A durian extract for cigarettes, its preparation method, and cigarettes

Abstract

The present invention provides a durian extract for cigarettes, a preparation method thereof, and cigarettes. In the preparation method of the durian extract for cigarettes provided by the present invention, for the durian shell, before frying, it is baked to enhance its fragrance, and then ethanol extraction, concentration, etc. are carried out to obtain durian extract A, so as to improve the aroma quality of the prepared durian extract and make it better match the original tobacco aroma; for the durian pulp, steam reflux extraction is carried out with ethanol, followed by filtration, concentration and mixing with an alcohol solvent, and then molecular distillation is carried out to obtain durian flavor component C; finally, durian extract A and durian flavor component C are combined in a certain proportion to obtain a durian extract product for cigarettes. The durian extract for cigarettes obtained by the present invention can be well coordinated with the cigarette aroma, while improving the quality of the aroma, making the smoke soft and delicate, enhancing the richness of the aftertaste, and improving the sensory evaluation quality.

Description

Technical Field

[0001] The present invention relates to the field of tobacco, and particularly to a durian extract for cigarettes, a preparation method thereof, and cigarettes. Background Art

[0002] Durian, known as the "king of fruits", is sweet as honey and delicious. It is high in calories, contains a large amount of sugar, and contains various vitamins. Durian belongs to the Bombacaceae family, is a tropical fruit tree, originally from Malaysia, and is widely cultivated in the tropical and humid regions of Southeast Asia. It is also grown in Hainan, Yunnan, etc. in China. Durian is rarely used in tobacco flavors for several reasons, but the most important reason is the common intuition of most people that "durian is too stinky".

[0003] Through literature search, it is found that durian shells are rich in various bioactive substances, including bitter substances, flavonoids, sesquiterpenoids, etc. Through previous exploration of various processes for durian shells, the extract prepared from durian shells has good use effects in tobacco and can be well coordinated with the tobacco aroma. However, if the durian pulp or whole fruit is used for extraction, the product can never be well integrated with the tobacco aroma, lacking the feasibility of application.

[0004] Cigarette products are a special type of consumer goods. Consumers particularly focus on the fragrance, taste, and comfort of cigarettes. Tobacco flavors can play roles such as enhancing fragrance, masking off-flavors, and improving oral comfort in cigarettes, and the research on related technologies has been increasingly emphasized. Currently, various extracts prepared from different plants have been widely used in cigarettes, but the effects of different plant extracts on cigarette products vary greatly. At present, no extract prepared from durian and its application in cigarette products have been found. Summary of the Invention

[0005] In view of this, the present invention provides a durian extract for cigarettes, a preparation method thereof, and cigarettes. The durian extract for cigarettes provided by the present invention can be well coordinated with the tobacco aroma, while improving the quality of the fragrance, making the smoke soft and delicate, enhancing the richness of the aftertaste, and improving the smoking quality.

[0006] The present invention provides a preparation method of a durian extract for cigarettes, comprising the following steps:

[0007] A) Preparing durian extract A:

[0008] A1) Performing a baking and fragrance-enhancing treatment on the dried durian shells, and then pulverizing to obtain a durian shell pulverized material;

[0009] A2) Mixing and soaking the durian shell pulverized material with ethanol, then performing ultrasonic extraction. After that, sedimenting the obtained extract, and then taking the supernatant for membrane filtration to obtain a total extract;

[0010] A3) Concentrate the total extract to obtain a concentrate; then mix the concentrate with an alcohol solvent to obtain durian extract A;

[0011] B) Prepare durian flavor component C:

[0012] B1) Take the pulp of fresh and ripe durian, mix it with ethanol, and perform steam reflux extraction to obtain an extract;

[0013] B2) Filter and concentrate the extract obtained in step B1) to obtain a concentrate; then mix the concentrate with an alcohol solvent to obtain durian flavor substance B;

[0014] B3) Perform molecular distillation on the durian flavor substance B, collect the light components, and obtain durian flavor component C;

[0015] C) Prepare durian extract for tobacco use:

[0016] Mix the durian extract A with the durian flavor component C to obtain durian extract for tobacco use;

[0017] Among them, there is no order restriction between step A) and step B).

[0018] Preferably, in step A1), the operation process of the baking flavor enhancement treatment is: place the dried durian shell in an electric medicine stir-frying machine for frying treatment;

[0019] The temperature of the frying treatment is 120 - 180 °C, and the time is 10 - 20 min.

[0020] Preferably, in step A2), the temperature of the soaking is 40 - 60 °C, and the time is 30 - 60 min;

[0021] The ultrasonic frequency of the ultrasonic extraction is 40 - 60 KHz, the temperature is 40 - 60 °C, and the time is 20 - 60 min.

[0022] Preferably, in step A2), the number of times of ultrasonic extraction is 2 times, and the specific operation process includes: mix the durian shell powder with ethanol for soaking, then perform the first ultrasonic extraction, and after that, perform solid-liquid separation to obtain a primary extract and a primary solid separation; then mix the primary solid separation with ethanol for soaking, then perform the second ultrasonic extraction, and after that, perform solid-liquid separation to obtain a secondary extract and a secondary solid separation.

[0023] Preferably, in step A2), the sedimentation time is 12 - 36 h; the pore size of the filter membrane used for membrane filtration is 0.22 - 0.8 μm.

[0024] Preferably, in step A3):

[0025] The degree of concentration is such that the density reaches 1.08 - 1.18 kg / m 3 ;

[0026] The alcohol solvent is propylene glycol;

[0027] The dosage of the alcohol solvent is 10% - 30% of the mass of the concentrate.

[0028] Preferably, in step B1), the temperature of the steam reflux extraction is 70 - 90 °C, and the time is 0.5 - 1.5 h;

[0029] In step B2), the degree of concentration is such that the density reaches 0.95 - 1.1 kg / m 3 .

[0030] Preferably, in step B3), the feeding rate of the molecular distillation is 10 - 20 g / min, the scraping film speed is 300 - 500 r / min, the distillation temperature is 40 - 60 °C, and the distillation pressure is 10 - 30 Pa;

[0031] In step C), the dosage of the durian flavor component C is 2% - 10% of the mass of the durian extract A.

[0032] The present invention also provides a tobacco-use durian extract prepared by the preparation method described in the above technical solution.

[0033] The present invention also provides a cigarette, wherein the essence is the tobacco-use durian extract described in the above technical solution.

[0034] The present invention provides a preparation method of a tobacco-use durian extract, which respectively uses durian shells to prepare durian extract A, and durian pulp to prepare durian flavor component C, and then combines durian extract A and durian flavor component C to prepare the tobacco-use durian extract. Specifically, for durian shells, they are baked and flavored by pre-treatment before frying, and then ethanol extraction, concentration, etc. are carried out to prepare durian extract A, so as to improve the aroma quality of the prepared durian extract and make it better match the natural aroma of tobacco; for durian pulp, steam reflux extraction is carried out with ethanol, followed by filtration, concentration and mixing with an alcohol solvent, and then molecular distillation is carried out to obtain durian flavor component C; finally, durian extract A and durian flavor component C are combined in a certain proportion to obtain the tobacco-use durian extract product. The present invention respectively treats durian shells and durian pulp differently, and then combines the two treatment products. The finally obtained tobacco-use durian extract product can be well coordinated with the tobacco aroma. After being added to the tobacco leaf group formula, it has a good promotion effect on the smoke form, and at the same time improves the aroma texture, makes the smoke soft and delicate, enhances the richness of the aftertaste, and has a good promotion and improvement effect on the tobacco quality. Specific Embodiments

[0035] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the technical field to which this application belongs. The terms used herein in the specification of this application are for the purpose of describing specific embodiments only and are not intended to limit this application.

[0036] In this document, among the technical features described in an open-ended manner, a closed technical solution composed of the listed features is included, as well as an open technical solution containing the listed features.

[0037] The term "and / or" as used herein includes any and all combinations of one or more of the related listed items.

[0038] In this document, regarding numerical ranges, unless otherwise specified, the above numerical ranges are considered continuous and include the minimum and maximum values of the range, as well as each value between such minimum and maximum values. Further, when the range refers to integers, it includes each integer between the minimum and maximum values of the range. In addition, when multiple ranges are provided to describe features or characteristics, the ranges can be combined. In other words, unless otherwise indicated, all ranges disclosed herein should be understood to include any and all sub-ranges subsumed therein.

[0039] In this document, regarding the units of data ranges, if the unit is only attached after the right endpoint, it means that the units of the left endpoint and the right endpoint are the same. For example, 120~180℃ means that the units of the left endpoint "120" and the right endpoint "180" are both ℃.

[0040] This document only specifically discloses some numerical ranges. However, any lower limit can be combined with any upper limit to form a range not explicitly recorded; and any lower limit can be combined with other lower limits to form a range not explicitly recorded, and similarly any upper limit can be combined with any other upper limit to form a range not explicitly recorded. In addition, each separately disclosed point or single numerical value itself can be used as a lower limit or an upper limit and combined with any other point or single numerical value or combined with other lower limits or upper limits to form a range not explicitly recorded.

[0041] The present invention provides a method for preparing a durian extract for cigarettes, comprising the following steps:

[0042] A) Preparing durian extract A:

[0043] A1) Performing a baking and flavor-enhancing treatment on the dried durian husk, and then pulverizing it to obtain a pulverized durian husk;

[0044] A2) Mixing and soaking the pulverized durian husk with ethanol, then performing ultrasonic extraction, and after that, settling the obtained extract, and then taking the supernatant for membrane filtration to obtain a total extract;

[0045] A3) Concentrate the total extract to obtain a concentrate; then mix the concentrate with an alcohol solvent to obtain durian extract A;

[0046] B) Prepare durian flavor component C:

[0047] B1) Take the pulp of fresh and ripe durian, mix it with ethanol, and perform steam reflux extraction to obtain an extract;

[0048] B2) Filter and concentrate the extract obtained in step B1) to obtain a concentrate; then mix the concentrate with an alcohol solvent to obtain durian flavor substance B;

[0049] B3) Perform molecular distillation on the durian flavor substance B, collect the light components, and obtain durian flavor component C;

[0050] C) Prepare durian extract for cigarettes:

[0051] Mix the durian extract A and the durian flavor component C to obtain durian extract for cigarettes;

[0052] Among them, there is no order limit between step A) and step B).

[0053] Regarding step A) : Prepare durian extract A

[0054] [Regarding step A1]:

[0055] A1) Bake and enhance the fragrance of the dried durian shell, and then crush it to obtain a crushed durian shell.

[0056] In the present invention, first perform a baking and fragrance-enhancing treatment on the dried durian shell, specifically by placing it in an electric medicine stir-frying machine for frying treatment. Among them, the temperature of the frying treatment is preferably 120-180°C, and specifically can be 120°C, 130°C, 140°C, 150°C, 160°C, 170°C, 180°C. The time of the frying treatment is preferably 10-20 min, and specifically can be 10 min, 15 min, 20 min.

[0057] In the present invention, after the above baking and fragrance-enhancing treatment, perform a crushing treatment. In the present invention, the degree of crushing is preferably such that the fineness of the material reaches 20-60 mesh, and specifically can be 20 mesh, 30 mesh, 40 mesh, 50 mesh, 60 mesh. After the above crushing treatment, a crushed durian shell is obtained.

[0058] [Regarding step A2]:

[0059] A2) Mix the crushed durian shell with ethanol and soak it, then perform ultrasonic extraction. After that, sediment the obtained extract, and then take the supernatant for membrane filtration to obtain the total extract.

[0060] In the present invention, the ethanol is preferably ethanol with a mass fraction of 50% to 80%, and specifically can be 50%, 60%, 70%, or 80%. In the present invention, the dosage ratio of the pulverized durian shell to ethanol is preferably 1000 g∶(5000 - 15000) mL, and specifically can be 1000 g∶5000 mL, 1000 g∶6000 mL, 1000 g∶7000 mL, 1000 g∶8000 mL, 1000 g∶9000 mL, 1000 g∶10000 mL, 1000 g∶11000 mL, 1000 g∶12000 mL, 1000 g∶13000 mL, 1000 g∶14000 mL, 1000 g∶15000 mL.

[0061] In the present invention, the temperature of the soaking is preferably 40 - 60 °C, and specifically can be 40 °C, 45 °C, 50 °C, 55 °C, or 60 °C. The time of the soaking is preferably 30 - 60 min, and specifically can be 30 min, 35 min, 40 min, 45 min, 50 min, 55 min, or 60 min.

[0062] In the present invention, after the above soaking treatment, ultrasonic extraction is carried out. In the present invention, the ultrasonic frequency of the ultrasonic extraction is preferably 40 - 60 KHz, and specifically can be 40 KHz, 50 KHz, or 60 KHz. The temperature of the ultrasonic extraction is preferably 40 - 60 °C, and specifically can be 40 °C, 45 °C, 50 °C, 55 °C, or 60 °C. The time of the ultrasonic extraction is preferably 20 - 60 min, and specifically can be 20 min, 30 min, 40 min, 50 min, or 60 min.

[0063] In the present invention, the number of times of the ultrasonic extraction is preferably 2 times, and the extraction liquids obtained from the 2 - time extractions are combined and then subjected to subsequent treatment. That is, the specific operation process includes: mixing the pulverized durian shell with ethanol for soaking, then carrying out the first ultrasonic extraction, and after that, performing solid - liquid separation to obtain the first extraction liquid and the first solid separation; then mixing the first solid separation with ethanol for soaking, then carrying out the second ultrasonic extraction, and after that, performing solid - liquid separation to obtain the second extraction liquid and the second solid separation. Among them, in the second treatment process, the dosage of ethanol, the soaking conditions, the ultrasonic extraction conditions, etc. are all within the ranges of the respective condition parameters described in the previous technical solution, and will not be elaborated here one by one. The method of solid - liquid separation has no special limitation and can be a conventional separation method in the art, such as filtration, etc. After the above 2 - time ultrasonic extractions, the first extraction liquid and the second extraction liquid are combined to obtain the extraction liquid of the ultrasonic extraction.

[0064] In the present invention, after the above ultrasonic extraction, the obtained extract is subjected to sedimentation. In the present invention, the sedimentation time is preferably 12 to 36 h, specifically 12 h, 16 h, 20 h, 24 h, 28 h, 32 h, 36 h. After the above sedimentation treatment, the supernatant is taken for membrane filtration. Among them, the pore size of the filtration membrane used is preferably 0.22 to 0.8 μm. After membrane filtration, the total extract is obtained.

[0065] [Regarding step A3]:

[0066] A3) Concentrate the total extract to obtain a concentrate; then mix the concentrate with an alcohol solvent to obtain durian extract A.

[0067] In the present invention, the degree of concentration is preferably such that the density reaches 1.08 to 1.18 kg / m 3 .

[0068] In the present invention, the alcohol solvent is preferably propylene glycol. In the present invention, the amount of the alcohol solvent used is preferably 10% to 30% of the mass of the concentrate, specifically 10%, 20%, 30%.

[0069] The present invention has no special limitation on the method of mixing the concentrate with the alcohol solvent, and the two can be mixed evenly according to the conventional mixing method in the art. After mixing, durian extract A is obtained.

[0070] Regarding step B) : Preparation of durian flavor component C

[0071] [Regarding step B1]:

[0072] B1) Take the pulp of fresh and mature durian and mix it with ethanol for steam reflux extraction to obtain an extract.

[0073] In the present invention, first take the pulp of fresh and mature durian; specifically, take fresh and mature durian, remove the shell, and obtain the pulp.

[0074] In the present invention, the ethanol is preferably ethanol with a mass fraction of 75% to 95%, specifically 75%, 80%, 85%, 90%, 95%. In the present invention, the dosage ratio of the pulp to the ethanol is preferably 1000 g∶(5000 - 10000) mL, specifically 1000 g∶5000 mL, 1000 g∶6000 mL, 1000 g∶7000 mL, 1000 g∶8000 mL, 1000 g∶9000 mL, 1000 g∶10000 mL.

[0075] In the present invention, the steam reflux extraction can be carried out in a distillation flask. Specifically, the pulp of fresh and ripe durian is put into the distillation flask, ethanol is added, and steam reflux extraction is carried out. In the present invention, the temperature of the steam reflux extraction is preferably 70-90 °C, specifically it can be 70 °C, 75 °C, 80 °C, 85 °C, 90 °C. The time of the steam reflux extraction is preferably 0.5-1.5 h, specifically it can be 0.5 h, 1.0 h, 1.5 h. After the above steam reflux extraction, an extract is obtained.

[0076] [Regarding step B2]:

[0077] B2) Filter and concentrate the extract obtained in step B1) to obtain a concentrate; then mix the concentrate with an alcohol solvent to obtain durian flavor substance B.

[0078] In the present invention, after the extract is obtained in step B1), the extract is filtered and concentrated. Among them, the concentration is preferably low-temperature concentration, specifically preferably the temperature is reduced to 45-55 °C for concentration, specifically it can be 45 °C, 50 °C, 55 °C. In the present invention, the degree of concentration is preferably such that the density reaches 0.95-1.1 kg / m 3 .

[0079] In the present invention, after the above concentration, the obtained concentrate is then mixed with an alcohol solvent. Among them, the alcohol solvent is preferably propylene glycol. The mass ratio of the concentrate to the alcohol solvent is preferably 1:(1-3). The present invention has no special limitation on the mixing method, and the two can be mixed evenly according to the conventional mixing method in the art. After mixing, durian flavor substance B is obtained.

[0080] [Regarding step B3]:

[0081] B3) Perform molecular distillation on the durian flavor substance B, collect the light components, and obtain durian flavor component C.

[0082] In the present invention, the feeding rate of the molecular distillation is preferably 10-20 g / min, specifically it can be 10 g / min, 15 g / min, 20 g / min. The scraping film speed of the molecular distillation is preferably 300-500 r / min, specifically it can be 300 r / min, 350 r / min, 400 r / min, 450 r / min, 500 r / min. The distillation temperature of the molecular distillation is preferably 40-60 °C, specifically it can be 40 °C, 45 °C, 50 °C, 55 °C, 60 °C. The distillation pressure of the molecular distillation is preferably 10-30 Pa, specifically it can be 10 Pa, 15 Pa, 20 Pa, 25 Pa, 30 Pa. After the above molecular distillation, the light components are collected to obtain durian flavor component C.

[0083] The present invention has no order restriction on the above steps A) and B).

[0084] Regarding step C) : Preparation of durian extract for tobacco

[0085] Mix the durian extract A with the durian flavor component C to obtain the durian extract for tobacco.

[0086] In the present invention, the dosage of the durian flavor component C is preferably 2% - 10% of the mass of the durian extract A, specifically 2%, 3%, 4%, 5%, 6%, 7%, 8%, 9%, 10%. The present invention has no special restriction on the way of mixing the durian extract A with the durian flavor component C, and the two can be mixed evenly according to the conventional mixing method in the art. After the above mixing, a durian extract product for tobacco is obtained.

[0087] The present invention also provides a durian extract for tobacco prepared by the preparation method described in the above technical solution.

[0088] The present invention also provides an application of the durian extract for tobacco described in the above technical solution in cigarettes. In the present invention, the durian extract for tobacco is used as a flavor / flavoring agent in cigarettes, and its application process is the same as that of conventional flavor / flavoring agents. In the present invention, the dosage of the durian extract for tobacco is preferably 0.01% - 0.1% of the mass of the cut tobacco in the cigarette, specifically 0.01%, 0.02%, 0.03%, 0.04%, 0.05%, 0.06%, 0.07%, 0.08%, 0.09%, 0.1%.

[0089] The present invention also provides a cigarette, wherein the flavoring agent is the durian extract for tobacco described in the above technical solution. In the present invention, the dosage of the durian extract for tobacco is preferably 0.01% - 0.1% of the mass of the cut tobacco in the cigarette, specifically 0.01%, 0.02%, 0.03%, 0.04%, 0.05%, 0.06%, 0.07%, 0.08%, 0.09%, 0.1%.

[0090] The present invention provides a method for preparing a durian extract for cigarettes. Durian extract A is prepared from durian shells, and durian flavor component C is prepared from durian pulp. Then, durian extract A and durian flavor component C are combined to prepare the durian extract for cigarettes. Specifically, for durian shells, they are baked to enhance fragrance through pre-treatment by frying before being extracted with ethanol and concentrated to obtain durian extract A, thereby improving the aroma quality of the prepared durian extract and making it better match the natural fragrance of tobacco. For durian pulp, it is extracted by steam reflux with ethanol, then filtered, concentrated, mixed with an alcohol solvent, and then subjected to molecular distillation to obtain durian flavor component C. Finally, durian extract A and durian flavor component C are combined in a certain proportion to obtain the durian extract product for cigarettes. The present invention separately treats durian shells and durian pulp, and then combines the two treatment products. The finally obtained durian extract product for cigarettes can be well coordinated with the cigarette aroma. After being added to the tobacco leaf group formula, it has a good promoting effect on the smoke form, improves the aroma texture, makes the smoke soft and delicate, enhances the richness of the aftertaste, and has a good promoting and improving effect on the tobacco quality.

[0091] To further understand the present invention, the preferred embodiments of the present invention are described below in conjunction with examples. However, it should be understood that these descriptions are only for further explaining the features and advantages of the present invention, rather than limiting the claims of the present invention.

[0092] Example 1

[0093] A) Preparation of durian extract A:

[0094] A1) 1000 g of dry durian shells are placed in an electric medicine frying machine (model CY-550, produced by Nanjing Donglong Machinery Technology Co., Ltd.) for frying treatment. The frying temperature is 150 °C and the time is 15 min. Then it is crushed to 60 meshes to obtain durian shell powder.

[0095] A2) 5000 mL of ethanol (ethanol mass fraction is 70%) is added to the durian shell powder and soaked at 50 °C for 30 min. Then, the first ultrasonic extraction is carried out (ultrasonic frequency 60 KHz, temperature 50 °C, time 30 min). After that, filtration is carried out to obtain the first extraction liquid and the first solid separation. Then, ethanol is added to the first solid separation again for soaking, and the second ultrasonic extraction is carried out (during the second treatment, the dosage of ethanol, soaking conditions, ultrasonic extraction conditions, etc. are the same as those of the first treatment). After that, filtration is carried out to obtain the second extraction liquid and the second solid separation. The first extraction liquid and the second extraction liquid are combined to obtain the extraction liquid of ultrasonic extraction.

[0096] The above extraction liquid is allowed to settle at room temperature for 12 h, and then the supernatant is taken for membrane filtration (the pore size of the filter membrane is 0.8 μm) to obtain the total extraction liquid.

[0097] A3) Concentrate the obtained total extract to a density of 1.1 kg / m 3 , and then add propylene glycol (the dosage of propylene glycol is 20% of the mass of the concentrate) to the concentrate, mix evenly to obtain durian extract A.

[0098] B) Prepare durian flavor component C

[0099] B1) Take fresh and ripe durians, remove the shells, put the pulp (1000 g in total) into a distillation flask, add 6000 mL of ethanol (the mass fraction of ethanol is 75%), and carry out steam reflux extraction (temperature 90 °C, time 1 h) to obtain an extract.

[0100] B2) Filter the extract and concentrate it at low temperature to a density of 1.05 kg / m 3 to obtain a concentrate. Add propylene glycol to the concentrate (the mass ratio of the concentrate to propylene glycol is 1:2), mix evenly to obtain durian flavor substance B.

[0101] B3) Carry out molecular distillation on durian flavor substance B under the conditions of a feeding rate of 15 g / min, a scraping film speed of 300 r / min, a distillation temperature of 50 °C, and a distillation pressure of 15 Pa, and collect the light components to obtain durian flavor component C.

[0102] C) Prepare durian extract product D for cigarettes

[0103] Add the durian flavor component C obtained in step B) to the durian extract A obtained in step A) (the dosage of durian flavor component C is 2% of the mass of durian extract A), mix evenly to obtain durian extract product D for cigarettes.

[0104] Control sample: Durian whole fruit extract E

[0105] The preparation process is as follows:

[0106] 1) Take fresh and ripe durians, separate the shells and the pulp, put them together into a distillation flask, add 8 times the weight of ethanol (the mass fraction of ethanol is 75%), and carry out steam reflux extraction for 2 h to obtain an extract.

[0107] 2) Filter the extract and concentrate it to a density of 1.05 kg / m 3 to obtain a concentrate. Add 20% propylene glycol to the concentrate, mix evenly to obtain durian whole fruit extract E.

[0108] Product testing :

[0109] Sensory evaluation test:

[0110] Blow out the cut tobacco of the finished cigarette and place it under the conditions of temperature (22±1)°C and relative humidity (60±2)%. Take 5 portions of 30 g of the well-balanced cut tobacco, and spray 0.05% of the durian extract ABCD prepared by the present invention and the extract E of the whole durian fruit respectively. Then put them into a constant temperature and humidity box to balance for 48 h. Take the corresponding brand of cigarette tubes to make cigarettes, and a professional group consisting of 7 people conducts sensory evaluation on the added spices. A total of 6 indicators, namely "luster", "aroma", "harmony", "off-flavor", "irritation", and "aftertaste", are scored. The score ranges for the corresponding indicators are: 0-5 points, 0-30 points, 0-10 points, 0-10 points, 0-20 points, and 0-25 points. The sensory quality score is the total score of the above 6 items. The test results are shown in Table 1. Among them, the score of each item is the average value of 7 sample data (the higher the score, the better the test effect of the corresponding item. For example, the higher the luster score, the better the gloss; the higher the irritation score, the lower the irritation and the better the smoker's feeling; and so on).

[0111] Table 1: Sensory evaluation results

[0112]

[0113] Example 2

[0114] A) Preparation of durian extract A:

[0115] A1) Place 1000 g of dried durian shells in an electrothermal medicine stir-frying machine (model CY-550, produced by Nanjing Donglong Machinery Technology Co., Ltd.) for stir-frying treatment. The stir-frying temperature is 180°C and the time is 10 min. Then crush it to 60 meshes to obtain durian shell powder.

[0116] A2) Add 10000 mL of ethanol (ethanol mass fraction is 70%) to the durian shell powder, and soak it at 60°C for 30 min; then conduct the first ultrasonic extraction (ultrasonic frequency 60 KHz, temperature 50°C, time 30 min). After that, filter to obtain the first extraction solution and the first solid separation. Then add ethanol to soak the first solid separation again, and conduct the second ultrasonic extraction (during the second treatment process, the dosage of ethanol, soaking conditions, ultrasonic extraction conditions, etc. are the same as those in the first treatment). After that, filter to obtain the second extraction solution and the second solid separation. Combine the first extraction solution and the second extraction solution to obtain the extraction solution by ultrasonic extraction.

[0117] Let the above extraction solution settle at room temperature for 24 h, and then take the supernatant for membrane filtration (the pore size of the filter membrane is 0.22 μm) to obtain the total extraction solution.

[0118] A3) Concentrate the obtained total extraction solution to a density of 1.1 kg / m 3, then add propylene glycol to the concentrate (the dosage of propylene glycol is 10% of the mass of the concentrate), and mix evenly to obtain durian extract A.

[0119] B) Preparation of durian flavor component C

[0120] B1) Take fresh and ripe durians, remove the shells, put the pulp (1000 g in total) into a distillation flask, add 8000 mL of ethanol (the mass fraction of ethanol is 85%), and carry out steam reflux extraction (temperature 80 °C, time 1 h) to obtain an extract.

[0121] B2) Filter the extract and concentrate it at low temperature to a density of 1.05 kg / m 3 to obtain a concentrate. Add propylene glycol to the concentrate (the mass ratio of the concentrate to propylene glycol is 1:2), and mix evenly to obtain durian flavor substance B.

[0122] B3) Carry out molecular distillation on durian flavor substance B under the conditions of a feeding rate of 20 g / min, a scraping film speed of 400 r / min, a distillation temperature of 50 °C, and a distillation pressure of 30 Pa, and collect the light components to obtain durian flavor component C.

[0123] C) Preparation of durian extract product D for cigarettes

[0124] Add the durian flavor component C obtained in step B) to the durian extract A obtained in step A) (the dosage of durian flavor component C is 3% of the mass of durian extract A), and mix evenly to obtain durian extract product D for cigarettes.

[0125] Control sample: Whole durian extract E (same as in Example 1)

[0126] Product testing :

[0127] Sensory evaluation test:

[0128] Test the samples in Example 2 according to the test method in Example 1, and the results are shown in Table 2.

[0129] Table 2: Sensory evaluation results

[0130]

[0131] It can be seen from the scoring and evaluation results in Tables 1-2 that after adding the durian extract product D prepared by the present invention to cigarettes, the product can better coordinate with the cigarette flavor, has a better improvement effect on the smoke morphology after being added to the tobacco leaf group formula, at the same time improves the aroma quality, makes the smoke soft and delicate, enhances the richness of the aftertaste, and has a very good improvement effect on the tobacco quality.

[0132] In this article, specific examples are used to elaborate on the principles and implementation modes of the present invention. The description of the above embodiments is only used to help understand the method and its core idea of the present invention, including the best mode, and also enables any person skilled in the art to practice the present invention, including manufacturing and using any device or system, and implementing any combined method. It should be noted that for those of ordinary skill in the art in the technical field, without departing from the principles of the present invention, several improvements and modifications can be made to the present invention, and these improvements and modifications also fall within the protection scope of the claims of the present invention. The protection scope of the present invention patent is defined by the claims and may include other embodiments that can be conceived by those skilled in the art. If these other embodiments have structural elements similar to the literal expression of the claims, or if they include equivalent structural elements that have no substantial difference from the literal expression of the claims, then these other embodiments should also be included within the scope of the claims.

Claims

1. A preparation method of a durian extract for cigarettes, characterized in that, It includes the following steps: A) Prepare durian extract A: A1) Bake and enhance the fragrance of the dried durian shell, and then crush it to obtain crushed durian shell; A2) Mix the crushed durian shell with ethanol for soaking, and then perform ultrasonic extraction. After that, sediment the obtained extract, and then take the supernatant for membrane filtration to obtain the total extract; A3) Concentrate the total extract to obtain a concentrate; then mix the concentrate with an alcohol solvent to obtain durian extract A; B) Prepare durian flavor component C: B1) Take the pulp of fresh and ripe durian and mix it with ethanol for steam reflux extraction to obtain an extract; B2) Filter and concentrate the extract obtained in step B1) to obtain a concentrate; then mix the concentrate with an alcohol solvent to obtain durian flavor substance B; B3) Perform molecular distillation on the durian flavor substance B, and collect the light components to obtain durian flavor component C; C) Prepare durian extract for tobacco use: Mix the durian extract A with the durian flavor component C to obtain durian extract for tobacco use; Among them, there is no order restriction between step A) and step B).

2. The preparation method according to claim 1, characterized in that, In step A1), the operation process of the baking and fragrance enhancement treatment is: place the dried durian shell in an electric medicine stir-frying machine for frying treatment; The temperature of the frying treatment is 120 - 180 °C, and the time is 10 - 20 min.

3. The preparation method according to claim 1, characterized in that, In step A2), the temperature of the soaking is 40 - 60 °C, and the time is 30 - 60 min; The ultrasonic frequency of the ultrasonic extraction is 40 - 60 KHz, the temperature is 40 - 60 °C, and the time is 20 - 60 min.

4. The preparation method according to claim 1, characterized in that, In step A2), the number of times of ultrasonic extraction is 2 times. The specific operation process includes: mix the crushed durian shell with ethanol for soaking, and then perform the first ultrasonic extraction. After that, perform solid-liquid separation to obtain the first extract and the first solid separation; then mix the first solid separation with ethanol for soaking, and then perform the second ultrasonic extraction. After that, perform solid-liquid separation to obtain the second extract and the second solid separation.

5. The preparation method according to claim 1, characterized in that, In step A2), the sedimentation time is 12 - 36 h; the pore size of the filtration membrane used for membrane filtration is 0.22 - 0.8 μm.

6. The preparation method according to claim 1, characterized in that, In step A3): The degree of concentration is such that the density reaches 1.08 to 1.18 kg / m 3 ; The alcohol solvent is propylene glycol; The dosage of the alcohol solvent is 10% - 30% of the mass of the concentrate.

7. The preparation method according to claim 1, characterized in that, In step B1), the temperature of the steam reflux extraction is 70 - 90 °C, and the time is 0.5 - 1.5 h; In step B2), the degree of concentration is such that the density reaches 0.95 - 1.1 kg / m 3 .

8. The preparation method according to claim 1, characterized in that, In step B3), the feeding speed of the molecular distillation is 10 - 20 g / min, the scraping film speed is 300 - 500 r / min, the distillation temperature is 40 - 60 °C, and the distillation pressure is 10 - 30 Pa; In step C), the dosage of the durian flavor component C is 2% - 10% of the mass of the durian extract A.

9. A durian extract for tobacco use prepared by the preparation method according to any one of claims 1 - 8.

10. A cigarette, characterized in that, The essence therein is the durian extract for tobacco use according to claim 9.

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