Preparation method of menthol/SiO2 as tobacco flavor sustained-release material
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A technology of menthol and slow-release materials, which is applied in the fields of tobacco, processed tobacco, essential oils/spices, etc., can solve the problems of loss, moisture and mildew, etc., and achieve the effect of extending the shelf life
Inactive Publication Date: 2013-04-24
FUJIAN ZHENGSHENG INORGANIC MATERIAL
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[0003] The purpose of the present invention is to provide a spice slow-release material menthol / SiO that continuously and effectively maintains the flavor in tobacco, moisture-proof and mildew-proof 2 The preparation method solves the problem of rapid loss of spices in cigarettes due to volatilization during storage and use, and is easy to be affected by moisture and mildew, and prolongs the shelf life of cigarettes
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Embodiment 1
[0027] 1. High Pore Volume Silica Particle Size Screening
[0028] Sieve the dried 1000 g high pore volume silicon dioxide product with a sample sieve, collect the product between 20-60 mesh, and set aside.
[0029] 2. Prepare materials
[0030] Weigh 200 grams of sieved (20-60 mesh) high-porosity silica material into a loading kettle, and weigh 400 grams of menthol into the dissolution kettle.
[0031] 3. Supercritical CO 2 preparation of
[0032] Turn on the CO 2 Cylinder 1 Valve, CO 2 The gas passes through the filter 2 to remove impurities, condenses into a liquid state through the refrigerator 4, enters the storage tank 5, and then pressurizes to 13 MPa through the high-pressure liquid pump 6, and then passes through the buffer tank 8 and then through the action of the heat exchanger 9, so that the CO 2 After the temperature is controlled at 35° C. to reach a supercritical state, it enters the dissolution kettle 10 .
[0033] 4. Supercritical CO of menth...
Embodiment 2
[0038] The operation steps are the same as in Example 1, except that the high-pressure liquid pump in step 3 is pressurized to 10 MPa, the cycle dissolution and load time in step 5 are changed to 10 hours, and the others remain unchanged.
[0039] Comparison of the effects of the two embodiments
[0040] 1. Determination of load
[0041] Adopt gas chromatograph to measure the menthol load capacity of gained product, embodiment 1 and embodiment 2 result are respectively: 1.67g menthol / gSiO 2 and 1.55 g menthol / gSiO 2 .
[0042] 2. Determination of Menthol Retention Rate
[0043] The product that the present invention obtains is that the nitrogen gas of 0.01Mpa is respectively purged 120min at the temperature of 25°C, 40°C, and 90°C with a pressure of 0.01Mpa, and measures its menthol retention rate. The test results of the two examples are basically the same, being respectively: 84.3% , 66.2%, 27.6%.
[0044] It can be drawn from the above two examples that: ...
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Abstract
The invention discloses a preparation method of menthol / SiO2 as a tobacco flavor sustained-release material. The preparation method comprises the following steps of: condensing purified CO2 gas to be liquid state, controlling the CO2 temperature to 30-45 DEG C so as to reach a super-critical state through a heat exchanger after the CO2 gas is pressurized to 8-15MPa, and then entering a dissolving kettle (10); dissolving preplaced menthol in the dissolving kettle into supercritical CO2, and entering a loading kettle; adsorbing menthol through particular SiO2 loading material with high pore volume in the loading kettle, then returning the supercritical CO2 into a filter after being separated in the separating kettle, and finishing a complete cycle; and recycling the supercritical CO2 in a complete loop for 8-15 h by dissolving menthol and contacting with the loading material continuously to obtain menthol / SiO2 as the tobacco flavor sustained-release material with higher tobacco flavor capacity. The tobacco flavor sustained-release material prepared by the method greatly improves the defects that the flavor is liable to be lost, and affected with damp and mildewed in process of producing, storing and using cigarettes.
Description
technical field [0001] The invention relates to a method for manufacturing a moisture-proof and mildew-proof flavor slow-release additive for cigarettes, in particular to menthol / SiO, a tobacco flavor slow-release material 2 method of preparation. Background technique [0002] Cigarette is a widely used consumer product in daily life. Due to the cooling effect of menthol, it is a commonly used cigarette cooling additive. Adding it in an appropriate amount in cigarettes can alleviate the irritation of smoke and remove miscellaneous gases. However, due to its extreme Due to its strong volatility, the traditional method of spraying directly on the shredded tobacco cannot effectively maintain the mint flavor for a long time. Contents of the invention [0003] The purpose of the present invention is to provide a spice slow-release material menthol / SiO that continuously and effectively maintains the flavor in tobacco, moisture-proof and mildew-proof 2 The preparation method so...
Claims
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