Journal
PROCESSES
Volume 7, Issue 11, Pages -Publisher
MDPI
DOI: 10.3390/pr7110809
Keywords
antifungal activity; chamazulene; GC/MS-analysis; Matricaria chamomilla; flower oils; cultural heritage
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Funding
- Deanship of Scientific Research, King Saud University, through the Vice Deanship of Scientific Research Chairs
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Recovery oils, obtained from the hydro-distillation of the fresh flowers of Matricaria chamomilla, as well as essential oils, were studied for their environmental purposes in cultural heritage. These oils were assayed for their antifungal activity against the growth of four molds isolated from archaeological manuscripts (Aspergillus niger), museum gypsum board Antique (A. flavus), museum archaeological tissue (A. terreus), and museum organic materials (Fusarium culmorum) of cultural heritage objects. Oils were applied to inhibit the growth of fungi at amounts of 25, 50, 75 and, 100 mu L/mL, and compared with negative controls (0 mu L/mL) or positive controls (Sertaconazol 3g/L). Using GC/MS analysis, the main chemical compounds identified in the essential oil were (Z)-beta-farnesene (27%), D-limonene (15.25%), and alpha-bisabolol oxide A (14.9%), while the compounds identified in the recovery oil were alpha-bisabolol oxide A (18.6%), d-limonene (8.82%), and alpha-bisabolol oxide B (7.13%). A low amount of chamazulene was observed in both essential and recovery oils, with amounts of 0.73% and 3.50%, respectively. Recovery oil, at a concentration of 75 and 100 mu L/mL, showed fungal mycelial inhibition (FMI) percentage for the growth of A. niger, with values of 78% and 85%, respectively. At a concentration of 100 mu L/mL, both oils showed 100% FMI of A. terreus. Oils showed weak activity against the growth of A. flavus. Essential oils at 100 mu L/mL had good activity against the growth of F. culmorum, with FMI of 86.6%. The results suggest the potential use of essential and recovery oils from M.chamomilla fresh flowers as environmentally friendly bio-fungicides.
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