Study on Different Kinds of Water Distribution and Moisture Content in Tobacco by LF-NMR Technique

KeyWord:LF-NMR  tobacco  water distribution  KLK  HXD

Abstract:

      The pipe tobacco processed with different kinds of water was analysed by low field nuclear magnetic resonance£¨LF-NMR£© technique.The moisture content and changes of water distribution in the samples treated by different processes were studied in detail.The study result showed that the water species has a significant influence on the pipe tobacco processed by moisture content and its distribution.The total moisture contents of the samples treated with reverse osmosis water and magnetized water are generally 0.43% and 0.72% higher than that with tap water,respectively.The appropriate KLK processing temperature is in the range of 140-150 ¡æ£¬and the appropriate HXD processing temperature is 180-210 ¡æ.