Antimicrobial, antioxidant and cytotoxic properties of Chenopodium glaucum L.

We evaluated phytochemical composition, antibacterial, antifungal, anti-oxidant and cytotoxic properties of aqueous (water) and organic extracts (methanol, ethyl acetate and n-hexane) of Chenopodium glaucum. Highest phenolic content 45 mg gallic acid equivalents (GAE)/g d.w was found in aqueous extract followed by ethyl acetate (41mg GAE/g d.w) and methanol extract (34.46 mg GAE/g d.w). Antibacterial potential of aqueous and organic extracts of C. glaucum was examined against Acinetobacter baumannii, Klebsiella pneumoniae, Escherichia coli and Staphylococcus epidermidis. The aqueous, methanolic, ethyl acetate, and n-hexane extract showed antibacterial activity against A. baumannii, K. pneumoniae, E. coli and S. epidermidis. However, against A. baumannii significantly higher inhibition zone (19 mm and 18.96 mm respectively) was shown by ethyl acetate and methanol extracts. Aqueous extract possessed highest growth inhibition (11 mm) against E. coli. Aqueous, ethyl acetate and methanol extracts showed 9 mm, 10 mm, and 10.33 mm zone of inhibition against the K. pneumoniae. For antifungal activity, the extracts were less effective against Aspergillus niger but showed strong antifungal activity against Aspergillus flavus (A. flavus). The antioxidant activity was measured as DPPH (2, 2-diphenyl-1-picrylhydrazyl), H2O2 and ABTS (2, 2’-azino-bis (3-ethylbenzothiazoline-6-sulfonic acid) scavenging activity of free radicals. All the organic extracts of C. glaucum possessed ABTS, DPPH and H2O2 scavenging properties. The highest cytotoxic activity measured as half maximal inhibitory concentration (IC50) against human lungs carcinoma cells was recorded for methanolic (IC50 = 16 μg/mL) and n-hexane (IC50 = 25 μg/mL) extracts, respectively. The Gas chromatography–mass spectrometry (GC-MS) analysis showed 4 major and 26 minor compounds in n-hexane extract and 4 major and 7 minor compounds in methanol extract of the C. glaucum. It is concluded that aqueous and organic extracts of C. glaucum would be potential therapeutic agents and could be exploited on a pilot scale to treat human pathogenic diseases.

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PHYTOCHEMICAL ANALYSIS AND CONSTITUENTS OF HEXANE EXTRACT OF MELASTOMA MALABATHRICUM L

Journal of Institute of Science and Technology ◽

10.3126/jist.v23i1.22150 ◽

2018 ◽

Vol 23 (1) ◽

pp. 18-25 ◽

Cited By ~ 1

Author(s):

Dil Prakash Giri ◽

Meena Rajbhandari

Keyword(s):

Free Radical ◽

Ethyl Acetate ◽

Methanol Extract ◽

Total Sugar ◽

Hexane Extract ◽

Total Phenolic ◽

Aqueous Methanol ◽

Methanol Extracts ◽

Melastoma Malabathricum ◽

Ms Analysis

Hexane, dichloromethane, ethyl acetate, methanol and 50 % aqueous methanol extracts of leaf, flower and fruit of Melastoma malabathricum were screened for the presence of different classes of phytochemicals. In phytochemical screening, ethyl acetate, methanol and 50 % aqueous methanol extracts showed the presence of phenolics and flavonoids. Glycosides were found only in the 50 % methanol extract of fruit. Free radical scavenging activity of methanol extract of leaf, flower and fruit was determined using 2,2-Diphenyl-1-picrylhydrazyl (DPPH) free radical. Total phenolic content was measured spectrophotometrically using Folin-Ciocalteu, total flavonoids content by using aluminum chloride and total sugar content by using anthrone reagent. Gallic acid was used as a standard for the calibration of phenolics, catechin for flavonoids and glucose for carbohydrates. The highest amount of phenolic was found in the 50 % methanol extract of leaf (242.88 ± 3.52 mg GAE/g extract), the highest amount of flavonoids was found in the ethyl acetate extract of leaf (127.41 ± 6.33 mg CE/g extract). Total sugar in 50 % methanol extract of fruit was found to be 151.12 ± 8.79 mg GE/g extract. Methanol extracts of flower showed the strongest antioxidant activity with IC50 value of 17.23 μg/ml. Silyl derivative of hexane extracts were prepared by using N-methyl-N-(trimetylsilyl) trifluoroacetamide for gas chromatography-mass spectroscopic (GC-MS) analysis. The GC-MS analysis of hexane extract allowed the identification of 17 phyto-constituents by comparing the fragmentation pattern of each component in mass spectrum with the standard NIST mass spectral database.

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Chemical Composition, Phytochemical Screening and Antioxidant Activity of Acmella uliginosa (Sw.) Cass Leaves

Indonesian Journal of Chemistry ◽

10.22146/ijc.21160 ◽

2018 ◽

Vol 16 (2) ◽

pp. 162

Author(s):

Askal Maimulyanti ◽

Anton Restu Prihadi ◽

Iwan Safrudin

Keyword(s):

Antioxidant Activity ◽

Ethyl Acetate ◽

Methanol Extract ◽

Ethyl Acetate Extract ◽

Radical Scavenging ◽

Hexane Extract ◽

Gas Chromatography Mass Spectrometry ◽

Percentage Yield ◽

Phytochemical Constituents ◽

Free Radical Scavenging Assay

Acmella uliginosa (Sw.) Cass is widely used in traditional medicine and used in the treatment of many diseases. Extraction of component in leaves of Acmella uliginosa used methanol, ethyl acetate and n-hexane solvent. The percentage yield of extract from the leaves in methanol, ethyl acetate and n-hexane were 6.50, 0.49, and 0.66, respectively. Analysis of component in various extracts of Acmella uliginosa (Sw.) Cass leaves used Gas Chromatography-Mass Spectrometry (GC-MS). The various classes of phytochemicals were identified from fractions of methanolic leaves extract by GC-MS. Qualitative analysis of phytochemical constituents in methanol, ethyl acetate and n-hexane extract were tannins, flavonoids, saponin, alkaloid and steroid. Antioxidant activity of Acmella uliginosa leaves from Indonesia was carried out by using 1,1,diphenyl-2-picryl-hydrazine (DPPH) free radical scavenging assay. The IC50 of three extract was calculated. A comparative study determined that Acmella uliginosa in ethyl acetate extract showed the highest antioxidant potential (IC50 = 28.09 µg/mL) compared to methanol extract (IC50 = 44.31 µg/mL) and n-hexane extract (181.23 µg/mL) against DPPH free radicals.

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Cornus macrophylla, the Antibacterial Activity of Organic Leaf Extracts and the Characterization of the More Lipophilic Components by GC/MS

Molecules ◽

10.3390/molecules25102395 ◽

2020 ◽

Vol 25 (10) ◽

pp. 2395

Author(s):

Muhammad Akbar ◽

Usman Ali ◽

Tayyaba Khalil ◽

Muhammad Sajjad Iqbal ◽

Awais Amin ◽

...

Keyword(s):

Antibacterial Activity ◽

Ethyl Acetate ◽

Pseudomonas Syringae ◽

Bacterial Species ◽

Erwinia Carotovora ◽

Inhibition Zone ◽

Negative Control ◽

Hexane Extract ◽

Gas Chromatography Mass Spectrometry ◽

Leaf Extracts

In the present study, the antibacterial activity of Cornus macrophylla was examined. Organic solvent extracts of leaves were prepared using methanol, n-hexane, chloroform, and ethyl acetate. Antibacterial activity was examined by using a 100 mg/mL extract concentration. Penicillin was kept as a positive control while dimethyl sulfoxide was taken as a negative control. Methanolic extract exhibited a 21.5, 36.3, 25.3, and 23.7 mm inhibition zone diameter (IZD); n-hexane showed a 33, 40, 32.8, and 28.7 mm IZD; chloroform showed a 18.8, 29, 22.3, and 21.6 mm IZD; and ethyl acetate showed a 23.5, 30.2, 30, and 22.3 mm IZD against Erwinia carotovora, Pseudomonas syringae, Ralstonia solanacearum, and Xanthomonas axonopodis, respectively. The n-hexane extract revealed high antibacterial activity against all bacterial species as compared with methanolic, chloroform, and ethyl acetate extract. Gas Chromatography Mass Spectrometry (GC/MS) analysis of n-hexane extract depicted the presence of 55 compounds. Out of these compounds, one compound, identified as α-amyrin (Mol. wt = 426), exhibited the maximum peak area (32.64%), followed by A’-Neogammacer-22(29)-en-3-ol, acetate, (3.beta.,21.beta.)- (Mol. wt = 468) and β-amyrin (Mol. wt = 426) having peak areas of 25.97 and 6.77%, respectively. It was concluded that the antibacterial activity observed during the present investigation may be due to these compounds.

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Antibacterial and Antioxidant Activity of Green Algae Halimeda gracilis from Seribu Island District

Jurnal Pengolahan Hasil Perikanan Indonesia ◽

10.17844/jphpi.v20i2.17507 ◽

2017 ◽

Vol 20 (2) ◽

pp. 211 ◽

Cited By ~ 4

Author(s):

Abdul Basir ◽

Kustiariyah Tarman ◽

D. Desniar

Keyword(s):

Antioxidant Activity ◽

Ethyl Acetate ◽

Green Algae ◽

Methanol Extract ◽

Bioactive Compound ◽

Inhibition Zone ◽

Ethyl Acetate Fraction ◽

Sample Collection ◽

Methanol Extracts ◽

Antibacterial And Antioxidant Activity

Seaweeds have ecological functions as primary producers in marine waters. It also has an important economic value as a producer of hydrocolloids (alginate, agar and carrageenan) that is used in various industries of food and pharmaceuticals. This study aimed to determine the antibacterial and antioxidant activity of green algae Halimeda gracilis. The study was conducted in several stages, sample collection and preparation, extraction of bioactive compound, fractionation, antibacterial and antioxidant test, and phytochemical. Extraction was done by maceration method using methanol and concentrated by rotary evaporator. The methanol extracts of H. gracilis were tested against Staphylococcus aureus and Escherichia <br />coli. Methanol extract of H. gracilis formed inhibition zone against the test bacteria with diameter of inhibition zone was 10 mm and 6 mm, respectively. After liquid-liquid partition (water: ethyl acetate), inhibition zone was only seen in the ethyl acetate fraction of H. gracilis with diameter of inhibition zone was 6 mm and 7.50±1.71 mm, respectively. Antioxidant test methanol extracts and ethyl acetate fractions of H. gracilis each show IC50 value of 290.49 ppm and 375.50 ppm. Phytochemical test showed methanol extract of H. gracilis contains phenols and steroids.<br /><br />

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Cotoneaster transcaucasicus Pojark. Meyve Ekstraklarında Biyoaktif Bileşen Miktarlarının ve Antioksidan Aktivitelerinin Belirlenmesi

Turkish Journal of Agriculture - Food Science and Technology ◽

10.24925/turjaf.v9i7.1258-1263.4432 ◽

2021 ◽

Vol 9 (7) ◽

pp. 1258-1263

Author(s):

Fatma Ergün

Keyword(s):

Methanol Extract ◽

Antioxidant Activities ◽

Hexane Extract ◽

Total Phenolic ◽

Antioxidant Power ◽

Methanol Extracts ◽

Ic50 Values ◽

Phenolic Substances ◽

Rosaceae Family ◽

Phenolic And Flavonoid

In this study, the total phenolic and flavonoid contents and antioxidant activities of hexane and methanol extracts of Cotoneaster transcaucasicus Pojark. fruits in the Rosaceae family were investigated. Using the Folin-Ciocaltaeu method, the amount of phenolic substances was determined as 50.34 ± 2.70 mg of GAE/g in methanol extract and 38.06 ± 1.32 mg of GAE/g in hexane extract. The total amount of flavonoids was calculated as 52.01 ± 3.78 mg of QE/g in the methanol extract and 60.54 ± 6.82 mg of QE/g in the hexane extract, using the aluminum nitrate method. Antioxidant activities of C. transcaucasicus hexane and methanol extracts were evaluated by DPPH and FRAP methods. IC50 values of the extracts were calculated as 0.411 mg/mL for hexane extract and 0.237 mg/mL for methanol extract. In addition, it was determined that the reducing antioxidant power of Fe3+-Fe2+ was higher in hexane extract. As a result, it has been observed that the phenolic and flavonoid content and antioxidant activities of C. transcaucasicus fruits are high. This study is the first study in C. transcaucasicus species and it is thought that it will lead the future studies.

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Uji Aktivitas Antibakteri Ekstrak Metanol dan Fraksi Daun Kenikir (Cosmos caudatus Kunth) terhadap Salmonella typhi

Pustaka Kesehatan ◽

10.19184/pk.v8i3.13008 ◽

2020 ◽

Vol 8 (3) ◽

pp. 177

Author(s):

Achmad Syarifudin Noor ◽

Bawon Triatmoko ◽

Nuri Nuri

Keyword(s):

Antibacterial Activity ◽

Typhoid Fever ◽

Ethyl Acetate ◽

Methanol Extract ◽

Inhibition Zone ◽

Salmonella Typhi ◽

Diffusion Method ◽

Disk Diffusion Method ◽

Water Fraction ◽

Zone Diameter

The leaves of kenikir are known to have many benefits, one of which can be used as medicine. Kenikir leaves are reported to have antibacterial activity against the bacteria Salmonella typhi (S.typhi). S. typhi is a bacterium that causes typhoid fever. Typhoid fever is still an endemic disease in Asian countries, especially Indonesia. Typhoid fever became the third largest disease in Indonesia in 2010. The study related to the antibacterial activity of kenikir leaf fraction to S. typhi has never been reported. Therefore, it is necessary to conduct research related to the antibacterial activity of extracts and leaf fractions of kenikir to compare their potential against S. typhi. The study was conducted using the disk diffusion method using 5 series of concentrations namely 5%, 10%, 15%, 20%, and 30%. Tests were carried out on methanol extract, hexane, ethyl acetate, and methanol-water fraction. The results showed that highest inhibition zone diameter is 7,75 mm which is reached by methanol extract. The order of the highest inhibiting zone diameter are extract, hexane, ethyl acetate, and methanol-water fraction.

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DETERMINATION OF THE ANTIOXIDANT ACTIVITY OF PRASMAN LEAF EXTRACTS (AYAPANA TRIPLINERVIS [VAHL]) AND THE TOTAL FLAVONOID AND PHENOL CONTENTS OF THE MOST ACTIVE EXTRACTS

International Journal of Applied Pharmaceutics ◽

10.22159/ijap.2020.v12s1.ff021 ◽

2020 ◽

pp. 107-111

Author(s):

YUNITRIANTI ◽

BERNA ELYA ◽

ARIKADIA NOVIANI

Keyword(s):

Antioxidant Activity ◽

Ethyl Acetate ◽

Methanol Extract ◽

Total Flavonoid ◽

Dpph Assay ◽

Frap Assay ◽

Methanol Extracts ◽

Uv Visible ◽

Antioxidant Effects

Objective: Prasman (Ayapana triplinervis [Vahl]) is a plant that can eliminate free radicals through its antioxidant effects. However, little research hasbeen conducted to explore the antioxidant activity of the plant.Methods: A. triplinervis (Vahl) leaves, which were determined by the Indonesian Institute of Sciences (LIPI) Bogor, were used in this study. Meanwhile,extraction was performed using n-hexane, ethyl acetate, and methanol as the solvents. Based on the 2,2-diphenyl-1-picrylhydrazyl (DPPH) assay usinga UV–visible spectrophotometer and based on ferric reducing antioxidant power (FRAP) assay using a microplate reader.Results: Based on the DPPH assay using a UV–visible spectrophotometer, n-hexane, ethyl acetate, and methanol extracts with a final concentrationof 25 μg/mL inhibited DPPH radical production by 38.91, 51.03, and 54.06%, respectively. Using the percent inhibition, the IC50 for the ethyl acetateand methanol extracts were 28.71 and 23.472 μg/mL, respectively. Based on FRAP assay using a microplate reader, the n-hexane, ethyl acetate, andmethanol extracts had ferrous equivalent antioxidant capacity values of 460, 828.99, and 940.22 μmol/g, respectively. The methanol extract had thegreatest antioxidant activity. The ethyl acetate and methanol extracts at the initial concentrations contained total phenol levels of 12.06 and 42.11 mgGAE/g extract, respectively, as well as total flavonoid levels of 3.24 and 3.41 mg QE/g extract, respectively.Conclusion: Based on the determination of phenol and flavonoid levels, the methanol extract had the greatest antioxidant effects.

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Antibacterial Activities of Endophytic Fungi Isolated from Mentha cordifolia Leaves and Their Volatile Constituents

Natural Product Communications ◽

10.1177/1934578x1601100941 ◽

2016 ◽

Vol 11 (9) ◽

pp. 1934578X1601100

Author(s):

Sakon Monggoot ◽

Jariya Burawat ◽

Patcharee Pripdeevech

Keyword(s):

Antibacterial Activity ◽

Ethyl Acetate ◽

Endophytic Fungi ◽

Ethyl Acetate Extract ◽

Inhibition Zone ◽

Antibacterial Activities ◽

Gas Chromatography Mass Spectrometry ◽

High Concentration ◽

Phenyl Ethyl Alcohol ◽

First Time

A total of 17 endophytic fungal isolates were obtained from the leaves of Mentha cordifolia Opiz (Lamiaceae). Seven isolates were identified to the level of genus by using taxonomically relevant morphological traits. Colletotrichum and Phomopsis species were dominant among these strains. All strains were separated from M. cordifolia leaf for the first time. The ethyl acetate extracts of all endophytic fungi were tested for antibacterial activity against Salmonella typhimurium TISTR1166 and Pseudomonas aeruginosa TISTR781. Most endophytes exhibited antibacterial activity. Ustilago sp. MFLUCC15-1024 presented the highest inhibition zone diameter with a MIC of 31.25 μg/mL against the tested pathogens. The chemical composition of the ethyl acetate extract of this strain was investigated using gas chromatography-mass spectrometry. Twenty-one components were identified. 2-Phenylethanol (38.7%), E-ligustilide (12.4%), α-eudesmol (10.2%), β-vetivone (4.6%), β-ylangene (3.7%) and verbanol (3.4%) were the major components of the extract. The strong antibacterial activity of Ustilago sp. MFLUCC15-1024 ethyl acetate extract may be attributed to the presence of a high concentration of bioactive compounds including phenyl ethyl alcohol, E-ligustilide and α-eudesmol. The results indicate that there is high diversity of endophytic fungi in M. cordifolia leaf, and that Ustilago sp. MFLUCC15-1024 strain could be an excellent resource of natural antibacterial compounds.

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POTENSI EKSTRAK DAUN CENDANA (Santalum album L.) SEBAGAI SENYAWA PENGHAMBAT JAMUR Candida albicans

Jurnal Kimia ◽

10.24843/jchem.2019.v13.i02.p06 ◽

2019 ◽

pp. 159

Author(s):

K. Swandiyasa ◽

N. M. Puspawati ◽

I. A. R. A. Asih

Keyword(s):

Antifungal Activity ◽

Methanol Extract ◽

Hexane Extract ◽

Diffusion Method ◽

Santalum Album ◽

Web Database ◽

Nail Diseases ◽

Leaf Powder ◽

Santalum Album L ◽

Crude Methanol Extract

Diseases caused by C. albicans (C. albicans) such as mouth, skin and nail diseases are still commonly found in Indonesia. This study aimed to examine antifungal activity of n-hexane, chloroform, and n-butanol extracts of Santalum album (S.album) leaves in inhibiting the growth of C. albicans and to determine the minimum inhibitory concentration of the most active extract as well as to identify their active compounds. Antifungal activity testing was carried out using disc diffusion method and identification of active compound was performed using LC-MS /MS. Extraction of 1 kg sandalwood leaf powder with methanol yielded 86.80 gram of crude methanol extract. Partiiton 40 gram of the crude methanol extract with n-hexane, chloroform, and n-buthanol gave 12.60, 6.20 and 1.20 g of extracts respectively. The antifungal activity test results revealed that n-hexane extract was the most active in inhibiting the growth of C.albicans with inhibitory diameter of 13 mm as compared to chloroform 9 mm and n-buthanol 8 mm. The active n-hexane extract which is active as an antifungal is then made various variations to obtain a minimum inhibitory. The n-hexane extract, at concentrations of 95, 90 and 85% inhibited the growth of C.albican with inhibitory diameter of 12.04, 15.8, and 13 mm respectively. While at the concentarion of 80 % showed minimum inhibitory diameter of 9.32 mm. Based on analysis mass spectra of two peaks of LC-MS / MS chromatogram with MassLynx V4.1 programe and Chemspider web database suggested the presence of benzofurazan and picolylamine compounds which may contribute to the antifungal activityof n-hexane extract of S.album. Keywords: Sandalwood (Santalum album L.), antifungal, C. albicans, n-Hexane, LC-MS/MS

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SENYAWA ANTIMAKAN TERHADAP Epilachna Sparsa DARI BATANG GAYAM (Inocarpus fagiferus Fosb.)

Jurnal Kimia ◽

10.24843/jchem.2020.v14.i01.p09 ◽

2020 ◽

pp. 51

Author(s):

S. R. Santi ◽

I M. Sukadana ◽

N. N. T. Hanayanthi

Keyword(s):

Ethyl Acetate ◽

Mass Spectra ◽

Methanol Extract ◽

Leaf Tissue ◽

Hexane Extract ◽

Antifeedant Activity ◽

Insecticide Activity ◽

Hexane Extracts ◽

Bottom Side ◽

Crude Methanol Extract

Epilachna sparsa is one of the plant pests that damage the epidermal layer on the bottom side of the leaves, so it can lead to damage of leaf tissue and only the skeleton remains. Gayam (Inocarpus fagiferus) is one of the species of the Legumineceae family which has insecticide activity. This study aims to isolate and identify the antifeedant triterpenoid compound from stem of gayam (Inocarpus fagiferus Fosb.) against Epilachna sparsa larvae. Dried powder of 1200 g gayam stems produced 17.82 g of crude methanol extract with antifeedant activity of 60.74% at a concentration of 5% (w/v) which was further separated by partition to obtain n-hexane, ethyl acetate, and water extracts. Extracts of n-hexane, ethyl acetate, and water at 5% (w/v) concentration showed antifeedant activity of 46.74%, 18.09%, and 8.31% respectively. Futhermore, the most active n-hexane extract was identified by phytochemical tests and LC-MS/MS. The phytochemical test showed n-hexane extract contains triterpenoid compounds. The mass spectra from LC-MS/MS chromatogram peaks with MassLynx V4.1 software and Chemspider database for n-hexane extracts which were previously purified by SPE (Solid method) Phase Extraction) using methanol and dichloromethane (DCM) eluents show the presence of components of flavonol pyrogallol, sucrose2,3,3 ', 4', 6-pentaacetate, soyasaponin I, and a compound with a molecular weight of 685,225 g/mol which cannot be identified further because there is no match spectra with the database. Keywords: antifeedant, Epilachna sparsa, gayam, Inocarpus fagiferus Fosb., triterpenoid.

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