Bibliographic citations
Pacheco, C., (2021). Obtención y caracterización del aceite esencial de Manzanilla (Matricaria recutila L.) ,mediante microondas y arrastre con vapor [Universidad Nacional Agraria La Molina]. https://hdl.handle.net/20.500.12996/4624
Pacheco, C., Obtención y caracterización del aceite esencial de Manzanilla (Matricaria recutila L.) ,mediante microondas y arrastre con vapor []. PE: Universidad Nacional Agraria La Molina; 2021. https://hdl.handle.net/20.500.12996/4624
@misc{renati/242048,
title = "Obtención y caracterización del aceite esencial de Manzanilla (Matricaria recutila L.) ,mediante microondas y arrastre con vapor",
author = "Pacheco Ferrer, Claudia Fernanda",
publisher = "Universidad Nacional Agraria La Molina",
year = "2021"
}
The purpose of this research was to obtain essential oil from chamomile flowers (Matricaria recutita L.) using two methods of extraction: microwave solvent-free and steam distillation at laboratory conditions, their yield, physico-chemical and composition was compared. To achieve chamomile essential oil by microwave solvent-free method, three levels of irradiation power were combined (1000 watts, 1200 watts and 1400 watts) with three levels of time (20 min, 40 min and 60 min), with the aim of obtaining the treatment that yields highest concentration of essential oil. Data was submitted to an ANOVA in a Complete Random Design with factorial arrange 32 . The treatment that presented the best yield of extraction was with 1200 watts and 60 minutes, yielding 0.081 per cent, this value was significantly higher compared to 0.032 per cent yielded by steam distillation method. Also, essential oil extracted through both methods was characterized. Essential oil obtained by microwave solvent- free method presented blue coloration, a relative density of 0.929 g/ml, a refraction index of 1.5013, solubility in ethanol at 70 per cent (v/v) of 4 and acidity index of 6.2333; meanwhile, the oil obtained by steam distillation was blue colored, had a relative density of 0.925 g/ml, refraction index of 1.4790, solubility in ethanol at 70 per cent (v/v) of 4 and acidity index of 3.4284. Regarding the major chemical components, the one obtained by solvent-free microwaves presented α-bisabolol (20.6%), β- caryophyllene (13.18%), Boxide α-bisabolol (12.18%) and β-elemene (5.89%); while the conventional method αbisabolol (24.72%), β- caryophyllene (17.47%), B-α-bisabolol oxide (10.88%) and germacrene-D (5.49%).
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