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Studies on Three-Stage Counter Current Extraction of Tobacco Stem and Tobacco Dust

机译：三级计数器电流提取烟草茎和烟草粉尘的研究

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Tobacco stem and tobacco dust are the major raw materials in the reconstituted tobacco production. The extraction of the components from these materials is one of the most important procedures in making the reconstituted tobacco sheet. In this paper, we reported an approach of three-stage counter current extraction to transfer the components from tobacco stem and tobacco dust. The results showed that the extraction ratios for tobacco stem and tobacco dust were 40.2% and 54.2%, respectively. The testing results on the extracted tobacco stem and tobacco dust showed that the overall extraction ratios of water soluble sugars, total alkaloid, and chloride in tobacco dust were 89.3%, 90.5% and 100%, respectively; and the overall extraction ratios of water soluble sugars, total alkaloid and chloride in tobacco stem were 59.3%, 60.3% and 76.2%, respectively; The contents of total nitrogen in tobacco dust and tobacco stem were basically no change after each extraction. Lower extraction yield and higher extraction ration were obtain by three stages extract than those by single stage extract.
机译：烟草茎和烟草粉尘是重构烟草生产中的主要原料。从这些材料中提取组分是制造重构烟草片中最重要的程序之一。在本文中，我们报告了一种三级计数器电流提取的方法，将组件从烟草杆和烟雾粉尘转移。结果表明，烟草茎和烟草粉尘的提取比分别为40.2％和54.2％。提取的烟雾茎和烟雾粉尘的测试结果表明，水溶性糖，总生物碱和烟草中氯化物的总萃取比例分别为89.3％，90.5％和100％;烟草干燥糖，总生物碱和氯化物的总体提取比分别为59.3％，60.3％和76.2％;每次提取后，烟雾粉尘和烟草茎中总氮的含量基本没有变化。通过单阶段提取物的三个阶段提取物获得较低的提取产率和更高的提取率。

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