Preparation method of gamma-valerolactone spice and application method in cigarettes
A technology of valerolactone and spices, which is applied in the preparation of γ-valerolactone spices and its application in cigarettes, which can solve the problems of hidden dangers of explosion, large hydrogen consumption, and low safety, so as to improve the quality of cigarettes, The effect of improving productivity and safety of production operation process
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Embodiment 1
[0012] Take 180g of 10% NaOH solution, put it in a 1L three-necked flask, add 60g of levulinic acid, then add 60g of 80% ethanol, and then gradually add 20g of KBH 4 , reacted for 4 hours at normal temperature and pressure; evaporated ethanol under reduced pressure; Concentrate at 50°C with a vacuum of -0.05~-0.08MPa to obtain the product with a yield of 60%. The product was applied to the leaf group in an amount of 0.005‰ for sensory evaluation, and the results showed that the product can significantly improve the fullness, roundness and fluency of the aroma, and improve the quality of cigarettes.
Embodiment 2
[0014] Take 140g of 20% NaOH solution, put it in a 1L three-necked flask, add 60g of levulinic acid, then add 100g of 85% ethanol, and then gradually add 30g of KBH 4 , reacted under normal temperature and pressure for 3 hours; evaporated ethanol under reduced pressure; Concentrate at 50°C with a vacuum of -0.05~-0.08MPa to obtain the product with a yield of 72%. The product was applied to the leaf group at an amount of 0.008‰ for sensory evaluation. The results showed that the product can significantly increase the aroma of the cigarette, improve the fullness, roundness and fluency of the aroma, and improve the quality of the cigarette.
Embodiment 3
[0016] Take 120g of 30% NaOH solution, put it in a 1L three-necked flask, add 60g of levulinic acid, then add 120g of 90% ethanol, and then gradually add 40g of KBH 4 , reacted at normal temperature and pressure for 5 hours; evaporated ethanol under reduced pressure; the mother liquor was neutralized to pH=2 with dilute sulfuric acid, then extracted 3 times with ethyl acetate, each 100ml, dried over anhydrous sodium sulfate, left standing overnight, in The temperature is 40-50°C, the vacuum degree is -0.05~-0.08MPa and concentrated to obtain the product with a yield of 80%. Apply this product to the leaf group in an amount of 0.013‰ for sensory evaluation. This product can obviously increase and coordinate the smoke aroma, increase the fullness, roundness, and fluency of the smoke aroma, and can also increase the flavor of the smoke aroma. Fresh and sweet flavor; improve the quality of cigarettes.
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