Plant Diversity ›› 2006, Vol. 28 ›› Issue (2): 208-214.

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Chemical Composition and Antioxidant Activities of the Essential Oils of Five Magnoliaceae Species from South China

 ZHONG  Rui-Min-1、2,   Zhang-Zhen-Ming-2,   Xiao-Zi-Jun-2,   Ceng-Qing-Xiao-1,   Wang-Yu-Mei-2**   

  1. 1 Coll ege of Light Industry and Food Science , South China University of Technology, Guangzhou 510640, China;
    2 Yingdong College of Bi otechnol ogy , Shaoguan College , Shaoguan 512005, China
  • Online:2006-04-25 Published:2014-01-17


The essential oils of five Magnoliaceae plants, namely Manglietia moto Dandy , Manglietia y uyanensis Law,
Michelia chap ensis Dandy, Michelia foveolata Merr. ex Dandy, and Michelia maudiae Dunn, growing wild in Nanling
National Nature Reserve of Guangdong province, were analyzed for their chemical composition and tested for their antiox-i
dant effectiveness. The GC-MS analyses as well as comparison of the retention indices ( RI) of elution peaks with literature
data were used in compound identification of the essential oils; the B- carotene bleaching ( BCB) test method was used in
the preliminary evaluation of antioxidant activities for them. The M1 maudiae oil characterizes high contents of monoterpenes,
while other four oils are all constituted mainly by sesquiterpenoids. The high consistence of composition and similar-i
ties in major constituents between the M1 moto and M1 yuyanensis oils may indicate their close correlation between relatives.
The 50% inhibition were accomplished with 616 gPL of M1 moto oil, 918 gPL of M1 yuyanensis oil, 111 3 gPL of
M1f oveolata oil and 1212 gPL of M1 chap ensis oil, respectively , whereas M1 maudiae oil could not inhibit 50% of the
bleaching reaction under the test conditions.

Key words: Magnoliaceae, Aromatic plant, Essential oils, GC-MS analysis, Antioxidant activity, B- carotene bleaching

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