Work

Advanced recovery of bioactive polyphenols: integrated optimization of drying and green extraction for avocado seed by-products

Year: 2025

Type: article

Abstract: Response surface methodology using a central composite design was applied to optimize the accelerated solvent extraction (ASE) of phenolic compounds from avocado seed and seed coat by-products. The optimal extraction conditions for both matrices were achieved at 200 °C using as extractant solvent a mixture of ethanol:water (50:50, v/v). Additionally, the drying process was optimized for avocado seed samples at different temperatures (45, 55, 65, 75, and 85 °C). Changes in the phenolic profiles during the drying and extraction processed were monitorized using HPLC-TOF-MS. A total of 42 and 52 phenolic compounds were individually identified and quantified in avocado seed and seed coat, respectively. The optimal drying temperature for avocado seed was 85 °C. In contrast, the seed coat exhibited different optimal temperatures depending on the phenolic group under research, with 75 °C being the most favourable for the majority of compounds evaluated.

Source: Food Chemistry X

DOI: 10.1016/j.fochx.2025.103216

Authors: Jorge G. Figueroa, Isabel Borrás-Linares, Jesús Lozano-Sánchez, Rosa Quirantes-Piné, Antonio Segura-Carretero

Institutions: Universidad Técnica Particular de Loja, Universidad de Granada

Language: English

Topic: Phytochemicals and Antioxidant Activities

Subfield: Biochemistry

Field: Medicine

Domain: Health Sciences

SDGs: Zero hunger, Responsible consumption and production

Open Access status: gold

Estimated APC paid: $2,330