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academies
Journal of Materials Science and Nanotechnology | Volume: 3
March 20-21, 2019 | London, UK
Materials Science and Materials Chemistry
2
nd
International Conference on
Experimental and quantum study of anticorrosive activity and biological activities of natural and
synthetic substances
Belkheir Hammouti
1
, A Salhi
1,2
, A Bouyanzer
1
, T Ben Hadda
3
, H Amhamdi
2
, A Zarrouk
4
1
University Mohammed Premier, Morocco
2
Abdelmalek Assaadi University, Morocco
3
Faculté des Sciences Université Mohamed, Morocco
4
University Mohammed V, Morocco
T
he present work is devoted to the study of the inhibition of
corrosion ofmild steel, antioxidant activity and antimicrobial
effect for plant extracts and synthetic products. Theobjective
is, on the one hand, to contribute to the valorization of three
plants that growthspontaneously in the region of the Rif,
Morocco. On the other hand, to evaluate the potentialitiesof
synthetic compounds. The experimental studies carried out
were corroborated by thetheoretical study in order to develop a
correlation between the results obtained from theexperimental
measurements and the effect of the molecular structure using
the DFT method. The anticorrosive effect was evaluated in a
molarhydrochloric acid environment using gravimetric and
electrochemicalmethods. Theexperimental results showed that
the inhibitors tested showed good corrosion inhibition. In vitro
evaluation of the antioxidant activity of the various phenolic
extracts of threeplants and the synthetic phenolic compounds
was carried out by three methods: trapping the 2,2-diphenyl-
1-picrylhydrazyl (DPPH) radical, the β-carotene bleaching (βCB)
and the ferric reducing antioxidant power (FRAP). Thus, the
results obtained have shown that the antioxidant activities
are interesting and aredependent on the content of phenolic
compounds. The various extracts and synthetic compounds
were also screened for their possibleantimicrobial activity
against different strains. This evaluation was carried out by
the methodof diffusion of the disc on Muller-Hinton Agar
(MHA). In this work, the Pistacialentiscus showed good activity
antimicrobial against most ofthe strains tested. In addition, the
synthetic compounds have been found tobe interesting with
encouraging potential. Thus, the study of electronic properties
by the DFT method suggested that the antifungal effect of the
synthetic compounds is correlatedwith themolecular structural
effect.
e:
hammoutib@gmail.com