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Copyright of Journal of Food Safety & Quality is the property of Journal of Food Safety & Quality Editorial Department and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Shipin Kexue/ Food Science is the property of Food Science Editorial Department and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Using Ganoderma as raw material, one kind of Ganogerma lucidem polysaccharide ( abbreviated GLP) was extracted and the carboxymethyl product( CM-GLP) was prepared. Using the carboxymethylated degree of substitution ( DS) as an indicator, the carboxymethyl modification conditions of GLP were optimized by using the orthogonal test. Using blank tobacco shred as control and the moisture content of tobacco shred as an indicator , the physical moisture retention properties of CM-GLP , GLP , propylene glycol(PG) and glycerol were measured , and the effects of these two samples and two traditional humectants on the sensory comfort levels in cigarettes were investigated. The results showed that： 1 ) the optimum technological condition was 85 g of chloroacetic acid, 4. 5 mol/L, of NaOH solution concentration, 60 °C of reaction temperature , and 2 h of reaction time, and the mean value of DS under this condition was 1.36; 2 ) under low humidity conditions the moisture retention property of CM-GLP was superior to PG and glycerol, and the moisture retention property of GLP was slightly worse than PG, under high humidity conditions, four differｅｎｃｅ ｗａｓ ｎｏｔ ｏｂｖｉｏｕｓ； ３） ＣＭ-ＧＬＰ ｐｏｓｓｅｓｓｅｓ ｔｈｅ ｒｏｌｅｓ ｏｆ ｍａｋｉｎｇ ｃｉｇａｒｅｔｔｅ ｓｍｏｋｅ ｍｅｌｌｏｗ ａｎｄ ｆｕｌｌ, ｒｅｄｕｃｉｎｇ ｉｒｒｉｔａｔｉｏｎ ａｎｄ ｅｌｅｖａｔｉｎｇ ｃｏｍｆｏｒｔａｂｌｅ ｍｏｕｔｈｆｅｅｌ． [ABSTRACT FROM AUTHOR]