烟草科技2016，Vol.49Issue(6)：36-44,9.DOI:10.16135/j.issn1002-0861.20160606
不同溶剂提取后烟梗和碎烟片表面结构及提取物成分的变化
Variations of surface microstructure and extract composition of tobacco stems and scraps extracted by different solvents
摘要
Abstract
In order to investigate the variations of surface microstructure and extract composition of tobacco stems and scraps extracted by different solvents, the influence of solvent types on the leaf surface properties and extract aroma components were compared by taking water, ethanol water solution and potassium carbonate solution as the extraction media. The results showed that: 1) The extraction ratios of water and ethanol water solution did not differ significantly, and the appearance of extracted stems and scraps did not change significantly. However, the extraction ratio of potassium carbonate solution was lower, the extracted stems and scraps became dark black, deformed and stuck together. 2) After water extraction, the tissue structure of stems became microporous with obvious pores; the collenchyma of stems became poriferous, the vessel structure of stems was partially detached and deformed after extraction with ethanol water solution. More vessels were damaged and the volume reduced after extraction with potassium carbonate solution. After water or ethanolwater solution extraction, there were many small wrinkles in the surface of scraps, the microscopic variation was obvious. The surface of scraps extracted by potassium carbonate solution changed somewhat, there was only a few uplifts, the reduction of filler was small, and the difference with the original scraps was not obvious. 3) The main extract components of stems and scraps in different solutions were nicotine. Extraction with ethanol water solution was found benefit for the extraction of aroma components, alcohols and ketones, while potassium carbonate solution reacted with lignin which resulted in the discoloration and staleness of material, therefore it was not a suitable extraction process, despite the fact that it promoted the dissolution of a large amount of anatabine.关键词
烟梗/碎烟片/再造烟叶/表面结构/致香成分/碳酸钾Key words
Tobacco stem/Tobacco scrap/Reconstituted tobacco/Surface structure/Aroma component/Potassium carbonate分类
轻工纺织引用本文复制引用
侯轶,胡亚成,李友明,周小松,胡松青..不同溶剂提取后烟梗和碎烟片表面结构及提取物成分的变化[J].烟草科技,2016,49(6):36-44,9.基金项目
制浆造纸工程国家重点实验室自主研究项目“碱性离子液体介质对木质素分子可及性的影响”（2015C02）；国家自然科学基金项目“生物质中木质素与纤维素在离子液体中的有效分离及其活性结构损失评析”（21206046）。 （）
