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Composition of essential oil from Lippia graveolens . Relationship between spectral light quality and thymol and carvacrol content

2013; Taylor & Francis; Volume: 26; Issue: 3 Linguagem: Inglês

10.1080/10412905.2013.840808

2163-8152

Adela Yolanda Bueno-Durán, Jesús Cervantes-Martínez, Eva N. Obledo‐Vázquez,

Natural product bioactivities and synthesis

AbstractContent of thymol and carvacrol in Lippia graveolens essential oil was studied in response to variations in the spectral quality of light through the use of specific filters. Red, blue and transparent filters were used in the experiment. The plants responses were determined by internode distance and number of flowers. Responses in the essential oil were determined by thymol+carvacrol percentage and thymol:carvacrol ratio (T:C). The thymol+carvacrol percentage increased from 34% to 69% in red and from 34% to 87% in blue treatment. T:C ratio shows 1:1.5, 1:1.7 and 2.8:1 in control, red and blue treatments, respectively. Composition, especially T:C ratio, is an important factor in the quality of this essential oil because of its influence in biological activity.Keywords: thymolcarvacrolspectral quality AcknowledgementsThis work was supported by Consejo Nacional de Ciencia y Tecnología (CONACYT), México by 49990 Project. A fellowship provided to Adela Yolanda Bueno Duran by Programa de Mejoramiento del Profesorado (PROMEP), México, is gratefully acknowledged. We sincerely thank Matt Pickler (Peace Corps Volunteer) for his assistance in the language revision of this work.