Polyphenol Profile in Manzanilla Table Olives As Affected by Water Deficit during Specific Phenological Stages and Spanish-Style Processing
| Autor: | Lucía Sánchez-Rodríguez, Aneta Wojdyło, Marina Cano-Lamadrid, Ángel A. Carbonell-Barrachina, Francisca Hernández, Esther Sendra |
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| Rok vydání: | 2018 |
| Předmět: |
0106 biological sciences
Agricultural Irrigation Food Handling Deficit irrigation Biology 01 natural sciences Water consumption Water deficit chemistry.chemical_compound Oleuropein Olea Cultivar Phenology 010401 analytical chemistry Polyphenols Water General Chemistry Crop Production 0104 chemical sciences Olive trees Horticulture chemistry Spain Polyphenol Fruit Fermentation General Agricultural and Biological Sciences 010606 plant biology & botany |
| Zdroj: | Journal of Agricultural and Food Chemistry. 67:661-670 |
| ISSN: | 1520-5118 0021-8561 |
| Popis: | Reducing water consumption on agriculture is a worldwide goal toward sustainability. In this scenario, two experiments of regulated deficit irrigation (RDI) were carried out on olive trees, cultivar Manzanilla. With regard to experiment A, three RDI techniques were applied during the olive pit hardening period (stage II), while in experiment B, two RDI treatments were applied during the rehydration phase (stage III). Table olives under RDI are so-called hydroSOStainable. The effect of water deficit and Spanish-style processing was studied on the polyphenol profile, antioxidant capacity, and total polyphenol content (TPC) of both raw olives (RO) and table olives (TO). The TPC decreased after processing of TO. It could be due to osmotic mechanisms. However, many individual polyphenols, such as oleuropein (main polyphenol) or oleoside diglucoside, increased their concentrations in hydroSOStainable TO. Additionally, the TPC content was correlated to the phenological stage of the fruit when the stress is applied. A moderate stress during pit hardening and an intense stress during the rehydration phase were the treatments that best improved the polyphenol profile. |
| Databáze: | OpenAIRE |
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