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

Active Publication Date: 2011-09-14
云南天宏香精有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the use of heterogeneous catalyst hydrogenation method to produce γ-valerolactone needs to consume a large amount of hydrogen, and will produce a small amount of 2-methyltetrahydrofuran (easy to generate peroxides, and there is a risk of explosion)
[0004] In short, the production process of this product requires the use of expensive copper or nickel and other precious metals as catalysts, or the production process requires relatively harsh conditions such as low pressure or high pressure, resulting in high cost, poor efficiency, and low safety.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

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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PUM

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Abstract

The invention discloses a preparation method of gamma-valerolactone spice and an application method in cigarettes. The preparation method comprises the steps: using levulinate as a raw material; reacting for 3 to 5 hours at normal temperature and normal pressure in NaOH solution under the action of KBH4; decompressing for steaming out ethanol; regulating the pH of mother solution by dilute sulphuric acid; then extracting by ethyl acetate; drying by anhydrous sodium sulfate; standing over a night; decompressing; condensing; and obtaining the spice. The obtained spice is added to cigarette tobacco or tobacco groups by the dosage of 0.005% to 0.02% for smoking and commenting by sense organs. The spice increases and regulates cigarette fragrance and increases complete degree, mellow feel, fluency and sweet feel of the cigarette fragrance.

Description

technical field [0001] The invention relates to the preparation of gamma-valerolactone spice and its application method in cigarettes. technical background [0002] γ-valerolactone has a fresh fruity, medicinal, sweet aroma, and is soft and long-lasting. It can be used not only in food flavors and tobacco flavors, but also as solvents, organic synthesis intermediates, coatings and cleaning agents. At present, γ-valerolactone is widely used in industrial products, but there are very few reports on its application in cigarettes. [0003] At present, the industrial production of γ-valerolactone uses levulinic acid (biomass oxygen-containing compound) as a raw material, which is obtained by hydrogenation with a heterogeneous catalyst (Ru / C, etc.). Patent USP 5 883 266 discloses a process for the preparation of various products including 5-valerolactone from levulinic acid using a bifunctional catalyst, the first function of which is hydrogenation and the second function is ring...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C07D307/33A24B15/40
Inventor 高旭冯伟博王伟宋红平王立峰杨君
Owner 云南天宏香精有限公司
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