Bioethanol Production from A-Starch Milk and B-Starch Milk as Intermediates of Industrial Wet-Milling Wheat Processing

• DOI: 10.3390/fermentation10030144
• Publication Date: 2024-03-04T09:36:21Z
• Authors: Aleksandra Katanski; Vesna Vučurović; Damjan Vučurović; Bojana Bajić; Žana Šaranović; Zita Šereš; Siniša Dodić
• Keywords: Wet-milling

The present work highlights the advances of integrated starch and bioethanol production as an attractive industrial solution for complex wheat exploitation to value-added products focusing on increased profitability. Bioethanol is conventionally produced by dry-milling grain fermenting sugars obtained hydrolysis starch, while unused nonfermentable kernel compounds remain in stillage effluents. On other hand, wet-milling flour enables processing simultaneous gluten, fiber. intermediates are A-starch milk, containing mainly large granules (diameter > 10 μm), B-starch small < μm). study investigates different procedures using commercial amylase from milk batch fermentation distillers’ yeast Saccharomyces cerevisiae Thermosacc®. Cold with liquefaction saccharification at 65 °C, a pH 4.5, duration 60 min was most efficient energy-saving pretreatment reaching high conversion rate ethanol 93% both investigated substrates. A process design cost model developed SuperPro Designer® v.11 (Intelligen Inc., Scotch Plains, NJ, USA) software.