Study on volatile components analysis and anti-oxidation activity from the different season leaves of Magnolia officinalis

To empolder natural perfume and medicinal composition of the leaf of Magnolia officinalis obtained from Qinba Mountain,the leaf of Magnolia officinalis can be used as a convenient and sanitary food packing material after processing.These volatile components from Spring and Autumn leaves of Magnolia officinalis was extracted by steam distillation,respectively,the components of their volatile components were separated and structurally identified by gas chromatography/mass spectrometry,the relative contents of these components by the peak-area normalization method adopted in gas chromatography,41 components were separated and 40 components were identified,these major components and their relative contents of these major components were different.These volatile components of Spring and Autumn leaves of Magnolia officinalis were investigated by anti-oxidation activities,and they had obvious action to anti-oxidation activities of scavenging effect for ·OH especially Autumn leaves were better than Spring leaves.