Production and Composition of Essential Oil of "Alfavaquinha" (Ocimum selloi Benth.) in Response to Two Levels of Solar Radiation
DOI:
https://doi.org/10.70151/jccrnp03Keywords:
Ocimum selloi, medicinal plants, essential oil, solar radiationAbstract
Ocimum selloii Benth (Lamiaceae) grows in the south and southwest of Brazil and produces essential oil. This plant is used in the folk medicine and presents medicinal properties as confirmed in pre-clinical tests. The aim of this work was to evaluate the influence of two levels of solar radiation on the production and composition of essential oil of O. selloi. Plants obtained from seeds of a specimen collected in Nova Friburgo (RJ), and cultivated in Viçosa, were grown under full solar radiation and 50% shady. The oil was extracted by hydrodistillation and analysed by cromatography in its gas fase and mass espectrometry. The oil content and the percentage of estragole and anethole, the major compounds present in the oil, did not vary with the solar radiation intensity. During the oil extraction a partial conversion of estragole in anetole was observed.
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References
ADAMS, R.P. Identification of essential oil components by gas chromatography mass spectroscopy. Ilinois: Allured Publishing Corporation, 1995. 468p.
ALMEIDA, V.P., FIGUEIREDO-RIBEIRO C.L. F. Análise enzimática e quimiotaxonomia de duas variedades do Ocimum nudicaule. Revista Brasileira de Botânica, v.9, p.75-80, 1986.
AMARAL, C.L., OLIVEIRA, J.E.Z., CASALI, V.W.D. Plantas medicinais e aromáticas: melhoramento genético. Viçosa: UFV Departamento de Fitotecnia, 1999. 153p.
AMARAL, C.L., CASALI, V.W.D. Identificação e Caracterização de duas populações de alfavaca (Ocimum selloi Benth.) por marcadores isoenzimáticos. Revista Brasileira de Plantas Medicinais, v. 2, n. 2, p. 9-15, 2000.
BURBOTT, A.J., LOOMIS, W.D. Effects of light and temperature on the monoterpenes of peppermint. Plant Physiology, v. 42, p.20-8, 1967.
CANTORIA, M., CUEVAS-GACUTAN, V.T. Studies on the physiology of philippine mint II. Effect of two different light intensities on the vegetative growth and oil yield. The Philippine Journal of Science, v. 103, p. 13-20, 1974.
CHARLES, D.J., SIMON, J.E. Comparison of extraction methods for the rapid determination of essential oil content and composition of basil. Journal American Society for Horticultural Science, v. 115, n.3, p. 458-462, 1990.
CLARK. R.J., MENARY, R.C. Environmental effects on Peppermint (Mentha piperita L.). I. effect of daylength, photon flux density, nigth temperature and day temperature on the yield and composition of peppermint oil. Australian Journal of Plant Physiology, v.7, p.685-692, 1980.
CRAVEIRO, A.A., FERNANDES, A.G., ANDRADE, C.H.S. Óleos essenciais de plantas do nordeste. Fortaleza: EUFC, 1981. 210p.
DUDAI, N., WERKER, E., PUTIEVSKY, E., et al. Glandular hairs and essential oils in the leaves and flowers of Manjorana syriaca. Israel Journal of Botany, v.37, p.11-8, 1988.
FAHN, A. Plant anatomy. Toronto: Pergamon Press, 1975. 611p.
GONÇALVES, L. A. Ontogenia dos tricomas glandulares e influência da radiação solar no desenvolvimento e no teor de óleo essencial de Ocimum selloi Benth. (Lamiaceae). 1996. 97p. Dissertação (Mestrado em Botânica) Universidade Federal de Viçosa, Viçosa.
GOTTLIEB, O.R., SALATINO, A. Função e evolução de óleos essenciais e de suas estruturas secretoras. Ciência e Cultura, v.39, n.8, p.707-16, 1987.
LAVRABRE, M. Aromaterapia: a cura pelos óleos essenciais. Rio de Janeiro: Record, 1990. 172p.
LI, Y., CRAKER, L.E., POTTER, T. Effect of light on essential oil production of sage (Salvia officinalis) and thyme (Thymus vulgaris). Acta Horticulturae, v.426, p.419-26, 1996.
MARTINS, E.R. Morfologia interna e externa, Caracterização Isozimática e Óleo essencial de Ocimum selloi Benth. 1996. 97p. Dissertação (Mestrado em Fitotecnia) Universidade Federal de Viçosa, Viçosa.
SALEH, M. Effects of light upon quantity and quality of Matricaria chamomilla oil. Planta Medica, v.24, p.337-40, 1973.
SIMON, J.E., REISS, B.D., JOLY, R.J., et al. Water stress-induced alterations in essential oil content and composition of sweet basil. Journal of Essential Oil Research, v.4, p.71-5, 1992.
VANDERLINDE, F.A., COSTA, E.A., D'ANGELO, L.C. A. Atividades farmacológicas gerais e atividade antiespasmódica do extrato etanólico de Ocimum selloi, Benth. (elixir paregórico). In: SIMPÓSIO DE PLANTAS MEDICINAIS DO BRASIL, 13, 1994, Fortaleza. Resumos... Fortaleza: UFCE, 1994. п.р.
WATERMAN, P.G. The chemistry of volatile oils. In: HAY, R.KM., WATERMAN, P.G. (Eds.) Volatile oil crops: their biology, biochemistry and production. Harlow: Longman Scientific, Technical, 1993. p.47-61.
YAMAURA, T., TANAKA, S., TABATA, M. Lighy-dependent formation of glandular trichomes and monoterpenes in thyme seedlings. Phytochemistry, v.28, n.3. p.741-4, 1989.
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