Water as a Solvent of Election for Obtaining Oleuropein-Rich Extracts from Olive (Olea europaea) Leaves
| Autor: | Giovanni Spagna, Rosa Palmeri, Lucia Parafati, Elisa Sperlinga, Aldo Todaro, Laura Siracusa, Julieta Ines Monteleone |
|---|---|
| Přispěvatelé: | Monteleone J.I., Sperlinga E., Siracusa L., Spagna G., Parafati L., Todaro A., Palmeri R. |
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
Oxygen radical absorbance capacity
DPPH radical scavenging activity 01 natural sciences aqueous extraction lcsh:Agriculture chemistry.chemical_compound 0404 agricultural biotechnology Olive leaf Oleuropein Phenols Food science Olea europaea biology 010401 analytical chemistry Extraction (chemistry) lcsh:S 04 agricultural and veterinary sciences biology.organism_classification 040401 food science 0104 chemical sciences chemistry Polyphenol Olea bioactive compounds recovery oleuropein Agronomy and Crop Science |
| Zdroj: | Agronomy, Vol 11, Iss 465, p 465 (2021) Agronomy Volume 11 Issue 3 Agronomy (Basel) 11 (2021). doi:10.3390/agronomy11030465 info:cnr-pdr/source/autori:Monteleone, Julieta Ines; Sperlinga, Elisa; Siracusa, Laura; Spagna, Giovanni; Parafati, Lucia; Todaro, Aldo; Palmeri, Rosa/titolo:Water as a solvent of election for obtaining oleuropein-rich extracts from olive (Olea europaea) leaves/doi:10.3390%2Fagronomy11030465/rivista:Agronomy (Basel)/anno:2021/pagina_da:/pagina_a:/intervallo_pagine:/volume:11 |
| ISSN: | 2073-4395 |
| Popis: | Leaves from Olea europaea represent one of the main by-products of the olive oil industry, containing a plethora of bioactive compounds with several promising activities for human health. An organic solvent-free extraction method was developed for the recovery of olive leaf phenols, which obtained an extract containing oleuropein in high amounts. A comparison of various extraction media is reported, together with the total phenolic content, DPPH (2,2-Diphenyl-1-picrylhydrazyl) content, ORAC (oxygen radical absorbance capacity), and polyphenol oxidase activity of the corresponding extracts. The polyphenol profiles and content of the most representative extracts have also been studied. Extraction solvent and temperature significantly influenced the phenolic content and antioxidant activity of the extracts, with hot water representing the solvent of election for the extraction of bioactive compounds from this matrix. All the extracts obtained showed reasonably high total phenol content (TPC) and good DPPH radical scavenging activity among them, the water extract is characterized by desirable traits and could be used for many industrial applications and human consumption. |
| Databáze: | OpenAIRE |
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