Flavoring capsule and preparation and application thereof
A technology of flavoring capsules and capsules, which is applied in the tobacco industry, can solve the problems of narrow application range and complicated preparation methods, and achieve the effect of simple method, simple preparation and controllable size
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Embodiment 1
[0078] Weigh 12 g of polyvinyl alcohol and dissolve it in 400 mL of deionized water at 80°C to obtain a polyvinyl alcohol solution.
[0079] Weigh 3 g of polylactic acid particles and dissolve in 30 mL of methylene chloride to obtain a polylactic acid solution.
[0080] The polylactic acid solution and the maltol aqueous solution (with a maltol concentration of 1% mass fraction) were respectively put into syringes, placed on two syringe pumps, connected to the coaxial double-needle reactor, and the flow rates of the two syringe pumps were 5mL / h (maltol aqueous solution), 8mL / h (polylactic acid solution), drop into the polyvinyl alcohol solution, mechanically stir for 6h, the stirring speed is 250r / min, the product is vacuum filtered, washed with deionized water, and then collected , The polylactic acid flavored capsule is obtained. The particle size of the capsule is 3mm.
Embodiment 2
[0082] Weigh 12 g of polyvinyl alcohol and dissolve it in 400 mL of deionized water at 80°C to obtain a polyvinyl alcohol solution.
[0083] Weigh 3.6 g of polylactic acid particles and dissolve them in 30 mL of dichloromethane to obtain a polylactic acid solution.
[0084] Put the polylactic acid solution and deionized water into the syringes, put them on two syringe pumps, connect the coaxial double-needle reactor, and the flow rates of the two syringe pumps are 5mL / h (deionized water) and 8mL / h respectively (Polylactic acid solution), drop into the polyvinyl alcohol solution, mechanically stir for 6h, the stirring speed is 250r / min, the product is suction filtered under reduced pressure, washed with deionized water, and then collected to obtain a water-in-polylactic acid capsule. The measured particle size of the water-in-capsule is 3.2mm (see image 3 -a). The average water content of the capsule is 25.1 mg (water accounts for 73% by weight of the capsule weight), and the wat...
Embodiment 3
[0086] Weigh 12 g of polyvinyl alcohol and dissolve it in 400 mL of deionized water at 80°C to obtain a polyvinyl alcohol solution.
[0087] Weigh 4.5 g of polylactic acid particles and dissolve them in 30 mL of dichloromethane to obtain a polylactic acid solution.
[0088] Put the polylactic acid solution and deionized water into the syringes, put them on two syringe pumps, connect the coaxial double-needle reactor, and the flow rates of the two syringe pumps are 5mL / h (deionized water) and 8mL / h respectively (Polylactic acid solution), drop into the polyvinyl alcohol solution, mechanically stir for 6h, the stirring speed is 250r / min, the product is suction filtered under reduced pressure, washed with deionized water, and then collected to obtain a water-in-polylactic acid capsule. The particle size of the water-in-capsule is about 4mm (see image 3 -b), the average water content of the capsule is 35.3 mg (water accounts for 63% of the weight of the capsule).
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