An Environmentally Friendly Practice Used in Olive Cultivation Capable of Increasing Commercial Interest in Waste Products from Oil Processing

Autor: Alberto Ritieni, Francesco Vinale, Luigi Castaldo, Giulia Graziani, Francalisa Luisa Fedele, Andrea Sicari, Irene Dini
Přispěvatelé: Dini, Irene, Graziani, Giulia, Fedele Francesca, Luisa, Sicari, Andrea, Vinale, Francesco, Castaldo, Luigi, Ritieni, Alberto
Jazyk: angličtina
Rok vydání: 2020
Předmět:
Zdroj: Antioxidants
Volume 9
Issue 6
Antioxidants, Vol 9, Iss 466, p 466 (2020)
ISSN: 2076-3921
DOI: 10.3390/antiox9060466
Popis: In the Rural Development Plan (2014&ndash
2020), the European Commission encouraged the conversion and supported the maintenance of organic farming. Organic olive oil (bioEVOO) production involves the use of environmentally sustainable fertilizers and the recycling of olive pomace (Pom) and olive vegetation waters (VW) to reduce the environmental impact of these wastes. An ecofriendly way to recycle olive wastes is to reuse them to extract bioactive compounds. In this study, the total phenolic compounds content, their profile and dosage, the antioxidant action in oil, pomace, and vegetation water was evaluated when the Trichoderma harzianum M10 was used as a biostimulant in agriculture. Two spectrophotometric tests (2,2-diphenyl-1-picrylhydrazyl (DPPH) and 2,2&prime
azinobis (3-ethylbenzothiazoline-6-sulfonic) acid (ABTS)) evaluated the antioxidant potential of samples, a spectrophotometric method estimated total phenolic content, and an Ultra-High-Performance Liquid Chromatography (UHPLC)&ndash
Orbitrap method evaluated the phenolics profile. Our results showed that the biostimulation improved the antioxidant potential and the total concentration of phenolics in the bioEVOO and bio-pomace (bioPom) samples and mainly enhanced, among all classes of phenolic compounds, the production of the flavonoids and the secoiridoids. Moreover, they demonstrated the Trichoderma action in the mevalonate pathway to produce phenols for the first time. The decisive action of the Thricoderma on the production of phenolic compounds increases the economic value of the waste materials as a source of bioactive compounds useful for the pharmaceutical, cosmetic, and food industries.
Databáze: OpenAIRE