RT info:eu-repo/semantics/article T1 Optimization of the subcritical water treatment from sunflower by-product for producing protein and sugar extracts A1 Náthia Neves, Grazielle A1 Alonso Sánchez, Gloria Esther K1 Fermentable sugars K1 Response surface methodology K1 Protein K1 Amino acids K1 23 Química AB This study proposes the valorization of sunflower by-product (SbP) using subcritical water treatment. For this purpose,a response surface methodology in a 3× 3 Box–Behnken design was employed to study the effect of temperature (100–150 °C), extraction time (5–25 min), and solvent-to-feed ratio (10–20 g bidistilled water/g SbP) on the water-solublecompounds. The highest amount of glucose (5.7-mg/g raw material) and xylose (13.5-mg/g raw material) was obtainedat 150 °C and solvent-to-feed ratio of 15 after 25 min of extraction. The highest amount of protein (133.5-mg/g rawmaterial) was obtained at 150 °C and solvent-to-feed ratio of 20 after 15 min of extraction. The selected temperatureconditions did not promote the formation of final degradation products such as furfural and 5-hydroxymethylfurfural(HMF). The extracts obtained in this study showed simultaneous recovery of free monomeric sugars that could be usedfor bioenergy or biochemical, proteins that could be used for food and pharmaceutical industries and phenolic compoundsthat could be used for food and nutraceutical applications. PB Springer SN 2190-6815 YR 2022 FD 2022 LK https://uvadoc.uva.es/handle/10324/52258 UL https://uvadoc.uva.es/handle/10324/52258 LA eng NO Biomass Conversion and Biorefinery, 2022. NO Producción Científica DS UVaDOC RD 27-abr-2024