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Advisor(s)
Abstract(s)
Lippia alba (Mill.) N.E. Brown, the ginger grass, is a medicinal and aromatic plant widely used in Latin
America. In this work the effect of the geographical origin and different drying methodologies on L.
alba leaves production, essential oil content and composition were evaluated. Field experiments were
conducted in three different municipalities (Amargosa, Cruz das Almas and Santo Antônio de Jesus) from
Bahia region (Brazil) and two drying methodologies (traditional and artificial with controlled conditions)
were assessed. Fresh and dried leaves essential oils were extracted by hydro-distillation and their volatiles
were determined by gas chromatography.The geographical origin affected the mass production, essential
oil content and both qualitative and quantitative fractions of their composition. Leaves from Cruz das
Almas had higher yield in essential oil content. Overall, 26 oil constituents were identified. Carvone,
germacrene D and limonene were the main oil constituents. The drying methodologies combined with the
geographic origin influenced essential oil composition showing that L. alba constituents were influenced
by post-harvest treatments. Some constituents were sensitive to both methods applied, while some
enhanced their content like germacrene D.
Description
Keywords
Lippia alba (Mill) N.E. Brown Geographic origin Drying methodology Essential oil Volatiles
Citation
Teles, Simone; Pereira, J.A.; Santos, Carlos H.B.; Menezes, Renata V.; Malheiro, Ricardo; Lucchese, Angélica M.; Silva, Franceli (2012). Geographical origin and drying methodology may affect the essential oil of Lippia alba (Mill) N.E. Brown. Industrial Crops and Products. ISSN 0926-6690. 37:1, p. 247-252
Publisher
Elsevier