Edible Coatings Enhance Storability and Preserve Quality of Kiwiberry (<i>Actinidia arguta</i> L.) cv. Ken’s Red
Kiwiberries, an emerging fruit variety with increasing consumer demand, face significant commercialization challenges due to their short shelf life. This study evaluates the effectiveness of edible alginate-based coatings in extending the shelf life of kiwiberries. Two emulsion types—coarse (Coarse)...
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MDPI AG
2025-01-01
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| Series: | Horticulturae |
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| Online Access: | https://www.mdpi.com/2311-7524/11/1/105 |
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| author | Adriana C. Guerreiro Custódia Gago Dário Passos Jaime Martins Sandra Cruz Fernão Veloso Rui Guerra Maria D. Antunes |
| author_facet | Adriana C. Guerreiro Custódia Gago Dário Passos Jaime Martins Sandra Cruz Fernão Veloso Rui Guerra Maria D. Antunes |
| author_sort | Adriana C. Guerreiro |
| collection | DOAJ |
| description | Kiwiberries, an emerging fruit variety with increasing consumer demand, face significant commercialization challenges due to their short shelf life. This study evaluates the effectiveness of edible alginate-based coatings in extending the shelf life of kiwiberries. Two emulsion types—coarse (Coarse) and nanoemulsions (Nano)—and two application methods—spraying (Spray) and dipping (Dip)—were tested. Additionally, the use of visible/near-infrared (Vis-NIR) spectroscopy for non-destructive quality monitoring was explored. Coatings were prepared with 2% (<i>w</i>/<i>v</i>) alginate (SAlg) enriched with eugenol (Eg) and citral (Ct) at their minimum inhibitory concentrations (MICs) of 0.10% and 0.15%, respectively, as well as at double these concentrations. This resulted in a total of ten different treatments. The fruits were stored at approximately 5 °C, with evaluations conducted after 5 days, 2 weeks, and 4 weeks. Quality parameters, including color, firmness, soluble solid content (SSC), dry matter, weight loss, decay, total phenolic content (TPC), flavonoids, DPPH, FRAP, and malondialdehyde (MDA) levels, were analyzed. Over the storage period, color and SSC increased, while firmness decreased. Weight loss and MDA levels showed the most significant changes, particularly in treatments with higher essential oil concentrations. Notably, treatments such as SAlg Spray, SAlg Dip, SAlg Ct 0.15 + Eg 0.1 Nano Spray, SAlg Ct 0.15 + Eg 0.1 Nano Dip, and SAlg Ct 0.15 + Eg 0.1 Coarse Dip demonstrated superior preservation of kiwiberry quality. Moreover, Vis-NIR spectroscopy proved valuable for distinguishing between coating treatments, highlighting its potential for non-destructive quality assessment. |
| format | Article |
| id | doaj-art-1b9bb78e38394dacb1340163678501ce |
| institution | Kabale University |
| issn | 2311-7524 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Horticulturae |
| spelling | doaj-art-1b9bb78e38394dacb1340163678501ce2025-01-24T13:34:47ZengMDPI AGHorticulturae2311-75242025-01-0111110510.3390/horticulturae11010105Edible Coatings Enhance Storability and Preserve Quality of Kiwiberry (<i>Actinidia arguta</i> L.) cv. Ken’s RedAdriana C. Guerreiro0Custódia Gago1Dário Passos2Jaime Martins3Sandra Cruz4Fernão Veloso5Rui Guerra6Maria D. Antunes7CEOT—Centre for Electronics, Optoelectronics and Telecommunications, Faculdade de Ciências e Tecnologia, Edf. 2, Campus Gambelas, 8005-139 Faro, PortugalMED—Mediterranean Institute for Agriculture, Environment and Development & CHANGE—Global Change and Sustainability Institute, FCT, Universidade do Algarve, Edf. 8, Campus de Gambelas, 8005-139 Faro, PortugalCEOT—Centre for Electronics, Optoelectronics and Telecommunications, Faculdade de Ciências e Tecnologia, Edf. 2, Campus Gambelas, 8005-139 Faro, PortugalCEOT—Centre for Electronics, Optoelectronics and Telecommunications, Faculdade de Ciências e Tecnologia, Edf. 2, Campus Gambelas, 8005-139 Faro, PortugalCEOT—Centre for Electronics, Optoelectronics and Telecommunications, Faculdade de Ciências e Tecnologia, Edf. 2, Campus Gambelas, 8005-139 Faro, PortugalFrutas Douro ao Minho, Lugar da Gandra, Briteiros St Estevão e Donim, 4805-446 Guimarães, PortugalCEOT—Centre for Electronics, Optoelectronics and Telecommunications, Faculdade de Ciências e Tecnologia, Edf. 2, Campus Gambelas, 8005-139 Faro, PortugalMED—Mediterranean Institute for Agriculture, Environment and Development & CHANGE—Global Change and Sustainability Institute, FCT, Universidade do Algarve, Edf. 8, Campus de Gambelas, 8005-139 Faro, PortugalKiwiberries, an emerging fruit variety with increasing consumer demand, face significant commercialization challenges due to their short shelf life. This study evaluates the effectiveness of edible alginate-based coatings in extending the shelf life of kiwiberries. Two emulsion types—coarse (Coarse) and nanoemulsions (Nano)—and two application methods—spraying (Spray) and dipping (Dip)—were tested. Additionally, the use of visible/near-infrared (Vis-NIR) spectroscopy for non-destructive quality monitoring was explored. Coatings were prepared with 2% (<i>w</i>/<i>v</i>) alginate (SAlg) enriched with eugenol (Eg) and citral (Ct) at their minimum inhibitory concentrations (MICs) of 0.10% and 0.15%, respectively, as well as at double these concentrations. This resulted in a total of ten different treatments. The fruits were stored at approximately 5 °C, with evaluations conducted after 5 days, 2 weeks, and 4 weeks. Quality parameters, including color, firmness, soluble solid content (SSC), dry matter, weight loss, decay, total phenolic content (TPC), flavonoids, DPPH, FRAP, and malondialdehyde (MDA) levels, were analyzed. Over the storage period, color and SSC increased, while firmness decreased. Weight loss and MDA levels showed the most significant changes, particularly in treatments with higher essential oil concentrations. Notably, treatments such as SAlg Spray, SAlg Dip, SAlg Ct 0.15 + Eg 0.1 Nano Spray, SAlg Ct 0.15 + Eg 0.1 Nano Dip, and SAlg Ct 0.15 + Eg 0.1 Coarse Dip demonstrated superior preservation of kiwiberry quality. Moreover, Vis-NIR spectroscopy proved valuable for distinguishing between coating treatments, highlighting its potential for non-destructive quality assessment.https://www.mdpi.com/2311-7524/11/1/105hardy kiwisprayingdippingnanoemulsionscoarse emulsionsVis-NIR |
| spellingShingle | Adriana C. Guerreiro Custódia Gago Dário Passos Jaime Martins Sandra Cruz Fernão Veloso Rui Guerra Maria D. Antunes Edible Coatings Enhance Storability and Preserve Quality of Kiwiberry (<i>Actinidia arguta</i> L.) cv. Ken’s Red Horticulturae hardy kiwi spraying dipping nanoemulsions coarse emulsions Vis-NIR |
| title | Edible Coatings Enhance Storability and Preserve Quality of Kiwiberry (<i>Actinidia arguta</i> L.) cv. Ken’s Red |
| title_full | Edible Coatings Enhance Storability and Preserve Quality of Kiwiberry (<i>Actinidia arguta</i> L.) cv. Ken’s Red |
| title_fullStr | Edible Coatings Enhance Storability and Preserve Quality of Kiwiberry (<i>Actinidia arguta</i> L.) cv. Ken’s Red |
| title_full_unstemmed | Edible Coatings Enhance Storability and Preserve Quality of Kiwiberry (<i>Actinidia arguta</i> L.) cv. Ken’s Red |
| title_short | Edible Coatings Enhance Storability and Preserve Quality of Kiwiberry (<i>Actinidia arguta</i> L.) cv. Ken’s Red |
| title_sort | edible coatings enhance storability and preserve quality of kiwiberry i actinidia arguta i l cv ken s red |
| topic | hardy kiwi spraying dipping nanoemulsions coarse emulsions Vis-NIR |
| url | https://www.mdpi.com/2311-7524/11/1/105 |
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