title: Chemical composition and antioxidant activity of essential oil from leaves and rhizomes of Curcuma angustifolia Roxb.
abstract: The essential oil extracted from rhizome and leaf of Curcuma angustifolia 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-δ-cadinene (18.6%) and γ-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. 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 C. angustifolia can be used as an alternative source of natural antioxidant.
authors.affiliation: a Centre of Biotechnology , Siksha 'O' Anusandhan University , Bhubaneswar , India.
authors.forename: Sudipta
authors.initials: S
authors.lastname: Jena
authors.affiliation: a Centre of Biotechnology , Siksha 'O' Anusandhan University , Bhubaneswar , India.
authors.forename: Asit
authors.initials: A
authors.lastname: Ray
authors.affiliation: b Department of Anaesthesia , IMS and SUM Hospital, Siksha 'O' Anusandhan University , Bhubaneswar , India.
authors.forename: Anwesha
authors.initials: A
authors.lastname: Banerjee
authors.affiliation: a Centre of Biotechnology , Siksha 'O' Anusandhan University , Bhubaneswar , India.
authors.forename: Ambika
authors.initials: A
authors.lastname: Sahoo
authors.affiliation: a Centre of Biotechnology , Siksha 'O' Anusandhan University , Bhubaneswar , India.
authors.forename: Noohi
authors.initials: N
authors.lastname: Nasim
authors.affiliation: a Centre of Biotechnology , Siksha 'O' Anusandhan University , Bhubaneswar , India.
authors.forename: Suprava
authors.initials: S
authors.lastname: Sahoo
authors.affiliation: a Centre of Biotechnology , Siksha 'O' Anusandhan University , Bhubaneswar , India.
authors.forename: Basudeba
authors.initials: B
authors.lastname: Kar
authors.affiliation: c Department of Botany , S.K.C.G Autonomous College , Paralakhemundi , India.
authors.forename: Jeetendranath
authors.initials: J
authors.lastname: Patnaik
authors.affiliation: d Taxonomy and Conservation Division , Regional Plant Resource Centre , Bhubaneswar , India.
authors.forename: Pratap Chandra
authors.initials: PC
authors.lastname: Panda
authors.affiliation: a Centre of Biotechnology , Siksha 'O' Anusandhan University , Bhubaneswar , India.
authors.forename: Sanghamitra
authors.initials: S
authors.lastname: Nayak
mesh_terms: D000975:Antioxidants / Q000737:chemistry* / Q000494:pharmacology*; D030024:Curcuma / Q000737:chemistry*; D008401:Gas Chromatography-Mass Spectrometry; D009822:Oils, Volatile / Q000737:chemistry* / Q000494:pharmacology*; D018515:Plant Leaves / Q000737:chemistry; D000081223:Polycyclic Sesquiterpenes; D027343:Rhizome / Q000737:chemistry; D012717:Sesquiterpenes / Q000032:analysis; D045787:Sesquiterpenes, Eudesmane / Q000032:analysis; D045788:Sesquiterpenes, Germacrane / Q000032:analysis
chemical_list: D000975:Antioxidants; D009822:Oils, Volatile; D000081223:Polycyclic Sesquiterpenes; D012717:Sesquiterpenes; D045787:Sesquiterpenes, Eudesmane; D045788:Sesquiterpenes, Germacrane; C499668:gamma-eudesmol; C048393:germacrone; C000607799:delta-cadinene
keywords: Curcuma angustifolia Roxb; antioxidant activity; essential oil; volatile composition