Intensification of Hydrolysis Treatment of Waste Plantain Peels Using Ultrasonic Waves for Enhanced Production of Reducing Sugars and Bioethanol
Year: 2025
Type: article
Abstract: This work focuses on enhancing hydrolysis and bioethanol production from waste plantain peels by using ultrasound acoustic cavitation, comparing its effectiveness to that of hot-acid hydrolysis (HAH) and enzymatic hydrolysis (EH). Statistical response surface methodology (RSM) was employed to examine the enhancement of ultrasonic aided-dilute acid hydrolysis (UADAH) and HAH parameters for the extraction of reducing sugars. The highest reducing sugar yield was obtained as 166.89 ± 0.75 mg/g, 115.03 ± 0.87 mg/g and 131.04 ± 0.29 mg/g from UADAH, HAH and EH respectively. Ultrasound cavitation enhanced the reducing sugar yield with a shorter processing time of 46 min. Notably, the processing time required for UADAH method was reduced threefold and twenty-fold compared to that of HAH and EH, respectively. Also, the UADAH process resulted in a maximum bioethanol yield of 76%. Therefore, ultrasonic irradiation is a promising technology for 2G biofuel production from waste plantain peels owing to its effectiveness in attaining maximum yield within a shorter processing time and with minimal solvent usage.
DOI: 10.3311/ppch.40039
Authors: Anbarasi Karunanithi, Jeeva Senrayan
Institutions: Anna University, Chennai, CPCL Polytechnic College
Language: English
Subfield: Biomedical Engineering
Field: Engineering
Domain: Physical Sciences
Open Access status: diamond
OpenAlex ID: W4410901935