Please use this identifier to cite or link to this item: http://repositorio.unicamp.br/jspui/handle/REPOSIP/64945
Type: Artigo de periódico
Title: Enzymatic synthesis of isoamyl ester in aqueous media optimization using a central composite design
Author: Macedo, GA
Pastore, GM
Abstract: Catalytic action of two non-commercial lipases (E.C. 3.1.1.3) during isoamyl acetate synthesis in a solvent-free system was tested using experimental design to better understand relationship between reaction variables. Yields ranging from 67 to 77% molar conversion were achieved. Synthesis of isoamyl acetate catalyzed by the chosen lipase (Rhizopus sp.) was optimized, to maximize the molar conversion (yield, Y) in a solvent-free system. Response surface methodology involving substrate molar ratio (RM) and amount of lipase (L) was used, and a second-order model was employed to generate response surfaces. Optimum conditions to obtain Y max = 80% were: RM= (2: 1), L= 8.7% (w/w), 40degreesC, and 48 hr of reaction time.
Subject: flavor esters
esterification
response surface methodology
lipase
isoamyl acetate
Country: Coreia do Sul
Editor: Korean Soc Food Science Technology
Rights: fechado
Date Issue: 2004
Appears in Collections:Unicamp - Artigos e Outros Documentos

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