Method for lowering content of chloridion in tobacco stems and extracting nicotine simultaneously and application of method in preparation of reconstituted tobacco

Abstract

Disclosed are a method for lowering the content of chloridion in tobacco stems and extracting nicotine simultaneously and the application of the method in preparation of reconstituted tobacco. The method includes: adding the tobacco stems into an extracting tank, adding 2-5 times of ethanol of 40%-80% according to a weight ratio, stirring and extracting for 10-20 minutes under the condition of 30-60 DEG C prior to filtering, and separating to obtain primary extracting solution and a primary solid portion; concentrating the primary extracting solution to obtain primary extractum, adjusting the pH value of the primary extractum to be 8-10, extracting with solvent dichloromethane to obtain coarse nicotine, and adding organic acid to adjust the pH value to be 3-5 to obtain organic acid nicotine; extracting the primary solid portion with water of 50-70 DEG C for 15-30 minutes prior to filtering, and separating to obtain secondary extracting solution and a secondary solid portion with the content of chloridion lowered, namely low chloridion tobacco stems; concentrating the secondary extracting solution to obtain secondary extractum; and subjecting the secondary solid portion to the paper-making process reconstituted tobacco production process to obtain a base. By the method, the content of chloridion in the expansion cut stems can be effectively lowered while nicotine generated during the process of lowering of the content of chloridion can be effectively extracted and recovered, and the obtained low-chloridion tobacco stems and nicotine can be used in reconstituted tobacco production to obtain reconstituted tobacco low in chloridion content.

Description

technical field [0001] The invention belongs to the technical field of tobacco preparation, and specifically relates to a method for extracting and removing chloride ions in tobacco stems by using ethanol solution as a solvent, and simultaneously extracting and enriching nicotine in the extract. The invention also relates to the application of low-chloride ion tobacco stems and nicotine in the preparation of reconstituted tobacco leaves. Background technique [0002] Tobacco stems are generally used as raw materials in reconstituted tobacco leaves and expanded cut stems. With the increase in the amount of reconstituted tobacco leaves and expanded cut stems in cigarette formulations, the industry's requirements for the limitation of chloride ion content in formulations are getting higher and higher. However, the content of chloride ions in the tobacco stems in the current raw material formula is too high, generally not less than 2.5%, which will bring many problems. First, a...

AI Technical Summary

Problems solved by technology

However, the first-stage extract contains a large amount of nicotine, which will increase the load of sewage treatment and lead to the loss of active ingredients, which is not conducive to improving the quality of the product.