Improving Olive Leaf Phenolic Extraction with Pulsed Electric Field Technology Pre-Treatment DOI Creative Commons
María del Carmen Razola‐Díaz, Robert Sevenich, Oliver Schlüter

и другие.

Foods, Год журнала: 2025, Номер 14(3), С. 368 - 368

Опубликована: Янв. 23, 2025

The olive leaf is one of the main by-products from oil industry. This by-product a rich source phenolic compounds that have been shown to possess beneficial health activities, which are due in part their antioxidant activities. Therefore, revaluation this would be great importance for food For reason, study focuses on pretreatment leaves with technology based use pulsed electric fields (PEF) and following extraction by ultrasounds order obtain an extract enriched compounds. A Box-Behnken design 15 experiments three independent factors has carried out: field strength (kV/cm), frequency (Hz) total treatment time (s). response variables were sum compounds, hydroxytyrosol oleuropein measured HPLC-MS-ESI-TOF activity DPPH. validity experimental was confirmed ANOVA optimal conditions established using surface methodology combination desirability function. PEF 0.6 kV/cm at 90 Hz 11 s, allowed obtaining 26.8, 21.7 15.6% higher contents hydroxytyrosol, respectively, compared non-treated sample PEF. DPPH increased significantly 32.3%. data pre-treatment under these proven effective improving leaves.

Язык: Английский

Improving Olive Leaf Phenolic Extraction with Pulsed Electric Field Technology Pre-Treatment DOI Creative Commons
María del Carmen Razola‐Díaz, Robert Sevenich, Oliver Schlüter

и другие.

Foods, Год журнала: 2025, Номер 14(3), С. 368 - 368

Опубликована: Янв. 23, 2025

The olive leaf is one of the main by-products from oil industry. This by-product a rich source phenolic compounds that have been shown to possess beneficial health activities, which are due in part their antioxidant activities. Therefore, revaluation this would be great importance for food For reason, study focuses on pretreatment leaves with technology based use pulsed electric fields (PEF) and following extraction by ultrasounds order obtain an extract enriched compounds. A Box-Behnken design 15 experiments three independent factors has carried out: field strength (kV/cm), frequency (Hz) total treatment time (s). response variables were sum compounds, hydroxytyrosol oleuropein measured HPLC-MS-ESI-TOF activity DPPH. validity experimental was confirmed ANOVA optimal conditions established using surface methodology combination desirability function. PEF 0.6 kV/cm at 90 Hz 11 s, allowed obtaining 26.8, 21.7 15.6% higher contents hydroxytyrosol, respectively, compared non-treated sample PEF. DPPH increased significantly 32.3%. data pre-treatment under these proven effective improving leaves.

Язык: Английский

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