Biostimulants from food processing by-products: agronomic, quality and metabolic impacts on organic tomato (Solanum lycopersicumL.)
| Autor: | Lara Abou Chehade, Ziad Al Chami, Francesco Paolo Fanizzi, Ivana Cavoski, Sandra Angelica De Pascali |
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| Rok vydání: | 2017 |
| Předmět: |
0106 biological sciences
Titratable acid 01 natural sciences chemistry.chemical_compound Humic acid Dry matter Food science chemistry.chemical_classification Nutrition and Dietetics Vitamin C biology Chemistry business.industry food and beverages 04 agricultural and veterinary sciences biology.organism_classification Biotechnology Shoot 040103 agronomy & agriculture Food processing 0401 agriculture forestry and fisheries Solanum Citric acid business Agronomy and Crop Science 010606 plant biology & botany Food Science |
| Zdroj: | Journal of the Science of Food and Agriculture. 98:1426-1436 |
| ISSN: | 0022-5142 |
| DOI: | 10.1002/jsfa.8610 |
| Popis: | Biostimulants have recently gained increased attention due to their multiple benefits for sustainable agriculture. In this study, three food processing by-products - fennel processing residues (FPR), lemon processing residues (LPR) and brewer's spent grain (BSG) - were investigated as potential sources of biostimulants. Their aqueous extracts as individual and associated applications were assessed for their effects on agronomic, quality and metabolic performance of organic tomato in comparison to extract of humic substances (HS) and untreated control (CTRL).; Results: Only FPR extracts stimulated shoot growth and tomato dry matter content, whereas all candidates improved tomato yield. FPR and BSG increased fruit mineral content and BSG-FPR-LPR in combination enhanced titratable acidity. FPR-treated fruits had also 20% more vitamin C than CTRL, and higher phenol content was obtained in those of BSG-LPR. Fruit metabolomic profile showed the tendency of all extracts, except BSG-LPR, to increase tomato citric acid and to decrease β-glucose and methanol concentrations. The analysis revealed accordingly the indispensable role of FPR in combined applications for inducing an HS-like response in fruits.; Conclusion: The results were indicative of the biostimulant activity of these extracts and demonstrated them, particularly FPR, as promising candidates for enhancing plant productivity and fruit quality. © 2017 Society of Chemical Industry.; © 2017 Society of Chemical Industry. |
| Databáze: | OpenAIRE |
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