Towards a green and sustainable fruit waste valorisation model in Brazil: optimisation of homogenizer-assisted extraction of bioactive compounds from mango waste using a response surface methodology

• Published in: Pure and applied chemistry Vol. 92; no. 4; pp. 617 - 629
• Main Authors: Zuin, Vânia G., Segatto, Mateus L., Zanotti, Karine
• Format: Journal Article
• Language: English
• Published: Berlin De Gruyter 01.04.2020; Walter de Gruyter GmbH
• Subjects: bioactive compounds; Biological activity; chemometrics; Economic analysis; Economic models; Energy consumption; Ethanol; green and sustainable extraction; Homogenizers; ICGC-8; mango biorefinery; Mangoes; nutraceuticals; Optimization; Refining; Response surface methodology; waste valorization; Brazil
• ISSN: 0033-4545; 1365-3075
• DOI: 10.1515/pac-2019-1001

Food waste valorisation is currently at the core of discussions and development of future economic models which, allied to the application of green and sustainable technologies, offers a viable alternative to shift industrial practices towards a circular bioeconomy. The feasibility and technological possibilities based on an integrated mango waste biorefinery concept, focusing on the extraction of bioactive compounds, are discussed in this paper. Additionally, a statistically robust methodology is presented as a green approach to optimise the variables of a sustainable, low time and energy consumption extraction technique (homogenizer-assisted extraction). Maximum concentrations of the bioactive compounds were obtained in similar values of parameters ethanol/water concentration (67.73 and 70.11 %), sample/solvent ratio (29.33 and 28.17 %) and time (4.47 and 5.00 min) for mangiferin (354.4 mg/kg DW) and hyperoside (258.7 mg/kg DW), respectively. These results demonstrated the efficiency of the proposed green and sustainable method to obtain bioactive compounds from a very common and significant tropical fruit waste in Brazil, based on an integrated mango biorefinery concept.