Yield, Quality, Antioxidants, and Mineral Composition of Traditional Italian Storage Onion Cultivars in Response to Protein Hydrolysate and Microalgae Biostimulation
Increasing interest is being devoted to environmentally friendly strategies, such as the use of plant biostimulants, to enhance crop performance and concurrently ensure food security under the perspective of sustainable management. The effects of two biostimulant formulations (protein hydrolysate an...
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2025-01-01
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| author | Alessio Vincenzo Tallarita Otilia Cristina Murariu Tomas Kopta Florin Daniel Lipșa Leonardo Gomez Eugenio Cozzolino Pasquale Lombardi Silvio Russo Gianluca Caruso |
| author_facet | Alessio Vincenzo Tallarita Otilia Cristina Murariu Tomas Kopta Florin Daniel Lipșa Leonardo Gomez Eugenio Cozzolino Pasquale Lombardi Silvio Russo Gianluca Caruso |
| author_sort | Alessio Vincenzo Tallarita |
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| description | Increasing interest is being devoted to environmentally friendly strategies, such as the use of plant biostimulants, to enhance crop performance and concurrently ensure food security under the perspective of sustainable management. The effects of two biostimulant formulations (protein hydrolysate and spirulina) on four Italian traditional storage onion cultivars (Ramata di Montoro, Rossa di Tropea, Rocca Bruna, Dorata di Parma) were investigated in Naples province (southern Italy), in terms of yield, quality, shelf-life, bioactive compounds, and mineral composition. Ramata di Montoro showed the highest levels of yield (66.4 t ha<sup>−1</sup>) and vitamin C (31.5 mg g<sup>−1</sup> d.w.) and the longest shelf-life (228 days). Significant increases in marketable yield were recorded under the applications of both protein hydrolysate (+15.5%) and spirulina (+12.4%) compared to the untreated control. The two biostimulant formulations significantly increased bulb shelf-life and the contents of polyphenols (201.4 mg gallic acid eq. 100 g<sup>−1</sup> d.w. on average vs. 158.6 of the untreated control), vitamin C (26.8 mg g<sup>−1</sup> d.w. on average vs. 22), and both lipophilic and hydrophilic antioxidant activities. These findings demonstrate the effectiveness of both protein hydrolysate and spirulina as sustainable tools for enhancing both yield and quality parameters within the frame of environmentally friendly farming management. |
| format | Article |
| id | doaj-art-7fd029ab9d7149febb42099a67485c2f |
| institution | Kabale University |
| issn | 2311-7524 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Horticulturae |
| spelling | doaj-art-7fd029ab9d7149febb42099a67485c2f2025-01-24T13:34:30ZengMDPI AGHorticulturae2311-75242025-01-011112510.3390/horticulturae11010025Yield, Quality, Antioxidants, and Mineral Composition of Traditional Italian Storage Onion Cultivars in Response to Protein Hydrolysate and Microalgae BiostimulationAlessio Vincenzo Tallarita0Otilia Cristina Murariu1Tomas Kopta2Florin Daniel Lipșa3Leonardo Gomez4Eugenio Cozzolino5Pasquale Lombardi6Silvio Russo7Gianluca Caruso8Department of Agricultural Sciences, University of Naples Federico II, Portici, 80055 Naples, ItalyDepartment of Food Technologies, ‘Ion Ionescu de la Brad’ Iasi University of Life Sciences, 700490 Iasi, RomaniaDepartment of Vegetable Growing and Floriculture, Faculty of Horticulture, Mendel University, 613 00 Brno, Czech RepublicDepartment of Food Technologies, ‘Ion Ionescu de la Brad’ Iasi University of Life Sciences, 700490 Iasi, RomaniaCentre of Novel Agricultural Products (CNAP), Department of Biology, University of York, Heslington YO10 5DD, York, UKResearch Center for Cereal and Industrial Crops, Council for Agricultural Research and Economics (CREA), 81100 Caserta, ItalyResearch Center for Vegetable and Ornamental Crops, 84098 Pontecagnano Faiano, ItalyDepartment of Agricultural Sciences, University of Naples Federico II, Portici, 80055 Naples, ItalyDepartment of Agricultural Sciences, University of Naples Federico II, Portici, 80055 Naples, ItalyIncreasing interest is being devoted to environmentally friendly strategies, such as the use of plant biostimulants, to enhance crop performance and concurrently ensure food security under the perspective of sustainable management. The effects of two biostimulant formulations (protein hydrolysate and spirulina) on four Italian traditional storage onion cultivars (Ramata di Montoro, Rossa di Tropea, Rocca Bruna, Dorata di Parma) were investigated in Naples province (southern Italy), in terms of yield, quality, shelf-life, bioactive compounds, and mineral composition. Ramata di Montoro showed the highest levels of yield (66.4 t ha<sup>−1</sup>) and vitamin C (31.5 mg g<sup>−1</sup> d.w.) and the longest shelf-life (228 days). Significant increases in marketable yield were recorded under the applications of both protein hydrolysate (+15.5%) and spirulina (+12.4%) compared to the untreated control. The two biostimulant formulations significantly increased bulb shelf-life and the contents of polyphenols (201.4 mg gallic acid eq. 100 g<sup>−1</sup> d.w. on average vs. 158.6 of the untreated control), vitamin C (26.8 mg g<sup>−1</sup> d.w. on average vs. 22), and both lipophilic and hydrophilic antioxidant activities. These findings demonstrate the effectiveness of both protein hydrolysate and spirulina as sustainable tools for enhancing both yield and quality parameters within the frame of environmentally friendly farming management.https://www.mdpi.com/2311-7524/11/1/25<i>Allium cepa</i> L.varietybiostimulantsspirulinabulb shelf-lifepolyphenols |
| spellingShingle | Alessio Vincenzo Tallarita Otilia Cristina Murariu Tomas Kopta Florin Daniel Lipșa Leonardo Gomez Eugenio Cozzolino Pasquale Lombardi Silvio Russo Gianluca Caruso Yield, Quality, Antioxidants, and Mineral Composition of Traditional Italian Storage Onion Cultivars in Response to Protein Hydrolysate and Microalgae Biostimulation Horticulturae <i>Allium cepa</i> L. variety biostimulants spirulina bulb shelf-life polyphenols |
| title | Yield, Quality, Antioxidants, and Mineral Composition of Traditional Italian Storage Onion Cultivars in Response to Protein Hydrolysate and Microalgae Biostimulation |
| title_full | Yield, Quality, Antioxidants, and Mineral Composition of Traditional Italian Storage Onion Cultivars in Response to Protein Hydrolysate and Microalgae Biostimulation |
| title_fullStr | Yield, Quality, Antioxidants, and Mineral Composition of Traditional Italian Storage Onion Cultivars in Response to Protein Hydrolysate and Microalgae Biostimulation |
| title_full_unstemmed | Yield, Quality, Antioxidants, and Mineral Composition of Traditional Italian Storage Onion Cultivars in Response to Protein Hydrolysate and Microalgae Biostimulation |
| title_short | Yield, Quality, Antioxidants, and Mineral Composition of Traditional Italian Storage Onion Cultivars in Response to Protein Hydrolysate and Microalgae Biostimulation |
| title_sort | yield quality antioxidants and mineral composition of traditional italian storage onion cultivars in response to protein hydrolysate and microalgae biostimulation |
| topic | <i>Allium cepa</i> L. variety biostimulants spirulina bulb shelf-life polyphenols |
| url | https://www.mdpi.com/2311-7524/11/1/25 |
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