Novel strategies for valorizing red araça pomace: Cyanidin-rich extracts recovery and sustainable bioenergy production

Author(s):Show less -

Mussagy, Cassamo U. ; Hucke, Henua U. ; Farias, Fabiane O. ; Tretin, Julia ; Mesquita, Leonardo M. de Souza ; Rostagno, Mauricio A. ; Valette, Jeremy ; Ahmad, Mushtaq ; Mustafa, Ahmad ; Raghavan, Vijaya ; Sangare, Diakaridia

• Document type: Journal article
• Source: PROCESS SAFETY AND ENVIRONMENTAL PROTECTION; v. 195, p. 11-pg., 2025-01-16.

Abstract

This study investigates the valorization of red ara & ccedil;a<acute accent> pomace (RAP) from Easter Island (Rapa Nui) for extracting cyanidin-rich antioxidants and generating bioenergy. Using a UHPLC-PDA system, we characterized the extractable pigments, optimizing extraction conditions with bio-based solvents to achieve a maximum yield of 2.70 mg/L of cyanidin-3-O-glucoside, which constituted approximately 98 % of the extract. The antioxidant activity was evaluated using the DPPH and FRAP assay, revealing a strong antioxidant capacity. Additionally, pyrolysis of the residual colorless biomass indicated significant energy recovery potential, with thermodynamic analysis showing an energy difference of less than 4.67 kJ/mol between activation energy and enthalpy. This pioneering research highlights the dual benefits of utilizing RAP for health-promoting compounds while addressing waste management through sustainable bioenergy solutions. (AU)

• FAPESP's process: 20/08421-9 - Application of non-volatile alternative solvents to create sustainable two-dimensional and integrated platforms for harnessing agro-industrial waste from jaboticaba and pomegranate fruits
• Grantee: Leonardo Mendes de Souza Mesquita
• Support Opportunities: Scholarships in Brazil - Post-Doctoral
• FAPESP's process: 18/14582-5 - Development of a two-dimensional extraction, separation and analysis system for evaluating the bioactivity of phytochemicals
• Grantee: Maurício Ariel Rostagno
• Support Opportunities: Research Grants - Young Investigators Grants - Phase 2
• FAPESP's process: 19/13496-0 - Multi user equipment approved in grant 2018/14582-5: ultra-high pressure liquid chromatography system (UHPLC), composed by a quaternary pump, autoinjector, oven with selection valve and detector (PDA)
• Grantee: Maurício Ariel Rostagno
• Support Opportunities: Multi-user Equipment Program