Antimicrobial Activity of Extracts of the Lichen Xanthoparmelia pokornyi and its Gyrophoric and Stenosporic Acid Constituents

2006 ◽  
Vol 61 (5-6) ◽  
pp. 319-323 ◽  
Author(s):  
Mehmet Candan ◽  
Meral Yılmaz ◽  
Turgay Tay ◽  
Merih Kıvança ◽  
Hayrettin Türk
Keyword(s):  
Staphylococcus Aureus ◽  
Antimicrobial Activity ◽  
Bacillus Subtilis ◽  
Candida Albicans ◽  
Aeromonas Hydrophila ◽  
Candida Glabrata ◽  
Proteus Vulgaris ◽  
Ethanol Extracts ◽  
Bacteria And Fungi ◽  
Gyrophoric Acid

The antimicrobial activity of the diethyl ether, acetone, chloroform, petroleum ether, and ethanol extracts of the lichen Xanthoparmelia pokornyi and its gyrophoric acid and stenosporic acid constituents has been screened against some foodborne bacteria and fungi. Both the extracts and the acids showed antimicrobial activity against Aeromonas hydrophila, Bacillus cereus, Bacillus subtilis, Listeria monocytogenes, Proteus vulgaris, Staphylococcus aureus, Streptococcus faecalis, Yersinia enterocolitica, Candida albicans and Candida glabrata. The extracts were inactive against the tested filamentous fungi. The MIC values of the extracts and the acids for the bacteria have also been determined.

The Antimicrobial Activity of Extracts of the Lichen Cladonia foliacea and Its (–)-Usnic Acid, Atranorin, and Fumarprotocetraric Acid Constituents

2004 ◽  
Vol 59 (3-4) ◽  
pp. 249-254 ◽  
Author(s):  
Meral Yılmaz ◽  
Ayşen Özdemir Türk ◽  
Turgay Tay ◽  
Merih Kıvanç
Keyword(s):  
Staphylococcus Aureus ◽  
Antimicrobial Activity ◽  
Bacillus Subtilis ◽  
Aeromonas Hydrophila ◽  
Candida Glabrata ◽  
Usnic Acid ◽  
Proteus Vulgaris ◽  
Pure Compounds ◽  
Ethanol Extracts ◽  
Bacteria And Fungi

The antimicrobial activity of the chloroform, diethyl ether, acetone, petroleum ether, and ethanol extracts of the lichen Cladonia foliacea and its (-)-usnic acid, atranorin, and fumarprotocetraric acid constituents against 9 bacteria and fungi has been investigated. The extracts and pure compounds alone were found active against the same bacteria and the same yeasts. Bacillus cereus, Bacillus subtilis, Staphylococcus aureus, Streptococcus faecalis, Proteus vulgaris, Listeria monocytogenes, Aeromonas hydrophila, Candida albicans, and Candida glabrata growth were inhibited. In addition, the MICs of the extracts, (-)-usnic acid, atranorin and fumarprotocetraric acid were determined.

scholarly journals The Antimicrobial Activity of Extracts of the Lichen Hypogymnia tubulosa and Its 3-Hydroxyphysodic Acid Constituent

2005 ◽  
Vol 60 (1-2) ◽  
pp. 35-38 ◽  
Author(s):  
Meral Yılmaz ◽  
Turgay Tay ◽  
Merih Kıvanç ◽  
Hayrettin Türk ◽  
Ayşen Özdemir Türk
Keyword(s):  
Escherichia Coli ◽  
Staphylococcus Aureus ◽  
Antimicrobial Activity ◽  
Bacillus Subtilis ◽  
Candida Albicans ◽  
Antifungal Activity ◽  
Klebsiella Pneumoniae ◽  
Aeromonas Hydrophila ◽  
Proteus Vulgaris ◽  
Ethanol Extracts

The antimicrobial activity and the MIC values of the diethyl ether, acetone, chloroform, petroleum ether, and ethanol extracts of the lichen Hypogymnia tubulosa and its 3-hydroxyphysodic acid constituent have been investigated against some microorganisms. At least one of the extracts or 3-hydroxyphysodic acid showed antimicrobial activity against Aeromonas hydrophila, Bacillus cereus, Bacillus subtilis, Escherichia coli, Klebsiella pneumoniae, Listeria monocytogenes, Proteus vulgaris, Salmonella typhimurium, Staphylococcus aureus, Streptococcus faecalis, and Candida albicans. No antifungal activity of the extracts has been observed against ten filamentous fungi.

Evaluation of the Antimicrobial Activity of the Acetone Extract of the Lichen Ramalina farinacea and its (+)-Usnic Acid, Norstictic Acid, and Protocetraric Acid Constituents

2004 ◽  
Vol 59 (5-6) ◽  
pp. 384-388 ◽  
Author(s):  
Turgay Tay ◽  
Ayşen Özdemir Türk ◽  
Meral Yılmaz ◽  
Hayrettin Türk ◽  
Merih Kıvanç
Keyword(s):  
Staphylococcus Aureus ◽  
Antimicrobial Activity ◽  
Bacillus Subtilis ◽  
Candida Albicans ◽  
Yersinia Enterocolitica ◽  
Aeromonas Hydrophila ◽  
Candida Glabrata ◽  
Usnic Acid ◽  
Acetone Extract ◽  
Ramalina Farinacea

The acetone extract of the lichen Ramalina farinacea and its (+)-usnic acid constituent showed antimicrobial activity against Bacillus subtilis, Listeria monocytogenes, Proteus vul­garis, Staphylococcus aureus, Streptococcus faecalis. Yersinia enterocolitica, Candida albicans, and Candida glabrata. Norstictic acid was active against Aeromonas hydrophila as well as the above microorganisms except Yersinia enterocolitica. Protocetraric acid showed activity only against the tested yeasts Candida albicans and Candida glabrata. The MIC values of the extract as well as of the three substances were determined. No antifungal activity of the acetone extract has been observed against ten filamentous fungi.

The Antimicrobial Activity of Extracts of the Lichen Cetraria aculeata and Its Protolichesterinic Acid Constituent

2003 ◽  
Vol 58 (11-12) ◽  
pp. 850-854 ◽  
Author(s):  
Ayşen Özdemir Türk ◽  
Meral Yılmaz ◽  
Merih Kıvanç ◽  
Hayrettin Türk
Keyword(s):  
Escherichia Coli ◽  
Staphylococcus Aureus ◽  
Pseudomonas Aeruginosa ◽  
Antimicrobial Activity ◽  
Bacillus Subtilis ◽  
Listeria Monocytogenes ◽  
Bacillus Cereus ◽  
Aeromonas Hydrophila ◽  
Proteus Vulgaris ◽  
Ethanol Extracts

Abstract In this study, the antimicrobial activity of the acetone, diethyl ether and ethanol extracts of the lichen Cetraria aculeata has been investigated. The extracts were tested against twelve bacteria and eight fungi and found active against Escherichia coli, Staphylococcus aureus, Aeromonas hydrophila, Proteus vulgaris, Streptococcus faecalis, Bacillus cereus, Bacillus subtilis, Pseudomonas aeruginosa, Listeria monocytogenes. No antimicrobial activity against the fungi was detected. It was determined that only one substance in the extracts has antimicrobial activity and it was characterized as protolichesterinic acid. The MICs of the extracts and protolichesterinic acid were also determined.

scholarly journals Antimicrobial activity of soft and purified propolis extracts

Medicina ◽  
2008 ◽  
Vol 44 (12) ◽  
pp. 977 ◽  
Author(s):  
Alvydas Pavilonis ◽  
Algirdas Baranauskas ◽  
Ligita Puidokaitė ◽  
Žaneta Maželienė ◽  
Arūnas Savickas ◽  
...  
Keyword(s):  
Escherichia Coli ◽  
Staphylococcus Aureus ◽  
Pseudomonas Aeruginosa ◽  
Antimicrobial Activity ◽  
Bacillus Subtilis ◽  
Candida Albicans ◽  
Phenolic Compounds ◽  
Klebsiella Pneumoniae ◽  
Gram Negative ◽  
Propolis Extract

Objective. To evaluate the antimicrobial activity of soft and purified propolis extracts. Study object and methods. Antimicrobial activity of soft and purified propolis extracts was determined with reference cultures of Staphylococcus aureus ATCC 25923, Enterococcus faecalis ATCC 29212, Escherichia coli ATCC 25922, Klebsiella pneumoniae ATCC 33499, Pseudomonas aeruginosa ATCC 27853, Proteus mirabilis ATCC 12459, Bacillus subtilis ATCC 6633, Bacillus cereus ATCC 8035, and fungus Candida albicans ATCC 60193. Microbiological tests were performed under aseptic conditions. Minimum inhibitory concentration (MIC) – the highest dilution of preparation (the lowest concentration of preparation) that suppresses growth of reference microorganisms – was determined. Results. Concentration of phenolic compounds in soft propolis extract that possesses antimicrobial activity against gram-positive (Staphylococcus aureus, Enterococcus faecalis) and gram-negative bacteria (Escherichia coli, Pseudomonas aeruginosa, and Proteus mirabilis) is 0.587±0.054 mg and 0.587±0.054–0.394±0.022 mg (P>0.05) and in purified propolis extract – 0.427±0.044 mg and 0.256±0.02 mg (P>0.05). Klebsiella pneumoniae is most resistant to soft propolis extract when the concentration of phenolic compounds is 1.119± 0.152 mg and to purified propolis extract when the concentration of phenolic compounds is 1.013±0.189 mg (P>0.05). Spore-forming Bacillus subtilis bacteria are more sensitive to soft and purified propolis extracts when the concentration of phenolic compounds is 0.134±0.002 mg and 0.075±0.025 mg, respectively, and Bacillus cereus – when the concentration is 0.394±0.022 mg and 0.256±0.02 mg (P>0.05). Sensitivity of fungus Candida albicans to soft and purified propolis extracts is the same as Bacillus subtilis. Encapsulated bacterium Klebsiella pneumoniae is most resistant to antimicrobial action of soft and purified propolis extracts as compared with gram-positive Staphylococcus aureus and Enterococcus faecalis bacteria (P<0.05), gram-negative Escherichia coli, Pseudomonas aeruginosa, and Proteus mirabilis (P<0.05), sporeforming Bacillus subtilis and Bacillus cereus bacteria (P<0.05), and fungus Candida albicans (P<0.05). There is no statistically significant difference between antimicrobial effect of soft propolis extract and purified propolis extract on gram-positive bacteria, gram-negative bacteria, spore-forming bacteria, encapsulated bacteria, and Candida fungus. Conclusions. Soft and purified propolis extracts possess antimicrobial activity. They could be recommended as natural preservatives in the manufacture of pharmaceutical products.

scholarly journals ДОСЛІДЖЕННЯ АНТИБАКТЕРІАЛЬНИХ ВЛАСТИВОСТЕЙ ЕКСТЕМПОРАЛЬНОЇ СУСПЕНЗІЇ З ВІСМУТУ НІТРАТОМ ОСНОВНИМ

2021 ◽  
pp. 33-39
Author(s):  
G. M. Melnyk ◽  
T. H. Yarnykh ◽  
G. B. Yuryeva ◽  
T. P. Osolodchenko
Keyword(s):  
Staphylococcus Aureus ◽  
Pseudomonas Aeruginosa ◽  
Bacillus Subtilis ◽  
Candida Albicans ◽  
Proteus Vulgaris

Мета роботи. Дослідження антибактеріальних властивостей екстемпоральної суспензії з вісмуту нітратом основним для подальшого створення лікарського засобу для застосування в гастроентерології, зокрема терапії пептичних виразок шлунка та дванадцятипалої кишки. Матеріали і методи. Об’єкти дослідження: зразки суспензії з вісмуту нітратом основним виготовлені за традиційною технологією (прийом скаламучення) та із додаванням стабілізатора. Для дослідження антибактеріальних властивостей використали еталонні тест-культури грампозитивних і грамнегативних бактерій, які належать до різних таксономічних груп, зокрема Staphylococcus aureus ATCC 25923, Esсherichia coli ATCC 25922, Pseudomonas aeruginosa ATCC 27853, Bacillus subtilis ATCC6633, Proteus vulgaris ATCC 4636. Протигрибкову дію зразків досліджено на референтному штамі Candida albicans ATCC 885-653. Результати й обговорення. Результати проведених досліджень свідчать, що зразок із вмістом допоміжних речовин виявляє більш виражену антимікробну дію до всіх досліджуваних штамів мікроорганізмів про що свідчить значення діаметра зон затримки росту та часу експозиції порівняно зі зразком, виготовленим за традиційною технологією. Висновки. Доведено антибактеріальну активність зразків екстемпоральної суспензії відносно еталонних тест-культур грампозитивних і грамнегативних бактерій. Встановлено, що вміст допоміжних речовин у складі суспензії не знижує антибактеріальну активність зразка суспензії, а навіть підвищує її майже для всіх штамів мікроорганізмів.

scholarly journals AKTIVITAS ANTIMIKROBA DARI EKSTRAK DAN FRAKSI ORGANISME LAUT SPONS Stylissa carteri YANG DIKOLEKSI DARI PERAIRAN SELAT LEMBEH KOTA BITUNG

PHARMACON ◽  
2019 ◽  
Vol 8 (3) ◽  
pp. 662
Author(s):  
Cavieta C. A. Watupongoh ◽  
Defny S. Wewengkang ◽  
Henki Rotinsulu
Keyword(s):  
Escherichia Coli ◽  
Staphylococcus Aureus ◽  
Antimicrobial Activity ◽  
Candida Albicans ◽  
Extraction Process ◽  
Marine Biota ◽  
Active Compounds ◽  
Stylissa Carteri ◽  
Agar Method ◽  
Ethanol Extracts

ABSTRACTSponge is a multi-cell marine biota whose tissue and organ functions are very simple. Sponges have considerable potentially in producing active compounds that can be used in the pharmaceutical world. This study aimed to determine the presence of antimicrobial activity from extracts and fractions of the Stylissa carteri Sponge on against the microbes of Staphylococcus aureus, Escherichia coli, and Candida albicans. The extraction process was carried out by maceration using ethanol solvent, and fractionation was carried out using methanol, n-hexane and chloroform solvents. Antimicrobial activity was carried out by disk diffusion agar method. The results showed that the crude ethanol extracts and methanol fractions of the Stylissa carteri sponge actively inhibited the growth of Staphylococcus aureus, Escherichia coli, and Candida albicans microbes. Keywords: Stylissa carteri, antimicrobial, Staphylococcus aureus, Escherichia coli, Candida albicans.  ABSTRAKSpons merupakan biota laut multi sel yang fungsi jaringan dan organnya sangat sederhana. Spons memiliki potensi cukup besar dalam  menghasilkan senyawa aktif yang dapat digunakan dalam dunia farmasi. Penelitian ini bertujuan untuk menentukan adanya Aktivitas Antimikroba dari ekstrak dan fraksi Spons Stylissa carteri terhadap mikroba Staphylococcus aureus, Escherichia coli, dan Candida albicans. Dilakukan proses ekstraksi dengan cara maserasi terhadap sampel menggunakan pelarut etanol, dan dilakukan fraksinasi menggunakan pelarut metanol, n-heksan dan kloroform. Aktivitas antimikroba dilakukan dengan metode difusi agar. Hasil penelitian menunjukkan bahwa ekstrak kasar dan fraksi metanol dari spons Stylissa carteri aktif menghambat pertumbuhan mikroba Staphylococcus aureus, Escherichia coli, dan Candida albicans.  Kata Kunci : Stylissa carteri, antimikroba, Staphylococcus aureus, Escherichia coli, Candida albicans.

scholarly journals Atividade antimicrobiana dos extratos metanólicos de diferentes espécies do gênero Lippia

2021 ◽  
Vol 10 (9) ◽  
pp. e22610918051
Author(s):  
Soraya Castro Trindade ◽  
Jurandi Nery Pereira-Filho ◽  
Laerte Oliveira Barreto Neto ◽  
Thais Brito de Oliveira Moura ◽  
Antonio Pedro Fróes de Farias ◽  
...  
Keyword(s):  
Escherichia Coli ◽  
Staphylococcus Aureus ◽  
Pseudomonas Aeruginosa ◽  
Bacillus Subtilis ◽  
Candida Albicans ◽  
Candida Glabrata ◽  
Micrococcus Luteus ◽  
Salmonella Choleraesuis

As espécies do gênero Lippia (Verbenaceae) possuem diversas moléculas bioativas, oriundas do seu metabolismo secundário, que apresentam atividade antimicrobiana, analgésica, antifúngica e imunomoduladora. Este estudo teve como objetivo avaliar a atividade antimicrobiana in vitro do extrato metanólico das folhas de L. alnifolia, L. origanoides, L. insignis e L. thymoides frente a microrganismos de importância clínica.  Foi realizada uma triagem fitoquímica dos extratos das plantas e a avaliação da atividade antimicrobiana pelo método de difusão em disco, além da determinação da concentração inibitória mínima (MIC) frente às bactérias Bacillus subtilis, Escherichia coli, Micrococcus luteus, Pseudomonas aeruginosa, Staphylococcus aureus e Salmonella choleraesuis, e os fungos Candida albicans e Candida glabrata. A presença de saponinas, terpenos, esteroides, cumarinas, ácidos fenólicos e flavonoides foi observada na análise fitoquímica. Os extratos metanólicos das folhas de L. alnifolia, L. origanoides e L. insignis apresentaram atividade antimicrobiana contra todas os microrganismos testados. O extrato metanólico da L. thymoides apresentou atividade antimicrobiana frente aos microrganismos M. luteus, P. aeruginosa, S. aureus, C. albicans e C. glabrata. A maioria dos extratos apresentou atividade bacteriostática e todos os extratos apresentaram atividade fungistática para C. albicans e fungicida para C. glabrata. A utilização dos extratos de Lippia pode ser uma alternativa viável no tratamento de doenças infecciosas de origem bacteriana e fúngica.

Composition and Antimicrobial Activity of Achillea Distans Essential Oil

2011 ◽  
Vol 6 (6) ◽  
pp. 1934578X1100600 ◽  
Author(s):  
Angel Konakchiev ◽  
Milka Todorova ◽  
Bozhanka Mikhova ◽  
Antonina Vitkova ◽  
Hristo Najdenski
Keyword(s):  
Escherichia Coli ◽  
Staphylococcus Aureus ◽  
Antimicrobial Activity ◽  
Candida Albicans ◽  
Essential Oil ◽  
Salmonella Typhimurium ◽  
Moderate Activity ◽  
Proteus Vulgaris ◽  
Oil Composition ◽  
Weak Activity

The essential oil of Achillea distans W. et K. flower heads was analyzed by GC and GC-MS. Altogether 43 components in concentrations more than 0.1% were identified representing 93.5% of the oil composition. The main constituents were 1,8-cineole (16.8%), trans-thujone (9.8%), sabinene (8.2%), borneol (7.5%), β-pinene (6.5%), and camphor (5.8%). The oil showed moderate activity against Staphylococcus aureus and Candida albicans, and weak activity against Salmonella typhimurium, Proteus vulgaris, and Escherichia coli.

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