10.6084/m9.figshare.4530929.v1 Sudipta Jena Sudipta Jena Asit Ray Asit Ray Anwesha Banerjee Anwesha Banerjee Ambika Sahoo Ambika Sahoo Noohi Nasim Noohi Nasim Suprava Sahoo Suprava Sahoo Basudeba Kar Basudeba Kar Jeetendranath Patnaik Jeetendranath Patnaik Pratap Chandra Panda Pratap Chandra Panda Sanghamitra Nayak Sanghamitra Nayak Chemical composition and antioxidant activity of essential oil from leaves and rhizomes of <i>Curcuma angustifolia</i> Roxb Taylor & Francis Group 2017 Curcuma angustifolia Roxb essential oil antioxidant activity volatile composition 2017-01-09 10:43:26 Journal contribution https://tandf.figshare.com/articles/journal_contribution/Chemical_composition_and_antioxidant_activity_of_essential_oil_from_leaves_and_rhizomes_of_i_Curcuma_angustifolia_i_Roxb/4530929 <p>The essential oil extracted from rhizome and leaf of <i>Curcuma angustifolia</i> Roxb. (Zingiberaceae) was characterised by gas chromatography-mass spectrometry (GC-MS). The GC-MS analysis revealed the presence of 32 and 35 identified constituents, comprising 92.6% and 92% of total leaf and rhizome oil, respectively. Curzerenone (33.2%), 14-hydroxy-<i>δ</i>-cadinene (18.6%) and <i>γ</i>-eudesmol acetate (7.3%) were the main components in leaf oil. In rhizome oil, curzerenone (72.6%), camphor (3.3%) and germacrone (3.3%) were found to be the major constituents<i>.</i> Antioxidant capacities of oil were assessed by various methods, 2, 2-diphenyl-1-picrylhydrazyl (DPPH), 2, 2-azinobis (3-ethylbenzothiazoline-6-sulfonic acid) (ABTS) and reducing power ability (RPA). Based on the results, the leaf oil showed more antioxidant potential as compared to rhizome oil and reference standards (ascorbic acid and butylated hydroxytoluene (BHT)). Thus, the leaf essential oil of <i>C. angustifolia</i> can be used as an alternative source of natural antioxidant.</p>