摘要
为提高晒黄烟外观质量,以湖南宁乡晒黄烟全晒方法为对照,在全晒过程中分别引入捂晒、烤晒的方法,研究了调制过程中叶绿素a、叶绿素b和脂氧合酶(LOX)活性的变化。结果表明:烤晒可以提高LOX的活性峰值,捂晒可以有效延长LOX作用时间。叶绿素a含量、叶绿素b含量与LOX活性均呈显著负相关关系。三种调制方式叶绿素降解发生的阶段不同,但调制结束时降解率均达到90%以上,相对而言,T1捂晒效果最好,调制结束叶绿素总量为0.05 mg·g^(-1)DW,降解率为97.73%。
Chlorophyll-a and chlorophyll-b content and the dynamic of lipoxygenase activity, which are important to sensory quality of yellow sun-cured tobacco, were studied by using different curing methods. Results indicated that flue-curing measure could increase Lipoxygenase activity and bulking measure could extend effective time of Lipoxygenase. There was a significant negative correlation between lipoxygenase activity and chlorophyll-a, chlorophyll-b content respectively. Degradation rate of chlorophyll reached up to 90%when treated with yellow sun-curing, flue-curing and bulking measures. Bulking measure was the best as chlorophyll content reached 0.05 mg？g-1DW and its degradation rate was 97.73%.
出处
《中国烟草学报》
EI
CAS
CSCD
北大核心
2015年第2期75-78,共4页
Acta Tabacaria Sinica
关键词
晒黄烟
脂氧合酶
叶绿素
yellow sun-cured tobacco
lipoxidase
chlorophyll
作者简介
刘国庆（1975-），硕士研究生，农艺师，主要从事烟叶基地建设工作，Email：nj01777@163．com
通讯作者：符云鹏（1964-），博士，副教授，主要从事烟草栽培及生理生化研究，Email：ypfu01@163．com
