Chemometric Resolution for Baseline Identification of <i>Amomum subulatum</i> Roxb. Essential Oils through FT-IR Spectroscopy Technique
- 1 Herbal Research and Development Institute, Gopeshwar, India
- 2 Department of Biotechnology, G.B. Pant Engineering College, Pauri-Garhwal, India
- 3 Herbal Research and Development Institute, Gopeshwar, India
- 4 Herbal Research and Development Institute, Gopeshwar, India
- 5 Department of Horticulture, Government of Uttarakhand, Circuit House, Dehradun, India
Abstract
Essential oil of Amomum subulatum is the complex mixture of various alkyl, alkanes, sulfonates, amines, alcohols, sulfoxides, trans RCH≡CHR and aromatic bending compounds. The FT-IR analysis of aromatic bending occurs on 845 cm -1 with para C-H bend. A strong absorption band between 900 cm -1 - 675 cm -1 indicated the presence of aromatic C=C. The alcoholic stretching detected on 1080 cm -1 and 1169 cm -1 with C-O stretching molecular motion in large cardamom. In our investigation, the frequency of 2943 cm -1 and 2934 cm -1 the C-H stretching occurred in alkyl group. The wave numbers of bands 2966 (C=CH 2 ), 1358 (S=O Stretch), 1215 (C-N Stretch), 1053 (S=O Stretch) and 984 (C-H Bending) the functional group specify vinyl, sulfonates, amines, sulfoxides and trans RCH-CHR, respectively.
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