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Nghiên cӭu qui truQKFKѭQJFҩWSKkQÿRҥn tinh dҫu trjm giy
(Fractionation of cajeput essential oil using vacuum fractional distillation) II 1+,ӊ09Ө9¬1Ӝ,'81*
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Trang 4LӠI CҦ0Ѫ1
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Chân WKjQKFҧPѫQ
Trang 5TÓM TҲT LUҰ19Ă1
Cic sҧn phҭm WLQKGҫXWUrQWKӏ WUѭӡng hiӋQQD\ÿDSKҫn lj WLQKGҫXWK{FyKjPOѭӧQJKRҥWFKҩWWKҩSQrQFKѭDWұQGөQJKӃWJLiWUӏNLQKWӃPDQJOҥLWӯQJuӗn nguyên liӋu nông nghiӋp 7URQJQJKLrQFӭXQj\SKѭѫQJSKiSFKѭQJFҩWSKkQÿRҥQFKkQNK{QJYӟLFӝW Vigreux và FӝW+HPSHO ÿѭӧFVӱGөQJÿӇphân tich WLQKGҫu tràm gió thô thành các phân ÿRҥQGӵDYjRQKLӋWÿӝ sôi khác nhau 7K{QJVӕYұQKjQKFKRTXiWUuQKFKѭQJFҩWSKkQÿRҥQÿѭӧFOӵDFKӑQOj VӱGөQJFӝW+HPSHO ӣiSVXҩWPP+J, ORҥLÿӋPOz[RWKpSNK{QJ JӍ NtFK WKѭӟF u PP FKLӅX FDR FӝW PP +jP OѭӧQJ Yj ÿӝ WKX KӗLeucalyptol ӣ ÿLӅX NLӋQ Qj\ OҫQ OѭӧWOj 74,8 và 96,4% &iF SKkQ ÿRҥQ FNJQJ ÿѭӧF WKӱQJKLӋPKRҥWWtQKNKiQJNKXҭQYjVRViQKYӟLWLQKGҫXWK{.ӃWTXҧFKRWKҩ\WLQKGҫX
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Trang 6ABSTRACT
Essential oils on the market today are mostly raw oils with low active content, so the economic value from agricultural materials has not been fully utilized In this study, the vacuum fractionation method with Vigreux and Hempel columns was used to separate raw cajeput essential oil into fractions based on different boiling temperatures The operating parameter for the fractional distillation selected is to use Hempel column at a pressure of 60 mmHg, stainless steel string (size 2 u 10 mm), column height of 500 mm Eucalyptol content and recovery under these conditions were 74.8 and 96.4%, respectively The fractions were also tested for antibacterial activity and compared with
raw essential oil The results showed that raw essential oil was only effective against S aureus while the fractions were capable of strongly inhibiting all four bacterial strains In particular, the bottom fraction (B) was more effective against E coli, S aureus, and S typhimurium than the top fraction (F3) Both fractions showed similar effects in inhibiting P aeruginosa at low MIC
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TP HCM, ngày 04 tháng 02 QăP21
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Phҥm Hoàng Danh
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Trang 12DANH MӨC HÌNH
Hình 1.1 Hoa và lá cây tràm gió 2
Hình 1.2 BҧQÿӗ phân bӕ tӵ nhiên cӫa cây tràm gió 3
Hình 1.3 Công thӭc cҩu tҥo cӫD D HXFDO\SWROYj E