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Keywords:

  • large cardamom;
  • Amomum subulatum;
  • Zingiberaceae;
  • pericarp of capsules;
  • ‘bhatti’;
  • essential oil;
  • chemical composition;
  • GC;
  • GC–MS

Abstract

The large cardamom pericarp (husk) yielded 0.18% volatile oil by Clevenger hydrodistillation method. This oil was analysed for physical parameters viz. specific gravity (0.9148), refractive index (1.4733) and optical rotation (−7.700). The volatile oil was subjected to GC–MS analysis and 37 compounds were identified, constituting > 98% of the total oil. The major compounds characterized were 1,8-cineole (38.7%), β-pinene (13.6%), α-terpineol (12.6%), spathulenol (8.3%), 4-terpineol (4.5%), germacrene-D (3.0%), α-pinene (2.8%) and β-selinene (2.7%). GC and GC–MS data revealed that the 1,8-cineol content was less than 50% when compared with the seed oil. Copyright © 2004 John Wiley & Sons, Ltd.