Preparation method and application of modified Al2O3/perfume composite material with controllable slow release performance
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A technology of composite materials and slow-release performance, applied in the fields of application, food science, tobacco, etc., can solve the problems of low release rate and slow release rate, and achieve the effects of controllable slow-release performance, simple method, and easy popularization and application
Active Publication Date: 2022-05-27
CHINA TOBACCO YUNNAN IND
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[0003] At present, researchers are focusing on the slow-release effect. The slower the release rate, the better. No adsorption materials with controllable release rate have been improved. During the process, the release rate is low, and the fragrance is hardly released, but in the normal smoking process, the release rate should be increased to a certain extent
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Embodiment 1
[0035] (1) Tobacco stems were soaked in 6% HCL.
[0036] (2) Gradient dehydration of (1) with absolute ethanol.
[0037] (3) Weighing 37.5% of hydrated aluminum nitrate is dissolved in deionized water, heated and stirred to a transparent state solution.
[0038] (4) Use 2moL / L of ammonia water to titrate (3), and continue stirring, stop the titration when the pH reaches 8.5, and continue stirring for 2h at the same time.
[0039] (5) Soak (2) in (4) for 50h.
[0040] (6) (5) was filtered, and the precipitate was taken and dried naturally at room temperature.
[0041] (7) The dried (6) was further dried in a 90° C. oven for 30 hours.
[0042](8) The dried (7) is placed in a muffle furnace for calcination, and the calcination temperature is 550°C.
[0043] (9) Al is obtained after calcination 2 O 3 Modified material.
[0044] (10) Weigh 0.4% ethyl maltol, add 100g Al 2 O 3 The modified material was placed on a magnetic stirrer and stirred for 4 hours, and centrifuged to...
Embodiment 2
[0048] TiO was prepared by the method of implementation 1 2 Modified material, the remaining steps are the same as in Example 1.
[0049] Determination of Modified TiO 2 / Ethyl maltol composite material on flavor loading, the results are shown in Table 1.
Embodiment 3
[0051] SiO was prepared by the method of implementation 1 2 Modified material, the remaining steps are the same as in Example 1.
[0052] Determination of modified SiO 2 / Ethyl maltol composite material on flavor loading, the results are shown in Table 1.
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Abstract
The invention discloses a modified Al2O3 / spice composite material capable of regulating and controlling slow release performance and application of the composite material in tobaccos, according to the Al2O3 modified material prepared through the method, tobacco stems with low utilization value in tobacco raw materials serve as a base plate, the base plate is combined with preparation of the Al2O3 modified material, and the application of the tobacco stems is greatly widened. According to the invention, the release rate of the perfume in the adsorption material / perfume composite material is controlled by controlling the temperature for the first time, and furthermore, the invention finds the adsorption material with excellent perfume storage capability and controllable slow release performance. When the prepared modified Al2O3 / spice composite material is applied to cigarettes, the smoking quality of the cigarettes can be effectively improved, and the aroma characteristic, the smoke characteristic and the taste characteristic of the cigarettes are obviously improved.
Description
technical field [0001] The invention belongs to the application field of the tobacco industry, and in particular relates to a modified Al with adjustable slow-release performance 2 O 3 / Preparation method of flavor composite material and application in tobacco. Background technique [0002] By using a certain method to treat the target substance or relying on some special properties of the matrix material, the target substance can be released slowly and controllably. With the increase in demand, slow and controlled release technology has also begun to be applied in the field of flavors and fragrances. In the field of cigarette manufacturing, the aroma of cigarettes and the release of aroma during smoking are important factors in evaluating the quality of cigarettes. The aroma substances are adsorbed on some specific adsorption materials and applied in the cigarette manufacturing process, in order to achieve the purpose of storing slow-release aromas, ensuring the quality...
Claims
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