阅读说明：本技术 一种含美拉德反应中间体的彩色卷烟纸及其制备方法 (Colored cigarette paper containing Maillard reaction intermediate and preparation method thereof ) 是由 雷声 王晋 刘亚 刘秀明 段焰青 李源栋 高莉 王猛 于 2021-07-12 设计创作，主要内容包括：本发明公开了一种含美拉德中间体的彩色卷烟纸,在卷烟纸的双面使用彩色染料进行染色,即得到所述含美拉德中间体的彩色卷烟纸；所述彩色染料为经饱和双氧水氧化后的多肽与还原糖的美拉德中间体。本发明还公开了所述含美拉德中间体的彩色卷烟纸的制备方法。本发明的含美拉德中间体的彩色卷烟纸色牢度高、不容易掉色、安全性高、成本低、且具有潜在特定香味的优点。(The invention discloses a colored cigarette paper containing a Maillard intermediate, wherein colored dyes are used for dyeing the two sides of the cigarette paper to obtain the colored cigarette paper containing the Maillard intermediate; the color dye is a Maillard intermediate of polypeptide and reducing sugar oxidized by saturated hydrogen peroxide. The invention also discloses a preparation method of the colored cigarette paper containing the Maillard intermediate. The colored cigarette paper containing the Maillard intermediate has the advantages of high color fastness, difficult fading, high safety, low cost and potential specific fragrance.)

1. The colored cigarette paper containing the Maillard intermediate is characterized in that colored dyes are used for dyeing the two sides of the cigarette paper to obtain the colored cigarette paper containing the Maillard intermediate; the color dye is a Maillard intermediate of polypeptide and reducing sugar oxidized by saturated hydrogen peroxide.

2. The colored cigarette paper containing the Maillard intermediate according to claim 1, wherein the preparation method of the Maillard intermediate of the polypeptide and the reducing sugar oxidized by saturated hydrogen peroxide comprises the following steps:

firstly, dissolving 1 weight part of polypeptide and 2-10 weight parts of reducing sugar in 4-20 weight parts of solvent, adjusting the pH value to 7-9, then heating to 60-90 ℃, reacting for 5-8h, and cooling to room temperature;

② adjusting the pH value to 7-9, adding 0.5-1 weight part of saturated hydrogen peroxide at the temperature of 100-120 ℃, and reacting for 24-48 hours to obtain the dispersion of the Maillard intermediate.

3. The colored cigarette paper containing the Maillard intermediate as claimed in claim 2, wherein the polypeptide in the step (r) is one or more of wheat oligopeptide, corn oligopeptide, soybean oligopeptide or enzymatic casein, and the molecular weight of the polypeptide is 500-2000; the reducing sugar is one or more of fructose, arabinose or honey.

4. The colored cigarette paper containing the maillard intermediate as claimed in claim 2, wherein the solvent of the step (r) is one or a mixture of water, propylene glycol or glycerol.

5. The colored cigarette paper containing the maillard intermediate as claimed in claim 2, wherein KOH is used for adjusting the pH value in the step (i), and K is used for adjusting the pH value in the step (ii)₂CO₃。

6. The method of producing a colored cigarette paper containing a maillard intermediate according to any of the claims 1 to 5, characterized in that it comprises the following steps:

(1) adding water into the dispersion liquid of the Maillard intermediate to adjust the mass ratio of the Maillard intermediate to the water to be 1: 1-10, and carrying out ultrasonic treatment for 1-3h to obtain a colorant solution;

(2) coating and dyeing the double surfaces of the cigarette paper by using the colorant solution in the step (1); and drying to obtain the colored cigarette paper containing the Maillard intermediate.

7. A preparation method according to claim 6, characterized in that a cigarette paper auxiliary agent is added into the colorant solution, and the cigarette paper auxiliary agent is one or two of potassium citrate or potassium malate.

Technical Field

The invention belongs to the field of tobacco materials, and particularly relates to colored cigarette paper containing a Maillard reaction intermediate and a preparation method thereof.

Background

The cigarette paper is used for wrapping a cigarette tobacco shred column and is an important component of a cigarette accessory of three papers and one rod. The cigarette paper directly participates in the combustion of the cigarette and has special and direct influence on the smoke. With the development of individuation and differentiation of cigarettes, the colored cigarette paper gradually becomes a development trend.

The currently used colored cigarette paper mainly comprises synthetic pigment dyeing, natural pigment or natural product extract. Azo dyes are generally adopted for synthesizing the pigments, and the materials and combustion cracking products thereof have safety risks; natural pigments or extracts of natural products have poor color fastness due to their poor stability and are also very expensive.

The maillard reaction intermediate has hygroscopicity and poor stability in moist heat and aerobic states. But the Maillard reaction intermediate is oxidized by saturated hydrogen peroxide and has bright color and potential for preparing colorful cigarette paper; meanwhile, the Maillard reaction intermediate is non-volatile and odorless, but can generate fragrant substances in the smoking process, so that the smoking quality of the cigarettes is obviously improved, and the characteristic of increasing the fragrance of the cigarettes is achieved.

The invention uses the Maillard reaction intermediate in the cigarette paper for the first time.

Disclosure of Invention

Aiming at the defects of the prior art, the invention provides a colored cigarette paper which is prepared by coating cigarette paper on both sides by a coating method by taking a substance of a Maillard reaction intermediate after being oxidized by saturated hydrogen peroxide as a coloring agent, and has good color fastness, high safety, low cost and latent fragrance.

The purpose of the invention is realized by the following technical scheme:

the invention discloses a colored cigarette paper containing a Maillard intermediate, wherein colored dyes are used for dyeing the two sides of the cigarette paper to obtain the colored cigarette paper containing the Maillard intermediate; the color dye is a Maillard intermediate of polypeptide and reducing sugar oxidized by saturated hydrogen peroxide.

Preferably, the preparation method of the maillard intermediate of the polypeptide and the reducing sugar oxidized by saturated hydrogen peroxide comprises the following steps:

firstly, dissolving 1 weight part of polypeptide and 2-10 weight parts of reducing sugar in 4-20 weight parts of solvent, adjusting the pH value to 7-9, then heating to 60-90 ℃, reacting for 5-8h, and cooling to room temperature;

② adjusting the pH value to 7-9, adding 0.5-1 weight part of saturated hydrogen peroxide at the temperature of 100-120 ℃, and reacting for 24-48 hours to obtain the dispersion of the Maillard intermediate.

Preferably, the polypeptide in the step (i) is one or more of wheat oligopeptide, corn oligopeptide, soybean oligopeptide or enzymatic casein, and the molecular weight of the polypeptide is 500-; the reducing sugar is one or more of fructose, arabinose or honey.

Preferably, the solvent of step (i) is one or more of water, propylene glycol or glycerol.

Preferably, KOH is used for adjusting the pH value in the step (I), and K is used for adjusting the pH value in the step (II)₂CO₃。

The second aspect of the invention discloses a preparation method of the colored cigarette paper containing the Maillard intermediate, which comprises the following steps:

(1) adding water into the dispersion liquid of the Maillard intermediate to adjust the mass ratio of the Maillard intermediate to the water to be 1: 1-10, and carrying out ultrasonic treatment for 1-3h to obtain a colorant solution;

(2) coating and dyeing the double surfaces of the cigarette paper by using the colorant solution in the step (1); and drying to obtain the colored cigarette paper containing the Maillard intermediate.

Preferably, before double-sided coating and dyeing of the cigarette paper, a cigarette paper auxiliary agent is added into the toner solution, and the cigarette paper auxiliary agent is one or two of potassium citrate or potassium malate.

The invention has the beneficial effects that:

1. the Maillard intermediate oxidized by hydrogen peroxide is used as the color pigment for coating the cigarette paper for the first time, and the obtained cigarette paper has the advantages of high wear-resistant color fastness and light color fastness, high safety, low cost and potential specific fragrance, and is not easy to fade. The color pigment of the invention can be used together with other pigments to improve the color, luster and other qualities of the cigarette paper. The cigarette paper of the present invention may also be used in the packaging of foodstuffs for the mouth.

2. According to the invention, the polypeptide is optimized while reaction conditions such as temperature, time and the like are controlled, the polypeptide is controlled to react with reducing sugar to obtain a white or milky Maillard reaction intermediate, and the Maillard reaction intermediate obtained by oxidizing saturated hydrogen peroxide is used for obtaining the color pigment. The coating is used for double-sided coating of the cigarette paper, the cigarette paper has uniform and stable color, high color fastness to wear and high color fastness to illumination, and is not easy to fade; and the cigarette smoking quality is improved, and the safety can be ensured.

3. The product of the maillard reaction has a distinct characteristic aroma, but is highly volatile and less stable. The Maillard reaction intermediate is non-volatile and odorless, but can continue to carry out Maillard reaction to generate aroma in the process of burning and smoking the cigarette. The Maillard intermediate can be used in cigarette paper to remarkably improve the smoking quality of cigarettes and has the characteristic of aroma-increasing substances.

4. The preparation method of the colored cigarette paper has simple process, can be directly produced by the existing cigarette paper production equipment, has low cost and is easy for industrial production.

Detailed Description

The present invention is further illustrated by the following examples, but the scope of the invention is not limited thereto.

Example 1

Weighing 1 part by weight of wheat oligopeptide with the molecular weight of 500 and 2 parts by weight of fructose, adding 3 parts by weight of solvent water and 1 part by weight of propylene glycol, completely dissolving, adding into a reaction kettle, adjusting the pH value to 7 with potassium hydroxide, sealing, heating to 60 ℃, reacting for 8 hours, and cooling to room temperature.

And then regulating the pH value to 7 by using potassium carbonate, adding 0.5 part by weight of saturated hydrogen peroxide at the temperature of 100 ℃, and stirring for reacting for 48 hours to obtain a dispersion liquid of the Maillard intermediate.

Adding a proper amount of potassium citrate into the dispersion liquid of the Maillard intermediate, adding water to adjust the mass ratio of the Maillard intermediate to the water to be 1: 5, and carrying out ultrasonic mixing for 1h to obtain a colorant solution; then dyeing the two sides of the cigarette paper, and drying to obtain the required colored cigarette paper containing the Maillard intermediate; the obtained cigarette paper is light yellow, bright in color and has certain baking fragrance.

Example 2

Weighing 0.5 part by weight of corn oligopeptide with molecular weight of 2000, 0.5 part by weight of soybean oligopeptide with molecular weight of 1000, 5 parts by weight of fructose and 5 parts by weight of arabinose, adding 18 parts by weight of solvent water and 2 parts by weight of glycerol, adding the mixture into a reaction kettle after complete dissolution, adjusting the pH value to 9 by potassium hydroxide, sealing, heating to 90 ℃, reacting for 8 hours, and cooling to room temperature.

And then regulating the pH value to 9 by using potassium carbonate, adding 1 part by weight of saturated hydrogen peroxide at the temperature of 120 ℃, and stirring and reacting for 24 hours to obtain a dispersion liquid of the Maillard intermediate.

Adding a proper amount of potassium malate into the dispersion liquid of the Maillard intermediate, adding water to adjust the mass ratio of the Maillard intermediate to the water to be 1: 10, carrying out ultrasonic mixing for 1h to obtain a colorant solution, and carrying out double-sided dyeing on the cigarette paper to obtain the required colored cigarette paper containing the Maillard intermediate. The obtained cigarette paper is earthy yellow and has certain baking aroma.

Example 3

Weighing 1 part by weight of enzymolysis casein with molecular weight of 1000, 4 parts by weight of fructose and 4 parts by weight of black bee honey, adding 8 parts by weight of solvent water and 2 parts by weight of glycerol, completely dissolving, adding into a reaction kettle, adjusting the pH value to 8 with potassium hydroxide, sealing, heating to 80 ℃, reacting for 6h, and cooling to room temperature.

Then, potassium carbonate is used for adjusting the pH value to 8.5, 0.75 weight part of saturated hydrogen peroxide is added at the temperature of 110 ℃, and the mixture is stirred and reacts for 36 hours to obtain the dispersion liquid of the Maillard intermediate.

Adding a proper amount of potassium malate into the dispersion liquid of the Maillard intermediate, adding water to adjust the mass ratio of the Maillard intermediate to the water to be 1: 2, carrying out ultrasonic mixing for 1h to obtain a colorant solution, and carrying out double-sided dyeing on the cigarette paper to obtain the required colored cigarette paper containing the Maillard intermediate; the obtained cigarette paper is black and has baking fragrance.

Comparative example 1

The same preparation method as that of the embodiment 3 is adopted, the step of saturated hydrogen peroxide treatment is not carried out, the control colored cigarette paper is prepared, the cigarette paper and the control cigarette paper of the embodiment 3 are placed in a constant temperature and humidity box with the temperature of 40 ℃ and the relative humidity of 60 percent for a week, then the color difference of the cigarette paper and the control cigarette paper is analyzed by a color difference meter, and the obtained data are shown in the following table 1.

TABLE 1 color fastness data

ID	Black cigarette paper obtained in example 3	Reference colored cigarette paper
			Color difference Δ E	3.682	8.792

As can be seen from Table 1, the color fastness of the colored cigarette paper obtained without the saturated hydrogen peroxide treatment step is obviously reduced.

Comparative example 2

The following control tests were carried out by selecting a white paper sheet a having the same physical properties as in example 3, a synthetic pigmented black paper sheet b of an imported brand, a natural pigmented black paper sheet c of a domestic brand and the black paper sheet obtained in example 3 as control samples.

And (3) azo detection:

the data obtained according to YQ/T62-2015 gas chromatography-mass spectrometry for determination of azo dyes which release specific aromatic amines in cigarette paper are shown in Table 2 below.

TABLE 2 aromatic amine content data

ID	a	b	c	Black cigarette paper obtained in example 3
					Total aromatic amine content: ng/Kg	1.2	243.5	24.3	2.8

As can be seen from Table 2, the aromatic amine content of the black cigarette paper obtained by the invention is far lower than that of the control sample, and the black cigarette paper has better safety.

And (3) detecting color fastness:

the cigarette paper a, b and c and the black cigarette paper obtained in example 3 were placed under sunlight for one week, and then the color difference was analyzed by a color difference meter, and the obtained data are shown in the following table 3:

TABLE 3 color fastness data

ID	a	b	c	Black cigarette paper obtained in example 3
					Color difference Δ E	0.412	1.321	6.871	1.035

As can be seen from Table 3, the black cigarette paper obtained by the invention has obviously better sunshine color fastness than a control sample and better color fastness.

Sensory evaluation of cigarettes:

the cigarette paper is prepared into cigarette cigarettes by adopting a certain-brand leaf group formula of cigarette industry Limited liability company in Yunnan for sensory evaluation, and the aroma evaluation result is shown in table 4:

TABLE 4 sensory evaluation data

As can be seen from Table 4, the cigarettes rolled by the black cigarette paper obtained by the invention have obvious characteristic fragrance style.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.