosage of 100 μg / g using a cigarette flavoring injection machine to prepare sample cigarettes. Separate blank cigarettes were used as control cigarettes. The cigarettes were sealed and stored at a temperature of (22±1)°C and a relative humidity of 60%±2% for at least 48 hours. Ten smokers conducted sensory evaluations of the aroma, comfort, and smoke characteristics of the sample and control cigarettes according to the method specified in "YC / T497-2014 Sensory Evaluation Method for Chinese Cigarette Flavors." The results are shown in Tables 1-3 (presented as average values).

[0106] Table 1

[0107]

[0108]

[0109] Table 2

[0110]

[0111] Table 3

[0112]

[0113]

[0114] It can be seen from the data results in Tables 1 to 3 that, compared with the product of Comparative Example 5, the tobacco flavoring involved in the present invention creatively uses a mixture of perfume lemon ultrafiltration supernatant and rose nanofiltration supernatant as the extraction solvent for the tobacco leaf raw material. Compared with the method of directly mixing the tobacco extract with perfume lemon ultrafiltration supernatant and rose nanofiltration supernatant, the final flavoring product greatly improves the aroma, richness, and delicate softness of the smoke, can more significantly improve the smoking comfort, and reduce the irritation of the throat and nasal cavity.

[0115] Compared with the products of Comparative Examples 6-7, the tobacco flavoring involved in the present invention creatively uses a mixture of perfume lemon ultrafiltration supernatant and rose nanofiltration supernatant as the extraction solvent for tobacco raw materials. Compared with using perfume lemon ultrafiltration supernatant or rose nanofiltration supernatant as the extraction solvent for tobacco raw materials, the final flavoring product not only has a more obvious fragrance, sweetness, fruity and floral style, but also has better aroma, richness, delicateness and softness of the smoke, and better smoking comfort, indicating that perfume lemon ultrafiltration supernatant and rose nanofiltration supernatant as extraction solvents for tobacco leaves cooperate with each other to synergize and enhance the above-mentioned effects.

[0116] Compared with the products of Comparative Examples 1-4, the present invention uses two plant extract supernatants prepared by a specific preparation process as the extraction solvent for tobacco leaves to obtain excellent comprehensive sensory evaluation results, wherein the perfume lemon ultrafiltration supernatant is obtained by filtering the water extract supernatant of perfume lemon through an ultrafiltration membrane, and the rose nanofiltration supernatant is obtained by filtering the alcohol extract supernatant of rose through a nanofiltration membrane. The preparation process affects the sensory evaluation results of the spices.

[0117] The applicant declares that the present invention is illustrated by the above-described embodiments, but the present invention is not limited to the above-described embodiments. This does not mean that the present invention must rely on the above-described embodiments in order to be implemented. Those skilled in the art should understand that any improvements to the present invention, equivalent replacements for raw materials in the present invention, additions of auxiliary ingredients, and selection of specific methods, etc., fall within the scope of protection and disclosure of the present invention.

[0118] The preferred embodiments of the present invention are described in detail above. However, the present invention is not limited to the specific details in the above embodiments. Within the technical concept of the present invention, various simple modifications can be made to the technical solution of the present invention, and these simple modifications all fall within the scope of protection of the present invention.

[0119] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any appropriate manner without contradiction. In order to avoid unnecessary repetition, the present invention will not further describe various possible combinations.

Claims

1. A tobacco flavoring having a sweet aroma, characterized in that: The tobacco flavoring with a sweet aroma is prepared by a preparation method comprising the following steps: (1) filtering the water-extracted clear liquid of the perfume lemon through an ultrafiltration membrane to obtain an ultrafiltrated clear liquid of the perfume lemon; The rose alcohol extract was filtered using a nanofiltration membrane to obtain a rose nanofiltration extract. (2) The tobacco leaf raw material is mixed with the ultrafiltration clear liquid of perfume lemon and the nanofiltration clear liquid of rose, and the mixture is extracted and solid-liquid separated. After the clear liquid is concentrated, the tobacco flavoring having a sweet aroma is obtained.

2. The tobacco flavoring according to claim 1, wherein The water extract of the perfume lemon is prepared by a preparation method comprising the following steps: Mixing the perfume lemon with water, performing reflux extraction, separating the solid and liquid, and taking the clear liquid; Preferably, the mass ratio of the perfume lemon to water is 1:(8-12); Preferably, the reflux extraction is performed 1-3 times, each time for 1-3 hours; Preferably, the solid-liquid separation method is plate-and-frame filtration, and the pore size of the plate-and-frame filter paper is 1-10 μm.

3. The tobacco flavoring according to claim 1, wherein The molecular weight cut-off of the ultrafiltration membrane is 50,000-100,000 Da; Preferably, the working pressure of the ultrafiltration membrane filtration is 0.1-0.5 MPa, and the working temperature is 20-40°C.

4. The tobacco flavoring according to claim 1, wherein The rose alcohol extract is prepared by a preparation method comprising the following steps: Mixing rose flowers with ethanol water solution, performing reflux extraction, separating the solid and liquid, and taking the clear liquid; Preferably, the mass ratio of the rose to the ethanol aqueous solution is 1:(8-12); Preferably, the ethanol concentration of the ethanol aqueous solution is 50-70%; Preferably, the reflux extraction is performed 1-3 times, each time for 1-3 hours; Preferably, the solid-liquid separation method is plate-and-frame filtration, and the pore size of the plate-and-frame filter paper is 1-10 μm.

5. The tobacco flavoring according to claim 1, wherein The molecular weight cut-off of the nanofiltration membrane is 300-500Da; Preferably, the working pressure of the nanofiltration membrane filtration is 1-3 MPa, and the working temperature is 20-40°C.

6. The tobacco flavoring according to claim 1, wherein The tobacco leaf raw material includes 20-60 mesh tobacco leaf crushed material; Preferably, the mass ratio of the tobacco leaf raw material to the perfume lemon ultrafiltration supernatant and the rose nanofiltration supernatant is 1:(5-10):(5-10).

7. The tobacco flavoring according to claim 1, wherein The extraction method in step (2) includes reflux extraction; Preferably, the reflux extraction is performed 1-3 times, each time for 1-3 hours.

8. The tobacco flavoring according to claim 1, wherein The solid-liquid separation method in step (2) includes plate-and-frame filtration, and the pore size of the plate-and-frame filter paper is 1-10 μm.

9. The tobacco flavoring according to claim 1, wherein The supernatant in step (2) is concentrated to a soluble solid content of 30-50%.

10. Use of the tobacco flavoring according to any one of claims 1 to 9 in the preparation of tobacco products; Preferably, the tobacco products include traditional cigarettes, heated cigarettes, electronic cigarettes, and cigars.

Images