The PHENOLEO project or how to separate and add-value to phenolic compounds present in rapeseed and sunflower meals

Abstract

Rapeseed and sunflower meal are mainly used as animal feed but they can also be considered as a potential source of bioactive phenolic compounds. However, the desolventization/toasting processes that are needed to produce these meals might influence concentration and chemical structure of phenolic compounds, and change their bioactive properties. Moreover, the recovery processes of these molecules from meals are based on the use of solvent that generates effluents and might affect the integrity of the other constituents of the meals. Knowing this, the PHENOLEO project, funded by the SAS PIVERT, was a research program based on the biorefinery of rapeseed and sunflower meals that aimed to develop new routes of valorization of these materials mostly by the separation and valorization of their simple phenolic compounds. Thus, we decided to focus this study on the impact of the desolventization process on the biochemical composition of meals, the separation process of their simple phenolic compounds, the production of phenolic acids from meals and the potential valorization routes of the phenolic fraction.

Response Surface Methodology Applied to the Optimization of Phenolic Compound Extraction from Brassica

“…Most studies have used RSM to model and/or predict responses. A mixture design was also used to determine the composition of an extraction solvent from three pure solvents; a simplex centroid mixture was carried out [3]. Some studies model responses using first order polynomial equations.…”

“…For this, separation processes will have to be implemented and optimized. Thus, maximizing the extraction of phenolic compounds has become a topic of interest which would improve the profitability of crops and by-products resulting from their industrial transformation [3].…”

Technological challenges in oilseed crushing and refining

“…The challenges also imply the need to develop a system for the recovery of the co-products, effluent and waste from the agribusiness sector, by converting them into chemical molecules used to create new materials and products. (Laguna et al, 2020) By creating a model in which the biodegradable organic carbon can be reused to produce materials is the challenge for our industry who then will be able to release on the market new chemical products derived from the recovery of products from the agricultural sectors for industrial and pharmaceutical applications, adding value to the oilseeds processing industry.…”

Value-Added Dietary Fiber Concentrate Obtained as Waste after Protein Isolation from Ethanol-Treated Sunflower Meal

“…In general, the presence of phenols lowers the value of the sunflower meal as a feed ingredient or a raw material for protein isolation due to interference with protein palatability and digestibility [7]. Due to the high content of phenols in the sunflower meal [8]), their reduction can turn into a successful approach for the preparation of phenol-rich products with valuable functional properties while providing suitable material for protein isolation [9][10][11].…”