RT Journal Article
T1 Phytochemical Compounds as Cleaning Agents on Granite Colonized by Phototrophic Subaerial Biofilms
A1 Genova, Chiara
A1 Fuentes Alonso, Elsa
A1 Sanmartín Sánchez, Patricia
A1 Favero, Gabriele
A1 Prieto Lamas, Beatriz
K1 Essential oils (EOs)
K1 Essential oil active components (EO-ACs)
K1 Biodeterioration
K1 Granite
K1 Non-destructive techniques
K1 Algae
K1 Antibiofilm
K1 Green methods
AB The society has become increasingly interested in using natural products over chemicals for cleaning activities. In this study, the cleaning potential of formulations embedded in a hydrogel matrix and composed respectively of essential oils (EOs) of Origanum vulgare, Thymus vulgaris, and Calamintha nepeta, and their respective main active components (EO-ACs), viz., Carvacrol, Thymol, and Pulegone, on a phototropic biofilm growing on granite was investigated. In addition, and for comparative purposes, analysis with the combination of the three EOs, the combination of the three EO-ACs, and Preventol RI-80® (one of the most effective commercial cleaning agents based on quaternary ammonium salts) in all three cases embedded in a hydrogel matrix, as well as only the hydrogel matrix, distilled water, and Preventol RI-80®, in both latter cases applied with brush, were also studied. The cleaning effect of the treatments was assessed immediately after the treatment and after one and two weeks by color spectrophotometry, a reliable tool to evaluate the presence and vitality of the phototrophs and the cleaning effectiveness in granite. C. nepeta and its active component Pulegone proved to be the most effective and yielded similar results, comparable to those of uncolonized granite, and better than those obtained with Preventol RI-80® applied with brush (most common way), especially at the end of the experiment. These promising first results support the suitable use of the phytochemical compounds used on phototrophs field where there are still few published studies and encourage further investigation toward the evaluation of their exhibited biocidal activity
PB MDPI
YR 2020
FD 2020
LK http://hdl.handle.net/10347/23469
UL http://hdl.handle.net/10347/23469
LA eng
NO Genova, C.; Fuentes, E.; Sanmartín, P.; Favero, G.; Prieto, B. Phytochemical Compounds as Cleaning Agents on Granite Colonized by Phototrophic Subaerial Biofilms. Coatings 2020, 10, 295
NO This study was partly funded by projects ED431C 2018/32 and CGL2016-79778-R AEI/FEDER, UE. E. Fuentes is supported by a PhD Fellowship-Contract MICINN-FPI (BES-2017-079927)
DS Minerva
RD 24 abr 2026