CN113652304B - Preparation method of blueberry extract and application of blueberry extract in heating cigarettes - Google Patents
Preparation method of blueberry extract and application of blueberry extract in heating cigarettes Download PDFInfo
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- CN113652304B CN113652304B CN202110882848.1A CN202110882848A CN113652304B CN 113652304 B CN113652304 B CN 113652304B CN 202110882848 A CN202110882848 A CN 202110882848A CN 113652304 B CN113652304 B CN 113652304B
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- 235000019216 blueberry extract Nutrition 0.000 title claims abstract description 41
- 229940055416 blueberry extract Drugs 0.000 title claims abstract description 40
- 235000019504 cigarettes Nutrition 0.000 title claims abstract description 36
- 238000010438 heat treatment Methods 0.000 title claims abstract description 19
- 238000002360 preparation method Methods 0.000 title claims abstract description 14
- 240000000851 Vaccinium corymbosum Species 0.000 claims abstract description 64
- 235000003095 Vaccinium corymbosum Nutrition 0.000 claims abstract description 64
- 235000017537 Vaccinium myrtillus Nutrition 0.000 claims abstract description 64
- 235000021014 blueberries Nutrition 0.000 claims abstract description 64
- 235000013399 edible fruits Nutrition 0.000 claims abstract description 25
- 239000011259 mixed solution Substances 0.000 claims abstract description 24
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 24
- 238000002156 mixing Methods 0.000 claims abstract description 19
- 239000011268 mixed slurry Substances 0.000 claims abstract description 18
- 239000012141 concentrate Substances 0.000 claims abstract description 16
- 239000008367 deionised water Substances 0.000 claims abstract description 12
- 229910021641 deionized water Inorganic materials 0.000 claims abstract description 12
- 239000012153 distilled water Substances 0.000 claims abstract description 11
- 239000003960 organic solvent Substances 0.000 claims abstract description 10
- 239000000243 solution Substances 0.000 claims abstract description 10
- 239000007791 liquid phase Substances 0.000 claims abstract description 9
- 238000000926 separation method Methods 0.000 claims abstract description 9
- 238000011049 filling Methods 0.000 claims abstract description 8
- 238000007789 sealing Methods 0.000 claims abstract description 8
- 239000007788 liquid Substances 0.000 claims abstract description 7
- 238000003756 stirring Methods 0.000 claims abstract description 6
- 238000005406 washing Methods 0.000 claims abstract description 6
- 239000002002 slurry Substances 0.000 claims abstract description 3
- DNIAPMSPPWPWGF-UHFFFAOYSA-N Propylene glycol Chemical compound CC(O)CO DNIAPMSPPWPWGF-UHFFFAOYSA-N 0.000 claims description 18
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 16
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 14
- 238000000034 method Methods 0.000 claims description 12
- 238000006243 chemical reaction Methods 0.000 claims description 9
- 229910052757 nitrogen Inorganic materials 0.000 claims description 7
- 239000007864 aqueous solution Substances 0.000 claims description 6
- 238000000605 extraction Methods 0.000 claims description 6
- 235000002637 Nicotiana tabacum Nutrition 0.000 abstract description 15
- 239000003205 fragrance Substances 0.000 abstract description 11
- 235000009508 confectionery Nutrition 0.000 abstract description 8
- 235000013599 spices Nutrition 0.000 abstract description 6
- 230000007794 irritation Effects 0.000 abstract description 4
- 206010013911 Dysgeusia Diseases 0.000 abstract description 3
- 239000007789 gas Substances 0.000 abstract description 3
- 239000011261 inert gas Substances 0.000 abstract description 3
- 244000061176 Nicotiana tabacum Species 0.000 abstract 2
- QMYDVDBERNLWKB-UHFFFAOYSA-N propane-1,2-diol;hydrate Chemical compound O.CC(O)CO QMYDVDBERNLWKB-UHFFFAOYSA-N 0.000 abstract 1
- 241000208125 Nicotiana Species 0.000 description 13
- 239000000203 mixture Substances 0.000 description 9
- 238000005292 vacuum distillation Methods 0.000 description 6
- 239000000779 smoke Substances 0.000 description 5
- 239000000126 substance Substances 0.000 description 5
- 239000006228 supernatant Substances 0.000 description 4
- 238000005119 centrifugation Methods 0.000 description 3
- 238000004821 distillation Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000014509 gene expression Effects 0.000 description 3
- 239000000047 product Substances 0.000 description 3
- 239000000654 additive Substances 0.000 description 2
- 230000000996 additive effect Effects 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 229910001873 dinitrogen Inorganic materials 0.000 description 2
- 238000011156 evaluation Methods 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000002304 perfume Substances 0.000 description 2
- 230000000391 smoking effect Effects 0.000 description 2
- 238000005303 weighing Methods 0.000 description 2
- SNICXCGAKADSCV-JTQLQIEISA-N (-)-Nicotine Chemical compound CN1CCC[C@H]1C1=CC=CN=C1 SNICXCGAKADSCV-JTQLQIEISA-N 0.000 description 1
- 239000001913 cellulose Substances 0.000 description 1
- 229920002678 cellulose Polymers 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 239000006071 cream Substances 0.000 description 1
- 230000001627 detrimental effect Effects 0.000 description 1
- 238000007865 diluting Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 239000000284 extract Substances 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000000796 flavoring agent Substances 0.000 description 1
- 235000019634 flavors Nutrition 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000008267 milk Substances 0.000 description 1
- 210000004080 milk Anatomy 0.000 description 1
- 235000013336 milk Nutrition 0.000 description 1
- 230000003278 mimic effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229960002715 nicotine Drugs 0.000 description 1
- SNICXCGAKADSCV-UHFFFAOYSA-N nicotine Natural products CN1CCCC1C1=CC=CN=C1 SNICXCGAKADSCV-UHFFFAOYSA-N 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
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- 230000009467 reduction Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000013049 sediment Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 230000007480 spreading Effects 0.000 description 1
- 230000000638 stimulation Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 235000019505 tobacco product Nutrition 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11B—PRODUCING, e.g. BY PRESSING RAW MATERIALS OR BY EXTRACTION FROM WASTE MATERIALS, REFINING OR PRESERVING FATS, FATTY SUBSTANCES, e.g. LANOLIN, FATTY OILS OR WAXES; ESSENTIAL OILS; PERFUMES
- C11B9/00—Essential oils; Perfumes
- C11B9/0003—Compounds of unspecified constitution defined by the chemical reaction for their preparation
-
- A—HUMAN NECESSITIES
- A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
- A24B—MANUFACTURE OR PREPARATION OF TOBACCO FOR SMOKING OR CHEWING; TOBACCO; SNUFF
- A24B15/00—Chemical features or treatment of tobacco; Tobacco substitutes, e.g. in liquid form
- A24B15/18—Treatment of tobacco products or tobacco substitutes
- A24B15/24—Treatment of tobacco products or tobacco substitutes by extraction; Tobacco extracts
- A24B15/26—Use of organic solvents for extraction
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11B—PRODUCING, e.g. BY PRESSING RAW MATERIALS OR BY EXTRACTION FROM WASTE MATERIALS, REFINING OR PRESERVING FATS, FATTY SUBSTANCES, e.g. LANOLIN, FATTY OILS OR WAXES; ESSENTIAL OILS; PERFUMES
- C11B9/00—Essential oils; Perfumes
- C11B9/02—Recovery or refining of essential oils from raw materials
- C11B9/025—Recovery by solvent extraction
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11B—PRODUCING, e.g. BY PRESSING RAW MATERIALS OR BY EXTRACTION FROM WASTE MATERIALS, REFINING OR PRESERVING FATS, FATTY SUBSTANCES, e.g. LANOLIN, FATTY OILS OR WAXES; ESSENTIAL OILS; PERFUMES
- C11B9/00—Essential oils; Perfumes
- C11B9/02—Recovery or refining of essential oils from raw materials
- C11B9/027—Recovery of volatiles by distillation or stripping
Abstract
The invention discloses a preparation method of a blueberry extract and application thereof in heating cigarettes, wherein the preparation method comprises the following steps: washing blueberry fruits with distilled water, stirring and crushing the blueberry fruits, and adding deionized water to form mixed slurry; filling inert gas into the mixed slurry, sealing, and reacting for a period of time to obtain a blueberry slurry mixed solution; adding an organic solvent into the blueberry pulp mixed solution, and fully and uniformly mixing to obtain a blueberry mixed solution; carrying out solid-liquid separation on the blueberry mixed solution by adopting a centrifugal machine; vacuum distilling the separated liquid phase to obtain blueberry concentrate; uniformly mixing the blueberry concentrate with equal mass and the propylene glycol water solution to obtain the blueberry extract. The blueberry extract prepared by the invention can be used as a tobacco spice to well improve the richness of tobacco aroma of the heated cigarettes, effectively reduce miscellaneous gases and irritation, improve aftertaste and oral comfort, improve the durability of aroma and highlight the characteristics of sweet fragrance and sweet feeling.
Description
Technical Field
The invention relates to the field of tobacco essence and spice, in particular to a preparation method of a blueberry extract and application of the blueberry extract in heating cigarettes.
Background
In recent years, with the rapid development of social economy and the rapid improvement of the living standard of people, the vast consumers put forward the requirements of low tar, low stimulation, high comfort and the like on the quality of the internal quality of tobacco consumer products. These demands have prompted the continuous in-depth advancement of the "harm and tar reduction" engineering in the tobacco industry, and while improving traditional cigarettes, new tobacco products have appeared in succession, internationally and domestically, with heating cigarettes being one of the fastest growing ones.
The tobacco shred in the cigarette bullet is heated by the heating device to volatilize nicotine and aroma substances in the tobacco shred, and the generated smoke can meet the requirements of smokers. As the heating temperature of the heated cigarette is far lower than the combustion temperature of the traditional cigarette, the generated harmful substances such as tar are less. However, most of non-volatile substances cannot be decomposed into smoke due to lower working temperature of the heated cigarettes, so that the smoke concentration and the aroma quantity cannot reach the state of the traditional cigarettes, and the cigarettes need to be complemented by flavoring and feeding. In addition, the flavoring and feeding can also endow the heated cigarettes with different style characteristics so as to meet the requirements of different consumers. Thus, flavoring has become the most critical core technology for heating cigarettes.
There are a number of fragrances currently formulated using synthetic fragrance-like materials that mimic the natural fruit fragrance. However, synthetic fragrances are difficult to achieve in a similar manner as natural fragrances; secondly, even if the synthetic spice and the target natural spice reach higher similarity, the problems of unobtrusive natural spice style, poor coordination and the like often occur when the cigarette is used for flavoring; thirdly, a better essence blending technology is basically mastered in the hands of foreign essence companies; fourth, the synthetic essence products provided by the essence companies at home and abroad can not provide core technology.
Research shows that the blueberry extract has prominent fruit fragrance, paste fragrance and clear fragrance, and has ideal fragrance and fragrance expression form. The blueberry extract can be applied to cigarettes to obviously improve and modify the smoke of the cigarettes, increase the sweet feeling and the clarity of the smoke aroma, and reduce the irritation, in particular to endow the cigarettes with natural aroma, and meanwhile, the blueberry extract has various aroma characteristics of fruit aroma, cream aroma, clear aroma, milk aroma, sweet aroma and the like, and can play a role in promoting the aroma type and aroma expression of tobacco. Moreover, the blueberry essence sold in the market has a blending trace, is inapplicable in the application of the product, and has the effects that the effect cannot be expected, the technical level is uncontrollable, and the development progress of the fruit style heating cigarette is affected.
Therefore, how to provide a method for preparing blueberry extract from blueberry fruits is a technical problem to be solved in the field.
Disclosure of Invention
An object of the present invention is to provide a new technical solution of a method for preparing blueberry extract from blueberry fruit.
According to a first aspect of the present invention, there is provided a method of preparing a blueberry extract.
The preparation method of the blueberry extract comprises the following steps:
step (1):
homogenizing: washing blueberry fruits with distilled water, stirring and crushing the blueberry fruits, and adding deionized water to form mixed slurry;
step (2):
reaction stage: filling inert gas into the mixed slurry, sealing, and reacting for a period of time at a certain temperature and pressure to obtain a blueberry slurry mixed solution;
step (3):
mixing and dissolving: adding an organic solvent into the blueberry pulp mixed solution, and fully and uniformly mixing to obtain a blueberry mixed solution;
step (4):
extraction: carrying out solid-liquid separation on the blueberry mixed solution by adopting a centrifugal machine;
step (5):
concentration stage: vacuum distilling the separated liquid phase to obtain blueberry concentrate;
step (6):
the preparation stage comprises the following steps: uniformly mixing the blueberry concentrate with the same mass and the propylene glycol aqueous solution with the mass percentage of 30-50%, thus obtaining the blueberry extract.
Optionally, the step (1) specifically includes:
homogenizing: washing fructus Myrtilli with distilled water, placing fructus Myrtilli in a refiner at 12000-20000r/min, crushing at 50-60deg.C, stirring for 3-5min, and adding deionized water to obtain mixed slurry.
Optionally, in the step (1), the mass ratio of the blueberry fruit to the deionized water is 1 (10-30).
Optionally, the step (2) specifically includes:
reaction stage: adding the mixed slurry into a reaction kettle, sealing, filling nitrogen, and reacting for 10-30min at 180-300 ℃ and 3-15MPa to obtain the blueberry pulp mixed solution.
Optionally, the organic solvent in the step (3) is a 95wt% ethanol solution.
Optionally, the mass ratio of the organic solvent to the blueberry pulp mixed solution in the step (3) is 1 (0.5-2).
Optionally, the working conditions of the solid-liquid separation in the step (4) are as follows:
the rotating speed of the centrifugal machine is 3000-5000 r/min, and the time is 5-7min.
Optionally, the step (5) specifically includes:
concentration stage: and (3) carrying out vacuum distillation on the separated liquid phase at 45-55 ℃ and under the pressure condition of 10-80Pa to obtain the blueberry concentrate.
Optionally, in the step (5), concentrating the liquid phase to 18-23% of the mass of the blueberry fruit to obtain the blueberry concentrate.
According to a second aspect of the present invention there is provided the use of a blueberry extract in a heated cigarette.
The blueberry extract is applied to heating cigarettes, and the adding amount of the blueberry extract is controlled to be 0.5-8wt%.
The preparation method of the blueberry extract disclosed by the invention has the following advantages:
(1) The preparation method of the blueberry extract suitable for heating cigarettes is developed by taking fresh blueberry fruits as an initial raw material, controlling the water state in a high-temperature high-pressure reaction and using a new reaction medium;
(2) The obtained extract has longer acting effect and slower attenuation compared with the blended blueberry essence by fully processing the pure natural blueberry, is different from the traditional cigarette feeding and takes part in combustion, and is more suitable for the working principle that the heated cigarette evaporates the aroma by heating;
(3) Compared with the traditional extraction mode, the invention has more sufficient extraction, and the generated fragrant substances are more abundant and finer;
(4) The preparation time of the blueberry extract is greatly shortened by a novel preparation method, and the extraction process is shortened to within 30 minutes from more than 3 hours in the conventional process;
(5) By the centrifugal filtration treatment, the substances which are detrimental to the heating of cigarettes, such as cellulose and other sediments, and affect the smoking quality are removed or decomposed.
The blueberry extract prepared by the invention can be used as a tobacco spice to well improve the richness of tobacco aroma of the heated cigarettes, effectively reduce miscellaneous gases and irritation, improve aftertaste and oral comfort, improve the durability of aroma and highlight the characteristics of sweet fragrance and sweet feeling.
Detailed Description
Various exemplary embodiments of the invention will now be described in detail. It should be noted that: the relative arrangement of the components and steps, numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present invention unless it is specifically stated otherwise.
The following description of at least one exemplary embodiment is merely exemplary in nature and is in no way intended to limit the invention, its application, or uses.
Techniques, methods, and apparatus known to one of ordinary skill in the relevant art may not be discussed in detail, but are intended to be part of the specification where appropriate.
In all examples shown and discussed herein, any specific values should be construed as merely illustrative, and not a limitation. Thus, other examples of exemplary embodiments may have different values.
The preparation method of the blueberry extract disclosed by the disclosure comprises the following steps:
step (1):
homogenizing: washing blueberry fruits with distilled water, stirring and crushing the blueberry fruits, and adding deionized water to form mixed slurry.
Step (1) may be specifically as follows:
homogenizing: washing fructus Myrtilli with distilled water, placing fructus Myrtilli in a refiner at 12000-20000r/min, crushing at 50-60deg.C, stirring for 3-5min, and adding deionized water to obtain mixed slurry.
The mass ratio of the blueberry fruits to the deionized water in the step (1) can be 1 (10-30).
Step (2):
reaction stage: and (3) filling inert gas into the mixed slurry, sealing, and reacting for a period of time at a certain temperature and pressure to obtain the blueberry pulp mixed solution.
Step (2) may be specifically as follows:
reaction stage: adding the mixed slurry into a reaction kettle, sealing, filling nitrogen, and reacting for 10-30min at 180-300 ℃ and 3-15MPa to obtain the blueberry pulp mixed solution.
Step (3):
mixing and dissolving: adding an organic solvent into the blueberry pulp mixed solution, and fully and uniformly mixing to obtain the blueberry mixed solution.
The organic solvent in step (3) may be a 95wt% ethanol solution.
The mass ratio of the organic solvent to the blueberry pulp mixed solution in the step (3) can be 1 (0.5-2).
Step (4):
extraction: and (5) carrying out solid-liquid separation on the blueberry mixed solution by adopting a centrifugal machine.
The working conditions of the solid-liquid separation in the step (4) can be as follows:
the rotating speed of the centrifugal machine is 3000-5000 r/min, and the time is 5-7min.
Step (5):
concentration stage: and (3) carrying out vacuum distillation on the separated liquid phase to obtain the blueberry concentrate.
Step (5) may be specifically as follows:
concentration stage: and (3) carrying out vacuum distillation on the separated liquid phase at 45-55 ℃ and under the pressure condition of 10-80Pa to obtain the blueberry concentrate.
In the step (5), the liquid phase is concentrated to 18-23% of the mass of blueberry fruit to obtain blueberry concentrate.
Step (6):
the preparation stage comprises the following steps: uniformly mixing the blueberry concentrate with the same mass and the propylene glycol aqueous solution with the mass percentage of 30-50%, thus obtaining the blueberry extract.
The blueberry extract prepared by the method can be added into the cut tobacco of the heated cigarettes in an amount of 0.5-8wt%.
The experimental procedures used in the examples below are conventional, and the materials and reagents used, unless otherwise indicated, are commercially available, and the equipment used in the experiments, unless otherwise indicated, are well known to those skilled in the art.
Example 1
60g of fresh blueberry fruit is washed by distilled water, put into a refiner, 600g of deionized water is added, and the fruit is stirred and smashed to form mixed slurry. In a 1000mL autoclave reactor, 660g of mixed slurry after mixing and crushing is added, the mixture is covered and sealed, an air inlet hole and an air outlet hole are opened, nitrogen is filled in through the air inlet hole, internal air is discharged through the air outlet hole, then the air outlet hole is closed, and nitrogen is filled again. The autoclave reactor temperature was adjusted to 200℃and the pressure 3.0MPa, maintained for 25min. The reacted blueberry pulp mixture is taken out, 500g of ethanol solution (95 wt%) is added, and the mixture is placed on a shaker to be mixed for 10min in a shaking way. And (3) placing the mixed blueberry mixed solution into a centrifugal machine for centrifugal separation for 5min, wherein the rotation speed of the centrifugal machine is 5000 r/min. And (3) placing the supernatant after centrifugation in a distillation flask for vacuum distillation at 45 ℃, under the pressure of 10Pa and the rotation speed of 60 r/min, and concentrating to 12g. And adding 12g of 30wt% propylene glycol aqueous solution into the blueberry concentrate, and vibrating and uniformly mixing to obtain the blueberry extract S1.
Example 2
50g of fresh blueberry fruit is washed by distilled water, put into a refiner, 600g of deionized water is added, and the fruit is stirred and smashed to form mixed slurry. In a 1000mL autoclave reactor, 650g of mixed slurry after mixing and crushing is added, the mixture is covered and sealed, an air inlet hole and an air outlet hole are opened, nitrogen is filled in through the air inlet hole, internal air is discharged through the air outlet hole, then the air outlet hole is closed, and nitrogen is filled again. The autoclave reactor temperature was adjusted to 250℃and the pressure to 4.0MPa, and maintained for 25 minutes. The reacted blueberry pulp mixture is taken out, 500g of ethanol solution (95 wt%) is added, and the mixture is placed on a shaker to be mixed for 10min in a shaking way. And (3) placing the mixed blueberry mixed solution into a centrifugal machine for centrifugal separation for 5min, wherein the rotation speed of the centrifugal machine is 5000 r/min. And (3) placing the supernatant after centrifugation in a distillation flask for vacuum distillation at 45 ℃ under the pressure of 10Pa and the rotating speed of 60 r/min, and concentrating to 10g. And adding 10g of 30wt% propylene glycol aqueous solution into the blueberry concentrate, and vibrating and uniformly mixing to obtain the blueberry extract S2.
Example 3
40g of fresh blueberry fruit is washed by distilled water, put into a refiner, 600g of deionized water is added, and the fruit is stirred and smashed to form mixed slurry. Adding 640g of mixed slurry after mixing and crushing into a 1000mL autoclave reactor, sealing the autoclave reactor with a cover, opening an air inlet hole and an air outlet hole, filling nitrogen gas through the air inlet hole, discharging internal air through the air outlet hole, closing the air outlet hole, and filling nitrogen gas again. The autoclave reactor temperature was adjusted to 300℃and the pressure to 8.0MPa, and maintained for 25 minutes. The reacted blueberry pulp mixture is taken out, 500g of ethanol solution (95 wt%) is added, and the mixture is placed on a shaker to be mixed for 10min in a shaking way. And (3) centrifuging the mixed blueberry mixed solution in a centrifuge at the rotation speed of 5000 r/min for 5min, taking the supernatant after centrifugation, placing the supernatant in a distillation flask for vacuum distillation at the temperature of 45 ℃ and the pressure of 10Pa at the rotation speed of 60 r/min, and concentrating to 8g. And adding 8g of 30wt% propylene glycol aqueous solution into the blueberry concentrate, and vibrating and uniformly mixing to obtain the blueberry extract S3.
Application test of blueberry extract as tobacco flavor in heated cigarettes:
weighing a certain amount of blueberry extract S2, and diluting into 10% (mass percent) solution with ethanol and distilled water (volume ratio is 1:4) for later use; weighing 100g of heated cigarette slice shreds with perfume, uniformly spreading in a clean tray, uniformly spraying perfume solution on slice shreds to obtain cut tobacco with blueberry extract of 0, 0.50%o, 1.00%o, 2.50%o, 4.00%o, 5.50%o, 8.00%o, and sealing for 2 hr; then the mixture is put into a 50 ℃ oven for low-temperature drying, distilled water is used for humidifying until the standard moisture content is 11%, the standard heating cigarette cartridge is rolled, the moisture content is balanced (the humidity is 50% +/-2%, the temperature is 25+/-1 ℃) for 48 hours, and the slice filaments in the cartridge are heated by a special heating source of the appliance, so that smoking is evaluated. The evaluation results are shown in Table 1.
Table 1 evaluation of blueberry extracts with different additive amounts in heated cigarettes
As can be seen from table 1, when the additive amount of the blueberry extract prepared by the present disclosure in the tobacco shred of the heating cigarette is 0.5-8wt%o, the richness of the tobacco aroma of the heating cigarette can be well improved, the miscellaneous gas and the irritation can be effectively reduced, the after-taste and the oral comfort can be improved, the durability of the aroma can be improved, and the characteristics of sweet and sweet feel can be revealed.
While certain specific embodiments of the invention have been described in detail by way of example, it will be appreciated by those skilled in the art that the above examples are for illustration only and are not intended to limit the scope of the invention. It will be appreciated by those skilled in the art that modifications may be made to the above embodiments without departing from the scope and spirit of the invention. The scope of the invention is defined by the appended claims.
Claims (5)
1. A method for preparing a blueberry extract for heating cigarettes, which is characterized by comprising the following steps:
step (1):
homogenizing: washing fructus Myrtilli with distilled water, placing fructus Myrtilli into a refiner at 12000-20000r/min, crushing at 50-60deg.C, stirring for 3-5min, and adding deionized water to form mixed slurry;
step (2):
reaction stage: adding the mixed slurry into a reaction kettle, sealing, filling nitrogen, and reacting for 10-30min at 180-300 ℃ and 3-15MPa to obtain a blueberry slurry mixed solution;
step (3):
mixing and dissolving: adding an organic solvent into the blueberry pulp mixed solution, and fully and uniformly mixing to obtain the blueberry mixed solution, wherein the organic solvent is 95wt% ethanol solution, and the mass ratio of the organic solvent to the blueberry pulp mixed solution is 1 (0.5-2);
step (4):
extraction: carrying out solid-liquid separation on the blueberry mixed solution by adopting a centrifugal machine;
step (5):
concentration stage: vacuum distilling the separated liquid phase at 45-55deg.C under 10-80Pa to obtain blueberry concentrate;
step (6):
the preparation stage comprises the following steps: uniformly mixing the blueberry concentrate with the same mass and the propylene glycol aqueous solution with the mass percentage of 30-50%, thus obtaining the blueberry extract.
2. The method for preparing blueberry extract according to claim 1, wherein the mass ratio of blueberry fruit to deionized water in the step (1) is 1 (10-30).
3. The method of claim 1, wherein the working conditions for the solid-liquid separation in step (4) are:
the rotating speed of the centrifugal machine is 3000-5000 r/min, and the time is 5-7min.
4. The method of claim 1, wherein the liquid phase is concentrated to 18-23% of the blueberry fruit mass in step (5) to provide a blueberry concentrate.
5. Use of a blueberry extract prepared by the method of preparing a blueberry extract as claimed in any one of claims 1 to 4 in heating cigarettes, wherein the blueberry extract is added in an amount of 0.5-8 wt%.
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016083362A1 (en) * | 2014-11-25 | 2016-06-02 | Fonden For Helene Elsass Centeret | Composition for improving cognitive functions |
| CN108684811A (en) * | 2018-08-15 | 2018-10-23 | 安徽农业大学 | A method of reducing blueberries freezing injury |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2016083362A1 (en) * | 2014-11-25 | 2016-06-02 | Fonden For Helene Elsass Centeret | Composition for improving cognitive functions |
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