Naslov
Application of solvent engineering in the enzymatic production of isoamyl acetate

Autori
Feher, Erika ; Findrik, Zvjezdana ; Kelemen-Horvath Illona ; Belafi-Bako Katalin ; Gubicza, Laszlo

Vrsta, podvrsta i kategorija rada
Radovi u zbornicima skupova, cjeloviti rad (in extenso), znanstveni

Izvornik
Muszaki Kemiai Napok '08 Conference of Chemical Engineering '08 / Endre, Nagy ; Ferenc, Simon ; Katalin, Kiss ; Imre, Hegedus - Veszprém : Pannon Egyetem, 2008, 134-137

ISBN
978-963-9696-36-5

Skup
Muszaki Kemiai Napok '08 Conference of Chemical Engineering

Mjesto i datum
Veszprém, Mađarska, 22.04.2008. - 24.04.2008

Vrsta sudjelovanja
Poster

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
lipase; ionic liquid; isoamyl acetate
(lipaza; ionska kapljevina; izoamilacetat)

Sažetak
Enzymatic production of an important natural flavour ester, isoamyl acetate was studied by using immobilized Candida antartica lipase B in different reaction media, such as ionic liquids, supercritical fluid and solvent-free system. After thermal stability investigations [bmim PF6 ionic liquid was chosen as best reaction medium. The synthesis was carried out in a bioreactor with 90-92 % yield, then it was completed by removing water produced in the reaction by zeolite adsorption. Finally, practically 100 % yield was achieved. An integrated system was developed for the separation of the isoamyl alcohol - water - isoamyl acetate ternary azeotropic mixture, combining pervaporation and osmotic distillation. An alternative route, extractive distillation, was also investigated for separation by using ionic liquids as entrainers.

Izvorni jezik
Engleski

Znanstvena područja
Biotehnologija

POVEZANOST RADA