Processing method for increasing low-grade tobacco use value

Abstract

A processing method for increasing low-grade tobacco use value includes the steps: moistening a tobacco group composed of low-grade tobacco to enable the water content to be 18-22%; storing for 1-24h, and entering a lining feeder to enable the tobacco water content to be 28-36%; using a burley tobacco curing machine to dry the tobacco under the conditions that the temperature is 70-1100 DEG C and the process flow is 1600kg/h to enable the water content of tobacco in a cooling area to be 4-7%, and entering a resurgence area to enable the tobacco water content to be 10-14%; entering a surface material feeder to enable the tobacco water content to be 18.5-21.5% after surface material feeding, storing for 1-4h, and shredding, wherein the tobacco water content is 17.5-20.5%; and drying the shredded tobacco through a sheet cut-tobacco dryer to enable the tobacco water content to be 12.5-13.5% after drying of cut tobacco. By means of the processing method, the use ratio of low-grade tobacco in third-grade and fourth-grade cigarettes can be evidently increased to be 8-20%, and cost of formula raw materials can be remarkably lowered.

Description

Technical field: [0001] The invention relates to a processing method for improving the use value of low-grade tobacco leaves. Background technique: [0002] Compared with high-grade tobacco leaves, low-grade tobacco leaves have the following obvious disadvantages: ①Currently, low-grade tobacco leaves in the industry mainly use CO 2 However, due to the thin identity of low-grade tobacco leaves and high fragment content, the whole cut rate of expanded cut tobacco is low, the utilization rate of cut tobacco is low, and the cut tobacco has obvious scorched smell; ② There are obvious defects in the sensory quality of low-grade tobacco leaves: gray color, blue Heavy miscellaneous gas, strong irritation, bitter and spicy throat, weak aroma, and unclean aftertaste; ③ From the analysis of internal chemical components, the upper low-grade tobacco leaves have high nicotine, starch and protein content, low sugar content, and poor combustibility of tobacco leaves. Low-grade tobacco leav...

AI Technical Summary

Problems solved by technology

[0002] Compared with high-grade tobacco leaves, low-grade tobacco leaves have the following obvious disadvantages: ①Currently, low-grade tobacco leaves in the industry mainly use CO 2 However, due to the thin identity of low-grade tobacco leaves and high fragment content, the whole cut rate of expanded cut tobacco is low, the utilization rate of cut tobacco is low, and the cut tobacco has obvious scorched smell; ② There are obvious defects in the sensory quality of low-grade tobacco leaves: gray color, blue Heavy miscellaneous gas, strong irritation, bitter and spicy throat, weak aroma, and unclean aftertaste; ③ From the analysis of internal chemical components, the upper low-grade tobacco leaves have high nicotine, starch and protein content, low sugar content, and poor combustibility of tobacco leaves. Low-grade tobacco leaves have low nicotine, starch and protein content, high sugar content, and uncoordinated sugar-base ratio

[0008] The above data show that low-grade tobacco leaves have lower sugar and nicotine contents, higher protein and starch contents, and CO 2 After expansion, the sugar content decreased by 7.8%, and other conventional components changed little; 2 After expansion, due to the occurrence of partial caramelization reaction, the content of furan compounds slightly increases, while the content of volatile aroma components decreases, resulting in poor aroma quality of expanded silk, less aroma, large miscellaneous gas, obvious dryness of smoke, and strong irritation

[0009] At the same time, this low-level tobacco leaf group was subjected to CO 2 After expansion, the whole shred rate was 55.7%, and the shredded shred rate was 7.9%. The proportion of cigarettes used in the second and third categories

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