A medicinal plant is any plant which, in one or more of its organs, contains substances that can be used for therapeutic purposes. In developing countries all over the world, large numbers of people die daily of preventable or curable diseases because of the lack of even simple health care. So the study was interested entitled “In vitro antibacterial activities of methanol and aqueous extracts of leaves of Carica papaya and Moringa oleifera against selected human pathogenic bacteria”. Moringa oleifera and Carica papaya is medicinal plants which have medicinal values for the treatment of various infectious illness were interested for investigation of their antibacterial activities against E. coli and H. pylore. Two solvent types (methanol and distilled water) were used for crude extraction. The vulnerability of the pathogen to the antibacterial substances was determined using the disc diffusion method. Minimum Inhibitory Concentration was determined by the broth dilution method. The results of the antibacterial activities revealed that both methanol and aqueous leaf extracts had inhibitory activities against the selected gram-positive and gram-negative test pathogens. Methanol extract of Carica papaya had the highest antibacterial activity (13.3 mm) against H. pylore, while Moringa oleifera indica exhibited the least zone of inhibition (8.2 mm) at a concentration of 150 mg/mL. The Antibacterial activities of heat treated crude extracts against the test pathogens were also determined at varying temperature (45-55°C) for a period of 30 and 60 minutes. The results revealed that at higher temperature and exposure time, there was a decrease in the zone of inhibitions. The Minimum Inhibitory Concentrations of the methanol extracts ranged from 1.25 mg/ml - 5 mg/mL; whereas, for aqueous extracts ranged from 2.5 mg/mL -10 mg/mL. In general, this study provides base line information for further work on the search for specific active compounds from the selected plant leaf extracts against human pathogenic bacteria.
Published in | American Journal of Bioscience and Bioengineering (Volume 9, Issue 5) |
DOI | 10.11648/j.bio.20210905.12 |
Page(s) | 136-142 |
Creative Commons |
This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited. |
Copyright |
Copyright © The Author(s), 2021. Published by Science Publishing Group |
Antibacterial Activity, Carica papaya, E. coli, Disc Diffusion, Heat Treatment, H. pylore, Moringa oleifera
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APA Style
Temam Gemeda Genemo. (2021). In Vitro Antibacterial Activities of Methanol and Aqueous Extracts of Leaves of Carica papaya and Moringa oleifera Against Selected Human Pathogenic Bacteria. American Journal of Bioscience and Bioengineering, 9(5), 136-142. https://doi.org/10.11648/j.bio.20210905.12
ACS Style
Temam Gemeda Genemo. In Vitro Antibacterial Activities of Methanol and Aqueous Extracts of Leaves of Carica papaya and Moringa oleifera Against Selected Human Pathogenic Bacteria. Am. J. BioSci. Bioeng. 2021, 9(5), 136-142. doi: 10.11648/j.bio.20210905.12
AMA Style
Temam Gemeda Genemo. In Vitro Antibacterial Activities of Methanol and Aqueous Extracts of Leaves of Carica papaya and Moringa oleifera Against Selected Human Pathogenic Bacteria. Am J BioSci Bioeng. 2021;9(5):136-142. doi: 10.11648/j.bio.20210905.12
@article{10.11648/j.bio.20210905.12, author = {Temam Gemeda Genemo}, title = {In Vitro Antibacterial Activities of Methanol and Aqueous Extracts of Leaves of Carica papaya and Moringa oleifera Against Selected Human Pathogenic Bacteria}, journal = {American Journal of Bioscience and Bioengineering}, volume = {9}, number = {5}, pages = {136-142}, doi = {10.11648/j.bio.20210905.12}, url = {https://doi.org/10.11648/j.bio.20210905.12}, eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.bio.20210905.12}, abstract = {A medicinal plant is any plant which, in one or more of its organs, contains substances that can be used for therapeutic purposes. In developing countries all over the world, large numbers of people die daily of preventable or curable diseases because of the lack of even simple health care. So the study was interested entitled “In vitro antibacterial activities of methanol and aqueous extracts of leaves of Carica papaya and Moringa oleifera against selected human pathogenic bacteria”. Moringa oleifera and Carica papaya is medicinal plants which have medicinal values for the treatment of various infectious illness were interested for investigation of their antibacterial activities against E. coli and H. pylore. Two solvent types (methanol and distilled water) were used for crude extraction. The vulnerability of the pathogen to the antibacterial substances was determined using the disc diffusion method. Minimum Inhibitory Concentration was determined by the broth dilution method. The results of the antibacterial activities revealed that both methanol and aqueous leaf extracts had inhibitory activities against the selected gram-positive and gram-negative test pathogens. Methanol extract of Carica papaya had the highest antibacterial activity (13.3 mm) against H. pylore, while Moringa oleifera indica exhibited the least zone of inhibition (8.2 mm) at a concentration of 150 mg/mL. The Antibacterial activities of heat treated crude extracts against the test pathogens were also determined at varying temperature (45-55°C) for a period of 30 and 60 minutes. The results revealed that at higher temperature and exposure time, there was a decrease in the zone of inhibitions. The Minimum Inhibitory Concentrations of the methanol extracts ranged from 1.25 mg/ml - 5 mg/mL; whereas, for aqueous extracts ranged from 2.5 mg/mL -10 mg/mL. In general, this study provides base line information for further work on the search for specific active compounds from the selected plant leaf extracts against human pathogenic bacteria.}, year = {2021} }
TY - JOUR T1 - In Vitro Antibacterial Activities of Methanol and Aqueous Extracts of Leaves of Carica papaya and Moringa oleifera Against Selected Human Pathogenic Bacteria AU - Temam Gemeda Genemo Y1 - 2021/09/23 PY - 2021 N1 - https://doi.org/10.11648/j.bio.20210905.12 DO - 10.11648/j.bio.20210905.12 T2 - American Journal of Bioscience and Bioengineering JF - American Journal of Bioscience and Bioengineering JO - American Journal of Bioscience and Bioengineering SP - 136 EP - 142 PB - Science Publishing Group SN - 2328-5893 UR - https://doi.org/10.11648/j.bio.20210905.12 AB - A medicinal plant is any plant which, in one or more of its organs, contains substances that can be used for therapeutic purposes. In developing countries all over the world, large numbers of people die daily of preventable or curable diseases because of the lack of even simple health care. So the study was interested entitled “In vitro antibacterial activities of methanol and aqueous extracts of leaves of Carica papaya and Moringa oleifera against selected human pathogenic bacteria”. Moringa oleifera and Carica papaya is medicinal plants which have medicinal values for the treatment of various infectious illness were interested for investigation of their antibacterial activities against E. coli and H. pylore. Two solvent types (methanol and distilled water) were used for crude extraction. The vulnerability of the pathogen to the antibacterial substances was determined using the disc diffusion method. Minimum Inhibitory Concentration was determined by the broth dilution method. The results of the antibacterial activities revealed that both methanol and aqueous leaf extracts had inhibitory activities against the selected gram-positive and gram-negative test pathogens. Methanol extract of Carica papaya had the highest antibacterial activity (13.3 mm) against H. pylore, while Moringa oleifera indica exhibited the least zone of inhibition (8.2 mm) at a concentration of 150 mg/mL. The Antibacterial activities of heat treated crude extracts against the test pathogens were also determined at varying temperature (45-55°C) for a period of 30 and 60 minutes. The results revealed that at higher temperature and exposure time, there was a decrease in the zone of inhibitions. The Minimum Inhibitory Concentrations of the methanol extracts ranged from 1.25 mg/ml - 5 mg/mL; whereas, for aqueous extracts ranged from 2.5 mg/mL -10 mg/mL. In general, this study provides base line information for further work on the search for specific active compounds from the selected plant leaf extracts against human pathogenic bacteria. VL - 9 IS - 5 ER -