Journal of
Medicinal Plants Research

  • Abbreviation: J. Med. Plants Res.
  • Language: English
  • ISSN: 1996-0875
  • DOI: 10.5897/JMPR
  • Start Year: 2007
  • Published Articles: 3570

Full Length Research Paper

Influence of plant age on the content and composition of essential oil of Cymbopogon citratus (DC.) Stapf.

Ronicely Pereira Rocha*
  • Ronicely Pereira Rocha*
  • Departamento de Agronomia, Universidade do Estado de Mato Grosso, 78300-000 Tangará da Serra - MT, Brazil.
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Evandro de Castro Melo
  • Evandro de Castro Melo
  • Departamento de Engenharia Agrícola, Universidade Federal de Viçosa, 36570-000 Viçosa - MG, Brazil.
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Luiz Cláudio Almeida Barbosa
  • Luiz Cláudio Almeida Barbosa
  • Departamento de Química, Universidade Federal de Viçosa, 36570-000 Viçosa - MG, Brazil.
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Ricardo Henrique Silva dos Santos
  • Ricardo Henrique Silva dos Santos
  • Departamento de Fitotecnia, Universidade Federal de Viçosa, 36570-000 Viçosa - MG, Brazil.
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Paulo Roberto Cecon
  • Paulo Roberto Cecon
  • Departamento de Estatística, Universidade Federal de Viçosa, 36570-000 Viçosa - MG, Brazil.
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Rivanildo Dallacort
  • Rivanildo Dallacort
  • Departamento de Agronomia, Universidade do Estado de Mato Grosso, 78300-000 Tangará da Serra - MT, Brazil.
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Adalberto Santi
  • Adalberto Santi
  • Departamento de Agronomia, Universidade do Estado de Mato Grosso, 78300-000 Tangará da Serra - MT, Brazil.
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  •  Received: 03 September 2014
  •  Accepted: 29 September 2014
  •  Published: 03 October 2014

Abstract

An experiment was carried out in Viçosa, Brazil to evaluate the influence of plant age (3, 6, 9 and 12 months) on the content and chemical composition of essential oils from lemon grass, using a completely randomized design with three replications. The plants were harvested between 7:00 and 8:30 a.m, and harvesting cut made at 20 cm height from the base of the leaf. The collected material was immediately taken to the laboratory where the leaves were selected, and subsequent determination of moisture content and other chemical analysis done. The essential oil extraction was carried out by hydrodistillation. The identification of the chemical components of the lemon grass volatile oil was performed by gas chromatography and mass spectrometry (GC-MS). The quantification of the chemical composition of essential oils was made by the gas chromatograph in conjunction with a flame ionization detector (GC-FID). Based on the results obtained, it can be concluded that plant age did not influence statistically, the essential oil content extracted from the lemongrass leaves. However this provided significant changes in its chemical composition.

 

Key words: Medicinal plants, lemongrass, volatile oils, monoterpenes.