Preparation device and preparation method of essence and flavor powder
A technology of flavors and fragrances and powders, which is applied in the direction of essential oils/fragrances, fat production, etc., and can solve problems such as organic solvent residues, high operating temperature, heat sensitivity, unstable biologically active substances, etc.
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[0027] The preparation method of flavor and fragrance powder of the present invention, its steps are as follows:
[0028] Step 1: Put liquid flavor and fragrance or gas flavor and fragrance into the liquid tank or gas tank.
[0029] If the flavors and fragrances in the above step 1 are solid or solids containing flavors and fragrances (such as natural materials containing flavors and fragrances), they are put into the extraction kettle, and the flavors and fragrances kettle is added with entraining agent according to the actual situation. The entraining agent is generally a polar organic solvent, such as water, ethanol, acetone, etc., and the mass percentage of the added amount is 0.1-20% of the supercritical fluid amount.
[0030] If the essence and fragrance in the above step 1 is gas, the essence and fragrance are directly passed into the extraction kettle.
[0031]Step 2: Start the supercritical fluid generating device to form supercritical fluid or gas, and enter the ext...
Embodiment 1
[0041] Embodiment 1: Preparation of phenylethyl alcohol / silicon dioxide powder
[0042] Phenylethyl alcohol, chemically pure, purity ≥ 98%, Sinopharm Chemical Reagent Co., Ltd.; carbon dioxide, purity ≥ 98%, Tongan Kongte Manufacturing Factory; silicon dioxide, self-made, average particle size 20 microns, specific surface area 306m 2 / g.
[0043] use figure 1 According to the flow process, the extraction kettle is not equipped with any materials at this time, and the phenethyl alcohol is pumped in with essence and fragrance. Fill the silicon dioxide powder into the kettle. The operating conditions are: extraction pressure 15MPa, extraction temperature 60°C, implantation pressure 15MPa, implantation temperature 60°C, recovery kettle temperature at normal temperature, recovery kettle pressure about 5MPa, carbon dioxide flow rate about 2NL / min, phenylethanol pump flow rate 2 . The controlled release profile of the product is as follows figure 2 , the figure shows that> 80% o...
Embodiment 2
[0044] Embodiment 2: the preparation of menthol / silica powder
[0045] Menthol, chemically pure, provided by Shanghai Chemical Reagent Purchasing and Supply Station (block); carbon dioxide, purity ≥ 98%, Tongan Kongte Manufacturing Factory; silicon dioxide, self-made, with an average particle size of about 20 microns and a specific surface area of 336m 2 / g.
[0046] use figure 1 At this time, the extraction tank is filled with menthol, and the liquid pump and liquid tank are not used. Fill the silicon dioxide powder into the kettle. The operating conditions are: extraction pressure 10MPa, extraction temperature 40°C, implantation pressure 10MPa, implantation temperature 40°C, recovery kettle temperature normal temperature, recovery kettle pressure about 5MPa, carbon dioxide flow rate about 2NL / min, and running time about 10h. The average content of menthol in the final product menthol / silica powder is: 1.4g / gSiO 2 . The controlled release profile of the product is as f...
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Abstract
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