Objective： To compare the volatile constituents in mugwort leaves produced in Qichun, Hubei Province and Nanyang, Henan Province. Methods： The volatile constituents were extracted using headspace heating and analyze...Objective： To compare the volatile constituents in mugwort leaves produced in Qichun, Hubei Province and Nanyang, Henan Province. Methods： The volatile constituents were extracted using headspace heating and analyzed using gas chromatography-mass spectrometry （GC-MS）. Then a qualitative analysis was made according to the standard database provided by the National Institute of Standards and Technology （NIST） and the relative contents of each constituent were calculated using the peak area normalization method. Results： A total of 59 compounds were identified from the mugwort leaves from Qichun and 51 compounds were identified from the mugwort leaves from Nanyang. These mainly include monoterpenoids, sesquiterpenoids, C^HvOz and other compounds involving the aldehyde, ketone, alkane and benzene. The mugwort leaves from Qichun and Nanyang share 32 common volatile constituents. The chromatographic peak area of identified compounds accounting for 96.38% of GC-MS total chromatographic peak areain Qichun mugwort leaves, versus 95.54% of that in Nanyang mugwort leaves. Conclusion： The headspace heating extraction combined with GC-MS technology can evidently display similarities and differences of volatile constituents in mugwort leaves produced in different areas and thus provide scientific basis for the quality and screening of mugwort leaves.展开更多
采用α-多样性指数分析了湖北蕲春清水河野生蕲艾群落物种多样性。结果表明:该蕲艾种群面积为110~120 m 2,植株数300~400株,盖度仅为10%左右。主要有16科24属28种与蕲艾相伴生。蕲春清水河野生蕲艾群落的群丛名为构树+一年蓬。α-多样...采用α-多样性指数分析了湖北蕲春清水河野生蕲艾群落物种多样性。结果表明:该蕲艾种群面积为110~120 m 2,植株数300~400株,盖度仅为10%左右。主要有16科24属28种与蕲艾相伴生。蕲春清水河野生蕲艾群落的群丛名为构树+一年蓬。α-多样性指数分析显示清水河蕲艾群落丰富度指数(R)、Simpson指数(D)、Shannon-Wiener多样性指数(H′)和Pielou均匀度指数(J)分别为28、0.817、3.397和1.020。人为干扰是影响该野生蕲艾种群恢复更新的重要原因。展开更多
基金supported by National Basic Research Program of China(973 Program,No.2015CB554506)~~
文摘Objective： To compare the volatile constituents in mugwort leaves produced in Qichun, Hubei Province and Nanyang, Henan Province. Methods： The volatile constituents were extracted using headspace heating and analyzed using gas chromatography-mass spectrometry （GC-MS）. Then a qualitative analysis was made according to the standard database provided by the National Institute of Standards and Technology （NIST） and the relative contents of each constituent were calculated using the peak area normalization method. Results： A total of 59 compounds were identified from the mugwort leaves from Qichun and 51 compounds were identified from the mugwort leaves from Nanyang. These mainly include monoterpenoids, sesquiterpenoids, C^HvOz and other compounds involving the aldehyde, ketone, alkane and benzene. The mugwort leaves from Qichun and Nanyang share 32 common volatile constituents. The chromatographic peak area of identified compounds accounting for 96.38% of GC-MS total chromatographic peak areain Qichun mugwort leaves, versus 95.54% of that in Nanyang mugwort leaves. Conclusion： The headspace heating extraction combined with GC-MS technology can evidently display similarities and differences of volatile constituents in mugwort leaves produced in different areas and thus provide scientific basis for the quality and screening of mugwort leaves.
文摘采用α-多样性指数分析了湖北蕲春清水河野生蕲艾群落物种多样性。结果表明:该蕲艾种群面积为110~120 m 2,植株数300~400株,盖度仅为10%左右。主要有16科24属28种与蕲艾相伴生。蕲春清水河野生蕲艾群落的群丛名为构树+一年蓬。α-多样性指数分析显示清水河蕲艾群落丰富度指数(R)、Simpson指数(D)、Shannon-Wiener多样性指数(H′)和Pielou均匀度指数(J)分别为28、0.817、3.397和1.020。人为干扰是影响该野生蕲艾种群恢复更新的重要原因。
