RT Journal Article
T1 Evaluation of morphological changes in grapes coated with a biosurfactant extract obtained from corn steep liquor
A1 Martinez Arcos, Andrea
A1 Lopez Prieto, Alejandro
A1 Rodríguez López, Lorena
A1 Pérez Cid, Benita
A1 Vecino Bello, Xanel
A1 Moldes Menduiña, Ana Belén
A1 Cruz Freire, José Manuel
K1 2302 Bioquímica
K1 3303 Ingeniería y Tecnología Químicas
K1 3309.13 Conservación de Alimentos
AB 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.
PB Applied Sciences
SN 20763417
YR 2021
FD 2021-06-25
LK http://hdl.handle.net/11093/2561
UL http://hdl.handle.net/11093/2561
LA eng
NO Applied Sciences, 11(13): 5904 (2021)
NO Ministerio de Economía y Competitividad | Ref. RTI2018-093610-B-100
DS Investigo
RD 13-ene-2025