scholarly journals Essential and Recovery Oils from Matricaria chamomilla Flowers as Environmentally Friendly Fungicides Against Four Fungi Isolated from Cultural Heritage Objects

Processes ◽  
2019 ◽  
Vol 7 (11) ◽  
pp. 809 ◽  
Author(s):  
Mervat EL-Hefny ◽  
Wael Abo Elgat ◽  
Asma Al-Huqail ◽  
Hayssam Ali
Keyword(s):  
Cultural Heritage ◽  
Essential Oils ◽  
Fusarium Culmorum ◽  
Environmentally Friendly ◽  
Matricaria Chamomilla ◽  
Weak Activity ◽  
Cultural Heritage Objects ◽  
Negative Controls ◽  
Growth Of Fungi ◽  
Positive Controls

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 µL/mL, and compared with negative controls (0 µL/mL) or positive controls (Sertaconazol 3g/L). Using GC/MS analysis, the main chemical compounds identified in the essential oil were (Z)-β-farnesene (27%), D-limonene (15.25%), and α-bisabolol oxide A (14.9%), while the compounds identified in the recovery oil were α-bisabolol oxide A (18.6%), d-limonene (8.82%), and α-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 µL/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 µL/mL, both oils showed 100% FMI of A. terreus. Oils showed weak activity against the growth of A. flavus. Essential oils at 100 µL/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.

scholarly journals Antifungal activity of Helichrysum italicum (Roth) G. Don (Asteraceae) essential oil against fungi isolated from cultural heritage objects

2014 ◽  
Vol 66 (4) ◽  
pp. 1539-1545 ◽  
Author(s):  
Milos Stupar ◽  
Milica Ljaljevic-Grbic ◽  
Ana Dzamic ◽  
Nikola Unkovic ◽  
Mihailo Ristic ◽  
...  
Keyword(s):  
Chemical Composition ◽  
Antifungal Activity ◽  
Aspergillus Niger ◽  
Essential Oil ◽  
Cultural Heritage ◽  
Essential Oils ◽  
Trichoderma Viride ◽  
Alternative Methods ◽  
Main Components ◽  
Cultural Heritage Objects

There is considerable interest in the use of essential oils as alternative methods to control micromycetes from cultural heritage objects. We investigated the chemical composition and antifungal activity of the essential oil of Helichrysum italicum. The main components of the oil were ?-curcumene (22.45%), ?-pinene (15.91 %) and neryl acetate (7.85 %). H. italicum essential oil showed moderate antifungal activity against fungi isolated from cultural heritage objects. The most susceptible fungi to oil treatment were Epicoccum nigrum and Penicillium sp., while the most resistant was Trichoderma viride. The H. italicum essential oil showed demelanizing activity against Aspergillus niger.

Antifungal Activity of the Essential Oils from Some Species of the Genus Pinus

2002 ◽  
Vol 57 (5-6) ◽  
pp. 478-482 ◽  
Author(s):  
Mirosława Krauze-Baranowska ◽  
Marek Mardarowicz ◽  
Marian Wiwart ◽  
Loretta Pobłocka ◽  
Maria Dynowska
Keyword(s):  
Antifungal Activity ◽  
Essential Oil ◽  
Essential Oils ◽  
Pinus Ponderosa ◽  
Fusarium Culmorum ◽  
Red Pine ◽  
The Other ◽  
White Pine ◽  
Germacrene D ◽  
Growth Of Fungi

The chemical composition of the essential oils from the needles of Pinus ponderosa (north american pine), P. resinosa (red pine) and P. strobus (eastern white pine) has been determined by GC/MS (FID). The essential oils from P. resinosa and P. ponderosa in comparison to P. strobus have been characterized by the higher content of β-pinene (42.4%, 45.7% and 7.9% respectively). On the other hand, α-pinene (17.7%) and germacrene D (12.2%) were dominant compounds of P. strobus. Moreover the essential oil from P. resinosa was more rich in myrcene-15.9%. Estragole and Δ-3-carene, each one in amount ca 8% were identified only in P. ponderosa. The content of essential oils in the needles slightly varied - 0.65% - P. resinosa, 0.4% - P. strobus, 0.3% - P. ponderosa. The antifungal activity has been investigated towards Fusarium culmorum, F. solani and F. poae. The strongest activity was observed for the essential oil from P. ponderosa, which fully inhibited the growth of fungi at the following concentrations - F. culmorum, F. solani at 2% and F. poae at 5%.

scholarly journals Biosusceptibility of historical bricks from the Bac fortress: part I

2013 ◽  
pp. 171-180
Author(s):  
Ana Vidakovic ◽  
Sinisa Markov ◽  
Snezana Vucetic ◽  
Slavica Vujovic ◽  
Vilma Ducman ◽  
...  
Keyword(s):  
Contact Angle ◽  
Cultural Heritage ◽  
Soil Extract ◽  
Extract Solution ◽  
Cultural Heritage Objects ◽  
Growth Of Fungi ◽  
Cut Surface ◽  
Penicillium Spp

The significance of the conservation of cultural heritage objects has led to a greater interest in the appearance of biocorrosion. The aim of this paper is to point out the correlation between the growth of fungi isolated from the fortress of Bac and the contact angle value of the bricks from the fortress in order to determine the brick susceptibility to biodegradation. Three types of bricks (red, yellow and roan) and three isolates of Penicillium spp., as well as one isolate of Cladosporium sp., were used during the experiments. A suspension of fungi in soil extract solution was inflicted on the surface of the bricks and then the samples were incubated. The study showed that the red bricks with cut surface and the roan bricks with broken surface are the most susceptible to the biocorrosion process. Based on the obtained results, Cladosporium sp. can be considered as the most important biodeteriogenic factor on the bricks built in the walls of the Bac fortress.

PROBLEMS OF CLASSIFICATION OF CULTURAL HERITAGE OBJECTS

2020 ◽  
Vol 10 (2) ◽  
pp. 158-168
Author(s):  
SVETLANA IVANOVA ◽  
Keyword(s):  
Cultural Heritage ◽  
Cultural Values ◽  
Research Work ◽  
Cultural Property ◽  
Cultural Inheritance ◽  
Federal Laws ◽  
Cultural Heritage Objects ◽  
Cultural Monuments

The purpose of the research work is to analyze the norms of Federal laws, as well as the laws of the Russian Federation's constituent entities, devoted to the definitions and classification of the concepts “cultural heritage”, “historical and cultural monuments”, “cultural values”. Conclusions obtained in the course of the research: based on the study of current legislation, it is concluded that the definitions of “cultural values”, “cultural property”, “objects of cultural inheritance” contained in various normative legal acts differ in content. Based on the research, the author proposes the concept of “cultural values”.

scholarly journals Nanocarriers of Miconazole or Fluconazole: Effects on Three-Species Candida Biofilms and Cytotoxic Effects In Vitro

2021 ◽  
Vol 7 (7) ◽  
pp. 500
Author(s):  
Anne Caroline Morais Caldeirão ◽  
Heitor Ceolin Araujo ◽  
Laís Salomão Arias ◽  
Wilmer Ramírez Carmona ◽  
Gustavo Porangaba Miranda ◽  
...  
Keyword(s):  
Fungal Infections ◽  
Artificial Saliva ◽  
Cytotoxic Effects ◽  
Promising Alternative ◽  
Colony Forming Units ◽  
Mtt Reduction ◽  
Diphenyl Tetrazolium Bromide ◽  
Negative Controls ◽  
Positive Controls

The contribution of different Candida species in oral fungal infections has stimulated the search for more effective therapies. This study assessed the antibiofilm effects of nanocarriers of miconazole (MCZ) or fluconazole (FLZ) on Candida biofilms, and their cytotoxic effects on murine fibroblasts. Three-species biofilms (Candida albicans/Candida glabrata/Candida tropicalis) were formed on 96-well plates, and they were treated with nanocarriers (iron oxide nanoparticles coated with chitosan—“IONPs-CS”) of MCZ or FLZ at 39/78/156 µg/mL; antifungals alone at 156 µg/mL and artificial saliva were tested as positive and negative controls, respectively. Biofilms were analyzed by colony forming units (CFU), biomass, metabolic activity, and structure/viability. The cytotoxicity (L929 cells) of all treatments was determined via 3-[4,5-dimethylthiazol-2-yl]-2,5 diphenyl tetrazolium bromide (MTT) reduction assay. Data were submitted to one- or two-way ANOVA, followed by Tukey’s or Fisher LSD’s tests (p < 0.05). IONPs-CS-MCZ at 78 µg/mL promoted similar antibiofilm and cytotoxic effects compared with MCZ at 156 µg/mL. In turn, IONPs-CS-FLZ at 156 µg/mL was overall the most effective FLZ antibiofilm treatment, surpassing the effects of FLZ alone; this nanocarrier was also less cytotoxic compared with FLZ alone. It can be concluded that both nanocarriers are more effective alternatives to fight Candida biofilms compared with their respective positive controls in vitro, being a promising alternative for the treatment of oral fungal infections.

scholarly journals Integrating expert feedback on the spot in a time-efficient explorative CT scanning workflow for cultural heritage objects

2021 ◽  
Author(s):  
Francien G. Bossema ◽  
Sophia Bethany Coban ◽  
Alexander Kostenko ◽  
Paul van Duin ◽  
Jan Dorscheid ◽  
...  
Keyword(s):  
Cultural Heritage ◽  
Ct Scanning ◽  
Cultural Heritage Objects
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