JOURNAL OF LIGHT INDUSTRY

CN 41-1437/TS  ISSN 2096-1553

Volume 32 Issue 1
January 2017
Article Contents
ZHANG Jun-song, LI Hao, HUO Xian-kuan, et al. Study on the moisture sorption isotherm and net isosteric heat of sorption of tobacco[J]. Journal of Light Industry, 2017, 32(1): 28-34. doi: 10.3969/j.issn.2096-1553.2017.1.005
Citation: ZHANG Jun-song, LI Hao, HUO Xian-kuan, et al. Study on the moisture sorption isotherm and net isosteric heat of sorption of tobacco[J]. Journal of Light Industry, 2017, 32(1): 28-34. doi: 10.3969/j.issn.2096-1553.2017.1.005 shu

Study on the moisture sorption isotherm and net isosteric heat of sorption of tobacco

  • Received Date: 2016-06-23
    Available Online: 2017-01-15
  • The change regularity of heat in adsorption and desorption process of tobacco was investigated,flue-cured tobacco,tobacco sheet,expanded stem,burley tobacco,oriental tobacco as the research objects.With equilibrium water content and water activity with different relative humidity were determined by static sulfuric acid method.The moisture sorption isotherms of tobacco,the water content of the single molecule layer and net isosteric heat of sorption were studied.Results indicated that:1) GAB isotherm model was the tobacco optimal moisture sorption isotherms; 2) The variation range of single molecular layer water in tobacco samples was 0.046~0.103 g/g; 3) The net isosteric heat of sorption decreased with the increase of water content.Under the normal water content conditions,burley tobacco,oriental tobacco,flue-cured tobacco,tobacco sheet,expanded stem required for moisture evaporation energy were in descending order.
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