Evaluation of Morphological Changes in Grapes Coated with a Biosurfactant Extract Obtained from Corn Steep Liquor
In this work, grapes were coated with a multifunctional biosurfactant extract obtained from corn steep liquor after liquid–liquid extraction with ethyl acetate. This biosurfactant extract has been demonstrated to not only possess a surfactant capacity but also antimicrobial activity. Hence, it could...
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| Format: | Article |
| Language: | English |
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MDPI AG
2021-06-01
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| Series: | Applied Sciences |
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| Online Access: | https://www.mdpi.com/2076-3417/11/13/5904 |
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| author | Andrea Martínez-Arcos Alejandro López-Prieto Lorena Rodríguez-López Benita Pérez-Cid Xanel Vecino Ana Belén Moldes José Manuel Cruz |
| author_facet | Andrea Martínez-Arcos Alejandro López-Prieto Lorena Rodríguez-López Benita Pérez-Cid Xanel Vecino Ana Belén Moldes José Manuel Cruz |
| author_sort | Andrea Martínez-Arcos |
| collection | DOAJ |
| description | In this work, grapes were coated with a multifunctional biosurfactant extract obtained from corn steep liquor after liquid–liquid extraction with ethyl acetate. This biosurfactant extract has been demonstrated to not only possess a surfactant capacity but also antimicrobial activity. Hence, it could be an excellent preservative for fruits, as it is more biodegradable and more biocompatible than chemically synthetized preservatives. However, before applying this biosurfactant as a preservative on fruits, it is necessary to study the changes in the surface properties of fruits produced by the addition of this bioactive compound. Therefore, in this work, grapes coated with an aqueous solution containing 1 g/L of the biosurfactant extract were subjected to surface analysis using non-invasive technologies, including profilometry. 2D digital photographs of the surface and parametric roughness of grapes were obtained. They revealed that the biosurfactant extract decreased the roughness of the grape surface compared with non-coated grapes and reduced the changes in the shape of the grapes over time. Moreover, it was observed that the biosurfactant extract increased the hydrophobicity of the grape surface observing higher contact angle compared with non-coated grapes. |
| first_indexed | 2024-03-10T10:04:09Z |
| format | Article |
| id | doaj.art-fd76cad20c1c4fe28f3a162014e378e7 |
| institution | Directory Open Access Journal |
| issn | 2076-3417 |
| language | English |
| last_indexed | 2024-03-10T10:04:09Z |
| publishDate | 2021-06-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Applied Sciences |
| spelling | doaj.art-fd76cad20c1c4fe28f3a162014e378e72023-11-22T01:41:56ZengMDPI AGApplied Sciences2076-34172021-06-011113590410.3390/app11135904Evaluation of Morphological Changes in Grapes Coated with a Biosurfactant Extract Obtained from Corn Steep LiquorAndrea Martínez-Arcos0Alejandro López-Prieto1Lorena Rodríguez-López2Benita Pérez-Cid3Xanel Vecino4Ana Belén Moldes5José Manuel Cruz6CINTECX, Chemical Engineering Department, University of Vigo, 36310 Vigo, SpainCINTECX, Chemical Engineering Department, University of Vigo, 36310 Vigo, SpainCINTECX, Chemical Engineering Department, University of Vigo, 36310 Vigo, SpainCINTECX, Chemical Engineering Department, University of Vigo, 36310 Vigo, SpainCINTECX, Chemical Engineering Department, University of Vigo, 36310 Vigo, SpainCINTECX, Chemical Engineering Department, University of Vigo, 36310 Vigo, SpainCINTECX, Chemical Engineering Department, University of Vigo, 36310 Vigo, SpainIn this work, grapes were coated with a multifunctional biosurfactant extract obtained from corn steep liquor after liquid–liquid extraction with ethyl acetate. This biosurfactant extract has been demonstrated to not only possess a surfactant capacity but also antimicrobial activity. Hence, it could be an excellent preservative for fruits, as it is more biodegradable and more biocompatible than chemically synthetized preservatives. However, before applying this biosurfactant as a preservative on fruits, it is necessary to study the changes in the surface properties of fruits produced by the addition of this bioactive compound. Therefore, in this work, grapes coated with an aqueous solution containing 1 g/L of the biosurfactant extract were subjected to surface analysis using non-invasive technologies, including profilometry. 2D digital photographs of the surface and parametric roughness of grapes were obtained. They revealed that the biosurfactant extract decreased the roughness of the grape surface compared with non-coated grapes and reduced the changes in the shape of the grapes over time. Moreover, it was observed that the biosurfactant extract increased the hydrophobicity of the grape surface observing higher contact angle compared with non-coated grapes.https://www.mdpi.com/2076-3417/11/13/5904grapesbiosurfactantroughnessperimetershapecontact angle |
| spellingShingle | Andrea Martínez-Arcos Alejandro López-Prieto Lorena Rodríguez-López Benita Pérez-Cid Xanel Vecino Ana Belén Moldes José Manuel Cruz Evaluation of Morphological Changes in Grapes Coated with a Biosurfactant Extract Obtained from Corn Steep Liquor Applied Sciences grapes biosurfactant roughness perimeter shape contact angle |
| title | Evaluation of Morphological Changes in Grapes Coated with a Biosurfactant Extract Obtained from Corn Steep Liquor |
| title_full | Evaluation of Morphological Changes in Grapes Coated with a Biosurfactant Extract Obtained from Corn Steep Liquor |
| title_fullStr | Evaluation of Morphological Changes in Grapes Coated with a Biosurfactant Extract Obtained from Corn Steep Liquor |
| title_full_unstemmed | Evaluation of Morphological Changes in Grapes Coated with a Biosurfactant Extract Obtained from Corn Steep Liquor |
| title_short | Evaluation of Morphological Changes in Grapes Coated with a Biosurfactant Extract Obtained from Corn Steep Liquor |
| title_sort | evaluation of morphological changes in grapes coated with a biosurfactant extract obtained from corn steep liquor |
| topic | grapes biosurfactant roughness perimeter shape contact angle |
| url | https://www.mdpi.com/2076-3417/11/13/5904 |
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