Naslov
Mathematical modeling of transesterification catalyzed by Candida antarctica lipase

Autori
Pincan, Petra ; Matun, Vlatka ; Fulanović, Nika ; Vrsalović Presečki, Ana ; Findrik, Zvjezdana ; Vasić-Rački, Đurđa

Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, sažetak, znanstveni

Izvornik
1st Conference on ˝Applied Biocatalysis˝ and 5th meeting of students and university professors from Maribor and Zagreb, Book of Abstracts / Habulin, Maja ; Primožič, Mateja - Maribor : Tiskarna tehniških fakultet Maribor, 2009, 53-54

ISBN
978-961-248-153-7

Skup
1st Conference on ˝Applied Biocatalysis˝ and 5th meeting of students and university professors from Maribor and Zagreb

Mjesto i datum
Maribor, Slovenija, 26.05.2009. - 27.05.2009

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
lipase; transesterification; modelling

Sažetak
Esters represent a significant group of organic compounds which are widely used in industry as aromas, flavors, solvents etc. The most important among them are acetates (of most alcohols). Synthesis of such ester, isoamylacetate, was studied in this work [1]. Isoamylacetate is known for its specific banana flavor. Its synthesis was carried out by transesterification of ethylacetate and isoamyl alcohol catalyzed by Candida antartica lipase (Novozyme 435) in n-hexane. Optimal reaction rate of the examined reaction was observed at water concentration of 0.5 %. The reaction kinetics was determined by the initial reaction rate method. The influence of substrates and products was examined in the reaction of transesterification, as well in the reversible hydrolysis reaction. The experiments were carried out at 50 °C and at n = 100 min-1 in the batch reactor. It was found out that the reaction is in equilibrium. Equimolar initial concentrations of isoamyl alcohol and ethyl acetate result the 70 % conversion. The mathematical model was developed and validated by the experiments in the batch reactor

Izvorni jezik
Engleski

Znanstvena područja
Biotehnologija

POVEZANOST RADA