不同晒晾烟品种西柏烷二萜醇的研究
Study on Cembrenediol Content in Different Cultivars of Sun-cured Tobacco
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摘要: 为客观评价不同晒晾烟品种的西柏烷二萜醇含量,采用气质联用法对6个不同地区11个晒晾烟品种的西柏烷二萜醇含量进行了检测与分析。结果表明:(1)不同品种之间的西柏烷二萜醇含量大小顺序为枇杷叶> 杨梅烟> 黑烟> 寸三皮> 麻阳红> 小柳叶> 烤烟> 二黑烟> 马耳烟> K16> 黑老> 公会晒烟,并通过聚类分析将11个晒晾烟品种分成了高含量、中含量和低含量三类。(2)不同类型晒晾烟的西柏烷二萜醇含量大小顺序为浅晒红烟> 晒红烟> 深晒红烟> 晒黄烟。(3)不同部位之间,除马耳烟外,其余品种西柏烷二萜醇含量均表现为中部叶大于上部叶。(4)通过线性相关分析发现,α-2,7,11-西柏三烯-4,6-二醇与β-2,7,11-西柏三烯-4,6-二醇的含量存在一定的线性相关性,决定系数(R2)为0.9576。Abstract: To evaluate the content of cembrenediol in various sun-cured cultivars, 11 sun-cured cultivars from 6 regions were analyzed by GC-MS. The results showed that: (1) the order of cembrenediol content in different cultivars of sun-cured tobacco was: Pipaye> Yangmei> Heiyan> Cunsanpi> Mayanghong> Xiaoliuye> K326> Erhei> Maer> K16> Heilao> Gonghui, and the 11 cultivars were clustered into three groups based on cembrenediol content; (2) the order of cembrenediol content in different types of sun-cured tobacco was: light red sun-cured tobacco > red sun-cured tobacco > dark red sun-cured tobacco > yellow sun-cured tobacco; (3) Except Maer, cembrenediol content in middle leaves was higher than that in upper leaves; (4) Correlation analysis showed that there was a linear correlation between α-2,7,11-cembtratriene-4,6-diol and β-2,7,11- cembtratriene-4,6-diol, with a correlation coefficient of 0.9576. The results from this study could be used in evaluating quality of different sun-cured tobacco cultivars.