Biotechnology Letters 2008-06-01

Sugar beet leaves as new source of hydroperoxide lyase in a bioprocess producing green-note aldehydes.

Holy N Rabetafika, Cédric Gigot, Marie-Laure Fauconnier, Marc Ongena, Jacqueline Destain, Patrick du Jardin, Jean-Paul Wathelet, Philippe Thonart

Index: Biotechnol. Lett. 30(6) , 1115-9, (2008)

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Abstract

Hydroperoxide lyase activity was found in sugar beet leaves. Its optimum pH and temperature were, respectively, 6.7 and 22 degrees C. Under these conditions, conversion of linolenic acid 13-hydroperoxide to cis-3-hexenal with a maximum yield of 80% was reached after only 2 min. The stability of cis-3-hexenal was improved by acidifying the reaction medium. Based on these studies, a bioprocess producing green-note aldehydes in a laboratory-scale was achieved.

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