Novel method for aroma recovery from the bioconversion of lutein to β-ionone by Trichosporon asahii using a mesoporous silicate material

Autor: Eduardo Rodríguez-Bustamante, Ángeles Sánchez-Contreras, T. Klimova, Gabriela Maldonado-Robledo, Roberto Arreguín-Espinosa, Sergio Sánchez
Rok vydání: 2006
Předmět:
Zdroj: Applied Microbiology and Biotechnology. 71:568-573
ISSN: 1432-0614
0175-7598
Popis: In this work, we report on the synthesis and ability of the mesoporous material MCM-41 to adsorb the norisoprenoid beta-ionone. This compound, with a violet aroma note, can be produced from lutein by the yeast Trichosporon asahii through a bioconversion process. We found that beta-ionone inhibited the yeast growth and constrained aroma formation. Growth inhibition was overcome using silicate MCM-41 as sorbent device in a fermentation system that allowed product removal from the culture medium by headspace manipulation. Compared to a commercial silica gel, the mesoporous material exhibited a 4.5-fold higher beta-ionone adsorption. Contrasting to cultures without the sorbent device, the presence of MCM-41 allowed a marked increase (14-fold) in beta-ionone production. Our results suggested that confinement of the norisoprenoid into the sorbent material bypassed its toxicity which allowed a better beta-ionone production. This study represents the first report on the use of MCM-41 to recover an aroma produced by fermentation and therefore, a novel application for a mesoporous material.
Databáze: OpenAIRE