Three-step preparation method of vanillic spices for tobacco
A vanilla and three-stage technology is applied in the field of preparation of tobacco flavors, and can solve the problems of low yield of total extracts, inability to comprehensively utilize effective aroma components, inconvenience in processing and processing crude extracts, and the like. It is easy to popularize and apply, the process is simple and easy, and the equipment is simple.
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Embodiment 1
[0013] According to the following steps, the vanilla spice product is prepared in three stages:
[0014] ①Weigh 500g of vanilla beans, cut them into small pieces of about 1-2cm, add 2000g of petroleum ether, and reflux extraction for 3 times, each time for 3 hours;
[0015] ②After drying the vanilla beans extracted with petroleum ether in the first paragraph to remove residual petroleum ether, add 2500g of 70% ethanol each time, and reflux extraction twice, each time for 3 hours;
[0016] ③ Add 3000g of water to the vanilla beans extracted with 70% ethanol in the second paragraph, and reflux extraction twice for 1 hour each time. Combine the extracts and concentrate them under the conditions of 65-70°C and 0.06MP , concentrated to 450g; the water extract was redissolved with 1350g of 70% ethanol, and the returned solution was frozen below -15°C for 10 hours before suction filtration, and the filtrate was concentrated under reduced pressure to obtain the vanilla fragrance produ...
Embodiment 2
[0018] According to the following steps, the vanilla spice product is prepared in three stages:
[0019] ① Weigh 500g of vanilla beans, cut them into small pieces of 1-2cm, add 3000g of ethyl acetate, and reflux extraction for 3 times, each time for 2 hours;
[0020] 2. After the above-mentioned vanilla beans extracted with ethyl acetate are dried to remove residual ethyl acetate, add 70% propylene glycol of 3500g each time, and reflux extraction twice, each time for 3 hours;
[0021] ③ Add 2000g of water to the vanilla beans after the above-mentioned 70% propylene glycol extraction, reflux and extract twice, each time for 1 hour, concentrate the extract under reduced pressure to 450g, then redissolve with 1350g of 70% ethanol, return to The solution was frozen at -18° C. for 15 hours and then subjected to suction filtration, and the filtrate was concentrated under reduced pressure to obtain the vanilla flavor product.
Embodiment 3
[0023] According to the following steps, the vanilla spice product is prepared in three stages:
[0024] ①Weigh 500g of vanilla beans, cut them into small pieces of 1-2cm, add 2500g of n-butanol, and reflux extraction for 3 times, each time for 2 hours;
[0025] ② After drying the vanilla beans extracted with n-butanol to remove residual n-butanol, add 3000 g of 95% ethanol each time, and reflux extraction twice, each time for 2 hours;
[0026] ③ Add 3000g of water and ethanol mixture to the vanilla beans extracted with 95% ethanol each time, and reflux extraction twice, each time for 2 hours, the extract is concentrated under reduced pressure to 450g and then redissolved with 1800g of 95% ethanol , the solution was frozen below -10°C for 24 hours and then subjected to suction filtration, and the filtrate was concentrated under reduced pressure to obtain the vanilla flavor product.
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