Processing method of high-grade tobacco expansion shreds

Abstract

The invention discloses a processing method of high-grade tobacco expansion shreds. The method comprises the following steps of A, dampening cut tobacco shreds through a CO2 expansion line until the moisture content is 20 to 25 percent; B, dipping the cut tobacco shreds in a CO2 dipping tank, wherein the dipping time is 10 to 80 seconds, the CO2 draining time is 120 to 350 seconds, and the CO2 content in the dipped tobacco shreds is 2 to 6 percent; C, drying and expanding the tobacco shreds in a fluidized bed, wherein the process flow rate of the fluidized bed is 2,500kg / h, the temperature of the first area is 100 to 1,400 DEG C, the temperature of the second area and the third area is normal temperature, the steam flow is 600 to 900kg / h, and the moisture content of the dried and expanded tobacco shreds is 12.5 to 13.0 percent; and D, adding a characteristic aroma into the shreds by using an aroma adding machine. The expansion shreds manufactured by the process are relatively good in color and luster, lemon yellow and high in expansion shred finishing rate, the fill value is slightly lower than that of the expansion shreds manufactured in the prior art, the internal quality is obviously improved, and volatile and semi-volatile aromatic component loss is low.

Description

Technical field: [0001] The invention relates to a processing method for high-grade tobacco expanded shreds. Background technique: [0002] Compared with shredded tobacco, expanded shredded tobacco has the following obvious advantages: ①Reduce the amount of tar released from cigarettes and improve smoking safety. Due to the loose tissue and high air permeability of the expanded cut tobacco, the shredded tobacco burns more completely; moreover, after the expanded cut tobacco is mixed, the content of the shredded tobacco is reduced, which greatly reduces the release of tar. Experimental data show that when 10% of expanded cut tobacco is blended in cigarettes, the tar release can be reduced by 8%-15%; ②Increase the filling capacity of shredded tobacco and reduce the consumption of tobacco leaves, thereby reducing the cost of cigarettes. It is determined that mixing 10% expanded shredded tobacco in cigarettes can reduce the amount of shredded tobacco by more than 7% compared wi...

AI Technical Summary

Problems solved by technology

[0008] The above data show that the content of sugar and nicotine in traditional expanded silk is low; the content of volatile and semi-volatile aroma components in traditional expanded silk is low; resulting in poor aroma, low aroma, large miscellaneous gas, and dry smoke Sensation is obvious and irritating

The reason for the above results is that the traditional CO 2 When the expanded silk is produced, the cut tobacco is subjected to CO 2 After impregnation, use high temperature (250 ~ 350 0 C) Sublimation and expansion, large loss of volatile and semi-volatile aroma components in shredded tobacco, high degree of crushing of shredded tobacco, low shred rate, strong dry feeling, and poor internal quality, which affect the proportion of its use in the formula

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