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- Title
DETERMINAÇÃO DO RENDIMENTO, TEOR E COMPOSIÇÃO QUÍMICA DE ÓLEO ESSENCIAL DE ESPÉCIE MEDICINAL ALOYSIA GRATÍSSIMA (GILLIES & HOOK.) TRONC. EM DIFERENTES HORÁRIOS DO DIA.
- Authors
Paulus, Dalva; Becker, Dislaine; Pereira Ramos, Celso Eduardo
- Abstract
Aloysia gratissima, popularly known as Brazilian lavender, is an important medicinal plant, the essential oil being rich in terpenes. Determining the harvest time that results in greater yield, essential oil content and chemical compounds, are important information for the entire production chain of medicinal plants In this sense, the objective of this work was to analyze the yield, content and chemical composition of the essential oil of A. gratíssima, at different harvest times. The experiment was carried out at the Universidade Tecnológica Federal do Paraná - Campus Dois Vizinhos, in the years 2018 and 2019. The treatments were different harvest times (9:00 am, 11:00 am, 3:00 pm and 5:00 pm) of fresh mass by A. gratissima. The essential oil was obtained by the hydrodistillation method and the chemical composition determined by gas chromatography-mass spectrometry. The best results for essential oil content (1.18 and 0.55%) and yield (0.71 and 0.33 g plant-1 ) were obtained at 9:00 am and 11:00 am, respectively, when the plants were in the flowering stage, and also favorable climatic conditions, such as mild temperatures. Gas chromatography-mass spectrometry revealed that the main components of essential oils were as terpenes. Eucalyptol (39.30%) was the major component of the essential oil at the 9:00 am harvest time. The results of this study may contribute to optimizing the period of harvesting A. gratissima, regarding the quantity and quality of essential oils for the pharmaceutical and cosmetics industry.
- Publication
Arquivos de Ciências da Saúde da UNIPAR, 2023, Vol 27, Issue 10, p5537
- ISSN
1415-076X
- Publication type
Article
- DOI
10.25110/arqsaude.v27i10.2023-007