Abstract
Comparison of Ionic Liquid-Microwave-Assisted Extraction and MAE of Resveratrol from Melinjo (Gnetum gnemon L.) SeedsMaesya Rachmawati, Imalia Nurrachma Ayuningtyas, S. Sutriyo, Abdul Mun’im
Highlights
In this study, the volatiles or essential oils from Eurycoma longifolia or more commonly known as “Tongkat Ali” are extracted using microwave assisted extraction
The main objective of this research is to extract and characterize the essential oils of Eurycoma longifolia jack (Tongkat Ali) root using microwave assisted extraction (MAE) The effect of various process parameters such as extraction time (5 min, 10 min, 15 min, 20 min, 30min, and 45 min), microwave power (200W, 225W, 250W, 275W, 300W and 400W) and raw material to solvent ratio (RMTSR) (1:6, 1:8, 1:10 and 1:12) on the yield and its major constituents were investigated in this study to obtain the optimum conditions for the extraction process
The findings showed that the optimal conditions for the microwave assisted extraction of Eurycoma longifolia are 10 minutes extraction time, 225W microwave power and 1:10 for (RMTSR) with the maximum yield percentage of 1.91%
Summary
The volatiles or essential oils from Eurycoma longifolia or more commonly known as “Tongkat Ali” are extracted using microwave assisted extraction. This plant is mostly found in South-East Asian countries such as Malaysia, Indonesia, Thailand, Myanmar, and Vietnam (Rajeev et al, 2010). Soxhlet extraction has a major drawback of having longer extraction period, requires larger amount of heat energy for its process and could be a threat to the environment as it the thorough statistic demand in international market is imprecise, the price of the dried Eurycoma longifolia roots are expected to be rated in between 20 to 25 US dollars/kg. This study is scoped about investigating the factors (temperature, microwave power, extraction time and solvent volume) affecting the yield and composition extracted from the microwave assisted extraction, separation of solvent and essential oil matrix using rotary evaporator and using the proper tool (GCMS) for the characterization of the components of essential oils
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