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Research article
Somayeh Ghahari
Sari Agricultural Sciences and Natural Resources University
Corresponding Author
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Background: The plant essential oils and extracts are possible sources of natural bioactive molecules and have been selected globally for new antimicrobial compounds, food preservatives, and alternatives to treat infectious disease.
Methods: In this research, antimicrobial activities of chloroformic and methanolic extracts of Sophora flavescens, Rhaponticum repens, Alhagi maurorum, Melia azedarach, Peganum harmala, and Juncus conglomeratus were evaluated against 8 bacteria (S. aureus, B. subtilis, R. toxicus, P. aeruginosa, E. coli, P. syringae, X. campestris, P. viridiflava) and 3 fungi (Pyricularia oryzae, Fusarium oxysporum and Botrytis cinerea) through disc diffusion method. Furthermore, the essential oil of plants with the highest antibacterial activity was analyzed utilizing GC/MS. Moreover, tested plants were exposed to screening for possible antioxidant effect utilizing DPPH test, guaiacol peroxidas, and catalase enzymes. Besides, the amount of total phenol and flavonoid of these plants was measured.
Results: Among tested plants, methanolic and chloroformic extracts of P. harmala fruits showed the highest antibacterial activity against tested bacteria. Also, the investigation of free radical scavenging effects of the tested plants indicated the highest DPPH, protein, guaiacol peroxidase, and catalase in P. harmala, M. azedarach, J. conglomeratus fruits, and J. conglomeratus fruits, respectively. In addition, the phytochemical analysis demonstrated the greatest amounts of total phenolic, and flavonoid compositions in J. conglomeratus and P. harmala.
Conclusion: The results indicated that these plants can act as a promising antimicrobial agent due to its short killing time.
Keywords
Antibacterial activities, Antifungal effects, Antioxidant activities, Plant extracts
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On 13 Feb, 2020
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On 11 Feb, 2020
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Editorial decision: Major revision
On 05 Feb, 2020
Review #2 received
Received 04 Feb, 2020
Reviewer #2 agreed
On 26 Jan, 2020
Review #1 received
Received 25 Jan, 2020
Editor assigned
On 21 Jan, 2020
Reviewers invited
Invitations sent on 21 Jan, 2020
Reviewer #1 agreed
On 21 Jan, 2020
Submission checks complete
On 20 Jan, 2020
Editor invited
On 20 Jan, 2020
Version 1
Posted 19 Dec, 2019
No comments provided
Editorial decision: Major revision
On 14 Jan, 2020
Review #2 received
Received 12 Jan, 2020
Reviewer #2 agreed
On 10 Jan, 2020
Reviewer #3 agreed
On 10 Jan, 2020
Review #1 received
Received 01 Jan, 2020
Reviewer #1 agreed
On 27 Dec, 2019
Reviewers invited
Invitations sent on 20 Dec, 2019
Editor assigned
On 17 Dec, 2019
Submission checks complete
On 16 Dec, 2019
Editor invited
On 16 Dec, 2019
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See the published version of this preprint at BMC Chemistry.
This is a preprint, a preliminary version of a manuscript that has not completed peer review at a journal. Research Square does not conduct peer review prior to posting preprints. The posting of a preprint on this server should not be interpreted as an endorsement of its validity or suitability for dissemination as established information or for guiding clinical practice.
Learn more about In Review
Research article
Somayeh Ghahari
Sari Agricultural Sciences and Natural Resources University
Corresponding Author
Badges
Prescreen
This manuscript passed our Prescreen assessment
Complete author information
Appropriate declaration statements
Potential risks to human health
Prescreen
Peer Review Timeline
CURRENT STATUS: Published
View the published article at BMC Chemistry.
No community comments so far
Editor assigned
On 23 Mar, 2020
Submission checks complete
On 22 Mar, 2020
Editor invited
On 22 Mar, 2020
No comments provided
Editorial decision: Minor revision
On 18 Mar, 2020
Review #2 received
Received 17 Mar, 2020
Reviewer #2 agreed
On 02 Mar, 2020
Review #1 received
Received 20 Feb, 2020
Reviewers invited
Invitations sent on 13 Feb, 2020
Reviewer #1 agreed
On 13 Feb, 2020
Editor assigned
On 12 Feb, 2020
Submission checks complete
On 11 Feb, 2020
Editor invited
On 11 Feb, 2020
No comments provided
Editorial decision: Major revision
On 05 Feb, 2020
Review #2 received
Received 04 Feb, 2020
Reviewer #2 agreed
On 26 Jan, 2020
Review #1 received
Received 25 Jan, 2020
Editor assigned
On 21 Jan, 2020
Reviewers invited
Invitations sent on 21 Jan, 2020
Reviewer #1 agreed
On 21 Jan, 2020
Submission checks complete
On 20 Jan, 2020
Editor invited
On 20 Jan, 2020
Version 1
Posted 19 Dec, 2019
No comments provided
Editorial decision: Major revision
On 14 Jan, 2020
Review #2 received
Received 12 Jan, 2020
Reviewer #2 agreed
On 10 Jan, 2020
Reviewer #3 agreed
On 10 Jan, 2020
Review #1 received
Received 01 Jan, 2020
Reviewer #1 agreed
On 27 Dec, 2019
Reviewers invited
Invitations sent on 20 Dec, 2019
Editor assigned
On 17 Dec, 2019
Submission checks complete
On 16 Dec, 2019
Editor invited
On 16 Dec, 2019
Metrics
Comments: 0
PDF Downloads: ...
HTML Views: ...
License:
This work is licensed under a CC BY 4.0 License. Read Full License
View the published article at BMC Chemistry.
Background: The plant essential oils and extracts are possible sources of natural bioactive molecules and have been selected globally for new antimicrobial compounds, food preservatives, and alternatives to treat infectious disease.
Methods: In this research, antimicrobial activities of chloroformic and methanolic extracts of Sophora flavescens, Rhaponticum repens, Alhagi maurorum, Melia azedarach, Peganum harmala, and Juncus conglomeratus were evaluated against 8 bacteria (S. aureus, B. subtilis, R. toxicus, P. aeruginosa, E. coli, P. syringae, X. campestris, P. viridiflava) and 3 fungi (Pyricularia oryzae, Fusarium oxysporum and Botrytis cinerea) through disc diffusion method. Furthermore, the essential oil of plants with the highest antibacterial activity was analyzed utilizing GC/MS. Moreover, tested plants were exposed to screening for possible antioxidant effect utilizing DPPH test, guaiacol peroxidas, and catalase enzymes. Besides, the amount of total phenol and flavonoid of these plants was measured.
Results: Among tested plants, methanolic and chloroformic extracts of P. harmala fruits showed the highest antibacterial activity against tested bacteria. Also, the investigation of free radical scavenging effects of the tested plants indicated the highest DPPH, protein, guaiacol peroxidase, and catalase in P. harmala, M. azedarach, J. conglomeratus fruits, and J. conglomeratus fruits, respectively. In addition, the phytochemical analysis demonstrated the greatest amounts of total phenolic, and flavonoid compositions in J. conglomeratus and P. harmala.
Conclusion: The results indicated that these plants can act as a promising antimicrobial agent due to its short killing time.
Figure 1
Figure 2
Figure 3
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