摘要：

Volatile oil from the rhizome of C u rc u m a l o n g a was isolated, characterised by Gas ChromatographyMass Spectroscopy. In Curcuma longa, 240% of yield was obtained from methanol extract, 180% of acetone extract, 140% yield of hexane rhizome extract and 1.4% of essential oil. GC – M S A n a l y si s i n d i c a t e d t h a t t h e e s se n t i a l o i l o f C u rc u m a l o n g a 3 0 p e a k s . M a j o r c o n st i t u e n t s w e r e i d e n t i f i e d a s α - t u r m e r o n e ( 3 8 . 2 4 % ) , C a m p h o r ( 3 2 . 3 % ) a n d β – t u r m e r o n e ( 2 2 . 2 5 ) . The antimicrobial activity of oil was tested against human and plant pathogenic bacteria and fungi. The oil showed significant inhibitory activity against the pathogenic bacteria and fungi. No activity was observed against the fungi Aspergillus niger.

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