Danisco Sweeteners Oy

Xyrofin Oy

Suomen Xyrofin Oy

Leena Rahkila

Heikki O Heikkila

Göran Hyöky

Olli-Pekka Eroma

Marja-Leena Sarkki

Heikki Ojamo

Päivi Sarmala

Tapio Timo Viljava

Juha Veikko Nurmi

Heikki Heikkilä

Tapio Viljava

Marja Leena Sarkki

Marja Toyryla

Effective processes are provided for the production of xylitol and ethanol and other products from solutions derived from lignocellulose-containing material in biomass. The solutions can be hydrolyzed or partially hydrolyzed before being fermented with microbes. The fermented solution can be distilled and can be subsequently separated, such as, by chromatographic separation, membrane separation, etc. The recovered xylitol solution can be crystallized to provide pure xylitol crystals.

Process for the simultaneous production of xylitol and ethanol

The invention relates to a process for the simultaneous production of xylitol and ethanol from a hydrolyzed lignocellulose-containing material starting. The starting material is fermented with a yeast strain, the ethanol produced is recovered, a chromatographic separation is carried out on the remaining xylitol solution, and pure xylitol is crystallized.

A method is disclosed for the production of xylitol from a xylose and/or xylan containing material. A solution containing xylitol and other hexoses is fermented with a yeast strain capable of converting free xylose to xylitol and other free hexoses present to ethanol, with the xylitol subsequently separated by chromatographic separation means.

Method for the production of xylitol

Growing community of inventors

Espoo, Finland

Leena Rahkila