Antimicrobial activity of the essential oil of pavonia odorata willd
Journal name: Ancient Science of Life
Original article title: Antimicrobial activity of the essential oil of pavonia odorata willd
The ANSCI is a peer-reviewed, open-access journal focused on Ayurveda and traditional medicines. It publishes original research, reviews, and literary studies linking traditional knowledge with modern science, covering disciplines like botany, ethnomedicine, pharmacology, and clinical research.
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Original source:
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Seems Nakhare, S.C. Garg
Ancient Science of Life:
(A quarterly multi-disciplinary scientific research journal in Ayurveda)
Full text available for: Antimicrobial activity of the essential oil of pavonia odorata willd
Year: 1992
Copyright (license): CC BY-NC-SA
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Summary of article contents:
Introduction
Pavonia odorata Willd, commonly found in the warmer regions of India, has garnered interest due to its aromatic rhizomes, which exhibit refrigerant properties. Traditionally, the plant has been utilized for treating dysentery, inflammation, and intestinal hemorrhage. This study investigates the antimicrobial properties of the essential oil extracted from the rhizomes of P. odorata, focusing on its antibacterial and antifungal activities against a range of bacterial and fungal organisms.
Antimicrobial Efficacy of Essential Oil
The essential oil extracted via hydrodistillation yielded a concentration of 0.2% and was tested against ten bacterial and thirteen fungal species using the paper disc agar diffusion method. The findings reveal that the oil effectively inhibited the growth of both Gram-positive and Gram-negative bacteria, notably showing significant activity against Staphylococcus aureus and Escherichia coli at varying dilutions. Notably, at a neat concentration, the oil exhibited excellent antifungal properties, demonstrating inhibition zones surpassing those of standard antifungal agents like Griseofulvin. The oil's effectiveness against dermatophytes, including Trichophyton mentagrophytes and Chrysosporium indicum, underscores its potential applications in treating fungal infections.
Conclusion
The study affirms the antimicrobial potential of the essential oil of Pavonia odorata, supporting its traditional use in Indian medicine. With demonstrated effectiveness against a variety of microbial pathogens, particularly in treating dysentery and fungal infections, there is a clear indication for further research. An in vivo study would better illuminate its practical applications and efficacy as a natural antimicrobial agent, potentially contributing to alternative therapeutic avenues in healthcare.
FAQ section (important questions/answers):
What is the yield of essential oil from Pavonia odorata?
The essential oil extracted from the rhizomes of Pavonia odorata was obtained with a yield of 0.2% through hydrodistillation.
Which bacteria does the essential oil inhibit effectively?
The essential oil was effective against several bacteria, including Staphylococcus aureus, Diplococcus pneumoniae, Escherichia coli, and Klebsiella sp., showing significant inhibition at various dilutions.
What fungi are inhibited by Pavonia odorata essential oil?
The oil demonstrated antifungal activity against Trichophyton mentagrophytes, Aspergillus species, Fusarium solani, Botrydiplodia sp., and others, with remarkable effectiveness noted in several strains.
What were the methods used to evaluate antimicrobial activity?
The antimicrobial activity was assessed using the paper disc agar diffusion method, measuring the zones of inhibition around the discs after incubation with the essential oil.
Glossary definitions and references:
Scientific and Ayurvedic Glossary list for “Antimicrobial activity of the essential oil of pavonia odorata willd”. This list explains important keywords that occur in this article and links it to the glossary for a better understanding of that concept in the context of Ayurveda and other topics.
1) Activity:
In the context of the study, 'Activity' refers to the effectiveness of the essential oil derived from Pavonia odorata in inhibiting the growth of various microorganisms. The antimicrobial activity is a central theme of the research, highlighting the potential medicinal properties of the plant's essential oil against bacteria and fungi.
2) Antibiotic (Antibacterial):
'Antibacterial' pertains to the property of the essential oil to inhibit or kill bacterial growth. The study investigates the oil's efficacy against different strains of bacteria, demonstrating its potential role in treating bacterial infections, thereby contributing to the field of antimicrobial therapies and natural remedies.
3) Hari (Hāri, Hārin, Harī, Harin):
'Hari' refers to Doctor Hari Singh Gour University, where the study was conducted. The university plays an important role as the institution that provided the laboratory facilities and resources for the research, emphasizing the significance of academic institutions in advancing scientific knowledge and research in medicinal plants.
4) Botany:
'Botany' denotes the scientific study of plants, and in this research, it relates to the examination of Pavonia odorata. The procurement of fungal cultures from the Botany Department highlights the importance of botany in understanding plant properties and their applications in medicine, particularly regarding their antimicrobial potential.
5) Inflammation:
'Inflammation' is a biological response that may occur in response to infections, including those potentially addressed by the essential oil of Pavonia odorata. This condition is mentioned as a traditional use of the plant, indicating its historical significance in healing and its implications for modern therapeutic applications.
6) Discussion:
'Discussion' represents the section of the research where findings are interpreted and implications are explored. This part of scientific papers is crucial for analyzing results, comparing them with existing literature, and suggesting future research directions, thus adding depth to the understanding of the studied phenomenon.
7) Medicine:
'Medicine' encompasses the field concerned with the diagnosis, treatment, and prevention of diseases. The study of antimicrobial activity of essential oils contributes to medicinal science, particularly herbal medicine, promoting the exploration of natural substances as viable therapeutic agents against various health issues.
8) Science (Scientific):
'Science' signifies the systematic study of the natural world through observation and experimentation. The research described follows scientific methods to examine the essential oil from Pavonia odorata, exemplifying an empirical approach to discover its antimicrobial properties and contributing to the broader fields of pharmacognosy and biomedicine.
9) Water:
'Water' plays a vital role in the extraction process of the essential oil through hydrodistillation. It serves as a solvent for the extraction and as a medium for preparing nutrient broth for microbial cultures. This highlights its importance in laboratory practices and the study's methodology for evaluating antimicrobial activities.