| 烤烟陈化过程中挥发性、半挥发性脂肪酸和pH的变化研究 |
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| 引用本文： | 李炎强,胡有持,宗永立,吴拥军,屈凌波,相秉仁.烤烟陈化过程中挥发性、半挥发性脂肪酸和pH的变化研究[J].香料香精化妆品,2004(3):21-24. |
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| 作者姓名： | 李炎强 胡有持 宗永立 吴拥军 屈凌波 相秉仁 |
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| 作者单位： | 中国药科大学，中国烟草总公司郑州烟草研究院，中国烟草总公司郑州烟草研究院，郑州大学，郑州大学，中国药科大学 南京210009，中国烟草总公司郑州烟草研究院，郑州450000，郑州450000，郑州450000，郑州450053，郑州450053，南京210009 |
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| 摘 要： | 使用同时蒸馏萃取装置、气相色谱 /质谱联用 (GC/MS)仪 ,对约 3年自然陈化过程烤烟复烤叶片挥发性、半挥发性脂肪酸的变化进行研究 ,烟草水溶液pH的变化也进行了跟踪分析。结果表明 ,烤烟约 3年的自然陈化过程中 ,挥发性、半挥发性脂肪酸含量呈上升趋势 ,多数成分在陈化至 2 5 3 1个月左右 ,含量达到最高 ,之后含量缓慢下降。烟草水溶液pH一直呈下降趋势 ,陈化 3年后 ,pH约降低了 5 % ,陈化初期 pH下降速度大于陈化后期。对烤烟陈化过程烟草挥发性、半挥发性总量 (不含十六酸 )与 pH的变化进行了相关性研究 ,两者的相关系数为 0 .874,显示了很好的负相关关系。
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| 关 键 词： | 烤烟 复烤叶片 酸性成分 气相色谱/质谱 陈化 pH |
Changes of Volatile,Semi-Volatile Fatty Acids and pH of Yunnan Flue-Cured Tobacco during Aging |
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| Li Yanqiang , Hu Youchi Zong Yongli Wu Yongjun Qu Lingbo Xiang Bingren.Changes of Volatile,Semi-Volatile Fatty Acids and pH of Yunnan Flue-Cured Tobacco during Aging[J].Flavour Fragrance Cosmetics,2004(3):21-24. |
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| Authors: | Li Yanqiang Hu Youchi Zong Yongli Wu Yongjun Qu Lingbo Xiang Bingren |
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| Affiliation: | Li Yanqiang 1,2 Hu Youchi 2 Zong Yongli 2 Wu Yongjun 3 Qu Lingbo 3 Xiang Bingren 1 |
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| Abstract: | The acidic components were analyzed with simultaneous distillation and extraction equipment by GC/MS to observe the changes of the acids in redried lamina of Yunnan flue-cured tobacco during three-year aging.The change of pH was also studied.The results show:the contents of the volatile,semi-volatile acids indicate increasing trend.Most acids reach the highest point during 25-31months of aging,then drop slowly,pH of tobacco lamina always decreases during three-year aging and pH of lamina reduces about 5% after three years.The reducing speed during early aging exceeds that of late aging.In addition,the correlativity between pH and total acids during aging was studied.The coefficient of correlation is -0.874. |
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| Keywords: | Flue-cured tobacco Redried lamina Acidic component GC/MS Aging pH |
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