Comparative Study of Microwave-assisted Extraction and Hydro-distillation Methods for Extracting Essential Oil from Melaleuca cajuputi in Southern Vietnam: Yield, Composition, and Efficiency Analysis

Aims: This study aimed to the extraction of Melaleuca cajuputi essential oils by microwave-assisted method. The comparison for productivity method and traditional hydro-distillation was also established figure out optimum condition isolation process.
 Methodology: Microwave-assisted employed oils. components contained in were analyzed gas chromatography-mass spectrometry. Standard methods applied investigate characteristics extracted oils, including density, acid index, saponification index ester index.
 Results: major product included caryophyllene (21.45%), γ-terpinene (6.14%), α-terpinolen (7.12%), 1R-α-pinene (3%), α-caryophyllene (10.75%), α-terpineol (0.64%), 4-terpinenol (1.34%), eucalyptol (0.86%) α-terpinen (0.77%). highest yield 0.42% (w/w) obtained at condition, which water raw material ratio 3.5 mL/g, time 210 minutes.
 Conclusion: process performed proved that effective oil both quality quantity.