CN104585865B - A kind of tobacco juice for electronic smoke containing tobacco extract and preparation method thereof - Google Patents

Abstract

The invention discloses a kind of tobacco juice for electronic smoke containing tobacco extract, it contains following component: with parts by weight, 1-2 part tobacco extract, 10 parts of deionized waters, 15-60 part glycerine, 26.5-69 part propane diols, 0-8 part auxiliary materials; The preparation method of this tobacco juice for electronic smoke is: get cured tobacco leaf, offal is ground into after oven dry, deionized water is added after ultraviolet-sterilization, carry out accelerated solvent extraction, between the extract NaOH adjust ph to 10-13 obtained, carry out steam distillation again, then with food-grade ethyl acetate, distillate is extracted again, again to extract reduced pressure concentration, obtain steam distillation tobacco extract, then be added dropwise in the mixture of deionized water, glycerine, propane diols, auxiliary material and stirred, namely obtained described tobacco juice for electronic smoke; Compared with prior art, the tobacco extract non-pigment in the present invention, harmful components are low, component is simple, it is water-soluble to have and higher boiling characteristic, are beneficial to the later stage to prepare tobacco juice for electronic smoke.

Description

Electronic cigarette liquid containing tobacco extract and preparation method thereof

technical field

The invention relates to the field of tobacco, in particular to an electronic cigarette liquid and a preparation method thereof.

Background technique

The World Health Organization Framework Convention on Tobacco Control strictly prohibits cigarette consumers from smoking in public places, and many countries have issued corresponding regulations to prohibit smoking in closed places. Cigarette consumers are dependent on smoking cigarettes, and the success rate of compulsory smoking cessation is low. Therefore, new tobacco products have emerged as excessive smoking cessation products. Electronic cigarette is one of the new tobacco products, which is an electronic delivery device that transmits nicotine to the respiratory system by means of electronic heating. Although electronic cigarettes have the taste of cigarettes, they have no soot, no combustion, no tar, carbon monoxide and other harmful substances.

The tobacco extract used in the existing e-cigarette liquid is generally prepared by direct extraction, CO ₂ supercritical extraction or dry distillation. The tobacco extract obtained by the direct extraction method has high pigment content, which is easy to cause pigmentation in the mouth of consumers. The tobacco extract obtained by _CO2 supercritical extraction not only has high harmful components and complex extract components, but also has potential safety hazards, and not all components in the extract are water-soluble, and the components used in the preparation of e-cigarette liquids are required to be water soluble. The tobacco extract obtained by the dry distillation method also has the disadvantages that the extract components are complex and not all components are water-soluble.

Contents of the invention

The purpose of the present invention is to overcome the shortcomings of the above-mentioned prior art, and provide an electronic cigarette liquid prepared from tobacco extract with low harmful components, simple components, good water solubility, and no pigment, and a preparation method thereof.

In order to solve the above-mentioned technical problems, the present invention adopts the following technical solutions:

An electronic cigarette liquid containing tobacco extract, which contains the following components: in parts by weight,

As a preferred mode of the present invention, the tobacco extract is a liquid obtained from flue-cured tobacco leaves by using accelerated solvent extraction combined with steam distillation and re-extraction;

As another preferred mode of the present invention, the excipients are one or more excipients selected from Chuanbei extract, Sydney extract, black plum extract, licorice extract, kumquat extract, and chrysanthemum extract;

A method for preparing electronic cigarette liquid as described above, it comprises the following steps:

A. Pretreatment

In terms of parts by weight, take 1-5 parts of flue-cured tobacco leaves, dry them, crush them into tobacco powder, and carry out ultraviolet sterilization to obtain sterilized tobacco powder;

B. Preparation of Tobacco Extract

Add the sterilized tobacco dust obtained in step A into a stainless steel extraction tank lined with a glass cellulose membrane, and then add 5-10 parts by weight of deionized water, at a temperature of 40-60°C and a pressure of 0.8× ¹⁰ Perform accelerated solvent extraction under the condition of 1.2×10 ⁷ Pa, then use sodium hydroxide to adjust the pH value of the obtained extract to between 10-13, then steam distill it, and collect 3-10 parts by weight of the distillate , and then use 6-200 parts by weight of ethyl acetate to extract the distillate again to obtain an extract, and then concentrate the extract under reduced pressure to obtain a tobacco extract;

C. Preparation of electronic cigarette liquid

In parts by weight, mix 10 parts of deionized water, 15-60 parts of glycerol, 26.5-69 parts of propylene glycol, and 0-8 parts of auxiliary materials to obtain a mixture, and then take 1-2 parts of the tobacco extract obtained in step B drop into the mixture and stir evenly to obtain the e-cigarette liquid;

As a preferred mode of the present invention, in step A, the flue-cured tobacco leaves are one or more types of tobacco leaves selected from the group consisting of clear-flavor flue-cured tobacco leaves, strong-flavor flue-cured tobacco leaves, and middle-flavor flue-cured tobacco leaves;

As another preferred mode of the present invention, in step A, the drying method is to dry the flue-cured tobacco leaves in an oven at 40°C for 2 hours;

As another preferred mode of the present invention, in step A, after pulverizing into tobacco powder, pass through a 40-mesh sieve;

As another preferred mode of the present invention, in step A, 0.1-0.5 parts of fresh mint leaves are added to the tobacco powder;

As another preferred mode of the present invention, in step B, when performing accelerated solvent extraction, deionized water is used for cyclic extraction twice, and then static extraction for 10-30 min;

As another preferred mode of the present invention, in step B, the distillate is re-extracted with ethyl acetate three times, and then the extracts are combined.

The present invention is described in further detail below:

An electronic cigarette liquid containing tobacco extract, which contains the following components: in parts by weight,

The tobacco extract is a liquid obtained from flue-cured tobacco leaves by using accelerated solvent extraction combined with steam distillation and re-extraction;

The excipients are one or more excipients selected from Chuanbei extract, Sydney extract, black plum extract, licorice extract, kumquat extract, and chrysanthemum extract;

The present invention adds auxiliary materials selected from Chuanbei extract, Sydney extract, black plum extract, licorice extract, kumquat extract, and chrysanthemum extract to the electronic cigarette liquid, which can promote body fluid and stop phlegm, clear throat and moisten throat It can not only increase the taste of e-cigarette liquid, but also reduce the adverse effects of tobacco extracts on the human body.

A method for preparing electronic cigarette liquid as described above, it comprises the following steps:

A. Pretreatment

Prepare one or more types of flue-cured tobacco leaves selected from the group consisting of delicate-flavor flue-cured tobacco leaves, strong-flavor flue-cured tobacco leaves, and middle-flavor flue-cured tobacco leaves. In parts by weight, take 1-5 parts of the above-mentioned flue-cured tobacco leaves and place them in an oven at 40°C for 2 hours, dried, crushed into tobacco powder and passed through a 40-mesh sieve, then added 0.1-0.5 parts of fresh mint leaves to the tobacco powder, and then subjected to ultraviolet sterilization to obtain sterilized tobacco powder.

The present invention adds fresh mint leaves to the flue-cured tobacco powder, which can not only increase the taste of the electronic cigarette liquid prepared in the later stage, but also freshen the breath.

B. Preparation of Tobacco Extract

Add the sterilized tobacco dust obtained in step A into a stainless steel extraction tank lined with a glass cellulose membrane, and then add 5-10 parts by weight of deionized water, at a temperature of 40-60°C and a pressure of 0.8× ¹⁰ Under the condition of 1.2×10 ⁷ Pa, the accelerated solvent extraction is carried out. During the accelerated solvent extraction, the deionized water is used to extract twice, and then the static extraction is carried out for 10-30min, and then the obtained extract is adjusted to pH value with sodium hydroxide. Between 10-13, it is poured into the steam distillation device that has been sterilized by high temperature and high pressure and ultraviolet ray for steam distillation, and 3-10 parts by weight of the distillate are collected, and then 6-200 parts by weight of food-grade Ethyl acetate is used to extract the distillate again, and this extraction is carried out three times, the extracts are combined, and the obtained extracts are concentrated under reduced pressure to obtain a liquid tobacco extract.

The principle of accelerated solvent extraction is that under higher temperature and high pressure, the solubility and dissolution rate of the target substance in the solvent will increase to varying degrees, thereby improving the extraction efficiency, with short extraction time, high extraction efficiency, high degree of automation, and safety. Good feature, when the present invention adopts the accelerated solvent extraction method, it first circulates the extraction and then statically extracts, so that the extraction efficiency can be further improved.

In the present invention, the tobacco extract prepared by using flue-cured tobacco leaves by the method of "accelerated solvent extraction-steam distillation-reextraction" not only has no pigment, low harmful components, simple components, but also has water solubility and high boiling point characteristics. It is beneficial to prepare electronic cigarette liquid in the later stage; and the re-extraction is carried out three times, which not only improves the extraction efficiency, but also makes the purity of the tobacco extract higher.

C. Preparation of electronic cigarette liquid

In parts by weight, mix 10 parts of deionized water, 15-60 parts of glycerol, 26.5-69 parts of propylene glycol, and 0-8 parts of auxiliary materials to obtain a mixture, and then take 1-2 parts of the tobacco extract obtained in step B drop into the mixture and stir evenly to obtain the e-cigarette liquid.

Compared with prior art, the beneficial effect of the present invention is:

The tobacco extract in the present invention not only has no pigment, low harmful components, and simple components, but also has water solubility and high boiling point characteristics, which is conducive to the preparation of electronic cigarette liquid in the later stage, and the electronic cigarette liquid made of it is relatively Safety not only meets the special needs of tobacco consumers for nicotine, but also satisfies consumers' preferences for specific tobacco flavors.

detailed description

In order to better understand the technical solution of the present invention, the following will be described in detail through specific examples:

Embodiment one

An electronic cigarette liquid containing tobacco extract, which contains the following components: in parts by weight,

The tobacco extract is a liquid obtained from flue-cured tobacco leaves by an accelerated solvent extraction method combined with steam distillation and re-extraction.

A method for preparing electronic cigarette liquid as described above, it comprises the following steps:

A. Pretreatment

In terms of parts by weight, take 1 part of Dabainum leaf, put it in an oven at 40°C and dry it for 2 hours, after drying, crush it into tobacco powder and pass it through a 40-mesh sieve, and then perform ultraviolet sterilization to obtain sterilized tobacco powder;

B. Preparation of Tobacco Extract

Add the sterilized tobacco dust obtained in step A into a stainless steel extraction tank lined with a glass cellulose membrane, then add 5 parts by weight of deionized water, and conduct the extraction under the conditions of a temperature of 40°C and a pressure of 0.8×10 ⁷ Pa. Accelerated solvent extraction. When performing accelerated solvent extraction, first use deionized water to extract twice, then statically extract for 10 minutes, then adjust the pH value of the obtained extract to 10 with sodium hydroxide, and then pour it into Carry out steam distillation in the steam distillation device of bacterium and ultraviolet sterilization, collect 3 weight parts of distillate, then use 6 weight parts of ethyl acetate to distillate again, and this extraction is divided into three times again, combine extract, and then concentrate the obtained extract under reduced pressure to obtain a liquid tobacco extract;

C. Preparation of electronic cigarette liquid

In parts by weight, mix 10 parts of deionized water, 20 parts of glycerin, and 69 parts of propylene glycol to obtain a mixture, and then take 1 part of the tobacco extract obtained in step B and drop them into the mixture, and stir evenly to obtain The e-cigarette liquid.

Embodiment two

An electronic cigarette liquid containing tobacco extract, which contains the following components: in parts by weight,

The tobacco extract is a liquid obtained from flue-cured tobacco leaves by using accelerated solvent extraction combined with steam distillation and re-extraction;

The auxiliary material is one or more auxiliary materials selected from Chuanbei extract, Sydney extract, black plum extract, licorice extract, kumquat extract, and chrysanthemum extract.

A method for preparing electronic cigarette liquid as described above, it comprises the following steps:

A. Pretreatment

In terms of parts by weight, take 3 parts of China Tobacco 100 tobacco leaves, place them in an oven at 40 ° C for 2 hours, and after drying, crush them into tobacco powder and pass through a 40-mesh sieve, then add 0.1 part of fresh mint leaves to the tobacco powder, and then carry out Ultraviolet sterilization to obtain sterilized tobacco powder;

B. Preparation of Tobacco Extract

Add the sterilized tobacco dust obtained in step A into a stainless steel extraction tank lined with a glass cellulose membrane, then add 10 parts by weight of deionized water, and conduct the extraction at a temperature of 60°C and a pressure of 1.2×10 ⁷ Pa. Accelerated solvent extraction. When performing accelerated solvent extraction, first use deionized water to circulate and extract twice, then statically extract for 30 minutes, then adjust the pH value of the obtained extract to 11 with sodium hydroxide, and then pour it into Steam distillation is carried out in the water steam distillation device for bacteria and ultraviolet sterilization, 6 parts by weight of distillate are collected, and then 30 parts by weight of food-grade ethyl acetate is used to extract the distillate again, and this extraction is carried out in three times , combining the extracts, and then concentrating the obtained extracts under reduced pressure to obtain a liquid tobacco extract;

C. Preparation of electronic cigarette liquid

In parts by weight, 10 parts of deionized water, 15 parts of glycerin, 65 parts of propylene glycol, 3 parts of Chuanbei extract, 3 parts of Sydney extract, 1 part of ebony extract, and 1 part of licorice extract were mixed uniformly to obtain mixture, and then take 2 parts of the tobacco extract obtained in step B and drop them into the mixture, and stir evenly to obtain the e-cigarette liquid.

Embodiment three

An electronic cigarette liquid containing tobacco extract, which contains the following components: in parts by weight,

The tobacco extract is a liquid obtained from flue-cured tobacco leaves by using accelerated solvent extraction combined with steam distillation and re-extraction;

The auxiliary material is one or more auxiliary materials selected from Chuanbei extract, Sydney extract, black plum extract, licorice extract, kumquat extract, and chrysanthemum extract.

A method for preparing electronic cigarette liquid as described above, it comprises the following steps:

A. Pretreatment

In terms of parts by weight, take 5 parts of Yun 85 tobacco leaves, put them in an oven at 40 ° C for 2 hours, and after drying, crush them into tobacco powder and pass through a 40-mesh sieve, then add 0.5 parts of fresh mint leaves to the tobacco powder, and then conduct ultraviolet Sterilize to obtain sterilized tobacco powder;

B. Preparation of Tobacco Extract

Add the sterilized tobacco dust obtained in step A into a stainless steel extraction tank lined with a glass cellulose membrane, then add 7 parts by weight of deionized water, and perform accelerated solvent extraction at a temperature of 50°C and a pressure of 10 ⁷ Pa. Extraction, when performing accelerated solvent extraction, first cycle extraction with deionized water twice, then statically extract for 20 minutes, then adjust the pH value of the obtained extract to 13 with sodium hydroxide, and then pour it into Carry out steam distillation in the steam distillation device of ultraviolet sterilization, collect 10 parts by weight of distillate, then use 200 parts by weight of food-grade ethyl acetate to extract the distillate again, and this extraction is divided into three times again, combine extract, and then concentrate the obtained extract under reduced pressure to obtain a liquid tobacco extract;

C. Preparation of electronic cigarette liquid

In parts by weight, mix 10 parts of deionized water, 40 parts of glycerol, 41.5 parts of propylene glycol, 2 parts of licorice extract, 1 part of ebony extract, and 4 parts of kumquat extract to obtain a mixture, and then take 1.8 parts The tobacco extract obtained in step B is dropped into the mixture and stirred evenly to obtain the e-cigarette liquid.

Embodiment Four

An electronic cigarette liquid containing tobacco extract, which contains the following components: in parts by weight,

The tobacco extract is a liquid obtained from flue-cured tobacco leaves by using accelerated solvent extraction combined with steam distillation and re-extraction;

The auxiliary material is one or more auxiliary materials selected from Chuanbei extract, Sydney extract, black plum extract, licorice extract, kumquat extract, and chrysanthemum extract.

A method for preparing electronic cigarette liquid as described above, it comprises the following steps:

A. Pretreatment

Mix the three types of flue-cured tobacco leaves, red tabaco leaves, cloud 85 tobacco leaves, and medium tobacco 100 tobacco leaves, in parts by weight, take 2 parts of the above-mentioned mixed flue-cured tobacco leaves, place them in an oven at 40°C for 2 hours, and crush them into tobacco powder after drying And pass through a 40-mesh sieve, then add 0.3 parts of fresh mint leaves to the tobacco powder, and then carry out ultraviolet sterilization to obtain sterilized tobacco powder;

B. Preparation of Tobacco Extract

Add the sterilized tobacco dust obtained in step A into a stainless steel extraction tank lined with a glass cellulose membrane, then add 8 parts by weight of deionized water, and conduct the extraction at a temperature of 55°C and a pressure of 1.1×10 ⁷ Pa. Accelerated solvent extraction, when performing accelerated solvent extraction, first cycle extraction with deionized water twice, then statically extract for 25 minutes, then adjust the pH value of the obtained extract to 12 with sodium hydroxide, and then pour it into Steam distillation was carried out in the water steam distillation device for bacteria and ultraviolet sterilization, and 7 parts by weight of the distillate were collected, and then the distillate was extracted again with 100 parts by weight of food-grade ethyl acetate, and this extraction was carried out in three times , combining the extracts, and then concentrating the obtained extracts under reduced pressure to obtain a liquid tobacco extract;

C. Preparation of electronic cigarette liquid

In parts by weight, mix 10 parts of deionized water, 60 parts of glycerin, 26.5 parts of propylene glycol, 1 part of licorice extract, and 1 part of chrysanthemum extract to obtain a mixture, and then take 1.5 parts of the tobacco extract obtained in step B drop into the mixture and stir evenly to obtain the e-cigarette liquid.

Embodiment five

The tobacco extract obtained by the method of "accelerated solvent extraction-steam distillation-reextraction" in Example 1 and the tobacco extract obtained by general _CO2 supercritical extraction were subjected to nicotine, flavor components, condensed ring aromatics, tobacco For the detection of specific N-nitrosamines, the detection method refers to YC/T246-2008 "Tobacco and Tobacco Products · Determination of Nicotine · Gas Chromatography", GB/T21130-2007 "Cigarette · Benzo (α) Determination of Pyridine", YC/T184-2004 "Tobacco and Tobacco Products Determination of Tobacco-Specific N-nitrosamines", the test results are shown in Table 1:

Table 1 Comparison of chemical components in two kinds of tobacco extracts

It can be seen from Table 1 that the tobacco extract prepared by the method of "accelerated solvent extraction-steam distillation-re-extraction" in Example 1 has fewer harmful components and is safer, and the flavor components have water solubility and high boiling point characteristics , which is more convenient in the preparation of e-cigarette liquid; however, the supercritical tobacco extract has many harmful components and high content, and many flavor components do not have the characteristics of water solubility and high boiling point, which has disadvantages in the preparation of e-cigarette liquid.

Embodiment six

Electronic cigarette sensory quality evaluation method:

According to the cigarette sensory quality evaluation standard GB5606.4-2005, combined with the sensory characteristics of electronic cigarettes, 6 evaluation indicators and scores are set according to different weights, as shown in Table 2:

Table 2 Electronic cigarette sensory evaluation scoring table

The e-cigarette liquids obtained according to Examples 1 to 4 were subjected to sensory evaluation, and the evaluation results were calculated according to the evaluation results of various experts. The arithmetic mean value was obtained, and one significant figure was reserved for the results. The statistical results are shown in Table 3:

Table 3 Sensory evaluation scores of several different e-cigarette liquids

sample satisfaction aroma Harmonize Miscellaneous irritant aftertaste Embodiment one 21.5 19.5 4.5 8.5 18.5 13.5 Embodiment two 24.5 22.5 4.5 9.5 19.5 14.0 Embodiment three 23.5 23.5 4.5 9.5 18.5 14.0 Embodiment Four 23.5 23.5 4.5 9.0 19.0 14.5

Although the present invention has been described here with reference to the illustrative examples of the present invention, the above-mentioned examples are only preferred implementations of the present invention, and the implementation of the present invention is not limited by the above-mentioned examples. It should be understood that those skilled in the art Many other modifications and implementations can be designed, and any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention shall be included within the protection scope of the present invention.

Claims (7)

1. a preparation method for tobacco juice for electronic smoke, is characterized in that it comprises the following steps:

A, pretreatment

With parts by weight, get the cured tobacco leaf of 1-5 part, after oven dry, be ground into offal, carry out ultraviolet-sterilization, obtain the offal after sterilization;

B, prepare tobacco extract

Offal after sterilization steps A obtained is added in the stainless steel abstraction pool being lined with glass fibre element film, then adds 5-10 parts by weight of deionized water, temperature be 40-60 DEG C, pressure is 0.8 × 10 ⁷-1.2 × 10 ⁷accelerated solvent extraction is carried out under the condition of Pa, then by between the extract NaOH adjust ph to 10-13 that obtains, again steam distillation is carried out to it, collect distillate 3-10 weight portion, then with the ethyl acetate of 6-200 weight portion, second time extraction is carried out to distillate, be extracted liquid, then reduced pressure concentration is carried out to extract, namely obtain tobacco extract;

C, prepare tobacco juice for electronic smoke

With parts by weight, 10 parts of deionized waters, 15-60 part glycerine, 26.5-69 part propane diols, 0-8 part auxiliary material are mixed, obtains mixture, then get the tobacco extract that 1-2 part step B obtains and instill in described mixture, stir, namely obtain described tobacco juice for electronic smoke.

2. preparation method according to claim 1, is characterized in that in step, and described cured tobacco leaf is that one or more are selected from the tobacco leaf of delicate fragrance type cured tobacco leaf, Luzhou-flavor cured tobacco leaf, flat-flavor cured tobacco leaf.

3. preparation method according to claim 1, is characterized in that in step, and furnace drying method dries 2 hours for cured tobacco leaf being placed in 40 DEG C of baking ovens.

4. preparation method according to claim 1, is characterized in that in step, crosses 40 mesh sieves after being ground into offal.

5. preparation method according to claim 1, is characterized in that in step, adds 0.1-0.5 part fresh mint leaf in offal.

6. preparation method according to claim 1, is characterized in that in stepb, when carrying out accelerated solvent extraction, first uses deionized water cycling extraction 2 times, then static extracting 10-30min.

7. preparation method according to claim 1, is characterized in that in stepb, carries out the second time extraction time-division and carries out for three times, remerge extract with ethyl acetate to distillate.