纤维素酶降解烟叶中纤维素的作用效果

为降低烤后烟叶中的纤维素含量,改善纤维素对烟叶品质的不良影响,研究了纤维素酶的不同用量对烟叶纤维素含量、化学成分以及中性致香物质的影响。结果表明:(1)纤维素含量随外加酶量增加而减少,总糖、还原糖含量随外加酶量增加而增加。方差分析结果表明,各加酶处理的纤维素和总糖含量均和对照达到极显著水平;相关分析可得纤维素含量和总糖含量呈极显著负相关,相关系数为-0.851**。(2)纤维素酶用量为40u/g时,可以使烟叶中的中性致香物质总量提高25.52%,有利于烟叶香气质和香气量的改善。

Effect on Using Cellulase to Degradate Cellulose in Flue-cured Tobacco

In order to reduce the content of cellulose in tobacco leaves after flue-curing and change the adverse effects of cellulose on tobacco leaves,the influences of the different amount of cellulase on tobacco cellulose content,chemical components and neutral aroma components was studied.The results showed that the content of cellulose was decreasing and the content of total sugar and reducing sugar was increasing as increasing of the quantity of additional amylase.The difference of the contents of cellulose and total sugar between the treatments and checks was remarkable.There was a sigficant corre1ation between the content of cellulose and total sugar,the correlation was-0.851**.When the amount of cellulase was 40u/g,the amount of neutral aroma components of tobacco could increase 25.52%.It was propitious to improve quality of aroma and quaniity of aroma.