Oxidative stress and mitochondrial dysfunction play an important role in the onset of neurodegenerative diseases; thus, the antioxidant use could be a promising preventive or therapeutic intervention. The food and agricultural industries generate huge quantities of by-products rich in biophenolic compounds. If, on the one hand, they represent a serious environmental problem, on the other hand, are valuable natural sources of antioxidants. In the present work, the total phenolic content and the antioxidant power of the wastewater derived from the production of four Sicilian extra virgin olive oils are shown. Four biophenols, hydroxytyrosol and tyrosol alcohols and caffeic acid (CA) and p-coumaric acids, were identified and quantified and their antioxidant ability determined. Their effects in counteracting Abeta(1-42) oligomer oxidative damage in LAN5 cell culture were investigated. Results indicated that CA was the most effective compound in counteracting the cell damages induced by Abeta(1-42) oligomers. RESUMENEl estres oxidativo y la disfuncion mitocondrial juegan un rol importante en el comienzo de ciertas enfermedades neurodegenerativas; en estos casos, el uso de antioxidantes puede ser una intervencion preventiva o terapeutica prometedora. Las industrias alimentarias y agricolas producen enormes cantidades de subproductos ricos en compuestos biofenolicos. Si bien por un lado representan un grave problema ambiental, por el otro constituyen valiosas fuentes naturales de antioxidantes. En el presente estudio se analizan el contenido fenolico total y el poder antioxidante de las aguas residuales (WW) derivadas de la produccion de cuatro aceites de oliva virgen extra (AOVE) de Sicilia. Para el efecto, Se identificaron y cuantificaron cuatro biofenoles, alcoholes hidroxitirosol (HT) y tirosol (TY), ademas de acidos cafeico (CA) y p-cumarico (CU), y se determino su capacidad antioxidante. Asimismo, se investigaron sus efectos para contrarrestar el dano oxidativo provocado por el oligomero Abeta(1-42) en cultivos celulares LAN5, constatandose que el CA fue el mas efectivo para contrarrestar el dano celular inducido por oligomeros Abeta(1-42).

The precious content of the olive mill wastewater: The protective effects of the antioxidant fraction in cell cultures

Giacomazza D;D'Andrea D;Provenzano A;Picone P;Provenzano F;Guarrasi V;Raimondo M;San Biagio PL;Passantino R;Mangione MR;Di Carlo M;Costa MA
2018

Abstract

Oxidative stress and mitochondrial dysfunction play an important role in the onset of neurodegenerative diseases; thus, the antioxidant use could be a promising preventive or therapeutic intervention. The food and agricultural industries generate huge quantities of by-products rich in biophenolic compounds. If, on the one hand, they represent a serious environmental problem, on the other hand, are valuable natural sources of antioxidants. In the present work, the total phenolic content and the antioxidant power of the wastewater derived from the production of four Sicilian extra virgin olive oils are shown. Four biophenols, hydroxytyrosol and tyrosol alcohols and caffeic acid (CA) and p-coumaric acids, were identified and quantified and their antioxidant ability determined. Their effects in counteracting Abeta(1-42) oligomer oxidative damage in LAN5 cell culture were investigated. Results indicated that CA was the most effective compound in counteracting the cell damages induced by Abeta(1-42) oligomers. RESUMENEl estres oxidativo y la disfuncion mitocondrial juegan un rol importante en el comienzo de ciertas enfermedades neurodegenerativas; en estos casos, el uso de antioxidantes puede ser una intervencion preventiva o terapeutica prometedora. Las industrias alimentarias y agricolas producen enormes cantidades de subproductos ricos en compuestos biofenolicos. Si bien por un lado representan un grave problema ambiental, por el otro constituyen valiosas fuentes naturales de antioxidantes. En el presente estudio se analizan el contenido fenolico total y el poder antioxidante de las aguas residuales (WW) derivadas de la produccion de cuatro aceites de oliva virgen extra (AOVE) de Sicilia. Para el efecto, Se identificaron y cuantificaron cuatro biofenoles, alcoholes hidroxitirosol (HT) y tirosol (TY), ademas de acidos cafeico (CA) y p-cumarico (CU), y se determino su capacidad antioxidante. Asimismo, se investigaron sus efectos para contrarrestar el dano oxidativo provocado por el oligomero Abeta(1-42) en cultivos celulares LAN5, constatandose que el CA fue el mas efectivo para contrarrestar el dano celular inducido por oligomeros Abeta(1-42).
2018
Istituto di Biofisica - IBF
Istituto di biomedicina e di immunologia molecolare - IBIM - Sede Palermo
Antioxidants
Biophenols
Neuroprotection
Olive oil mill wastewater
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/20.500.14243/370848
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