Valorization of oil industry wastes: Extraction of phenolic compounds from different sunflower hull fractions (Helianthus annuus L.)

DAIANA FANESI; SUSANA NOLASCO; MARCELA RODRIGUEZ

TECNOCIENCIA CHIHUAHUA

Universidad Autónoma de Chihuahua

Lugar: Chihuahua; Año: 2022

The recovery of antioxidant compounds present in sunflower hulls, a waste byproduct of the oilextraction process, can be of industrial and environmental interest. The objective of the presentwork was to determine different operating conditions for the extraction of phenolic compoundsfrom hulls oil sunflower seeds, using water at 90 °C and mechanical agitation. To select theexperimental conditions, the hulls of a black hull sunflower hybrid (SPS3120) were analyzed, fiveparticle sizes (>0.84, 0.84 to 0.42, 0.42 to 0.25, 0.25 to 0.149, 0.25 mm. By processing approximately 23-24 % of thesunflower hull (≤0.25 mm particle-size fraction), it was possible to obtain a minimum of 59 and62% of tota