CN111234276A - Preparation method of multi-component plant polysaccharide feed liquid and application of multi-component plant polysaccharide feed liquid in improving alcoholization quality of tobacco leaves - Google Patents
Preparation method of multi-component plant polysaccharide feed liquid and application of multi-component plant polysaccharide feed liquid in improving alcoholization quality of tobacco leaves Download PDFInfo
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- CN111234276A CN111234276A CN202010120539.6A CN202010120539A CN111234276A CN 111234276 A CN111234276 A CN 111234276A CN 202010120539 A CN202010120539 A CN 202010120539A CN 111234276 A CN111234276 A CN 111234276A
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
- C08J5/18—Manufacture of films or sheets
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- 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
- A24B15/20—Biochemical treatment
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- 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
- A24B15/28—Treatment of tobacco products or tobacco substitutes by chemical substances
- A24B15/30—Treatment of tobacco products or tobacco substitutes by chemical substances by organic substances
- A24B15/302—Treatment of tobacco products or tobacco substitutes by chemical substances by organic substances by natural substances obtained from animals or plants
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J3/00—Processes of treating or compounding macromolecular substances
- C08J3/28—Treatment by wave energy or particle radiation
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2305/00—Characterised by the use of polysaccharides or of their derivatives not provided for in groups C08J2301/00 or C08J2303/00
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2405/00—Characterised by the use of polysaccharides or of their derivatives not provided for in groups C08J2401/00 or C08J2403/00
Abstract
The invention discloses a preparation method of a multi-component plant polysaccharide feed liquid and application of the multi-component plant polysaccharide feed liquid in improving alcoholization quality of tobacco leaves. On the other hand, the invention improves the alcoholization quality of the tobacco leaves by improving the water retention performance of the re-baked tobacco leaves in the alcoholization process, and saves the resource waste caused by the change of alcoholization environment. The aroma, smoke and taste of the tobacco leaves added with the feed liquid are obviously improved after alcoholization. The invention has simple process, obvious effect, lower cost and easy popularization.
Description
Technical Field
The invention belongs to the field of application of tobacco industry, and particularly relates to preparation of a multi-component plant polysaccharide feed liquid and application of the multi-component plant polysaccharide feed liquid in improving alcoholization quality of tobacco leaves.
Background
The tobacco mellowing is an important link for improving the quality of the tobacco and has important influence on improving the quality of cigarette products. At present, the more alcoholization modes are natural alcoholization, and the alcoholized tobacco leaves can be better improved in aroma and taste absorption quality. For the natural alcoholization of the tobacco leaves, the alcoholization time of the cured tobacco with slightly high water content after redrying is relatively short, the alcoholization time of the tobacco leaves is too long, and the inherent quality of the tobacco leaves is gradually reduced; the excessively alcoholized tobacco leaves have weakened fragrance and excessively dark color, and meanwhile, the moisture retention capability of the tobacco leaves is reduced, the leaves are brittle, and the tobacco leaves are easy to be broken in subsequent processing. Therefore, the method is particularly important for keeping proper moisture of the tobacco leaves in the tobacco leaf alcoholization process.
In order to solve the problems, some researches are started from the whole, and the method is centered on how to keep the proper moisture of the tobacco leaves, for example, the tobacco leaves are alcoholized in an air-conditioning warehouse with the temperature and the humidity in a controllable range, the performance of the alcoholized tobacco leaves on the appearance and the smoking quality is superior to that of a conventional alcoholizing warehouse with the uncontrollable temperature and the humidity, and the tobacco leaves are alcoholized in a low-temperature sealed oxygen-reduction warehouse, so that a good effect is achieved. The methods are all researched aiming at the alcoholization environment, and how to improve the moisture retention performance of the tobacco leaves is not deeply discussed, and as the storage mode is changed, a series of related work such as construction and transformation of a warehouse needs to be completed, time is consumed, and the operation cost of an enterprise is increased. On the other hand, the picked tobacco leaves are subjected to an alcoholization process only after threshing and redrying, and the quality of the redried tobacco leaves is poor, so that the moisture retention performance of the tobacco juice is relatively difficult to improve.
Therefore, in order to improve the alcoholization quality of the tobacco leaves, it is urgently required to develop a method capable of improving the moisture retention property of the tobacco leaves themselves.
The present invention has been made to solve the above problems.
Disclosure of Invention
Aiming at the problems in the prior art, the invention develops the feed liquid suitable for the field of tobacco to keep the moisture of the re-baked tobacco leaves and improve the moisture retention performance of the tobacco leaves, thereby improving the alcoholization quality of the tobacco leaves.
The first aspect of the invention provides a preparation method of a multi-component plant polysaccharide feed liquid, wherein the multi-component plant polysaccharide feed liquid at least comprises two plant polysaccharides, and the preparation method comprises the following steps:
(1) weighing first plant polysaccharide, dissolving the first plant polysaccharide in water, and stirring to obtain first plant polysaccharide sol; weighing second plant polysaccharide, dissolving the second plant polysaccharide in water, and stirring to obtain second plant polysaccharide sol;
(2) adding the first plant polysaccharide sol into the second plant polysaccharide sol, stirring, and then adjusting the pH of the mixed sol to 7.0 by using NaOH to obtain a multi-component plant polysaccharide sol;
(3) carrying out microwave treatment on the multi-component plant polysaccharide sol obtained in the step (2);
(4) heating the multi-component plant polysaccharide sol subjected to microwave treatment in the step (3) at 60-100 ℃ for 0.5-1h, cooling, and adding glycerol to obtain a multi-component plant polysaccharide emulsion;
(5) taking the multi-component plant polysaccharide emulsion obtained in the step (4), and placing the emulsion in a constant-temperature constant-humidity drying oven for drying to obtain a multi-component plant polysaccharide film;
(6) and (3) preparing the multi-component plant polysaccharide film prepared in the step (5) into a 5-10% solution to obtain the multi-component plant polysaccharide feed liquid.
Preferably, the first plant polysaccharide in step (1) is selected from algal polysaccharides, such as laminarin; the second plant polysaccharide is selected from edible fungus polysaccharide, such as lentinan.
Preferably, 1-10g of the first plant polysaccharide is weighed in the step (1), dissolved in 100-500mL of deionized water, the temperature of the deionized water is 55-65 ℃, and continuously stirred for 1-2h to obtain first plant polysaccharide sol; weighing 1-10g of second plant polysaccharide, dissolving into 100-500mL of deionized water, wherein the temperature of the deionized water is 55-65 ℃, and continuously stirring for 1-2h to obtain second plant polysaccharide sol.
Preferably, 50-200mL of the first plant polysaccharide sol prepared in the step (1) is added into 50-200mL of the second plant polysaccharide sol prepared in the step (2) while stirring, and the stirring speed is 800-1200 r/min.
Preferably, the pH of the mixed solution obtained in the step (2) is adjusted to 7.0 by using 1-3mol/L NaOH to obtain the multi-component plant polysaccharide sol.
Preferably, the microwave treatment conditions in step (3) are: the microwave treatment intensity is 100-500W, the treatment time is 1-20min, and the temperature of the multi-component plant polysaccharide sol is controlled to be 30-60 ℃ in the treatment process.
Preferably, the mixed solution after microwave treatment in the step (4) is heated in a water bath kettle at the temperature of 60-100 ℃ for 0.5-1h, and 0.3-3g of glycerol is added after cooling to obtain the multi-component plant polysaccharide emulsion.
Preferably, in the step (5), the multi-component plant polysaccharide emulsion is poured into a polyethylene culture dish, and is placed in a constant temperature and humidity drying oven with the temperature of 25 +/-1 ℃ and the RH of 53 +/-1% for drying, so as to obtain the multi-component plant polysaccharide film.
The second aspect of the invention provides an application of the polybasic plant polysaccharide feed liquid prepared by the first aspect of the invention in improving the alcoholization quality of tobacco leaves, wherein the polybasic plant polysaccharide feed liquid is added into the tobacco leaves to improve the moisture retention performance and the moisture resistance of the tobacco leaves in the alcoholization process, and the mass of the added polybasic plant polysaccharide feed liquid accounts for 3-8% of the mass of the tobacco leaves.
Directly carrying out alcoholization treatment on the threshed and redried tobacco leaves, wherein the alcoholization process and the alcoholization quality evaluation method comprise the following steps:
(A) the multi-component plant polysaccharide feed liquid prepared in the step (6) of the invention is uniformly added into the redried tobacco leaves according to the proportion of 3-8% of the weight of the tobacco leaves.
(B) And packaging the tobacco leaves added with the multi-component plant polysaccharide feed liquid, and placing the tobacco leaves in a conventional warehouse for storage and alcoholization.
(C) Testing the water content of the sample added with the multi-element plant polysaccharide feed liquid after alcoholization for a period of time, respectively alcoholizing for 6 months, 12 months, 15 months and 18 months, then respectively sampling 50g of samples, measuring the water content of the cut tobacco by adopting an oven method, and calculating according to the formula: water content [ (M) ]0-M1)/M0]X 100%, wherein M0The weight of the sampled cut tobacco is used; m1Is the weight of the dried tobacco shreds.
(D) Performing sensory evaluation on the sample obtained in the step (C), mainly investigating three aspects of aroma, smoke and taste characteristics, wherein the three aspects comprise 10 indexes of aroma quality, aroma quantity, miscellaneous gas, concentration, strength, fineness, irritation, dry feeling, cleanliness and sweet return; the scoring values of the 10 quality detection indexes are respectively as follows: 0-10 minutes of fragrance quality, 0-10 minutes of fragrance amount, 0-10 minutes of miscellaneous gas, 0-10 minutes of concentration, 0-10 minutes of strength, 0-10 minutes of fineness, 0-10 minutes of irritation, 0-10 minutes of dry feeling, 0-10 minutes of cleanness degree and 0-10 minutes of rewweet.
Compared with the prior art, the invention has the following beneficial effects:
1. the invention does not research the alcoholization environment, but develops a feed liquid for keeping the moisture of the redried tobacco leaves by combining a blending mode with a microwave auxiliary means, improves the alcoholization quality of the tobacco leaves by improving the water retention performance of the redried tobacco leaves in the alcoholization process, saves a series of related works such as the construction and the reconstruction of a warehouse caused by the change of a storage mode, and saves the resource waste caused by the change of the alcoholization environment. The prepared feed liquid is added into the redried tobacco leaves and is placed in a conventional warehouse for storage alcoholization, and compared with the tobacco leaves without the feed liquid, the water content of the tobacco leaves is kept better in the alcoholization process. The aroma, smoke and taste of the tobacco leaves added with the feed liquid are obviously improved after alcoholization.
2. Aiming at redried tobacco leaves, the invention develops a multi-component plant polysaccharide feed liquid by combining a blending mode and a microwave auxiliary means, which is used for keeping the moisture of the redried tobacco leaves in the alcoholization process, the feed liquid not only can exert the unique property of single plant polysaccharide, but also can enable a plurality of plant polysaccharides to generate a blending system with better performance, improve the barrier property and the mechanical property of the polysaccharide solution after film formation, and further enable the prepared multi-component plant polysaccharide feed liquid to have good water retention performance in the tobacco.
3. The invention can well keep the moisture content of the tobacco leaves in the alcoholization process, is more beneficial to the natural alcoholization of the tobacco leaves, further shortens the alcoholization time of the tobacco leaves and effectively relieves the inventory pressure of enterprises.
4. The invention can effectively avoid over-alcoholization of the tobacco leaves, and the aroma, smoke and taste of the tobacco leaves treated by the invention are obviously improved after alcoholization.
5. The multi-component plant polysaccharide feed liquid prepared by combining the blending mode and the microwave auxiliary means has the advantages of simple process, obvious effect, low cost and easy popularization.
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Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the following embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Comparative example
Tobacco leaves of the same grade as those in examples 1 to 3 were taken as a tobacco leaf pair comparison sample, and packed and then placed in the same warehouse for alcoholization with the tobacco leaves treated by the present invention. 50g of each sample was sampled at 6 months, 12 months, 15 months and 18 months of alcoholization, and moisture content measurement and sensory evaluation were performed in the same manner as in example 4 described below. The results are shown in tables 1 and 2.
Example 1
The embodiment is a preparation method of a kelp plant polysaccharide feed liquid and an application of the kelp plant polysaccharide feed liquid in improving tobacco mellowing quality, and the method specifically comprises the following steps:
(1) weighing 10g of laminarin, dissolving into 500mL of deionized water, wherein the temperature of the deionized water is 55 ℃, and continuously stirring for 1h to obtain laminarin sol.
(2) Taking 200mL of the laminarin sol prepared in the step (1), and adjusting the pH value to 7.0 by using 2mol/L NaOH.
(3) Pouring the solution with the pH adjusted into a polytetrafluoroethylene tank, putting the polytetrafluoroethylene tank into a microwave device, continuously stirring the solution, and treating the solution in a continuous microwave applying manner, wherein the microwave treatment intensity is 600W, the treatment time is 8min, and the solution temperature is controlled at 40 ℃.
(4) Heating the mixed solution after microwave treatment in a water bath kettle at 80 ℃ for 0.5h, cooling, and adding 2g of glycerol to obtain the laminarin film emulsion.
(5) 200mL (4) of the obtained laminarin film emulsion is slowly poured into a polyethylene culture dish and placed in a constant temperature and humidity drying box with the temperature of 25 +/-1 ℃ and the RH of 53 +/-1 percent for drying.
(6) And (4) removing the dried laminarin film, and storing in a constant-temperature constant-humidity drying box with the RH of 53%.
Example 2
The embodiment is a preparation method of a kelp plant polysaccharide feed liquid and an application of the kelp plant polysaccharide feed liquid in improving tobacco mellowing quality, and the method specifically comprises the following steps:
(1) weighing 10g of lentinan, dissolving into 500mL of deionized water, wherein the temperature of the deionized water is 55 ℃, and continuously stirring for 1h to obtain lentinan sol.
(2) And (2) taking 200mL of lentinan sol prepared in the step (1), and adjusting the pH value to 7.0 by using 2mol/L NaOH.
(3) Pouring the solution with the pH adjusted into a polytetrafluoroethylene tank, putting the polytetrafluoroethylene tank into a microwave device, continuously stirring the solution, and treating the solution in a continuous microwave applying manner, wherein the microwave treatment intensity is 600W, the treatment time is 8min, and the solution temperature is controlled at 40 ℃.
(4) Heating the mixed solution after microwave treatment in a water bath kettle at 80 ℃ for 0.5h, cooling, and adding 2g of glycerol to obtain the lentinan film emulsion.
(5) Slowly pouring 200mL (4) of the obtained lentinan membrane emulsion into a polyethylene culture dish, and placing the culture dish in a constant-temperature constant-humidity drying oven with the temperature of 25 +/-1 ℃ and the RH of 53 +/-1% for drying.
(6) And (3) removing the dried lentinan film, and storing in a constant-temperature constant-humidity drying box with the RH of 53%.
Example 3
The embodiment is a preparation method of a multi-component plant polysaccharide feed liquid and an application of the multi-component plant polysaccharide feed liquid in improving tobacco mellowing quality, and specifically comprises the following steps:
(1) weighing 5g of laminarin, dissolving the laminarin in 250mL of deionized water, wherein the temperature of the deionized water is 55 ℃, and continuously stirring for 1h to obtain the plant polysaccharide sol.
(2) Weighing 5g of lentinan, dissolving into 250mL of deionized water, wherein the temperature of the deionized water is 55 ℃, and continuously stirring for 1h to obtain the plant polysaccharide sol.
(3) And (3) slowly adding 100mL of the plant polysaccharide sol prepared in the step (1) into 100mL of the plant polysaccharide sol prepared in the step (2) while stirring, wherein the stirring speed is 900 r/min.
(4) The pH of the mixed solution was adjusted to 7.0 with 2mol/L NaOH.
(5) Pouring the solution with the pH adjusted into a polytetrafluoroethylene tank, putting the polytetrafluoroethylene tank into a microwave device, continuously stirring the solution, and treating the solution in a continuous microwave applying manner, wherein the microwave treatment intensity is 600W, the treatment time is 8min, and the solution temperature is controlled at 40 ℃.
(6) Heating the mixed solution after microwave treatment in a water bath kettle at 80 ℃ for 0.5h, cooling, and adding 2g of glycerol to obtain the multi-component plant polysaccharide membrane emulsion.
(7) 200mL (6) of the obtained multi-component plant polysaccharide membrane emulsion is slowly poured into a polyethylene culture dish and is placed in a constant temperature and humidity drying box with the temperature of 25 +/-1 ℃ and the RH of 53 +/-1 percent for drying.
(8) And (3) removing the dried multi-component plant polysaccharide film, and storing in a constant temperature and humidity drying box with the RH of 53%.
Example 4
The laminarin films, the lentinan films and the multi-component plant polysaccharide films prepared in examples 1, 2 and 3 were respectively prepared into 8% solutions, and the 8% solutions were uniformly added to redried tobacco leaves at a ratio of 5% by weight of the tobacco leaves, to obtain tobacco leaf samples 1, 2 and 3.
And (3) packaging the tobacco leaf comparison sample, the tobacco leaf sample 1, the tobacco leaf sample 2 and the tobacco leaf sample 3 which are added with the laminarin film, the lentinan film and the multi-plant polysaccharide film, and placing the tobacco leaf comparison sample, the tobacco leaf sample 1, the tobacco leaf sample 2 and the tobacco leaf sample 3 in a conventional warehouse for storage alcoholization.
Respectively carrying out moisture content detection and sensory evaluation on the tobacco leaf comparison sample, the tobacco leaf sample 1, the tobacco leaf sample 2 and the tobacco leaf sample 3:
after alcoholizing for a period of time, testing the moisture content of the tobacco leaf reference sample, the tobacco leaf sample 1, the tobacco leaf sample 2 and the tobacco leaf sample 3, respectively alcoholizing for 6 months, 12 months, 15 months and 18 months, respectively taking 50g of samples, measuring the moisture content of the tobacco shreds by adopting an oven method, and calculating according to a formula: water content [ (M) ]0-M1)/M0]X 100%, wherein M0The weight of the sampled cut tobacco is used; m1Is the weight of the dried tobacco shreds. The results are shown in Table 1.
Carrying out sensory evaluation on the tobacco leaf comparison sample, the tobacco leaf sample 1, the tobacco leaf sample 2 and the tobacco leaf sample 3 after alcoholization for a period of time, mainly investigating three aspects of aroma, smoke and taste characteristics, comprising 10 indexes of aroma quality, aroma quantity, miscellaneous gas, concentration, strength, fineness, irritation, dry feeling, cleanliness and rewweet; the scoring values of the 10 quality detection indexes are respectively as follows: 0-10 minutes of fragrance quality, 0-10 minutes of fragrance amount, 0-10 minutes of miscellaneous gas, 0-10 minutes of concentration, 0-10 minutes of strength, 0-10 minutes of fineness, 0-10 minutes of irritation, 0-10 minutes of dry feeling, 0-10 minutes of cleanness degree and 0-10 minutes of rewweet. The results are shown in Table 2.
TABLE 1 moisture content change in different tobacco samples (%) -during the alcoholization process
| Alcoholization time (h) | Moisture content of packaging | 6 months old | 12 months old | 15 months old | 18 months old |
| Tobacco leaf comparison sample | 12.54 | 11.10 | 10.24 | 9.78 | 9.57 |
| Tobacco leaf sample 1 | 12.55 | 11.70 | 10.53 | 10.26 | 10.07 |
| Tobacco leaf sample 2 | 12.55 | 11.65 | 10.45 | 10.19 | 9.98 |
| Tobacco leaf sample 3 | 12.55 | 12.16 | 11.32 | 11.18 | 11.03 |
TABLE 2 sensory evaluation results of different tobacco leaf samples
As is apparent from table 1, compared with the tobacco leaf comparison sample, under the condition that the packaging moisture is basically consistent, the moisture contents of the tobacco leaf sample 1, the tobacco leaf sample 2 and the tobacco leaf sample 3 in each sampling period are all higher than those of the tobacco leaf comparison sample, so that the tobacco leaf comparison sample shows good water retention performance, and the water retention performance of the tobacco leaf sample 3 is superior to that of the tobacco leaf sample 1 and the tobacco leaf sample 2. The reason is that the feed liquid containing two plant polysaccharides developed by combining the blending mode with the microwave-assisted means in the embodiment 2 not only can exert the unique properties of a single plant polysaccharide, but also can enable a plurality of plant polysaccharides to generate a blending system with better performance, so that the barrier property and the mechanical property of the polysaccharide solution after film formation are improved, and the prepared multi-component plant polysaccharide feed liquid has good water retention property in tobacco leaves.
As can be seen from table 2, compared with the tobacco leaf comparison sample, the tobacco leaf sample 1 and the tobacco leaf sample 2, the tobacco leaf sample 3 of the present invention is obviously better than the tobacco leaf comparison sample, the tobacco leaf sample 1 and the tobacco leaf sample 2 in the characteristics of aroma, smoke and taste at each sampling period, which shows that the tobacco leaf alcoholization effect is better, and the smoking quality is obviously better than the tobacco leaf comparison sample, the tobacco leaf sample 1 and the tobacco leaf sample 2, which shows that the present invention can actually improve the tobacco leaf alcoholization quality by improving the water retention property of the re-baked tobacco leaves in the alcoholization process.
Claims (9)
1. The preparation method of the multi-component plant polysaccharide feed liquid is characterized in that the multi-component plant polysaccharide feed liquid at least comprises two plant polysaccharides, and the preparation method comprises the following steps:
(1) weighing first plant polysaccharide, dissolving the first plant polysaccharide in water, and stirring to obtain first plant polysaccharide sol; weighing second plant polysaccharide, dissolving the second plant polysaccharide in water, and stirring to obtain second plant polysaccharide sol;
(2) adding the first plant polysaccharide sol into the second plant polysaccharide sol, stirring, and then adjusting the pH of the mixed sol to 7.0 by using NaOH to obtain a multi-component plant polysaccharide sol;
(3) carrying out microwave treatment on the multi-component plant polysaccharide sol obtained in the step (2);
(4) heating the multi-component plant polysaccharide sol subjected to microwave treatment in the step (3) at 60-100 ℃ for 0.5-1h, cooling, and adding glycerol to obtain a multi-component plant polysaccharide emulsion;
(5) taking the multi-component plant polysaccharide emulsion obtained in the step (4), and placing the emulsion in a constant-temperature constant-humidity drying oven for drying to obtain a multi-component plant polysaccharide film;
(6) and (3) preparing the multi-component plant polysaccharide film prepared in the step (5) into a 5-10% solution to obtain the multi-component plant polysaccharide feed liquid.
2. The method according to claim 1, wherein the first plant polysaccharide in step (1) is selected from algal polysaccharides; the second plant polysaccharide is selected from edible fungus polysaccharide.
3. The preparation method according to claim 1, wherein 1-10g of the first plant polysaccharide is weighed in the step (1), dissolved in 100-500mL of deionized water, the temperature of the deionized water is 55-65 ℃, and continuously stirred for 1-2h to obtain a first plant polysaccharide sol; weighing 1-10g of second plant polysaccharide, dissolving into 100-500mL of deionized water, wherein the temperature of the deionized water is 55-65 ℃, and continuously stirring for 1-2h to obtain second plant polysaccharide sol.
4. The preparation method according to claim 1, wherein 50-200mL of the first plant polysaccharide sol prepared in step (1) is added into 50-200mL of the second plant polysaccharide sol prepared in step (2) while stirring at a stirring speed of 800-.
5. The preparation method according to claim 1, wherein the pH of the mixed solution obtained in the step (2) is adjusted to 7.0 by using 1-3mol/L NaOH to obtain the multi-component plant polysaccharide sol.
6. The preparation method according to claim 1, wherein the microwave treatment conditions in the step (3) are as follows: the microwave treatment intensity is 100-500W, the treatment time is 1-20min, and the temperature of the multi-component plant polysaccharide sol is controlled to be 30-60 ℃ in the treatment process.
7. The preparation method according to claim 1, wherein the mixed solution after microwave treatment in step (4) is heated in a water bath kettle at 60-100 ℃ for 0.5-1h, and 0.3-3g of glycerol is added after cooling to obtain the multi-component plant polysaccharide emulsion.
8. The preparation method according to claim 1, wherein the emulsion of the plant polysaccharides in step (5) is poured into a polyethylene culture dish, and the polyethylene culture dish is placed in a constant temperature and humidity drying oven with the temperature of 25 +/-1 ℃ and the RH of 53 +/-1% for drying to obtain the plant polysaccharide film.
9. The application of the polybasic plant polysaccharide feed liquid prepared by the preparation method of claim 1 to improving the alcoholization quality of tobacco leaves, wherein the polybasic plant polysaccharide feed liquid is added into the tobacco leaves to improve the moisture retention and moisture resistance of the tobacco leaves in the alcoholization process, and the added polybasic plant polysaccharide feed liquid accounts for 3-8% of the mass of the tobacco leaves.
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| CN104987542A (en) * | 2015-07-31 | 2015-10-21 | 云南中烟工业有限责任公司 | Preparation method and application of ternary blend polysaccharide containing polysaccharide of enteromorpha, fucoidan and carboxymethyl chitosan |
| CN110283660A (en) * | 2019-06-28 | 2019-09-27 | 云南中烟工业有限责任公司 | A kind of preparation method and application of microwave-assisted tobacco humectant |
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