Threshing and redrying pretreatment method for maintaining characteristic aroma of strong-flavor tobacco leaves

Abstract

The invention discloses a threshing and redrying pretreatment method for keeping characteristic aroma of strong-flavor tobacco leaves. The method comprises the following steps: carrying out pre-moisture-regaining treatment on the tobacco leaves in a moisture room by adopting an ultrasonic humidifier; after the pre-moisture-regaining is finished, manually selecting leaves; and after manual leaf selection is finished, the tobacco leaves are subjected to moisture regaining treatment in the moisture room. According to the threshing and redrying pretreatment method for keeping the characteristic aroma of the strong-flavor tobacco leaves, the low temperature and the high humidity are guaranteed, and the characteristic aroma substances of the strong-flavor tobacco leaves can be effectively kept; the ultrasonic humidifier is adopted for pre-moisture-regaining treatment, the tobacco leaves can be evenly humidified, and tobacco leaf breakage in the follow-up link is reduced; after the moisture content of the tobacco leaves is increased, the subsequent high-strength moisture regaining link is canceled, and energy is effectively saved.

Description

technical field [0001] The invention relates to the technical field of raw material processing of tobacco leaves, in particular to a pre-treatment method for threshing and redrying that maintains the characteristic aroma of Luzhou-flavor tobacco leaves. Background technique [0002] Tobacco leaf raw materials are the foundation of the cigarette industry, and Luzhou-flavor tobacco leaves have the characteristics of rich and fragrant aroma, mellow and rich taste, good aroma quality, sufficient aroma, full smoke, compatibility, and outstanding burnt-sweet aroma. The favor of cigarette industry enterprises has gradually played an important role in the construction of high-end cigarette brands. However, when tobacco leaves undergo threshing and re-baking, they need to go through high-temperature steps such as hot air moistening and threshing and re-baking. Part of the aroma components of tobacco leaves will be lost, resulting in a decline in the quality of raw materials for Luzho...

AI Technical Summary

Problems solved by technology

However, when tobacco leaves undergo threshing and re-baking, they need to go through high-temperature steps such as hot air moistening and threshing and re-baking. Part of the aroma components of tobacco leaves will be lost, resulting in a decline in the quality of raw materials for Luzhou-flavor tobacco leaves, and the value of raw materials cannot be achieved. Therefore, it is particularly important to study how to maintain the characteristic aroma of Luzhou-flavor tobacco leaves after threshing and re-baking

[0003] At present, the pre-treatment of threshing and redrying includes unpacking, loosening, impurity removal, and leaf selection. There is no humidification link. When the moisture content of the tobacco leaves is low, it is easy to cause cracks. The moisture content of the tobacco leaves is mainly increased through subsequent vacuum rehydration, leaf moistening, etc. The high-intensity process will lead to the loss of aroma substances in tobacco leaves and the decline of sensory quality while increasing the moisture content, which will have a great negative impact on the quality of later-stage tobacco.

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