PROCESS FOR CONVERSION OF PENTOSE CONTAINING SUBSTRATE

摘要

The invention related to a process for the conversion of pentose containing substrate in a reactor into fermentation product using a microorganism that can convert pentose, wherein the substrate is toxic to the microorganism, comprising the following steps: a) contact the substrate with the microorganism wherein the substrate is diluted and a broth is formed; b) remove or reduce one or more toxins from the broth by growing the microorganism until a detoxified broth is obtained; c) keep at least part of detoxified broth in the reactor, and d) optionally repeat steps a), b) and c).