Penetapan Kadar Flavonoid Dan Uji Aktivitas Antibakteri Ekstrak Sereh  (Cymbopogon nardus) Dan Temu Kunci (Boesnbergia pandurata Roxb) Terhadap Bakteri Streptococcus Mutans

Indonesia is rich in medicinal plants, including those that have the ability to inhibit bacterial growth, lemongrass (Cymbopogon nardus) and Fingerroots (Boesenbergia pandurata). Streptococcus mutans is a bacterium that causes dental caries. This Experiment want to determine the content of chemical compounds and the antibacterial activity of Lemongrass extract (Cymbopogon nardus) and Fingerroots (Boesenbergia pandurata) against Streptococcus mutans. The study was conducted experimentally with samples of lemongrass and Fingerroots. Extraction using maceration method using 70% Ethanol solvent. Phytochemical screening test with color test and determination of total flavonoid levels using a spectrophotometer. Antibacterial activity test uses the disk diffusion method against Streptococcus mutans. Phytochemical screening results of lemongrass extract and fingerroots with color test qualitative test showed positive containing flavonoids, saponins and tannins. In the test determination of total flavonoid levels, showed an average total flavonoid levels in lemongrass extracts of 48.61 mgQE / g and in Fingerroots extracts of 24.71 mgQE / g. The results of the antibacterial test against Streptococcus mutans obtained the largest average diameter of inhibitory zone in the extract of Fingerroots 5% w / v (11.167 mm), then the concentration of 5% w / v combination of lemongrass: Fingerroots 1: 2 (10.83 mm ), 2: 1 combination (10,067 mm). lemongrass (9.33 mm), 1: 1 combination (9,133 mm), Based on the Post Hoc test results that were comparable to positive controls were 5% fingerrots, combination of lemongrass: 1: 2 Fingerroots, and 2: 1 combination. The average total flavonoid level in lemongrass extract is more than the average total flavonoid content in Fingerroots. But in the same concentration 5% Fingerroots extract provides the greatest antibacterial inhibitory activities.

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Determination of Biological Activities of the Root Bark of Senna singueana

Asian Journal of Chemical Sciences ◽

10.9734/ajocs/2020/v7i419029 ◽

2020 ◽

pp. 25-34

Author(s):

Kidanemariam Teklay Hilawea ◽

Zelalem Yibralign Desta

Keyword(s):

Antibacterial Activity ◽

Biological Activities ◽

Total Flavonoid ◽

Diffusion Method ◽

Total Phenolic ◽

Phytochemical Analysis ◽

Root Bark ◽

Total Flavonoid Content ◽

Flavonoid Content

Aims: Senna singueana is a medicinal plant which is used for the treatment of different kinds of diseases and the plant was selected for the study because of its numerous uses. The main objective of this study was to determine the antioxidant and antibacterial activity of the extracts of the root barks of S. singueana. Methodology: The antibacterial activities of the extracts (determination of Minimal Inhibitory “MIC” and Minimal Bactericidal Concentration “MBC”) were determined by using agar well diffusion method. In addition to this the total flavonoid and total phenolic contents were determined by using aluminum chloride colorimetric complex assay and Folin-Ciocalteu method respectively. Results: Our results revealed that the total flavonoid content of the extracts is ranged from 30.39 mgQE/100 g to 240.83 mgQE/100 g. The extracts also showed good antioxidant activity and total phenolic content as well as weak to moderate antibacterial activity against some bacteria. Conclusions: The extracts of the root bark of Senna sinueana showed good total flavonoid content, DPPH radical scavenging activity and antibacterial activity. In addition to this, the extracts also showed the presence of some important compounds by phytochemical analysis.

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Skrining Fitokimia dan Uji Aktivitas Antibakteri Fraksi Etil Asetat dan n-Heksana dari Daun Mangga Kasturi (Mangifera casturi Kosterm.)

KOVALEN ◽

10.22487/kovalen.2021.v7.i3.15599 ◽

2021 ◽

Vol 7 (3) ◽

pp. 227-233

Author(s):

Dwi Lestari ◽

Desy Fitriani ◽

Serli Anngraeni

Keyword(s):

Antibacterial Activity ◽

Ethyl Acetate ◽

Propionibacterium Acnes ◽

Ethyl Acetate Fraction ◽

Diffusion Method ◽

Phytochemical Screening ◽

Disk Diffusion Method ◽

Study Results ◽

Mango Leaves ◽

Weak Antibacterial Activity

Kasturi mango (Mangifera casturi Kosterm.) is a typical mango of South Kalimantan. Kasturi mango leaves are reported to have antioxidant activity and are potential for treating various diseases, including diseases related to antibacterial. This study examines the antibacterial activity of ethyl acetate fraction and the n-hexane fraction of mango musk leaves on bacteria that cause acne. Experimental research started with plant determination, making extracts and fractions, phytochemical screening, and antibacterial testing against Staphylococcus aureus and Propionibacterium acnes using the disk diffusion method. The study results found that the ethyl acetate and n-hexane fractions had weak antibacterial activity against S. aureus and P. acnes bacteria, which cause acne

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One Pot Microwave Induced Synthesis, Characterization and Antibacterial Activity of Tetrazamacrocyclic Complexes of Transition Metal Ions of Bio-Inorganic Relevance

Asian Journal of Chemistry ◽

10.14233/ajchem.2019.22110 ◽

2019 ◽

Vol 31 (10) ◽

pp. 2211-2214

Author(s):

Devendra Kumar ◽

Saraswati

Keyword(s):

Antibacterial Activity ◽

Copper Complexes ◽

Transition Metal Ions ◽

Irradiation Condition ◽

Diffusion Method ◽

Spectral Studies ◽

One Pot ◽

Disk Diffusion Method ◽

Elemental Analyses

Two new series of metal complexes, [M(C18H16N4O4)·2H2O] (CH3COO−)2 and [M(C22H24N4)·2H2O](CH3COO−)2, where M= Co2+/Ni2+/ Cu2+ have been prepared under microwave irradiation condition using microwave synthesizer. All the synthesized compounds were characterized by melting point determination of recrystallized samples, running single spot on TLC, elemental analyses, IR, UV-visible spectral studies. Synthesized macrocyclic complexes have been tested for their antibacterial activity against two bacteria Klebsiella pneumoniae and Escherichia coli by adopting disk diffusion method. The antibacterial activity was compared with amikacin antibiotic and it has been found that the complexes exhibited potential antibacterial activity. From the antibacterial studies, it has been found that the copper complexes were more effective on the microorganism in comparison to Ni(II) and Co(II) complexes.

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Potensi Ekstrak Teripang Stichopus hermanii, Semper 1868 (Holothuroidea : Stichopodidae) sebagai Penghasil Senyawa Antibakteri terhadap Streptococcus mutans Clarke, 1924 (Bacilli : Streptococcaceae)

Journal of Marine Research ◽

10.14710/jmr.v10i3.31097 ◽

2021 ◽

Vol 10 (3) ◽

pp. 421-427

Author(s):

Rika Monika ◽

Delianis Pringgenies ◽

Wilis Ari Setyati

Keyword(s):

Antibacterial Activity ◽

Streptococcus Mutans ◽

Sea Cucumber ◽

Diffusion Method ◽

Marine Biota ◽

Phytochemical Screening ◽

Zone Of Inhibition ◽

Active Compounds ◽

Activity Test

Teripang Stichopus hermanii merupakan biota laut yang mempunyai senyawa dengan bioaktivitas sebagai antibakteri terhadap patogen. Stichopus hermanii mampu menghambat bakteri gram positif dan negatif. Produk teripang yang sudah ada banyak memperlihatkan manfaatnya salah satunya untuk gigi. Produk komersil yang terlihat di masyarakat yakni pasta gigi, namun belum diketehaui secara mendetail mengenai seberapa besar peran pasta gigi tersebut dalam mengatasi permasalahn gigi. Tujuan dari penelitian ini untuk mengetahui senyawa yang aktif didalam ekstrak teripang Stichopus hermanii. Metode ekstraksi yakni dengan padat ke cair, pencarian senyawa aktif menggunakan skrining fitokimia dengan pereaksi yang berbeda setiap pengujiannya, dan uji aktivitas antibakteri menggunakan metode difusi agar dengan konsentrasi yang berbeda-beda. Uji aktivitas antibakteri pada ekstrak S. hermanii menggunakan bakteri patogen Streptococcus mutans. Hasil senyawa aktif yang didapat dari skrinining fitokimia meliputi flavonoid, alkaloid, triterpenoid dan saponin. Uji aktivitas antibakteri menunjukkan bahwa ekstrak metanol S. hermanii mampu menghambat bakteri S.mutans. Zona hambat tertinggi pada S. mutans 5,86 mm ± 4,92 dengan konsentrasi 80 µg/disk pada waktu 24 jam. Disimpulkan bahwa senyawa aktif pada ekstrak metanol S. hermanii mempunyai bioaktivitas antibakteri pada bakteri S. mutans. The sea cucumber Stichopus hermanii is a marine biota that has compounds with bioactivity as an antibacterial against pathogens. Stichopus hermanii can inhibit gram-positive and gram-negative bacteria. Sea cucumber products that already exist have shown many benefits, one of which is for teeth. The commercial product seen in the community is toothpaste, but it is not yet known in detail how big the role of toothpaste is in overcoming dental problems. The purpose of this study was to determine the active compounds in sea cucumber extract Stichopus hermanii. The extraction method is solid to liquid, the search for active compounds uses phytochemical screening with different reagents for each test, and the antibacterial activity test uses the agar diffusion method with different concentrations. Antibacterial activity test on S. hermanii extract using the pathogenic bacterium Streptococcus mutans. The results of the active compounds obtained from phytochemical screening include flavonoids, alkaloids, triterpenoids, and saponins. The antibacterial activity test showed that the methanol extract of S. hermanii was able to inhibit S. mutans bacteria. The highest zone of inhibition in S. mutans was 5.86 mm ± 4.92 with a concentration of 80 g/disk at 24 hours. It was concluded that the active compound in the methanolic extract of S. hermanii had antibacterial bioactivity on S. mutans bacteria.

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Aktivitas Antibakteri Ekstrak Etanol Daun Gamal (Gliricidia sepium) pada Berbagai Konsentrasi terhadap Pertumbuhan Bakteri Streptococcus mutans secara In-Vitro

Jurnal Kesehatan ◽

10.26630/jk.v9i3.967 ◽

2018 ◽

Vol 9 (3) ◽

pp. 336

Author(s):

Ni Luh Budi Artaningsih ◽

Nur Habibah ◽

Mastra Nyoman

Keyword(s):

Antibacterial Activity ◽

Streptococcus Mutans ◽

Ethanol Extract ◽

Inhibition Zone ◽

Gliricidia Sepium ◽

Disk Diffusion ◽

Diffusion Method ◽

Disk Diffusion Method ◽

Growth Inhibition Zone

Streptococcus mutans is a positive gram bacteria which cause dental caries. From the several previous studies, Gamal leaf has been predicted as the antibacterial agent because of their active substance such as tannins, alkaloids, saponins, and flavonoids. The objective of the study was to know the antibacterial activity of ethanol extract of Gamal leaf (Gliricidia sepium) for Streptococcus mutans in various concentrations. This study was a true experimental with post-test only control design. The determination of antibacterial activity in this study was conducted by using Kirby Bauer disk diffusion method with the various concentrations, there were 40, 50, 60, 70 and 80%. The positive and negative controls in this study were 30 µg disk diffusion of chloramphenicol and the 96% of ethanol. The average inhibition of zone diameter in the concentrations of 40, 50, 60, 70 and 80% were 11.3, 12.3, 13.4, 15.3 and 19.2 mm, respectively. One Way ANOVA statistical analysis showed that the value of p was 0.000, so there was a difference of growth inhibition zone of Streptococcus mutans in various concentrations of ethanol extract of Gamal leaf (Gliricidia sepium). Based on the result, it can be concluded that the ethanol extract of Gamal leaf (Gliricidia sepium) have strong antibacterial activity, especially to Streptococcus mutans bacteria.

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Antibacterial Activity Test of Ethanol Extract from Dried Simplicia Garlic (Allium sativum L.) Against Bacillus cereus Bacteria

Journal of Pharmaceutical And Sciences ◽

10.36490/journal-jps.com.v3i2.51 ◽

2020 ◽

Vol 3 (2) ◽

pp. 93-99

Author(s):

Athaillah Athaillah ◽

Ugi Diana Lestari

Keyword(s):

Antibacterial Activity ◽

Bacillus Cereus ◽

Allium Sativum ◽

Ethanol Extract ◽

Diffusion Method ◽

Phytochemical Screening ◽

Disk Diffusion Method ◽

Activity Test ◽

Inhibitory Power ◽

Dried Extract

This research is aimed to find out the extract activity dried simplisia of garlic (Allium sativum L.) as an antibacterial which is capable to inhibiting growth of Bacillus cereus bacterium, to find out the alkaloid secondary of metabolites, flavonoid, tannin and saponin that contained in dried extract of garlic and to find out a concentration that has the most antibacterial activity which is capable to inhibiting growth of Bacillus cereus bacterium. Garlic was extracted by maceration method using a solvent ethanol 96%. After the extract obtaned, then phtochemical screening and standardization test. Thickening technique by evaporation used vacum rotary evaporator until thick extarct was obtained. Antibacterial activity thest by using disk diffusion method. This research was used seven concentrations which were 20% (b/v), 30% (b/v). 40% (b/v), 50% (b/v), 60% (b/v), 80% (b/v)and100% (b/v). The result of phytochemical screening test, ethanol extract garlic (Allium sativum L.) positive contained compound alkaloid, flavonoid, saponin and tannin. Standardization of power simplisia fulfill the requirements set by Depkes RI 2000. The result of activity test of optimum antibacterial was obtained inhibitory power with the number 27 mm on 40% (b/v) concentration. This proves that garlic (Allium sativum L.) have antibacterial affects against Bacillus cereus bacterium

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The composition and antibacterial activity of the essential oil of Levisticum officinale Koch. flowers and fruits at different developmental stages

Journal of the Serbian Chemical Society ◽

10.2298/jsc100524126m ◽

2010 ◽

Vol 75 (12) ◽

pp. 1661-1669 ◽

Cited By ~ 13

Author(s):

Mohammad Mirjalili ◽

Peyman Salehi ◽

Ali Sonboli ◽

Javad Hadian ◽

Samad Ebrahimi ◽

...

Keyword(s):

Antibacterial Activity ◽

Essential Oil ◽

Essential Oils ◽

Developmental Stages ◽

Antibacterial Activities ◽

Diffusion Method ◽

Mature Fruit ◽

Disk Diffusion Method ◽

Immature Fruit

The composition and antibacterial activity of the essential oil of Levisticum officinale Koch. at different developmental stages (flower, immature fruit, green mature fruit and ripened fruit) is reported. The essential oils were obtained by hydrodistillation of air-dried samples and their antibacterial activities were tested against seven bacteria. The yield of oil (w/w %) in different stages was in the order: immature fruit (1.5 %) > green mature fruit (1.0 %) > ripened fruit (0.6 %) > flower (0.1 %). The essential oils were analyzed by GC and GC-MS. In total, 27, 31, 28 and 26 constituents were identified and quantified in the mentioned samples, respectively. Monoterpene hydrocarbons were the main group of compounds in the green mature fruit (79.2 %), immature fruit (78.4 %), ripened fruit (75.2 %) and flower (44.0 %). The antibacterial activity of the oils was evaluated by the disk diffusion method using M?ller-Hinton agar and determination of inhibition zones. The results of the bioassays showed some variations between the three tested oils in their inhibitory activity against the tested bacteria at a 10 ?l disc-1 concentration. The oils from mature and ripened fruit exhibited potent antibacterial activity against Bacillus subtilis, with minimum inhibitory concentration (MIC) values of 0.90 mg ml-1 in mature and ripen fruits.

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PHYTOCHEMICAL AND ANTIBACTERIAL ACTIVITY OF HEXANE AND ETHYL ACETATE EXTRACT OF KNOXIA SUMATRENSIS (RETZ.) DC.

Asian Journal of Pharmaceutical and Clinical Research ◽

10.22159/ajpcr.2021.v14i7.39750 ◽

2021 ◽

pp. 35-39

Author(s):

LOGANATHAN S ◽

SELVAM K

Keyword(s):

Antibacterial Activity ◽

Ethyl Acetate ◽

Pathogenic Bacteria ◽

Ethyl Acetate Extract ◽

Standard Procedure ◽

Diffusion Method ◽

Phytochemical Screening ◽

Disk Diffusion Method ◽

Near Future ◽

Ethyl Acetate Extracts

Objective: The study was carried out the phytochemical and antibacterial activity of Knoxia sumatrensis (Retz.) Dc. using hexane and ethyl acetate extracts. Methods: The phytochemical screening was extracted from hexane and ethyl acetate solvent and its screening was analyzed by standard procedure. GC-MS technique was analyzed in ethyl acetate extract to identify the components present in the extract. The hexane and ethyl acetate extract of the plant was tested for antibacterial activity against human pathogenic bacteria using disk diffusion method. Results: The phytochemical screening was revealed the presence of phenols, saponins, flavonoids, cardiac glycosides, steroids, and tannins. The GC-MS results showed that the presence of seven bioactive compounds in ethyl acetate extract. The major compounds were identified such as N-Hexadecanoic Acid (9.336), 2-Piperidinone, N-[4-Bromo-N-Butyl] - (37. 883). The ethyl acetate extract showed good antibacterial activity. The maximum zone of inhibition was noticed in S. aureus (8.25 mm) using ethyl acetate extracts at 50 μg. Conclusion: Thus, this study the information regarding the phytochemical constituents present in the both extract. Hence, it can be used for further therapeutic applications in the near future study.

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Antibacterial activity of ethanol extract of Beluntas leaves on Streptococcus mutans, Porphyromonas gingivalis, and Enterococcus faecalis

Padjadjaran Journal of Dentistry ◽

10.24198/pjd.vol33no3.19133 ◽

2021 ◽

Vol 33 (3) ◽

pp. 191

Author(s):

Dini Sylvana ◽

Masyhudi Amir ◽

Cicih Bhakti Purnamasari ◽

Abdillah Iskandar ◽

Verry Asfirizal

Keyword(s):

Antibacterial Activity ◽

Streptococcus Mutans ◽

Enterococcus Faecalis ◽

Porphyromonas Gingivalis ◽

Ethanol Extract ◽

Inhibition Zone ◽

Diffusion Method ◽

Oral Diseases ◽

Disk Diffusion Method ◽

Post Test

Introduction: Individuals with poor oral health have a greater risk factor for systemic diseases. Caries, periodontal disease, and root canal infections are a common dental and oral diseases caused by dominance of Streptococcus mutans, Porphyromonas gingivalis, and Enterococcus faecalis bacteria (S. mutans, P. gingivalis, and E. faecalis). An alternative way to prevent dental and oral diseases is to use herbal medicine as one of the active ingredients for mouthwash or toothpaste. One of the herbs that can be used is Beluntas leaves (Pluchea indica (L.) Less leaves). The objective of study was to analyze the antibacterial activity of ethanol extract of Pluchea indica (L.) Less leaves on the growth of Streptococcus mutans, Porphyromonas gingivalis, and Enterococcus faecalis. Methods: This research was experimental laboratory with post test only control design, using disk diffusion method. There were five concentrations (2.5, 3.5, 4.5, 5.5 and 6.5%, positive controls, and negative controls. Data analysis was performed using One Way Anova and post Hoc test. Results: The ethanol extract of Pluchea indica (L.) Less leaves has moderate-strong antibacterial activity against Streptococcus mutans, Porphyromonas gingivalis, and Enterococcus faecalis. The largest diameter of inhibitory zone in Enterococcus faecalis at a concentration of 6.5% followed by Streptococcus mutans and Porphyromonas gingivalis at the same concentration and the smallest diameter of inhibition zone in Porphyromonas gingivalis, followed by Enterococcus faecalis and Streptococcus mutans at 2.5% concentration. Conclusion: The ethanol extract of Pluchea indica (L.) Less leaves with a concentration of 2.5, 3.5, 4.5, 5.5, and 6.5% has antibacterial activity in inhibiting the growth of Streptococcus mutans, Porphyromonas gingivalis, and Enterococcus faecalis.

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Evaluation of the in vitro antibacterial activity of some essential oils and their blends against Staphylococcus spp. isolated from episodes of sheep mastitis

RENDICONTI LINCEI ◽

10.1007/s12210-021-00991-5 ◽

2021 ◽

Author(s):

Filippo Fratini ◽

Margherita Giusti ◽

Simone Mancini ◽

Francesca Pisseri ◽

Basma Najar ◽

...

Keyword(s):

Antibacterial Activity ◽

Essential Oils ◽

Diffusion Method ◽

Minimal Bactericidal Concentration ◽

Coagulase Negative Staphylococci ◽

Disk Diffusion Method ◽

In Vitro Antibacterial Activity ◽

High Concentrations ◽

Thymus Serpyllum

AbstractStaphylococcus aureus and coagulase-negative staphylococci are among the major causes of mastitis in sheep. The main goal of this research was to determine the in vitro antibacterial activity of several essential oils (EOs, n 30), then five of them were chosen and tested alone and in blends against staphylococci isolates. Five bacteria were isolated from episodes of ovine mastitis (two S. aureus and three S. xylosus). Biochemical and molecular methods were employed to identify the isolates and disk diffusion method was performed to determine their antimicrobial-resistance profile. The relative percentage of the main constituents in the tested essential oils and their blends was detected by GC-EIMS analysis. Antibacterial and bactericidal effectiveness of essential oils and blends were evaluated through minimal inhibitory concentration (MIC) and minimal bactericidal concentration (MBC). All of them showed sensitivity to the used antimicrobials. The EOs with the highest antibacterial activity were those belonging to the Lamiaceae family characterized by high concentrations of thymol, carvacrol and its precursor p-cymene, together with cinnamon EO, rich in cinnamaldehyde. In terms of both MIC and MBC values, the blend composed by Thymus capitatus EO 40%, Cinnamomum zeylanicum EO 20%, Thymus serpyllum EO 20% and Satureja montana EO 20% was found to be the most effective against all the isolates. Some essential oils appear to represent, at least in vitro, a valid tool against ovine mastitis pathogens. Some blends showed a remarkable effectiveness than the single oils, highlighting a synergistic effect in relation to the phytocomplex.

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