000 02169nam a2200253 a 4500
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008 111212t2010 my da f m 000 0 eng d
020 _aTHE0004093(Local)
039 9 _a201905160932
_bfauzi
_y201112121138
_zFida
040 _aUMP
090 _aTP156 .E8 T36 2010 rs Bc.
100 1 _aTan, Kim Pieu
245 1 0 _aComparison of microwave-assisted hydrodistillation with the conventional hydrodistillation method in the extraction of essential oil (lemongrass and star anise) /
_cTan Kim Pieu
260 _aKuantan, Pahang :
_bUMP,
_c2010
300 _axv, 90 p. :
_bill. (some col.) ;
_c30 cm. +
_e1 computer disc
502 _aProject paper (Bachelor of Chemical Engineering) -- Universiti Malaysia Pahang - 2010
504 _aBibliography: p. 75-80
520 3 _aMicrowave-assisted hydrodistillation (MAHD) has recently been developed for the extraction of essential oils from plant materials. In this study, microwaveassisted hydrodistillation was investigated for the extraction of essential oils from lemongrass and start anise and the results were compared with those of the conventional hydrodistillation in terms of extraction time, extraction yield/efficiency and chemical composition. Microwave-assisted hydrodistillation was efficient in extraction in terms of extraction time and energy saving. Lemongrass and star anise was in the ratio of 1:10 with water and the essential oils components were identified using GCMS. There were significant different in the extraction yield of essential oils from both of the method and higher yield were obtained from MAHD method. Results of analysis from gas chromatography-mass spectrometry indicated that the use of microwave in hydrodistillation did not adversely influence the composition of essential oils. Microwave-assisted hydrodistillation was found to be environmentally friendly due to its shorter extraction time and therefore lower energy consumption.
650 0 _aExtraction (Chemistry)
650 0 _aEssences and essential oils
999 _aVIRTUA40
_c2128
_d2134
999 _aVTLSSORT0080*0200*0400*0900*1000*2450*2600*3000*5020*5040*5200*6500*6501*9992