RT Journal Article
T1 Microwave-assisted autohydrolysis of avocado seed for the recovery of antioxidant phenolics and glucose
A1 Del Castillo Llamosas, Alexandra
A1 Eibes, Gemma
A1 Ferreira Santos, Pedro Miguel
A1 Perez Perez, Alba
A1 Garcia Del Rio, Pablo
A1 Gullon Estevez, Beatriz
K1 3303.03 Procesos Químicos
K1 3303.04 Separación Química
K1 2304.19 Polisacáridos
AB This study describes the valorization of avocado seed (AS) within a green biorefinery concept using microwave-assisted autohydrolysis. After the treatment at temperatures of 150–230 ◦C for 5 min, the resulting solid and liquor were characterized. The temperature of 220 ◦C led to the simultaneous optimal values of antioxidant phenolics/flavonoids (42.15 mg GAE/g AS, 31.89 RE/g AS, respectively) and glucose + glucooligosaccharides (38.82 g/L) in the liquor. Extraction with ethyl acetate allowed the recovery of the bioactive compounds while maintaining the polysaccharides in the liquor. The extract was rich in vanillin (99.02 mg/g AS) and contained several phenolic acids and flavonoids. The solid phase and the phenolic-free liquor were subjected to enzymatic hydrolysis to produce glucose, reaching values of 9.93 and 105 g glucose/L, respectively. This work demonstrates that microwave-assisted autohydrolysis is a promising technology to obtain fermentable sugars and antioxidant phenolic compounds from avocado seeds following a biorefinery scheme.
PB Bioresource Technology
SN 09608524
YR 2023
FD 2023-10
LK http://hdl.handle.net/11093/5011
UL http://hdl.handle.net/11093/5011
LA eng
NO Bioresource Technology, 385, 129432 (2023)
NO Universidade de Vigo/CISUG
DS Investigo
RD 13-ene-2025