scholarly journals Phytochemistry and antibacterial activity of extracts from medicinal plant Olea africana

2016 ◽  
Vol 10 (15) ◽  
pp. 330-336
Author(s):  
Douglas Kemboi ◽  
Jepkorir Kiplimo Joyce ◽  
Chirchir Denis
Keyword(s):  
Antibacterial Activity ◽  
Medicinal Plant

Antioxidant and antibacterial activity of Thai medicinal plant (Capparis micracantha)

2018 ◽  
Author(s):  
Nonglak Laoprom ◽  
Araya Sangprom ◽  
Patcharaporn Chaisri
Keyword(s):  
Antibacterial Activity ◽  
Medicinal Plant

scholarly journals Tetracera scandens as a Medicinal Plant: Secretory Structures, Histochemistry, and Antibacterial Activity

2018 ◽  
Vol 8 (1) ◽  
pp. 68-74 ◽  
Author(s):  
Evi Muliyah ◽  
Sulistijorini Sulistijorini ◽  
Yohana Sulistyaningsih ◽  
Mohamad Rafi
Keyword(s):  
Antibacterial Activity ◽  
Medicinal Plant ◽  
Secretory Structures

scholarly journals Antibacterial Activity and Flavonoids Content of Artemisia cina Berg. ex Poljakov Ethyl Acetate Extracts

2021 ◽  
Vol 13 (1) ◽  
pp. 106-112
Author(s):  
Sri Kasmiyati ◽  
Elizabeth Betty Elok Kristiani ◽  
Maria Marina Herawati ◽  
Andreas Binar Aji Sukmana
Keyword(s):  
Antibacterial Activity ◽  
Medicinal Plant ◽  
Ethyl Acetate ◽  
Biological Activities ◽  
Diffusion Method ◽  
Gram Negative Bacteria ◽  
Flavonoid Content ◽  
Gram Positive ◽  
Gram Negative ◽  
Significant Difference

The medicinal plant-derived bioactive compounds have a potential for many biological activities, including antimicrobial activity. Artemisia cina is a medicinal plant from the Compositae family with the potential of having antitumor, antifungal, and antibacterial activity. This study aimed to determine the antibacterial activity and the flavonoid content of A. Cina’s ethyl acetate extract. Plants samples were extracted by ethyl acetate maceration method. Antibacterial activity was tested against Gram-negative bacteria (Escherichia coli and Pseudomonas aeruginosa) and Gram-positive bacteria (Bacillus subtilis and Staphylococcus aureus) by a disk diffusion method using 25, 50, and 100 mg/l extract concentrations. The flavonoid contents (quercetin and kaempferol) were measured using High-Performance Liquid Chromatography. The extracts of diploid and polyploid A. cina displayed some antibacterial activity, with the Gram-negative bacteria being more resistant than the Gram-positive counterpart. However, no significant difference was observed between the diploid and polyploid extracts. As for the flavonoid content, the highest quercetin content (0.5501 mg/ml) was found in the polyploid A. cina (J), while the highest kaempferol content (0.5818 mg/ml) was observed in the diploid A. cina (KJT). Although A. cina is widely grown in Indonesia, compared to other Artemisia species, A. cina has not been widely studied, especially its antibacterial  potential and in related to its flavonoid content and the use of ethyl acetate as the extraction solvent.  This study reveals the potential of A. cina as a natural antibacterial agent. 

scholarly journals Synthesis of Zinc Oxide Nanoparticles Using Leaf Extract of Lippia adoensis (Koseret) and Evaluation of Its Antibacterial Activity

2020 ◽  
Vol 2020 ◽  
pp. 1-9 ◽  
Author(s):  
Meron Girma Demissie ◽  
Fedlu Kedir Sabir ◽  
Gemechu Deressa Edossa ◽  
Bedasa Abdisa Gonfa
Keyword(s):  
Electron Microscopy ◽  
Zinc Oxide ◽  
Antibacterial Activity ◽  
Medicinal Plant ◽  
Zno Nanoparticles ◽  
Zinc Oxide Nanoparticles ◽  
Leaf Extract ◽  
Diffusion Method ◽  
Oxide Nanoparticles ◽  
Lippia Adoensis

The synthesis of metal oxide nanoparticles with the use of medicinal plant extract is a promising alternative to the conventional chemical method. This work aimed to synthesize zinc oxide nanoparticles using a green approach from indigenous “Koseret” Lippia adoensis leaf extract which is an endemic medicinal plant and cultivated in home gardens of different regions of Ethiopia. The biosynthesized zinc oxide nanoparticles were characterized using thermogravimetric analysis, X-ray diffraction, scanning electron microscopy-energy dispersive spectroscopy, transmission electron microscopy, ultraviolet-visible spectroscopy, and Fourier transform infrared spectroscopy. Furthermore, this study also evaluated the antibacterial activity of the synthesized ZnO nanoparticles against clinical and standard strains of Escherichia coli, Klebsiella pneumonia, Staphylococcus aureus, and Enterococcus faecalis by the disc diffusion method. According to the result of this study, ZnO nanoparticles synthesized using Lippia adoensis leaf extract showed promising result against both Gram-positive and Gram-negative bacterial strains with a maximum inhibition zone of 14 mm and 12 mm, respectively, using uncalcinated form of the synthesized ZnO nanoparticles.

scholarly journals Study on Antibacterial Activity of the Bark of Garcinia lanceifolia Roxb.

2014 ◽  
Vol 2014 ◽  
pp. 1-3 ◽  
Author(s):  
Nilutpal Sharma Bora ◽  
Bibhuti Bhusan Kakoti ◽  
Barnali Gogoi
Keyword(s):  
Antibacterial Activity ◽  
Medicinal Plant ◽  
Methanolic Extract ◽  
Scientific Evidence ◽  
Northeast India ◽  
Local People ◽  
Ethnic Communities ◽  
Medicinal Value ◽  
Endemic Medicinal Plant

Garcinia lanceifolia Roxb. is an important and endemic medicinal plant of Assam which has been used by various ethnic communities of Northeast India to treat various disorders like dysentery, dyspepsia, and biliousness. The plant is considered to be containing much medicinal value and is also eaten raw or made into pickles by the local people. Our present study has been focused on the evaluation of the antibacterial activity of the methanolic extract of the bark of Garcinia lanceifolia which may lead us to a scientific evidence of the use of this plant in cases of dysentery and diarrhoea.

In vitro Antibacterial Activity of Organic Extracts from North-West Moroccan Medicinal Plant Myrtus communis (L.)

2016 ◽  
Vol 16 (4) ◽  
pp. 1-9 ◽  
Author(s):  
Abdelhakim Bouyahya ◽  
Jamal Abrini ◽  
El-Ouardy Khay ◽  
Saoulajan Charfi ◽  
Nadia Boujida ◽  
...  
Keyword(s):  
Antibacterial Activity ◽  
Medicinal Plant ◽  
Myrtus Communis ◽  
North West ◽  
Myrtus Communis L ◽  
Organic Extracts ◽  
In Vitro Antibacterial Activity

scholarly journals Antibacterial activity of Mentha piperita L. (peppermint) from leaf extracts - a medicinal plant

2007 ◽  
Vol 89 (1) ◽  
Author(s):  
G. Bupesh ◽  
C. Amutha ◽  
S. Nandagopal ◽  
A. Ganeshkumar ◽  
P. Sureshkumar ◽  
...  
Keyword(s):  
Antibacterial Activity ◽  
Medicinal Plant ◽  
Mentha Piperita ◽  
Leaf Extracts

scholarly journals Uji Fitokimia dan Aktivitas Antibakteri Tumbuhan Pranajiwa (Euchresta horsfieldii (Lesch.) Benn.)

2018 ◽  
Vol 12 (2) ◽  
pp. 223
Author(s):  
Amalia Indah Prihantini ◽  
Krisnawati Krisnawati ◽  
Anita Apriliani Dwi Rahayu ◽  
Yosephin Martha Maria Anita Nugraheni ◽  
Gipi Samawandana
Keyword(s):  
Fatty Acids ◽  
Antibacterial Activity ◽  
Medicinal Plant ◽  
Antibacterial Agents ◽  
Phytochemical Analysis ◽  
Activity Assay ◽  
Alternative Source ◽  
E Coli ◽  
Escherchia Coli ◽  
Main Components

Euchresta horsfieldii merupakan tanaman obat yang dikenal di Nusa Tenggara Barat dan Bali sebagai pranajiwa. Pada penelitian ini telah dilakukan analisis fitokimia dan aktivitas antibakteri dari akar, batang, daun, dan biji pranajiwa. Pengujian aktivitas antibakteri dilakukan terhadap bakteri Bacilus subtilis Inacc-B334, Staphylococccus aureus Inacc-B4, dan Escherchia coli Inacc-B5. Hasil analisis fitokimia menunjukkan bahwa alkaloid sebagai komponen senyawa yang paling dominan pada pranajiwa dan terdeteksi di setiap bagian tanaman. Bagian akar pranajiwa terdeteksi memiliki komponen senyawa yang paling bervariasi seperti alkaloid, tanin, flavonoid, saponin, dan terpenoid. Analisis GC-MS dari batang, akar, dan biji pranajiwa menunjukkan mome inositol, sophoridane, dan asam lemak seperti asam palmitat dan asam stearat sebagai komponen utamanya. Adapun uji aktivitas antibakteri pranajiwa menunjukkan bagian batang dan akar memiliki aktivitas antibakteri terhadap S. aureus Inacc-B4 dan E. coli Inacc B-5, sedangkan bagian biji memiliki aktivitas antibakteri terhadap B. subtilis Inacc-B-334 dan S. aureus Inacc-B4. Hasil-hasil penelitian tersebut dapat mendukung penelitian terkait potensi E. horsfieldii sebagai sumber alternatif obat antibakteri. Phytochemical Test and Antibacterial Activity of Pranawija (Euchresta horsfieldii (Lesch.) Benn.)AbstractEuchresta horsfieldii is a medicinal plant known in West Nusa Tenggara and Bali as pranajiwa. This study investigated phytochemical analysis and antibacterial activity of roots, stems, leaves, and seeds of E. horsfieldii. The samples were analyzed for their antibacterial activity against Bacilus subtilis Inacc-B334, Staphylococccus aureus Inacc-B4, and Escherchia coli Inacc-B5. The phytochemistry result indicated that alkaloids was the most dominant constituent of E. horsfieldii as it was detected in all parts of the plant. GC-MS analysis of the stems, roots, and seeds showed mome inositol, sophoridane, and fatty acids such as palmitic acid and strearic acid as the main components. The roots had the most varied constituents with detection of alkaloids, tannins, flavonoids, saponins, and terpenoids. Further, antibacterial activity assay showed that the stems and roots had antibacterial activity against S. aureus Inacc-B4 and E. coli Inacc B-5, whereas the seeds had antibacterial activity against B. subtilis Inacc-B-334 and S. aureus InaccB4. The result of the present study supports the investigation on potentiality of E. horsfieldii as alternative source for antibacterial agents.

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