Preparation method for pyrolysis-oxidized starchiness cigarette humectant and application thereof
A humectant and oxidized starch technology for tobacco, which is applied in the field of cigarettes, can solve the problems of high cost, few sources of raw materials, and complicated preparation process, and achieve the effects of improving processing resistance, reducing tobacco leaf consumption, and having a wide range of sources
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Embodiment 1
[0020] Example 1. Weigh 350g of corn starch, add 5g of 65% concentrated nitric acid dropwise, stir and mix evenly, put it into a self-made dry reactor, react at 120°C for 4 hours, and neutralize it with 10% sodium hydroxide ethanol aqueous solution after cooling , and then dried, crushed and sieved to obtain pyrolytic dextrin. Add pyrolytic dextrin to ethanol / water (V / V=60:40) solution to make 35% starch milk, then use 5% sodium hydroxide aqueous solution to adjust the pH value to 8-10, at 1-2 Add 20g sodium hypochlorite within 1 hour, and react at 50°C for 7 hours. During the reaction, continuously add 5% aqueous sodium hydroxide solution dropwise to stabilize the pH value at 8-10. After the reaction, use 20% hydrochloric acid ethanol / The aqueous solution is neutralized to neutral, and excess sodium hypochlorite is reduced with sodium sulfite, and finally dehydration, washing, drying, crushing and sieving are carried out respectively to obtain pyrolysis-oxidized starch. T...
Embodiment 2
[0021] Example 2. Weigh 350g of cornstarch, add 10g of 65% concentrated nitric acid dropwise, stir and mix evenly, put it into a self-made dry reactor, react at 130°C for 6 hours, cool it with 10% sodium hydroxide ethanol aqueous solution Neutralized, then dried, pulverized and sieved to obtain pyrolytic dextrin. Add pyrolytic dextrin to ethanol / water (V / V=60:40) solution to make 35% starch milk, then use 5% sodium hydroxide aqueous solution to adjust the pH value to 8-10, at 1-2 Add 22g of sodium hypochlorite within 1 hour, and react for 7 hours at 50°C. During the reaction, continuously add 5% aqueous sodium hydroxide solution dropwise to stabilize the pH value at 8-10. The aqueous solution is neutralized to neutral, and excess sodium hypochlorite is reduced with sodium sulfite, and finally dehydration, washing, drying, crushing and sieving are carried out respectively to obtain pyrolysis-oxidized starch. The pyrolyzed-oxidized starch is dissolved in water to form a 40% aq...
Embodiment 3
[0022] Example 3. Weigh 350g of barley starch, add 15g of concentrated sulfuric acid dropwise, stir and mix evenly, put it into a self-made dry reactor, react at 140°C for 8 hours, and neutralize it with 10% sodium hydroxide ethanol aqueous solution after cooling , and then dried, crushed and sieved to obtain pyrolytic dextrin. Add pyrolytic dextrin to ethanol / water (V / V=70:30) solution to make 35% starch milk, then use 5% sodium hydroxide aqueous solution to adjust the pH value to 8-10, at 1-2 Add 55g of sodium hypochlorite within 1 hour, and react at 50°C for 8 hours. During the reaction, continuously add 5% aqueous sodium hydroxide solution dropwise to stabilize the pH value at 8-10. After the reaction, use 20% hydrochloric acid ethanol / The aqueous solution is neutralized to neutral, and excess sodium hypochlorite is reduced with sodium sulfite, and finally dehydration, washing, drying, crushing and sieving are carried out respectively to obtain pyrolysis-oxidized starch....
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