Details

Autor(en) / Beteiligte

• Hernoux, Audrey
• Lévêque, Jean-Marc
• Lassi, Ulla
• Molina-Boisseau, Sonia
• Marais, Marie-France

Titel

Conversion of a non-water soluble potato starch waste into reducing sugars under non-conventional technologies

Ist Teil von

• Carbohydrate polymers, 2013-02, Vol.92 (2), p.2065-2074

Ort / Verlag

Kidlington: Elsevier Ltd

Erscheinungsjahr

2013

Quelle

MEDLINE

Beschreibungen/Notizen

• ► Depolymerisation of starch-based industrial waste into reducing sugars. ► Valorisation of industrial waste into high value-added chemicals. ► Utilisation of non-conventional technologies – low and high ultrasonic frequencies and microwave irradiations. In this exploratory work, the comparison of the utilisation of different non-conventional technologies (ultrasound and microwave irradiations) for the depolymerisation of a complex industrial starch-based waste into reducing sugars was investigated. Reducing sugars could then be converted into higher value-added compounds such as higher alcohols. The experiments were performed on three different starting materials named as ‘Potato flour’, ‘Wet potato sludge’ and ‘Dry potato sludge’. The conversion of ‘Potato flour’ into reducing sugars reached in acidic conditions 61% within an hour under microwave irradiation, 70% and 84% within 120min under low and high frequency ultrasonic irradiation, respectively.