Green tea flavor tobacco tar formula and preparation method thereof

Abstract

The invention discloses a green tea flavor tobacco tar formula and a preparation method thereof, and relates to the technical field of electronic cigarettes. 0.1 to 1.5 parts of a composite flavor enhancer; 0.05 to 0.5 part of a natural stabilizer; 80 to 120 parts of tobacco tar base liquid; according to the invention, a two-stage full-spectrum extraction technology is adopted, high-volatility top fragrance and mellow original fragrance in natural green tea are obtained, and a trace flavor enhancer is supplemented for assistance, so that the defects that in the prior art, green tea flavor electronic cigarette liquid is distorted in fragrance, single in layer and has chemical sensation are overcome; the natural aroma of high-grade green tea with clear front, middle and tail conditioning and high reduction can be provided, L-theanine and other delicate flavor and mellow feeling enhancers are introduced into the formula, and a long-period curing process is combined, so that stimulation possibly brought by tobacco tar base liquid is neutralized, foreign flavor of newly prepared tobacco tar is eliminated, and the flavor of the tobacco tar is improved. Therefore, a user can experience real tea soup feelings of smoothness, mellowness, fullness and long aftertaste.

Description

Technical Field

[0001] The present invention relates to the technical field of electronic cigarettes, and in particular to a green tea-flavored cigarette oil formula and a preparation method thereof. Background Art

[0002] As an alternative consumer product, the core experience and market competitiveness of e-cigarettes depend largely on the flavor and quality of their core consumables: e-liquid. Among the many flavors, green tea, with its fresh, natural, and healthy image, has gained widespread consumer favor and demonstrated significant market potential. However, there are several drawbacks in the production of high-quality green tea-flavored e-liquid:

[0003] First, the aroma is distorted, failing to truly recreate the natural flavor. Currently, the vast majority of green tea-flavored e-liquids on the market rely on synthetic fragrances or simple flavorings. While these solutions are inexpensive, their aromas are often thin and flat, lacking the rich, layered top, middle, and base notes characteristic of natural, high-quality green tea. Users often experience a distorted flavor that's far from authentic tea, with a distinct "chemical" or "perfume" quality. Even though some solutions attempt to use natural extracts, traditional single-stage extraction processes (such as simple solvent or water extraction) cannot simultaneously address both the highly volatile aroma components and the rich, underlying flavor compounds in green tea, which vary in boiling point and polarity. This results in a compromised and incomplete aroma and flavor in the final product.

[0004] Second, the product's properties are unstable and its shelf life is short. Green tea extract, rich in tea polyphenols, chlorophyll, and other active ingredients, is chemically active and extremely sensitive to light, heat, and oxygen. Under current technology, e-liquids containing these natural ingredients are prone to degradation reactions such as oxidation and polymerization during storage and transportation. This causes the product's color to rapidly darken from a clear light yellow to a dark brown, resulting in a subsequent flavor degradation and even the formation of flocculent sediment. This not only severely affects the product's appearance and taste, but also significantly shortens its effective shelf life.

[0005] Therefore, we propose a green tea flavored e-liquid formula and a preparation method thereof. Summary of the Invention

[0006] 1. Problem to be solved

[0007] In view of the problems existing in the prior art, the purpose of the present invention is to provide a green tea flavored e-liquid formula and a preparation method thereof to solve the problems mentioned in the above background technology.

[0008] 2. Technical solution

[0009] To achieve the above object, the present invention provides the following technical solutions:

[0010] A green tea flavored e-liquid formula comprises the following components in parts by weight:

[0011] Full spectrum natural green tea extract: 1-10 parts;

[0012] Compound flavor enhancer: 0.1-1.5 parts;

[0013] Natural stabilizer: 0.05-0.5 parts;

[0014] E-liquid base liquid: 80-120 parts;

[0015] Nicotine or its salts: 0-5 parts.

[0016] As a further embodiment of the present invention, the full-spectrum natural green tea extract is prepared by a method comprising the following steps:

[0017] S1: Extracting green tea leaves using supercritical carbon dioxide fluid to obtain a high-fragrance extract rich in volatile aroma components;

[0018] S2: The tea residue after the previous extraction step is subjected to subcritical water extraction to obtain a flavor extract rich in flavor substances;

[0019] S3: mixing the high-fragrance extract and the thick-flavor extract.

[0020] As a further solution of the present invention: the extraction process parameters of the high-fragrant extract are: pressure 20-25MPa, temperature 45-55°C; the extraction process parameters of the thick-flavored extract are: temperature 80-00°C.

[0021] As a further solution of the present invention: the composite flavor enhancer comprises an umami and mellow flavor enhancer and a fresh and green flavor enhancer.

[0022] As a further embodiment of the present invention: the umami mellowness enhancer is selected from at least one of L-theanine, disodium guanylate, disodium inosinate, shiitake mushroom extract, and yeast extract.

[0023] As a further solution of the present invention: the fresh green enhancer is selected from at least one of (Z)-3-hexenol, leaf alcohol acetal, and phenylacetaldehyde.

[0024] As a further embodiment of the present invention: the natural stabilizer is selected from at least one of ascorbic acid, tocopherol, tea polyphenols, rosemary extract, and grape seed extract.

[0025] As a further solution of the present invention: the e-liquid base liquid is composed of propylene glycol and vegetable glycerin, and the weight ratio of the propylene glycol to the vegetable glycerin is (40-60): (60-40).

[0026] A method for preparing green tea flavored electronic cigarette oil comprises the following steps:

[0027] S1: Pre-dissolving, adding the full spectrum natural green tea extract, compound flavor enhancer and natural stabilizer to propylene glycol, stirring and mixing at a temperature of 15-25° C. to form a uniform premix solution;

[0028] S2: Homogenization: mixing the premixed solution obtained in step S1 with vegetable glycerin and optionally nicotine or a salt thereof, and performing forced homogenization using a high shear emulsifier;

[0029] S3: Aging: The e-liquid homogenized in step S2 is sealed and aged for 7-21 days at a constant temperature and in the dark.

[0030] As a further solution of the present invention: the shear rate of the high shear emulsifier is 8000-12000 rpm; the constant temperature of aging is 18-22°C.

[0031] Compared with the prior art, the present invention has the following beneficial effects:

[0032] 1. The present invention adopts a two-stage full-spectrum extraction technology to obtain the highly volatile "top aroma" and mellow "base aroma" of natural green tea, and supplemented by a trace amount of flavor enhancer. This solves the defects of the existing green tea flavored e-cigarette liquid, such as distorted aroma, single layer, and "chemical feel". It can provide a high-quality natural green tea aroma with clear top, middle and bottom notes and a high degree of restoration.

[0033] 2. By introducing L-theanine and other flavor enhancers into the formula and combining it with a long-term aging process, the present invention neutralizes the irritation that may be caused by the e-liquid base liquid and eliminates the unpleasant taste of newly formulated e-liquid, allowing users to experience the smooth, mellow and full-bodied feeling of real tea soup with a long aftertaste.

[0034] 3. To address the problem of natural ingredients being easily oxidized and deteriorated, the present invention introduces highly effective natural stabilizers such as ascorbic acid, tocopherol, and plant extracts into the formula, and combines it with a full-process light-proof and low-temperature production process. This greatly delays the degradation of active substances in the product, effectively preventing problems such as color deepening and flavor decay during storage and transportation, significantly extending the product's effective shelf life and enhancing its commercial value.

[0035] 4. The present invention breaks down the preparation process of e-cigarette liquid into multiple standardized steps with clear process parameters, such as pre-dissolution, high-shear homogenization, and constant temperature aging. This refined process ensures that all components can be fully and evenly integrated, guarantees the flavor stability of the final product and high consistency between different production batches, and lays a solid technical foundation for the industrialized and large-scale production of high-quality green tea-flavored e-cigarette liquid. DETAILED DESCRIPTION

[0036] The technical solutions in the embodiments of the present invention will be described clearly and completely below.

[0037] The present invention provides a green tea-flavored e-liquid formula and a preparation method thereof. The formula comprises the following components and raw materials, in parts by mass: 1 to 10 parts of a full-spectrum natural green tea extract; 0.1 to 1.5 parts of a compound flavor enhancer; 0.05 to 0.5 parts of a natural stabilizer; 80 to 120 parts of an e-liquid base liquid; and optionally 0 to 5 parts of nicotine or a salt thereof.

[0038] The compound flavor enhancer is obtained through a two-stage extraction process.

[0039] The first stage is high-aroma extraction: green tea leaves are extracted using supercritical carbon dioxide fluid to obtain a high-aroma extract rich in volatile aroma components. The preferred process parameters for this step are pressure of 20 to 25 MPa and temperature of 45 to 55°C. These conditions can gently and efficiently capture various heat-sensitive aroma substances in the tea leaves that determine the top notes of the tea aroma.

[0040] The second stage is flavor extraction: the tea residue from the previous extraction step is subjected to subcritical water extraction to obtain a flavor-rich flavor extract. The preferred process parameters for this step are a temperature of 80 to 100°C to fully dissolve tea polyphenols, L-theanine, and other flavor compounds that contribute to the richness and sweet aftertaste of the tea. Finally, in step S3, the high-aroma extract and the flavor extract are combined to produce a complete, full-spectrum natural green tea extract.

[0041] The purpose of the composite flavor enhancer is to strengthen and improve the flavor of natural extracts, making their flavor profile more prominent and fuller. This enhancer includes a flavor enhancer for umami and mellowness, and a flavor enhancer for freshness and greenness. The flavor enhancer, which enhances the freshness and smoothness of the e-liquid, can be selected from at least one of L-theanine, disodium guanylate, disodium inosinate, shiitake mushroom extract, and yeast extract. The flavor enhancer, which replenishes the fresh herbal aroma that is easily lost during tea processing, can be selected from at least one of (Z)-3-hexenol, leaf alcohol acetal, and phenylacetaldehyde.

[0042] Natural stabilizers are designed to address the oxidative deterioration of natural extracts in e-liquid base liquids. They effectively slow down the color darkening and flavor degradation of e-liquids during storage and use. Optional natural stabilizers include at least one of ascorbic acid, tocopherol, tea polyphenols, rosemary extract, and grape seed extract.

[0043] The e-liquid base consists of propylene glycol and vegetable glycerin, which serve as the primary flavor carrier and vapor source, respectively. The weight ratio of propylene glycol to vegetable glycerin is 40-60:60-40, and adjusting this ratio can balance flavor clarity and vapor richness.

[0044] The preparation method of the present invention comprises the following steps:

[0045] Step 1: Pre-dissolution. Add the full-spectrum natural green tea extract, complex flavor enhancer, and natural stabilizer to propylene glycol and stir at 15-25°C until a homogeneous, clear premix solution is formed. This step ensures that the functional components are fully dissolved before mixing with the high-viscosity vegetable glycerin.

[0046] Step 2: Homogenization. The premixed solution obtained in Step 1 is mixed with vegetable glycerin and, optionally, nicotine or its salt, and homogenized using a high-shear emulsifier. The shear rate of the high-shear emulsifier is preferably between 8,000 and 12,000 rpm. Its strong mechanical force can break up the mixture into a stable microstructure, preventing stratification and precipitation.

[0047] Step 3: Aging. The e-liquid homogenized in Step 2 is aged in a sealed container at a constant temperature and in the dark for 7 to 21 days. The preferred aging temperature is 18 to 22°C. This step is crucial for flavor mellowing and smoothing the overall flavor of the e-liquid.

[0048] The present invention is further described in detail below through specific examples.

[0049] Example 1

[0050] This embodiment provides a Longjing flavored electronic cigarette liquid with a classic roasted bean aroma.

[0051] The formula thereof comprises, by weight:

[0052] Full Spectrum Natural Green Tea Extract: 6 servings

[0053] L-theanine: 0.5 parts

[0054] (Z)-3-Hexenol: 0.01 part

[0055] Ascorbic acid: 0.1 parts

[0056] Propylene glycol: 55.39 parts

[0057] Vegetable glycerin: 45 parts

[0058] Nicotine salt: 3 parts

[0059] The preparation method is as follows:

[0060] First, in a clean container, add 6 parts of full-spectrum natural green tea extract, 0.5 parts of L-theanine, 0.01 parts of (Z)-3-hexenol and 0.1 parts of ascorbic acid to 55.39 parts of propylene glycol and stir at 20°C until completely dissolved to form a premix solution.

[0061] Next, 45 parts of vegetable glycerin and 3 parts of nicotine salt were added to the premixed solution, and a high-shear emulsifier was used to shear at a speed of 10,000 rpm for 15 minutes to obtain a uniform and transparent mixed e-liquid.

[0062] Finally, the mixed e-liquid is transferred to a sealed brown glass bottle and aged in a light-proof environment at a constant temperature of 18°C ​​for 14 days. After the aging is completed, it is filtered through a microporous filter membrane and then bottled to obtain the final product.

[0063] Example 2

[0064] This embodiment provides a Biluochun flavored electronic cigarette liquid with a refreshing floral and fruity aroma.

[0065] The formula thereof comprises, by weight:

[0066] Full Spectrum Natural Green Tea Extract: 4 servings

[0067] Yeast extract: 0.2 parts

[0068] Leaf alcohol acetal: 0.02 parts

[0069] Rosemary extract: 0.1 parts

[0070] Propylene glycol: 50.68 parts

[0071] Vegetable glycerin: 55 parts

[0072] The preparation method is as follows:

[0073] First, 4 parts of full-spectrum natural green tea extract, 0.2 parts of yeast extract, 0.02 parts of leaf alcohol acetal and 0.1 parts of rosemary extract were added to 50.68 parts of propylene glycol and stirred at 25°C until a homogeneous premix solution was formed.

[0074] Next, 55 parts of vegetable glycerin were added to the premixed solution, and the mixture was sheared at 8000 rpm for 20 minutes using a high shear emulsifier.

[0075] Finally, the mixed e-liquid is aged in a constant temperature environment of 22°C away from light for 7 days, and then filtered and filled.

[0076] Example 3

[0077] This embodiment provides a high mountain green tea flavored electronic cigarette liquid with a strong flavor.

[0078] The formula thereof comprises, by weight:

[0079] Full Spectrum Natural Green Tea Extract: 10 servings

[0080] L-theanine: 1.0 part

[0081] Disodium guanylate: 0.1 parts

[0082] (Z)-3-Hexenol: 0.05 parts

[0083] Grape seed extract: 0.4 parts

[0084] Propylene glycol: 58.45 parts

[0085] Vegetable glycerin: 40 parts

[0086] Nicotine: 2 parts

[0087] The preparation method is as follows:

[0088] First, 10 parts of full-spectrum natural green tea extract, 1.0 part of L-theanine, 0.1 part of disodium guanylate, 0.05 part of (Z)-3-hexenol and 0.4 part of grape seed extract were added to 58.45 parts of propylene glycol and stirred at 20° C. to form a premix solution.

[0089] Next, 40 parts of vegetable glycerin and 2 parts of nicotine were added to the premixed solution, and the mixture was sheared at a speed of 12,000 rpm for 10 minutes using a high shear emulsifier.

[0090] Finally, the mixed e-liquid is aged in a constant temperature environment of 20°C in the dark for 21 days, and then filtered and bottled.

[0091] Beneficial effects of the present invention:

[0092] 1. Highly realistic, richly layered aroma. This invention utilizes a two-stage, full-spectrum extraction technology to fully capture the highly volatile "top aroma" and mellow "base aroma" of natural green tea. This is precisely enhanced with trace amounts of flavor enhancers, resolving the shortcomings of existing green tea-flavored e-cigarette liquids, which suffer from aroma distortion, a single layer, and a "chemical" flavor. The product of this invention delivers a highly authentic, high-quality, natural green tea aroma with distinct top, middle, and base notes.

[0093] 2. A soft, mellow taste that's smooth and non-irritating. By incorporating flavor enhancers like L-theanine into the formula, combined with a scientific, long-term aging process, this invention effectively neutralizes the potential irritation of the e-liquid base and eliminates the sharp, off-flavored flavor of freshly formulated e-liquid. Instead of a harsh, choking taste, users experience a silky, smooth, rich, and lingering tea-like flavor.

[0094] 3. Product stability is significantly improved, and the shelf life is extended. This invention addresses the problem of natural ingredients being easily oxidized and deteriorated by introducing highly effective natural stabilizers such as ascorbic acid, tocopherol, and plant extracts into the formula, combined with a full-process, light-proof, low-temperature production process. This significantly slows the degradation of active substances in the product, effectively preventing problems such as color deepening and flavor decay during storage and transportation, significantly extending the product's effective shelf life and enhancing its commercial value.

[0095] 4. The production process is scientifically controllable and provides high quality consistency. This invention breaks down the e-cigarette liquid preparation process into multiple standardized steps with clear process parameters, including pre-dissolution, high-shear homogenization, and constant-temperature aging. This refined process ensures the full and uniform integration of all components, guaranteeing the flavor stability of the final product and high consistency across production batches. This lays a solid technical foundation for the industrialized, large-scale production of high-quality green tea-flavored e-cigarette liquid.

[0096] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A green tea flavored e-liquid formula, characterized in that: According to the mass parts, it contains the following components and raw materials: Full spectrum natural green tea extract: 1-10 parts; Compound flavor enhancer: 0.1-1.5 parts; Natural stabilizer: 0.05-0.5 parts; E-liquid base liquid: 80-120 parts; Nicotine or its salts: 0-5 parts.

2. A green tea flavored e-liquid formula according to claim 1, characterized in that: The full spectrum natural green tea extract is prepared by a method comprising the following steps: S1: Extracting green tea leaves using supercritical carbon dioxide fluid to obtain a high-fragrance extract rich in volatile aroma components; S2: The tea residue after the previous extraction step is subjected to subcritical water extraction to obtain a flavor extract rich in flavor substances; S3: mixing the high-fragrance extract and the thick-flavor extract.

3. A green tea flavored e-liquid formula according to claim 2, characterized in that: The extraction process parameters of the high-fragrant extract are: pressure 20-25MPa, temperature 45-55°C; the extraction process parameters of the thick-flavored extract are: temperature 80-00°C.

4. The green tea flavored e-liquid formula according to claim 1, wherein: The composite flavor enhancer comprises an umami and mellow flavor enhancer and a fresh and green flavor enhancer.

5. A green tea flavored e-liquid formula and preparation method thereof according to claim 4, characterized in that: The umami and mellowness enhancer is selected from at least one of L-theanine, disodium guanylate, disodium inosinate, shiitake mushroom extract, and yeast extract.

6. The green tea flavored e-liquid formula according to claim 4, characterized in that: The fresh green enhancer is selected from at least one of (Z)-3-hexenol, leaf alcohol acetal, and phenylacetaldehyde.

7. The green tea flavored e-liquid formula according to claim 1, characterized in that: The natural stabilizer is selected from at least one of ascorbic acid, tocopherol, tea polyphenols, rosemary extract, and grape seed extract.

8. The green tea flavored e-liquid formula according to claim 1, characterized in that: The e-liquid base liquid consists of propylene glycol and vegetable glycerin, and the weight ratio of the propylene glycol to the vegetable glycerin is (40-60):(60-40).

9. The method according to any one of claims 1 to 8, wherein: The following steps are involved: S1: Pre-dissolving, adding the full spectrum natural green tea extract, compound flavor enhancer and natural stabilizer to propylene glycol, stirring and mixing at a temperature of 15-25° C. to form a uniform premix solution; S2: Homogenization: mixing the premixed solution obtained in step S1 with vegetable glycerin and optionally nicotine or a salt thereof, and performing forced homogenization using a high shear emulsifier; S3: Aging: The e-liquid homogenized in step S2 is sealed and aged for 7-21 days at a constant temperature and in the dark.

10. The method of producing green tea flavored electronic cigarette oil according to claim 9, characterized in that: The shear rate of the high shear emulsifier is 8000-12000 rpm; the constant temperature of aging is 18-22°C.