Anthraquinones Derivatives and Its Antibacterial Properties from Paederia foetida Stems

2019 ◽  
Vol 10 ◽  
Author(s):  
Aryandi Ramadhan ◽  
Agustin Krisna Wardani ◽  
Chi-I Chang
Keyword(s):  
Antibacterial Activity ◽  
Ethyl Acetate ◽  
Bacterial Infections ◽  
Antibacterial Properties ◽  
Positive Control ◽  
Bioactive Constituents ◽  
Chemical Structures ◽  
Normal Phase Hplc ◽  
Paederia Foetida ◽  
Agar Well Diffusion Assay

Background: Paederia foetida (Rubiaceae) locally known as Chinese fever vine is a prominent plant species in the east and south Asia. The extract of paederia foetida Linn. has been used for the treatment of gastric infections or other digestive disorders in Chinese Traditional Medicine. Objective: The main aim of the study was to isolate bioactive constituents of P. foetida stem through a bio-guided assay, then evaluate their antibacterial activity and compare them with standard agents. Materials and Methods: The stems of P. foetida were extracted by methanol and successively partitioned with ethyl acetate and n-butanol. The ethyl acetate layer further fractionated using column chromatography and normal phase HPLC. The chemical structures of the isolated compounds were elucidated through comparison of the 1H and 13C NMR and MS spectral data with the literature. The antibacterial activity of P. foetida stem was evaluated using agar well diffusion assay and resazurin based micro-dilution technique. Results: Ten compounds were isolated from the Chinese fever vine stem including four anthraquinones, morindaparvin A (1), 1,3-dihydroxy-2-methoxyanthraquinone (2), digiferrol (3), and alizarin (4); two steroids, β-sitosterol (5), and stigmastan-3-one (6); two coumarins, scopoletin (7) and fraxidin (8); two aromatics, ferulic acid (9) and vanillic acid (10). The four anthraquinones 1-4 were isolated for the first time from Chinese fever vine stem. Compound 2 and 3 significantly inhibited staphylococcus aureus with MIC values 18.75 and 9.37 μg/mL respectively, and streptomycin (1.8 μg/mL) was used as a positive control. Conclusion: Compound 2 and 3 can be considered as a prospective candidate for the treatment of staphylococcal bacterial infections in both human and animals.

scholarly journals Antibacterial activity of ethyl acetate fraction from methanolic extracts of ant-plant tubers towards Streptococcus sanguis ATCC 10566

2018 ◽  
Vol 30 (3) ◽  
pp. 190
Author(s):  
Fajar Fatriadi ◽  
Dikdik Kurnia ◽  
Mieke Hemiawati Satari
Keyword(s):  
Antibacterial Activity ◽  
Ethyl Acetate ◽  
Antibacterial Properties ◽  
Ethyl Acetate Fraction ◽  
Positive Control ◽  
Chlorhexidine Gluconate ◽  
Streptococcus Sanguis ◽  
Microdilution Method ◽  
Methanolic Extracts ◽  
Natural Remedies

Introduction: Streptococcus sanguis is an initial cause of dental plaque formation which is the initial cause of caries. One of the preventive treatments can be done by using the mouthwash containing antibacterial substances. Along time, natural remedies are proven to be having more antibacterial properties. Ant-plant (Myrmecodia pendens Merr. & Perry) tubers are types of epiphytic plant that grows in many parts of Papua, with many health benefits, and are known to contain flavonoids, tannins, and tocopherols. This study was aimed to determine the antibacterial activity of ethyl acetate fraction from methanolic extracts of ant-plant tubers on the growth of Streptococcus sanguis ATCC 10566. Methods: The ant-plant tubers were extracted with soxhletation method using the methanol solvent. The fractionation was then performed using ethyl acetate to obtain the ethyl acetate fraction. Result: The phytochemical test showed that the ethyl acetate fraction of the ant-plant contained phenolics, tannins, flavonoids, and terpenoids. The bacterial test in this study was using the microdilution method using the ELISA Reader by measuring the Minimum Inhibitory Concentration (MIC) of ethyl acetate fraction of ant-plant tubers towards Streptococcus sanguis with positive control was using the chlorhexidine gluconate as the golden standard medication. The ethyl acetate fraction of ant-plant tuber had an antibacterial effect towards Streptococcus sanguis in the MIC of 31.25 ppm, while chlorhexidine gluconate was 0.49 ppm. Conclusion: The ethyl acetate fraction of ant-plant had a lower antibacterial activity compared to chlorhexidine gluconate on the growth of Streptococcus sanguis ATCC 10566.Keywords: Ant-plant tubers, Myrmecodia pendens Merr. & Perry, antibacterial activity, Streptococcus sanguis ATCC 10566.

Antibacterial Activity and Phytochemical Screening of Erythrina fusca Lour. Leaf Extract (Fabaceae)

2022 ◽  
Vol 16 (1) ◽  
pp. 60
Author(s):  
Adiez Sapura Azmi ◽  
Mohammad Humayoon Amini ◽  
Muhammad Farhan Syakir Nor Azman ◽  
Fatimah Salim ◽  
Ali Jawad
Keyword(s):  
Antibacterial Activity ◽  
Bacterial Infections ◽  
Leaf Extract ◽  
Antibacterial Properties ◽  
Positive Control ◽  
Diffusion Method ◽  
Klebsiella Pneumonia ◽  
Phytochemical Screening ◽  
Antibacterial Screening

Erythrina fusca Lour. (family Fabaceae) is a flowering tree that is locally known as ‘chengkering’. The plant is traditionally used in treatment of some symptoms related to bacterial infections such as wound infections, inflammations, and skin itching. This work reports for the first time in vitro antibacterial screening of the E. fusca Lour. methanolic leaf extract against some common Gram-negative and Gram-positive bacteria such as Klebsiella pneumonia, Proteus vulgaris, Pseudomonas aeruginosa, Bacillus cereus, Bacillus subtilis, and Staphylococcus aureus. The in vitro antibacterial assay was carried out using agar   diffusion method with the extract concentration of 3 mg/well and vancomycin 30 µg/well as the positive control. It was found that the extract exhibits antibacterial effects in range of 10.5 – 14 mm of zone of inhibition (ZOI) against all tested bacteria except for K. pneumoniae. P. aeruginosa showing ZOI of 14 mm was the most sensitive bacterium while P. vulgaris (ZOI of 10.5 mm) was the least sensitive strain to the extract. Based on the preliminary phytochemical screening of using standard qualitative phytochemical tests, this species contains significant amount of alkaloids, flavonoids, terpenoids, and tannins, which might contribute to the antibacterial activity of the extract. Both antibacterial potential and presence of various phytochemicals in the extract could support the traditional uses of E. fusca  , and the obtained results would serve as a basis for further exploration of antibacterial properties of the plant’s leaves.

scholarly journals Profil fitokimia dan aktivitas antibakteri fraksi etil asetat akar jarak pagar (Jatropha curcas Linn.)

2021 ◽  
Vol 2 (2) ◽  
pp. 73-79
Author(s):  
Sudarman Rahman ◽  
Stevin Carolius Angga ◽  
Erwin Prasetya Toepak ◽  
Muhammad Takdir Bachtiar
Keyword(s):  
Antibacterial Activity ◽  
Ethyl Acetate ◽  
Jatropha Curcas ◽  
Bacterial Infections ◽  
Folk Medicine ◽  
Antibacterial Properties ◽  
Ethyl Acetate Fraction ◽  
Inhibitory Zone ◽  
Chronic Infections ◽  
Inhibitory Potency

Bacterial infections are a major cause of chronic infections and mortality that continues to threaten public health worldwide. Various medicinal plants used in folk medicine have demonstrated wound healing and antibacterial properties. The aims of the study are investigation phytochemical and antibacterial activity of ethyl acetate fraction from jarak pagar roots (Jatropha curcas Linn.). The roots were treated with maceration method using ethanol 70% and subsequently fractioned to ethyl acetate fraction. The fractions were used for phytochemical screening and antibacterial assay using Kirby and Bauer agar difussion method. The results showed that ethyl acetate fraction jarak pagar roots contained alkaloid, flavonoids, saponins, steroids, poliphenol dan tannins. The antibacterial activity of jarak pagar roots againts Staphylococcus aureus and Escherichia coli shows that the activity of this fraction with concentration 8 mg/mL has strong inhibitory potency against the growth S. aureus with inhibitory zone is 14,3 mm and has moderate inhibitory potency against E. coli with inhibitory zone is 9 mm. The increase concentrations of ethyl asetate fraction jarak pagar roots shows high inhibition diameter of bacterial growth.  

Fluoroquinolone-3-carboxamide Amino Acid Conjugates: Synthesis, Antibacterial Properties And Molecular Modeling Studies

2020 ◽  
Vol 17 (1) ◽  
pp. 71-84
Author(s):  
Riham M. Bokhtia ◽  
Siva S. Panda ◽  
Adel S. Girgis ◽  
Hitesh H. Honkanadavar ◽  
Tarek S. Ibrahim ◽  
...  
Keyword(s):  
Experimental Data ◽  
Antibacterial Activity ◽  
Amino Acid ◽  
Bacterial Infections ◽  
Antibacterial Agents ◽  
Antibacterial Properties ◽  
Computational Studies ◽  
Protecting Group ◽  
Amino Acid Conjugates ◽  
Molecular Modeling Studies

Background: Bacterial infections are considered as one of the major global health threats, so it is very essential to design and develop new antibacterial agents to overcome the drawbacks of existing antibacterial agents. Method: The aim of this work is to synthesize a series of new fluoroquinolone-3-carboxamide amino acid conjugates by molecular hybridization. We utilized benzotriazole chemistry to synthesize the desired hybrid conjugates. Result: All the conjugates were synthesized in good yields, characterized, evaluated for their antibacterial activity. The compounds were screened for their antibacterial activity using methods adapted from the Clinical and Laboratory Standards Institute. Synthesized conjugates were tested for activity against medically relevant pathogens; Escherichia coli (ATCC 25922), Pseudomonas aeruginosa (ATCC 27856) Staphylococcus aureus (ATCC 25923) and Enterococcus faecalis (ATCC 19433). Conclusion: The observed antibacterial experimental data indicates the selectivity of our synthesized conjugates against E.Coli. The protecting group on amino acids decreases the antibacterial activity. The synthesized conjugates are non-toxic to the normal cell lines. The experimental data were supported by computational studies.

scholarly journals AKTIVITAS ANTIBAKTERI EKSTRAK ETANOL DAN FRAKSI KULIT BATANG BELIMBING WULUH (Averrhoa bilimbi Linn.) TERHADAP BAKTERI Klebsiella pneumoniae DAN Staphylococcus epidermidis BESERTA BIOAUTOGRAFINYA

Biomedika ◽  
2012 ◽  
Vol 4 (2) ◽  
Author(s):  
Dr. Muhtadi , MSi. ◽  
Ria Ambarwati ◽  
Ratna Yuliani
Keyword(s):  
Antibacterial Activity ◽  
Klebsiella Pneumoniae ◽  
Ethyl Acetate ◽  
Staphylococcus Epidermidis ◽  
Antibacterial Properties ◽  
Ethanol Extract ◽  
Ethyl Acetate Fraction ◽  
Diffusion Method ◽  
Disk Diffusion Method ◽  
Water Fraction

Belimbing wuluh (Averrhoa bilimbi Linn.) is a tropical plant that has antibacterial properties. The purpose of this study was to test the antibacterial activity of bark Belimbing wuluh against Klebsiella pneumoniae and Staphylococcus epidermidis and their bioautography. Extraction methods used to research is method maceration with a solvent ethanol 96 %. Fractinations done by method partition liquid-liquid with a separating funnel. Test performed in this research covering identi� cation bacteria, the sensitivity bacteria, antibacterial activity, thin layer chromatography, bioautography. The result of antibacterial activity ethanol extract of disk diffusion method with concentrations 400 μg/disk, 800 μg/disk, 1600 μg/disk is 8±0,5; 10,34±0,58; 12,17±0,76 on Klebsiella pneumoniae, 10,17±0,29; 11±0; 11.5±0 on Staphylococcus epidermidis, n-hexane fraction with concentration 400 μg/disk, 800 μg/disk, 1600 μg/disk is 8,34±0,29; 9,34±0,29; 10,84±0,76 on Klebsialla pneumoniae, 8,5±0,5; 9,34±0,29; 10,67±0,29 on Staphylococcus epidermidis, ethyl acetate fraction with concentration 400 μg/disk, 800 μg/disk, 1600 μg/disk is 9,17±0,29; 10,34±0,29; 11,17±0,29 on Klebsiella pneumoniae and 9,5±0,5; 10,67±0,29; 12,67±1,26 on Staphylococcus epidermidis, ethanol-water fractions with concentration 400 μg/disk, 800 μg/ disk, 1600 μg/disk is 8,17±0,29; 9,17±0,29; 10±0 on Klebsiella pneumoniae, 9±0; 9,67±0,29; 10,34±0,29 on Staphylococcus epidermidis. The TLC show chemical compounds contained in the ethanol extract, n-heksan fraction, ethyl acetate fraction, and ethanol-water fraction is a compound of the saponins, alkaloids, � avonoids and phenolic. Bioautography showed that ethanol extracts, n-heksan faction, ethyl acetate fraction, and etanol-airfaction Belimbing wuluh (Averrhoa bilimbi Linn.) bark have not antibacterial activity because there is no clear area around on plate TLC.Keywords: Belimbing wuluh (Averrhoa bilimbi Linn.), ethanol extract, fractination, antibacterial, bioautogra� .

scholarly journals Antibacterial Activity of Ethyl Acetate and Cream Formulation of Coleus atropurpureus leaves Against Staphylococcus aureus

2021 ◽  
Vol 7 (1) ◽  
pp. 1-8
Author(s):  
Indra Lasmana Tarigan ◽  
◽  
Afidatulx Muadifah ◽  
Nindita Clourisa Clourisa Amaris Susanto ◽  
Choirul Huda ◽  
...  
Keyword(s):  
Staphylococcus Aureus ◽  
Antibacterial Activity ◽  
Ethyl Acetate ◽  
Wound Closure ◽  
Ph Value ◽  
Positive Control ◽  
Cream Formulation ◽  
Closure Time ◽  
Semi Solid

Infectious diseases caused by Staphylococcus aureus (Sa) bacteria reaching 70% of cases in Asia and can attack and survive in epithelial cells including endothelial cells. Attempts to overcome the infection caused by Sa by giving antibiotics, which work as antibacterial. Myana (Coleus atropurpureus L. Benth) leaves contain several active compounds that might act as antibacterial agents. This study aimed to analyze the antibacterial activity of Coleus Extract in vitro and to evaluate the formulation of the extract cream against the bacteria causing infection, Sa. Coleus leaves ethyl acetate extract contains alkaloids and tannins, the absorbance of Sa at the 3rd hour was getting smaller, from 0.668 to 0.552, this showed that the longer the incubation time of the extract against bacterial inoculation, the more bacteria died. Our cream formulation with criteria: the pH value, homogeneity, spreadability, adhesion, and protection power. Our cream formulation results were then evaluated based on the standard, with criteria: the pH value, homogeneity, spreadability, adhesion, and protection power. It seems that our cream is per the cream standards. It is semi-solid, brownish-white in color, smells typical of Coleus, and pH 6. Moreover, the cream is homogeneous with 5 cm of spreadability, 7 seconds for adhesion, and colorless. Moreover, we found that Coleus extract cream has better antibacterial activity than positive control with a wound closure time of 7-14 days for extract while more than 14 days for positive control.

scholarly journals In Vitro and FTIR Spectroscopy: Local Black Fruit Seed Extract as Antibacterial Aeromonas Hydrophila

2021 ◽  
Vol 15 ◽  
pp. 92-98
Author(s):  
Yori Turu Toja ◽  
Eddy Suprayitno ◽  
Aulanni’am ◽  
Uun Yanuhar
Keyword(s):  
Antibacterial Activity ◽  
Ethyl Acetate ◽  
Aeromonas Hydrophila ◽  
Antibacterial Properties ◽  
Inhibition Zone ◽  
Seed Extract ◽  
Water Fraction ◽  
Natural Treatment ◽  
Ft Ir

Indonesia has many local plants with potential as herbal antibacterial properties, one of which is the local black fruit of Wandama. The objective of this study is to determine the antibacterial activity of the extract of black fruit seed against A. Hydrophila by in vitro and FTIR by Tilapia. The benefit of this research is to make black fruit seed extract as a natural remedy against tilapia attacked by Aeromonas Hydrophila. The antibacterial activity of black fruit seed extract against A. Hydrophila is investigated in vitro and using FTIR on tilapia in this research. The aim of this study is to establish black fruit seed extract as a natural treatment for tilapia infected with Aeromonas Hydrophila. The disc approach was used to conduct the in vitro research. Agar medium was poured into a sterile petri dish, and 2 drops of bacteria from the liquid medium were uniformly distributed and cooled. On the press, disc paper with black fruit seed extract was put and incubated for 18-24 hours at 35 C. An FTS 1000 version spectrophotometer system was used for the FTIR test. For the FT-IR study, a fraction of dried black fruit seeds was used. For clear preparation, 100 mg of dry extract is condensed in KBr pellets. A specimen of loaded black fruit seed samples was analyzed using FT-IR spectroscopy with a scanning range of 400-4000 cm-1 and a resolution of 4 cm-1. The results showed that the ethyl acetate fraction produced an inhibition zone (13.65 mm), the water fraction produced an inhibition zone (11.21 mm), and the n-hexane fraction produced the weakest inhibition zone (11.21 mm) (5.31mm). The concentration test results from 125 ppm, 250 ppm, 500 ppm and 1000 ppm obtained a large inhibition zone at a concentration of 1000 ppm with an inhibition zone area of 11.43 + 0.02. The absorbance value of black fruit seed extract in ethyl acetate solvent at 3430 cm-1 revealed the absorption band with the strongest vibration of the hydroxylate (-OH) functional group, according to FTIR research. Final thoughts with an average value of 13.65 + 0.06, black fruit seed extract using ethyl acetate can inhibit A. Hydrophila bacteria.

scholarly journals Antibacterial Activity of Liverworts of Dumortiera hirsute (Sw.) Nees Ethyl Acetate Extract Against Pathogenic Bacteria

2021 ◽  
Vol 9 (2) ◽  
pp. 75
Author(s):  
Luthfiah Luthfiah ◽  
Dwi Setyati ◽  
Sattya Arimurti
Keyword(s):  
Escherichia Coli ◽  
Antibacterial Activity ◽  
Ethyl Acetate ◽  
Pathogenic Bacteria ◽  
Ethyl Acetate Extract ◽  
Antibacterial Properties ◽  
Salmonella Typhi ◽  
Diffusion Method ◽  
E Coli ◽  
Agar Well Diffusion Method

Dumortiera hirsuta is one of the liverworts that can be used as a medicinal to prevent infection by pathogenic bacteria. The content of secondary metabolites of D. hirsuta has potential as antibacterial properties includes flavonoids, alkaloids and steroids. This research is to analyze the antibacterial activity of moss D. hirsuta against pathogenic bacteria that will be beneficial to humans. Liverworts of D. hirsuta were extracted using ethyl acetate solvent and tested against three types of pathogenic bacteria using the agar well-diffusion method. The results of this study indicated that the ethyl acetate extract of D. hirsuta at 100% concentration could inhibit the growth of Escherichia coli, Staphylococcus aureus, and Salmonella typhi bacteria. The range of antibacterial activity categories of the ethyl acetate extract of D. hirsuta to E. coli, S. aureus, and S. typhi between weak to moderate.

scholarly journals Antibacterial Activity of Endophytic Fungi from Sembukan (Paederia foetida L.) Leaves

2021 ◽  
Vol 6 (3) ◽  
pp. 189-195
Author(s):  
Hary Widjajanti ◽  
Christina Vivid Handayani ◽  
Elisa Nurnawati
Keyword(s):  
Antibacterial Activity ◽  
Secondary Metabolites ◽  
Endophytic Fungi ◽  
Antimicrobial Agents ◽  
Antibacterial Properties ◽  
Antibacterial Activities ◽  
In Vitro Tests ◽  
E Coli ◽  
Paederia Foetida

The antibiotic resistance of phatogenic bacteria has become a serious health problem and has encouraged the search for novel and effective antimicrobial metabolites. Meanwhile, endophytic fungi have great potential as a natural source for antimicrobial agents. The endophytic fungi that live in plant tissue produces secondary metabolites which potentially act as an antibacterial compound. The isolation of fungi for antibacterial sources reduces the large amount of plant as a source of antibacterial agents. Hence, this study aims to obtain endophytic fungi isolates from Paederia foetida L. that are capable of producing secondary metabolites as antibacterial, carry out in vitro tests to verify the antibacterial properties of secondary metabolites of the Paederia foetida L. endophytic fungi, and identify the potential of Paederia foetida L. endophytic fungi in producing antibacterial compounds. The antibacterial activity was tested against Escherichia coli ATCC8739 and Staphylococcus aureus ATCC6538 while seven isolates of endophytic fungi that potentially produced antibacterial were obtained from Sembukan (P. foetida L.). The results showed that antibacterial activities of SL1, SL4 and SL6 secondary metabolites against S. aureus ATCC6538 and E. coli ATCC8739 were moderate to strong activities. Furthermore, the Minimum Inhibition Concentration (MIC) of secondary metabolites extract of SL1 against S. aureus ATCC6538 value was 250 ????g/mL while the values of MIC extract of SL4 against S. aureus ATCC6538 and E. coli ATCC8739 were 125 ????g/mL and 250 ????g/mL respectively and MIC extract of SL6 against E. coli ATCC8739 value was 125 ????g/mL. The secondary metabolites extract of SL1 isolate were alkaloid and tannin, SL4 were phenolic and alkaloid while SL6 isolate were alkaloid and terpenoid. Hence, endophytic fungi SL1 isolate was identified as Fusarium sp., SL4 as Dematophora sp., and SL6 isolate as Acremonium sp.

scholarly journals Antibacterial properties of an Indian traditional medicinal plant, Rhynchosia scarabaeoides (L.) DC. (Fabaceae)

2011 ◽  
Vol 1 (1) ◽  
pp. 17 ◽  
Author(s):  
Surekha Challa ◽  
Kiran K. Rajam ◽  
Vishnu V. V. Satyanarayana Kasapu ◽  
Suresh Kumar Tanneeru ◽  
Venkata Siva Satyanarayana Kantamreddi
Keyword(s):  
Ethyl Acetate ◽  
Bacterial Infections ◽  
Antibacterial Properties ◽  
Inhibition Zone ◽  
Antibacterial Activities ◽  
Traditional Healers ◽  
Diffusion Method ◽  
Bacterial Strains ◽  
Plant Parts ◽  
Ethanol Extracts

<em>Rhynchosia scarabaeoides </em>(L.) DC plant parts are extensively used by traditional healers in India to treat a variety of bacterial diseases, such as dysentery, diarrohea and skin disorders. This article reports the antibacterial activities of n-hexane, ethyl acetate and ethanol extracts belonging to the leaf, stem and root parts of <em>R. scarabaeoides</em> against five bacterial strains, <em>Bacillus subtilis</em>, <em>Escherichia coli</em>, <em>Klebseilla pneumonia</em>, <em>Proteus vulgaris</em> and <em>Staphylococcus aureus</em>, using an agar gel diffusion method. The range of inhibition zone (IZ) was found to be 15-24 mm and the minimum inhibitory activity (MIC) was found to be 1 mL/well. The IZ was found to be higher in ethyl acetate extracts while this was moderate in ethanol extracts, and no activity was seen with n-hexane extracts or root extracts. The MIC value of leaf ethyl acetate extract was found to be 1 mg against bacterial strains <em>P. vulgaris</em> and <em>S. aureus</em>, whereas 2 mg was found against <em>B. subtilis</em>, <em>K. pneumoniae</em> and <em>E. coli</em>. These results support the traditional usage of R. scarabaeoides plant parts in the treatment of bacterial infections. Interestingly, this plant was screened for antibacterial activity for the first time and was found to be active. Detailed chemical investigations are, therefore, warranted.

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