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52305

ANTIMICROBIAL AND ANTIOXIDANT ACTIVITIES OF SOME PLANT EXTRACTS

Article

Last updated: 30 Jan 2023

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Abstract

In this study, three plants; rosemary, ginger, and peppermint, were extracted using three solvents; ethanol, methanol and water. A comparison was held between different extracts concerning: chemical composition, efficiency of the extraction method, yield, antimicrobial and antioxidant potentials. Phenolic compounds profile were studied via High Performance Liquid Chromatography (HPLC).Antimicrobial activity of the extracts was examined against: Escherichia coli, Staphylococcus epidermidis, Staphylococcus aureus, Staphylococcus pyogenes, Candida albicans, Klebseilla pneumonia, Bacillus subtilis and Streptococcus. sppusing agar well diffusion method. The inhibition zones diameter (IZD) were ranged between 11- 37 mm. The results showed that ethanol extraction had the highest yield of rosemary and peppermint (19.17 and 17.19%, respectively). While; the lowest was obtained from ginger methanol extracts (12.78%). Rosemary water extract had the highest total phenolic contents (271.66 ± 12.2 µg/mg, while ethanol extract of ginger and peppermint gave 201.31 ± 8.99 and 165 ± 4.74 mg gallic acid equivalent (GAE/g) respectively. Concerning the total flavonoid contents; rosemary methanol extract gained the highest content (123.9 ± 2.99 µg/mg), while in ethanol extracts of ginger and peppermint showed the best results (44.06 ± 0.55, 89.54 ± 2.63 µg/mg, respectively). Antioxidant activity was used as a parameter to evaluate the protective antioxidant ability of examined herbs represented in IC50 (inhibition concentration). Results showed that in rosemary water extract 24.5µg/ml, while in ginger and peppermint ethanol extracts was 38.98 and 80 µg/ml, respectively. Depending on results stated above, it can be recommend using water for rosemary extraction and ethanol 70% for ginger and peppermint extractions for the best antioxidant and antimicrobial impact.

DOI

10.21608/zjar.2017.52305

Keywords

Natural antioxidants, Plant extracts, Antioxidant activity, Phenolic compounds, Flavonoids, antimicrobial activity

Authors

First Name

Mahdy

Last Name

El-Naggar

MiddleName

N.

Affiliation

Food Technol. Dept., Arid Land Cultivation Res. Inst., City of Sci. Res. and Technol. Applications, Univ. and Res. Cent. District, New Borg El Arab, 21934 Alex., Egypt

Email

mahdy_nasr89@yahoo.com

City

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Orcid

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First Name

G.

Last Name

Abdulla

MiddleName

-

Affiliation

Food Sci. Dept., Fac. Agric., Zagazig Univ., Egypt

Email

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City

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Orcid

-

First Name

Gehan

Last Name

El-Shourbagy

MiddleName

A.

Affiliation

Food Sci. Dept., Fac. Agric., Zagazig Univ., Egypt

Email

-

City

-

Orcid

-

First Name

A.

Last Name

El-Badawi

MiddleName

A.

Affiliation

Food Technol. Dept., Arid Land Cultivation Res. Inst., City of Sci. Res. and Technol. Applications, Univ. and Res. Cent. District, New Borg El Arab, 21934 Alex., Egypt

Email

-

City

-

Orcid

-

First Name

S.

Last Name

El Sohaimy

MiddleName

A.

Affiliation

Food Technol. Dept., Arid Land Cultivation Res. Inst., City of Sci. Res. and Technol. Applications, Univ. and Res. Cent. District, New Borg El Arab, 21934 Alex., Egypt

Email

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City

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Orcid

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Volume

44

Article Issue

3

Related Issue

8028

Issue Date

2017-05-01

Receive Date

2017-02-27

Publish Date

2017-05-01

Page Start

1,061

Page End

1,071

Print ISSN

1110-0338

Link

https://zjar.journals.ekb.eg/article_52305.html

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https://zjar.journals.ekb.eg/service?article_code=52305

Order

17

Type

Original Article

Type Code

842

Publication Type

Journal

Publication Title

Zagazig Journal of Agricultural Research

Publication Link

https://zjar.journals.ekb.eg/

MainTitle

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Details

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Article

Created At

22 Jan 2023