naa a22 4500 510725295 CHVBK 20180411082933.0 cr unu---uuuuu 180411e20131201xx s 000 0 eng 10.1007/s11947-012-1026-z doi (NATIONALLICENCE)springer-10.1007/s11947-012-1026-z Comparison of Chemical Composition, Antioxidant and Antimicrobial Activity of Lavender ( Lavandula angustifolia L.) Essential Oils Extracted by Supercritical CO2, Hexane and Hydrodistillation [Elektronische Daten] [Luu Danh, Le Han, Ngo Triet, Jian Zhao, Raffaella Mammucari, Neil Foster] The effects of three different extraction methods, namely hydrodistillation, supercritical CO2 extraction (SCE) and hexane extraction on the yield, chemical composition and antimicrobial and antioxidant activities of lavender essential oil were investigated in this study. SCE produced a yield of 6.7% (dry weight), which was comparable to that of solvent extraction (7.6%), but significantly higher than that of hydrodistillation (4.6%). The chemical composition of the oils showed considerable variations among the extraction methods, with linalool, linalyl acetate, camphor and borneol making up approximately 80% of identified components in all extracts. Hexane extraction produced oils with the presence of waxes, colour pigments and albuminious materials with semi-solid consistency, while hydrodistillation extracts showed signs of thermal degradation. The SCE extracts had an aroma with the closest resemblance to the starting material, showing negligible thermal degradation, and exhibited significantly higher antioxidant activity than the hydrodistillation and hexane extracts. Oils produced by SCE and hydrodistillation had antimicrobial activities higher than hexane extracts. The results of this study demonstrate that SCE is a promising process for the extraction of lavender essential oil. Springer Science+Business Media New York, 2012 Lavandula angustifolia L nationallicence Supercritical CO2 extraction nationallicence Essential oil nationallicence Antimicrobial activity nationallicence Antioxidant activity nationallicence Danh Luu School of Chemical Engineering, The University of New South Wales, 2052, Sydney, NSW, Australia aut Han Le School of Chemical Engineering, The University of New South Wales, 2052, Sydney, NSW, Australia aut Triet Ngo School of Chemical Engineering, The University of New South Wales, 2052, Sydney, NSW, Australia aut Zhao Jian School of Chemical Engineering, The University of New South Wales, 2052, Sydney, NSW, Australia aut Mammucari Raffaella School of Chemical Engineering, The University of New South Wales, 2052, Sydney, NSW, Australia aut Foster Neil School of Chemical Engineering, The University of New South Wales, 2052, Sydney, NSW, Australia aut Food and Bioprocess Technology Springer US; http://www.springer-ny.com 6/12(2013-12-01), 3481-3489 1935-5130 6:12<3481 2013 6 11947 https://doi.org/10.1007/s11947-012-1026-z text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s11947-012-1026-z text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Danh Luu School of Chemical Engineering, The University of New South Wales, 2052, Sydney, NSW, Australia aut NATIONALLICENCE 700 1- Han Le School of Chemical Engineering, The University of New South Wales, 2052, Sydney, NSW, Australia aut NATIONALLICENCE 700 1- Triet Ngo School of Chemical Engineering, The University of New South Wales, 2052, Sydney, NSW, Australia aut NATIONALLICENCE 700 1- Zhao Jian School of Chemical Engineering, The University of New South Wales, 2052, Sydney, NSW, Australia aut NATIONALLICENCE 700 1- Mammucari Raffaella School of Chemical Engineering, The University of New South Wales, 2052, Sydney, NSW, Australia aut NATIONALLICENCE 700 1- Foster Neil School of Chemical Engineering, The University of New South Wales, 2052, Sydney, NSW, Australia aut NATIONALLICENCE 773 0- Food and Bioprocess Technology Springer US; http://www.springer-ny.com 6/12(2013-12-01), 3481-3489 1935-5130 6:12<3481 2013 6 11947 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer