title: Conversion of a non-water soluble potato starch waste into reducing sugars under non-conventional technologies.
abstract: 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 120 min under low and high frequency ultrasonic irradiation, respectively.
authors: Laboratoire de Chimie Moléculaire et Environnement, Université de Savoie, 73376 Le Bourget du Lac Cedex, France. audrey.hernoux@chydenius.fi
authors: Audrey
authors: A
authors: Hernoux
authors: Jean-Marc
authors: JM
authors: Lévêque
authors: Ulla
authors: U
authors: Lassi
authors: Sonia
authors: S
authors: Molina-Boisseau
authors: Marie-France
authors: MF
authors: Marais
mesh_terms: D000438:Alcohols / Q000737:chemistry; D007220:Industrial Waste; D055595:Mechanical Phenomena; D008872:Microwaves; D011198:Solanum tuberosum / Q000737:chemistry*; D012995:Solubility; D013213:Starch / Q000737:chemistry*; D014465:Ultrasonics / Q000295:instrumentation / Q000379:methods*; D014867:Water / Q000737:chemistry*
chemical_list: D000438:Alcohols; D007220:Industrial Waste; D014867:Water; D013213:Starch