Volatile composition of Curcuma angustifolia Roxb. rhizome from central and southern India

Abstract

The rhizome essential oils of Curcuma angustifolia from Central and Southern India were subjected to GC/ MS analysis, which resulted in the identification of 81 and 78 constituents, accounting for more than 95 and 99% of the oil contents, respectively. The major constituents in the rhizome oil from Central India were xanthorrhizol isomer (12.7%), methyl eugenol (10.5%), palmitic acid (5.2%) and camphor (4.2%), while the rhizomes oil from Travancore (Southern India) had germacrone (12.8%), camphor (12.3%), isoborneol (8.7%), curdione (8.4%) and 1,8-cineole (4.8%) as major constituents.

Volatile chemistry of a plant: mono‐sesquiterpenoid pattern in the growth cycle of Curcuma haritha

“…Fraction 6 on preparative TLC in 9.0 : 1.0 petroleum ether : diethyl ether yielded compound 4. These compounds were characterized by m.p., UV-Vis (Shimadzu 1650 UV-Vis spectrometer, Japan), IR (ABB FLTA2000 FT-IR spectrometer, USA), 1 H-, 13 C-, 13 C-DEPT NMR (JEOL GSX 500 MHz FT NMR spectrometer, Japan), MS (Finnigan MAT 8230 mass spectrometer, Germany) and specifi c rotation (Rudolph Autopol IV polarimeter, USA) measurements. 1, 2, 3 and 4 were identifi ed as germacrane-type sesquiterpenoids germacrone, curdione, neocurdione and furanogermenone, respectively.…”

“…The purity of these compounds was ascertained in a HPTLC system with a Linomat V Applicator, Scanner III and WINCATS Software (Camag, Switzerland). Their structures were elucidated by UV-Vis (Shimadzu 1650 UV-Vis spectrometer, Japan), IR (ABB FLTA2000 FT-IR spectrometer, USA), 1 H-, 13 C-, 13 C-DEPT, 2D-COSY NMR (JEOL GSX 500 MHz FT NMR spectrometer, Japan) and MS (Finnigan MAT 8230 mass spectrometer, Germany) measurements. Specifi c rotations of these compounds were also measured (Rudolph Autopol IV polarimeter, USA).…”

“…It is an economically important genus with wide uses as spices, medicines and dyes. The chemistry of volatiles in C. longa (C. domestica), [10,11] C. aromatica, [10,12] C. angustifolia, [8,13] C. wenyujin, [14] C. mangga, [15] C. xanthorrhiza, [10] C. aeruginosa, [10,16] C. heyneana, [10] C. amada, [17] and C. ceasia [18] have been studied by various authors. These GC profi ling studies were based on one-time sampling in the entire growth cycle(s) of these Curcuma species.…”

“…The yield of volatile oil, feasibility of growing the herb in natural conditions and ease of handling C. haritha samples (rhizomes) further facilitated its choice for this study. Chemical profi les of C. haritha rhizome volatile oils were analysed by a range of GC-based tools, supported by IR, mass, 1 H-NMR, 13 C-NMR and 2D-NMR spectroscopy. The genus Curcuma, with over 100 species, is widely distributed in the tropics of Asia, Africa and Australia.…”

Volatile constituents from the rhizomes of Curcuma haritha Mangaly and Sabu from southern India

“…23 The rhizome oil of the specimen identified as C. angustifolia from 'Travancore' had camphor (21.3%), germacrone (12.8%), isoborneol (8.7%), curdione (8.4%), 1,8-cineole (4.8%) and borneol (4.8%) as its major constituents. The chemical composition of this 'Travancore' sample varied remarkably from the chemical profiles of C. angustifolia from central India (xanthorrhizol isomer 12.7%, methyl eugenol 10.5%, palmitic acid 5.2%, camphor 4.2%, etc.)…”