CN110301669A - A kind of preparation method and application of ultrasonically-modified tobacco humectant - Google Patents

Abstract

The invention discloses a method for preparing a tobacco moisturizing agent modified by ultrasonic waves. Ultrasonic waves can be used as a modification tool on sugar substances, and the sugar substances can be modified by using its characteristics of rapidity, high efficiency and high stereoselectivity. The ultrasonically modified tobacco moisturizing agent is prepared, and the prepared tobacco moisturizing agent is used in the field of cigarette moisturizing. Compared with the sugar substance without ultrasonic treatment, the ultrasonically modified tobacco moisturizing agent prepared by the present invention After being added to cut tobacco, the moisturizing effect of cut tobacco is significantly improved, especially in the improvement of moisture retention, irritation and dryness of cut tobacco, and the ultrasonic treatment process does not require the addition of chemical reagents and additives, which meets the requirements of green environmental protection and is simple. , fast and economical characteristics.

Description

A kind of preparation method and application of ultrasonic modified tobacco moisturizing agent

technical field

The invention belongs to the field of tobacco industry application, in particular to a preparation method and application of an ultrasonically modified tobacco moisturizing agent.

Background technique

The moisturizing property of cigarette cut tobacco is an important factor affecting the aroma, aroma and smoking comfort of cigarette. The research on cigarette moisturizing technology is an important task to improve the moisturizing performance of cigarettes, improve the smoking quality of products, and highlight the style of products, and it is also an inevitable requirement to adapt to the market. At present, domestic cigarette enterprises mainly improve the moisturizing performance of cigarettes by adding polyhydroxy compounds as moisturizing agents in the cut tobacco. However, from the actual situation, the moisturizing effect of cigarettes is not ideal. Rapid water loss, low moisture content in mainstream smoke, high irritant humectants, obvious dryness, and excessive oral phlegm.

At present, scholars around the world have carried out extensive research on substances such as sugars, organic acid salts, plant extracts and biomimetic protective agents as tobacco moisturizing agents. However, because of the abundance and variety of sugars in nature, the more sugars are found in nature. More and more attention and utilization of all walks of life, but the structure of sugar substances is complex and diverse, and the current research on the relationship between its structure and function is still relatively weak, so the application of sugar substances in tobacco humectants needs to be expanded.

SUMMARY OF THE INVENTION

The invention provides a preparation method of an ultrasonically modified tobacco moisturizing agent, which comprises the following steps:

(1) Weigh the saccharide substance, add distilled water to dissolve, then add ethanol, let stand for 6～24h, filter, collect the filtered precipitate, freeze-dry, and obtain saccharide freeze-dried product;

(2) take the saccharide freeze-dried product obtained in the step (1), add distilled water to configure a saccharide solution, get the saccharide solution in an ultrasonic reaction vessel, seal it, and carry out ultrasonic treatment to obtain a humectant solution;

(3) filtering the humectant solution obtained in step (2) with a 0.45 μm water-based membrane filter, collecting the filtered filtrate, and freeze-drying to obtain an ultrasonically modified tobacco humectant;

The ultrasonic wave is a sound wave with a frequency greater than 18kHZ, and the water-based filter membrane refers to a microporous filter membrane suitable for an aqueous solution, and a commonly used water-based microporous filter membrane such as a mixed cellulose ester membrane can be used.

Preferably, in step (1), the saccharide substance is selected from monosaccharide, polysaccharide or saccharide derivative; the concentration of ethanol is 70%.

Preferably, the concentration of the sugar solution in step (2) is 5-10 g/L.

Preferably, in step (2), the ultrasonic treatment time is 10 to 90 min; the ultrasonic treatment intensity is 121 to 361 W/cm ² (corresponding to an amplitude of 20% to 60%); the ultrasonic treatment temperature is 5 to 45 ° C; The duty cycle of the pulse wave is 33.33% to 90.00%. During the ultrasonic treatment, the temperature of the sugar solution is controlled by the external circulation of a constant temperature water bath, and the temperature is measured by a temperature probe carried by the ultrasonic reaction vessel itself.

The second aspect of the present invention provides a method for improving the moisturizing performance of cut tobacco, by uniformly spraying the ultrasonically modified tobacco into the cut tobacco according to the proportion that the quality of the tobacco moisturizing agent accounts for 1/100 to 5/100 of the quality of the cut tobacco humectant.

The present invention adopts the following method to investigate the moisturizing performance of cigarette cut tobacco:

First, bake the cut tobacco samples in an oven at 100-150°C for 5-10 minutes to keep the moisture content of the cut tobacco at 12±1%, and then place the cut tobacco samples in an environment with a temperature of 22±1°C and a relative humidity of 60±2% for 24～ 48h, the cut tobacco sample to be tested was obtained;

Then, the cut tobacco samples to be tested are tested for the moisture absorption process and the dehumidification process respectively:

A. Moisture absorption process: Take 20g of the cut tobacco sample to be tested, put it in a constant temperature and humidity box with a temperature of 22±1°C and a relative humidity of 70±2% for balance, measure the weight of the sample every 24h, and continue to observe it for 120h;

B. Dehumidification process: Take 20g of the cut tobacco sample to be tested and place it in a constant temperature and humidity box with a temperature of 22±1°C and a relative humidity of 50±2% for equilibrium. The weight of the sample is measured every 24h, and the observation is continued for 120h.

According to the weight of the samples measured at each time point, the moisture content of the cut tobacco at this time point is calculated, and the calculation formula is: moisture content=[(M ₀ -M ₁ )/M ₀ ]×100%, wherein M ₀ is the weight of the cut tobacco sampled; M ₁ is the weight of cut tobacco after drying.

The present invention adopts the following method to carry out sensory evaluation to cigarettes:

The cigarette shreds were rolled into cigarettes to obtain cigarette samples, and sensory evaluation was carried out on them. Sensory evaluation of cigarette samples by multiple sensory evaluation personnel mainly examines three aspects of aroma, smoke and taste characteristics, including aroma quality, aroma amount, miscellaneous air, concentration, strength, fineness, irritation, dryness , cleanness and sweetness; the scoring values of the 10 quality inspection indicators are: aroma quality 0-10 points, aroma quantity 0-10 points, miscellaneous gas 0-10 points, concentration 0-10 points, 0-10 points for energy, 0-10 points for fineness, 0-10 points for irritation, 0-10 points for dryness, 0-10 points for cleanliness, and 0-10 points for sweetness. The stronger the feeling of the evaluation index.

The third aspect of the present invention provides the use of the ultrasonically modified tobacco moisturizing agent for improving the aroma quality, aroma amount, miscellaneous air, irritation, dryness and/or sweetness of cut tobacco of cigarettes.

A fourth aspect of the present invention provides the use of an ultrasonic technology for improving the moisturizing performance of a tobacco moisturizing agent, wherein the ultrasonic wave is a sound wave with a frequency greater than 18 kHz.

The tobacco moisturizing agent described in the present invention is the ultrasonically modified tobacco moisturizing agent prepared by the present invention.

Ultrasound is a sound wave (>18kHZ) higher than the human hearing threshold. Ultrasonic processing technology has been applied to the extraction and modification of food functional components. effect, thermodynamic and non-thermodynamic effects.

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

1. The present invention utilizes the characteristics that ultrasonic waves can produce multiple effects such as strong cavitation effect, perturbation effect, high shear, crushing and stirring, and uses ultrasonic waves as a modification tool on sugar substances, and utilizes its fast and efficient method. And the characteristics of high stereoselectivity are modified sugar substances to obtain ultrasonically modified tobacco moisturizing agent, and the prepared tobacco moisturizing agent is used in the field of cigarette moisturizing, compared with sugars without ultrasonic treatment. After the ultrasonic modified tobacco moisturizing agent prepared by the present invention is added to the cut tobacco, the moisturizing effect of the cut tobacco is obviously improved, especially in the improvement of moisture retention, irritation and dryness of the cut tobacco.

2. The present invention applies ultrasonic technology to the preparation of cigarette cut humectant for the first time, and the ultrasonic treatment process does not need to add chemical reagents and additives, which meets the requirements of green environmental protection, and has the characteristics of simplicity, speed and economy.

Detailed ways

In order to make the objectives, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention, but not to limit the present invention.

Comparative ratio

This comparative example firstly prepares a tobacco moisturizing agent comparative sample, which includes the following steps:

(1) Weigh 10 g of pullulan, add distilled water to dissolve, then add 50 mL of ethanol with a concentration of 70%, let stand for 12 h, filter with filter paper, collect the filtered precipitate, freeze-dried, and obtain pullulan freeze-dried;

(2) Take the pullulan polysaccharide freeze-dried product obtained in step (1), add distilled water to prepare a pullulan polysaccharide solution with a concentration of 5g/L, filter the pullulan polysaccharide solution with a 0.45 μm water-based filter membrane, collect and filter The obtained filtrate was freeze-dried to obtain a comparative sample of pullulan humectant.

Then, take 100g of cut tobacco and evenly spray with 5g of pullulan as a humectant as a comparative sample, then bake it in an oven at 110°C for 5 minutes to keep the moisture content of the cut tobacco at 12±1%, and place the sample at a temperature of 22±1°C and a relative humidity Equilibrate in a 60±2% environment for 48 hours to obtain a cut tobacco comparative sample.

Example

This embodiment first prepares an ultrasonically modified tobacco moisturizing agent sample, which comprises the following steps:

(1) Weigh 10 g of pullulan, add distilled water to dissolve, then add 50 mL of ethanol with a concentration of 70%, let stand for 12 h, filter with filter paper, collect the filtered precipitate, freeze-dried, and obtain pullulan freeze-dried;

(2) take the pullulan polysaccharide freeze-dried product obtained in step (1), add distilled water to configure a pullulan polysaccharide solution with a concentration of 5g/L, take the pullulan polysaccharide solution in an ultrasonic reaction vessel, seal , carry out ultrasonic treatment, obtain pullulan polysaccharide emollient solution;

(3) Filter the pullulan humectant solution obtained in step (2) with a 0.45 μm water-based membrane filter, collect the filtered filtrate, freeze-dry it, and obtain a pullulan humectant sample

The ultrasonic waves are sound waves with a frequency greater than 18kHZ.

Wherein, in step (2), ultrasonic treatment time is 10min; ultrasonic treatment intensity is 181W/cm ² (corresponding amplitude is 30%); ultrasonic treatment temperature is 15 ℃; in ultrasonic treatment process, pulse wave duty ratio is 50.00%. During the ultrasonic treatment, the temperature of the sugar solution is controlled by the external circulation of a constant temperature water bath, and the temperature is measured by a temperature probe carried by the ultrasonic reaction vessel itself.

Then, take 100 g of cut tobacco of the same brand as the comparative example and evenly spray 5 g of pullulan as a humectant sample, then bake it in an oven at 110°C for 5 min to keep the cut tobacco moisture at 12 ± 1%, and place the sample at a temperature of 22 ± 1°C and relative humidity of 60±2% were equilibrated for 48 hours to obtain cut tobacco samples.

Then, the moisture absorption process test and the dehumidification process test were performed on the tobacco control sample and the tobacco sample respectively to investigate the moisturizing performance of the cigarette cut:

A. Moisture absorption process: Take 20g of the cut tobacco sample to be tested, put it in a constant temperature and humidity box with a temperature of 22±1°C and a relative humidity of 70±2% for balance, measure the weight of the sample every 24h, and continue to observe it for 120h;

B. Dehumidification process: Take 20g of the cut tobacco sample to be tested and place it in a constant temperature and humidity box with a temperature of 22±1°C and a relative humidity of 50±2% for equilibrium. The weight of the sample is measured every 24h, and the observation is continued for 120h.

According to the weight of the samples measured at each time point, the moisture content of the cut tobacco at this time point is calculated, and the calculation formula is: moisture content=[(M ₀ -M ₁ )/M ₀ ]×100%, wherein M ₀ is the weight of the cut tobacco sampled; M ₁ is the weight of cut tobacco after drying.

The changes of moisture content in the moisture absorption process and the dehumidification process of the above-mentioned cut tobacco control sample and cut tobacco sample are shown in Table 1.

The cut tobacco sample and the cut tobacco sample are rolled into cigarettes under the same conditions, to obtain the cigarette control sample and the tobacco sample, and perform sensory evaluation on them. Sensory evaluation of cigarette samples by multiple sensory evaluation personnel mainly examines three aspects of aroma, smoke and taste characteristics, including aroma quality, aroma amount, miscellaneous air, concentration, strength, fineness, irritation, dryness , cleanness and sweetness; the scoring values of the 10 quality inspection indicators are: aroma quality 0-10 points, aroma quantity 0-10 points, miscellaneous gas 0-10 points, concentration 0-10 points, 0-10 points for energy, 0-10 points for fineness, 0-10 points for irritation, 0-10 points for dryness, 0-10 points for cleanliness, and 0-10 points for sweetness. The stronger the feeling of the evaluation index. The sensory evaluation scores of the cigarette control sample and the cigarette sample are shown in Table 2.

Table 1 Changes in moisture content (%) of different cut tobacco samples in the process of moisture absorption and dehumidification

It can be clearly seen from Table 1 that the moisture value of the cut tobacco sample is significantly lower than that of the cut tobacco control sample after the tobacco cut sample and the cut tobacco control sample are simultaneously subjected to a moisture absorption process of 120h, while the cut tobacco sample and the cut tobacco control sample simultaneously undergo 120h of moisture absorption. After the dehumidification process, the moisture value of the cut tobacco sample was significantly higher than that of the control sample of cut tobacco, indicating that the use of ultrasound as a modification tool on sugars can improve the retention of sugars and tobacco moisturizing agents. Compared with sugars without ultrasonic treatment, after the ultrasonically modified tobacco moisturizing agent prepared in the embodiment of the present invention is added to the cut tobacco, the moisturizing effect and moisture-proof effect of the cut tobacco are obviously improved.

Table 2 Sensory evaluation results of different cigarette samples

As can be seen from Table 2, the taste characteristics of the cigarette samples are obviously better than those of the cigarettes and the comparison samples, especially the irritation and dryness are significantly improved.

Claims (7)

1. a kind of preparation method of ultrasonically-modified tobacco humectant, which is characterized in that itself the following steps are included:

(1) glucide is weighed, is added after distilled water dissolves and ethyl alcohol is added, standing 6~for 24 hours, the precipitating filtered out is collected in filtering, Freeze-drying, obtains carbohydrate lyophilized products；

(2) take carbohydrate lyophilized products obtained in step (1), distilled water be added and is configured to saccharide solution, take the saccharide solution in It is closed in ultrasonic response container, ultrasonication is carried out, humectation agent solution is obtained；

(3) using the obtained humectation agent solution in 0.45 μm of water system membrane filtration step (2), filtered filtrate is collected, is frozen It is dry, obtain ultrasonically-modified tobacco humectant；

The ultrasonic wave is the sound wave that frequency is greater than 18kHZ.

2. preparation method according to claim 1, which is characterized in that glucide described in step (1) is selected from monosaccharide, more Sugar or carbohydrate derivative；The concentration of the ethyl alcohol is 70%.

3. preparation method according to claim 1, which is characterized in that the concentration of saccharide solution described in step (2) be 5~ 10g/L。

4. preparation method according to claim 1, which is characterized in that in step (2) ultrasonic treatment time be 10~ 90min；Ultrasonication intensity is 121~361 W/cm²；Ultrasonication temperature is 5~45 DEG C；During ultrasonication Impulse wave duty ratio is 33.33%~90.00%.

5. a kind of method for improving pipe tobacco humid keeping performance, which is characterized in that add described in Claims 1 to 4 and surpass in the tobacco The modified tobacco humectant of sound wave, the quality of the ultrasonically-modified tobacco humectant of addition account for the 1/100 of tobacco quality ~10/100.

6. ultrasonically-modified tobacco humectant described in a kind of Claims 1 to 4 is for improving cigarette shreds aroma quality, fragrance Amount, miscellaneous gas, irritation, dry sensation and/or the purposes for returning sugariness energy.

7. a kind of ultrasonic technology is used to improve the purposes of tobacco humectant humid keeping performance, which is characterized in that the ultrasonic wave is Frequency is greater than the sound wave of 18kHZ.