Acid Hydrothermal Amendment of Grape Wine Pomace: Enhancement of Phenol and Carbohydrate Co-Solubilization
نویسندگان
چکیده
Byproducts from the winery industry contain many bioactive compounds that are considered high-value-added compounds. White grape pomace (GP) is rich in carbohydrates; consequently, it can be used as a raw material for subsequent bioprocesses. In present study, low-temperature hydrothermal treatments were carried out using different operational conditions regarding temperature (65–95 °C), time (120–240 min), and sulfuric acid addition at various concentrations (5–15% v/v). The results showed by of 65 °C, period 120 min, 15% (v/v) H2SO4, was possible to obtain liquid phase phenols carbohydrates, with total phenol corresponding 2113 ± 140 mg gallic acid/kg GP composed mainly 3-hydroxytyrosol (1330 22 mg/kg GP). parallel, carbohydrate solubilization reached 245 g glucose/kg GP. These demonstrate promising potential hydrothermally treated biorefinery processes.
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ژورنال
عنوان ژورنال: Agronomy
سال: 2023
ISSN: ['2156-3276', '0065-4663']
DOI: https://doi.org/10.3390/agronomy13061501