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In order to investigate the heat release law and difference of tobacco slices in heated tobacco product prepared by different processes, the thermal weight loss behavior in different atmospheres of three kinds of tobacco slices in heated tobacco product prepared by thick pulp method, papermaking powder spraying method and paper making method were studied by thermogravimetric analysis. The results showed that: the thermal weight loss behavior of the three kinds of tobacco slices were the same. They all experienced multiple weight loss stages such as water distillation, material volatilization and cracking in air and nitrogen atmosphere. When the heating temperature reached 370 °C, the effective release of tobacco slice components could be realized. The influence of the different atmosphere on the thermogravimetric process of the tobacco slice samples mainly occurred in the heating temperature range of 240~400 °C. Air atmosphere increased the thermal weight loss rate of tobacco slices, promoted the weight loss temperature at each stage to the direction of low temperature, and was conducive to reduce the difficulty of thermal volatilization and thermal oxidation degradation of glycerol, cellulose and other substances. The structure looseness and material composition of tobacco slices prepared by different processes were different, resulting in differences in weight loss temperature region, maximum weight loss rate temperature and mass loss during heating process. Loose tissue structure and high exogenous components could accelerate the rate of thermal weight loss and increase the mass loss of samples. [ABSTRACT FROM AUTHOR]

The characteristics and development process of white-rot fungi are introduced, and the present status of wastewater produced in various typical industries are expounded. White-rot fungi are increasingly used in bioremediation due to their unique and efficient lignin-degrading ability. The degradation mechanisms of organic pollutants by white-rot fungi are introduced in detail. The treatment for certain typical industrial wastewaters by white-rot fungi are reviewed, which contained printing and dyeing, papermaking, pesticide, and medical wastewater treatment. Furthermore, some problems and directions of future research in organic wastewater treatment by white-rot fungi are documented. [ABSTRACT FROM AUTHOR]

The physical and chemical methods, the principle and characteristics of the preparation process of lignin-containing nanocellulose are systematically reviewed. Combined with the research status at home and abroad in recent years, the unique properties of lignin-containing nanocellulose, such as strong mechanical properties, thermal stability, hydrophobicity, water vapor and oxygen resistance, are mainly introduced. And its composites filling agent, strengthening agent, stabilizer and packaging new development and the application in the fields of papermaking, finally expounds the lignin insufficiency and the future development direction of nano cellulose research, proposed further explore the nature of the lignin content in the lignin nanofibers and its mechanism of action, in order to expand its application field. [ABSTRACT FROM AUTHOR]