Thermal Treatment to Obtain 5-Hydroxymethyl Furfural , Furfural and Phenolic Compounds from Vinasse Waste from IAgave/I

• Published in: Molecules (Basel, Switzerland) Vol. 28; no. 3
• Main Authors: Lorenzo-Santiago, Miguel Angel, Rodríguez-Campos, Jacobo, Rendón-Villalobos, Rodolfo, García-Hernández, Edgar, Vallejo-Cardona, Alba Adriana, Contreras-Ramos, Silvia Maribel
• Format: Journal Article
• Language: English
• Published: MDPI AG 01.01.2023
• Subjects: Agave; Composition; Environmental aspects; Genetic aspects; Growth; Hydrolysis; Methods; Phenols; Mexico
• ISSN: 1420-3049; 1420-3049
• DOI: 10.3390/molecules28031063

Vinasses represent important final disposal problems due to their physical-chemical composition. This work analyzed the composition of tequila vinasses and increased 5-hydroxymethylfurfural, furfural, and phenolic compounds using thermal hydrolysis with hydrogen peroxide as a catalyst. A statistical Taguchi design was used, and a UPLC-MS (XEVO TQS Micro) analysis determined the presence and increase of the components. The treatment at 130 °C, 40 min, and 0.5% of catalyst presented the highest increase for 5-HMF (127 mg/L), furfural (3.07 mg/L), and phenol compounds as chlorogenic (0.36 mg/L), and vanillic acid (2.75 mg/L). Additionally, the highest removal of total sugars (57.3%), sucrose (99.3%), and COD (32.9%). For the treatment T130:30m:0P the syringic (0.74 mg/L) and coumaric (0.013 mg/L) acids obtained the highest increase, and the treatment T120:30m:1P increased 3-hydroxybenzoic (1.30 mg/L) and sinapic (0.06 mg/L) acid. The revaluation of vinasses through thermal treatments provides guidelines to reduce the impact generated on the environment.