scholarly journals ANTIMICROBIAL ACTIVITY OF HYMENAEA COURBARIL L. FRUIT

2020 ◽  
pp. 200-203
Author(s):  
MARIANA NARVAEZ CORREA ◽  
OSCAR EDUARDO RODRÍGUEZ AGUIRRE ◽  
JANETH DEL CARMEN ARIAS PALACIOS
Keyword(s):  
Escherichia Coli ◽  
Saccharomyces Cerevisiae ◽  
Staphylococcus Aureus ◽  
Pseudomonas Aeruginosa ◽  
Antimicrobial Activity ◽  
Bacillus Subtilis ◽  
Candida Albicans ◽  
Aspergillus Niger ◽  
Hymenaea Courbaril ◽  
Test Conditions

Objective: The assessment of the antimicrobial activity of Hymenaea courbaril L. on different microorganisms was realized with four bacteria, Escherichia coli, Staphylococcus aureus, Bacillus subtilis, and Pseudomonas aeruginosa, two yeasts Candida albicans and Saccharomyces cerevisiae, and finally two filamentous fungi Aspergillus niger. Methods: The method of plates and wells was used, using extracts from the fruit of the plant mentioned above. These extracts were made with different solvents such as hexane, dichloromethane, ethanol, and aqueous. Results: It was determined that the dichloromethane extract of H. courbaril L. has antimicrobial activity against the bacterium S. aureus showing a percentage of inhibition of 1.47%. Conclusions: In comparison to bacteria, fungi do not represent a significant inhibitory capacity which represents that when comparing these extracts of this plant, under the test conditions evaluated, it was presented that they obtained antimicrobial activity against S. aureus.

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 Antimicrobial activity of bioactive component from flower of linum capitatum kit

2004 ◽  
Vol 3 (1) ◽  
pp. 73-77 ◽  
Author(s):  
Slavica Ilic ◽  
Sandra Konstantinovic ◽  
Zoran Todorovic
Keyword(s):  
Escherichia Coli ◽  
Staphylococcus Aureus ◽  
Pseudomonas Aeruginosa ◽  
Antimicrobial Activity ◽  
Candida Albicans ◽  
Aspergillus Niger ◽  
Bioactive Components ◽  
Bioactive Component ◽  
Bacillus Subtilus ◽  
Simplex Virus

Different extracts containing bioactive components and etheric oil of the flowers of Linum capitation kit. (Linacea) of Serbian origin were tested for an Antimicrobial activity against four bacteria (Staphylococcus aureus Escherichia coli, Bacillus subtilus, Pseudomonas aeruginosa), one mold (Aspergillus niger) and one yeast (Candida albicans). The isolated Flavonoids were also tested against Staphylococcus aureus, Escherichia coli Bacillus anhtracis, Pseudomonas aeruginosa, Aspergillus niger, Candida albicans and Herpes simplex virus type.

scholarly journals Investigation of the Antimicrobial Activity of Rhaponticum (Rhaponticum Carthamoides D.C. Iljin) and Shrubby Cinquefoil (Potentilla Fruticosa L.)

Medicina ◽  
2011 ◽  
Vol 47 (3) ◽  
pp. 24 ◽  
Author(s):  
Vilma Jurkštienė ◽  
Alvydas Pavilonis ◽  
Daiva Garšvienė ◽  
Algirdas Juozulynas ◽  
Laimutė Samsonienė ◽  
...  
Keyword(s):  
Escherichia Coli ◽  
Staphylococcus Aureus ◽  
Pseudomonas Aeruginosa ◽  
Antimicrobial Activity ◽  
Bacillus Subtilis ◽  
Candida Albicans ◽  
Klebsiella Pneumoniae ◽  
Bacillus Cereus ◽  
Potentilla Fruticosa ◽  
Rhaponticum Carthamoides

The aim of the study was to determine antimicrobial activity of rhaponticum and shrubby cinquefoil extracts. Material and Methods. Ethanol extract from the leaves of rhaponticum (Rhaponticum carthamoides D.C. Iljin) and shrubby cinquefoil (Potentilla fruticosa L.) was produced at the Department of Food Technology, Kaunas University of Technology. The antimicrobial activity of the viscous extract or rhaponticum and shrubby cinquefoil was evaluated using standard microorganism cultures (bacteria 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 fungi Candida albicans ATCC 60193). The minimum inhibitory concentration (MIC) of the examined preparations was determined. Results. Both studied preparations – rhaponticum (Rhaponticum carthamoides D.C. Iljin) and shrubby cinquefoil (Potentilla fruticosa L.) – demonstrated similar antimicrobial activity. The highest sensitivity to the studied preparations was observed in microbes with eukaryotic cell structure: Candida albicans, which is a fungus, and a spore-forming prokaryotic bacterium, Bacillus cereus. The highest resistance was observed in Escherichia coli and Klebsiella pneumoniae. Conclusions. The studied preparations – viscous extracts of rhaponticum and shrubby cinquefoil – are substances with antimicrobial activity against gram-positive (Staphylococcus aureus and Enterococcus faecalis) and gram-negative (Escherichia coli, Klebsiella pneumoniae, Pseudomonas aeruginosa, and Proteus mirabilis) bacteria, spore-forming bacteria (Bacillus subtilis and Bacillus cereus), and fungi (Candida albicans).

KHẢO SÁT HOẠT TÍNH KHÁNG VI SINH VẬT KIỂM ĐỊNH CỦA LOÀI KÉ HOA ĐÀO (URENA LOBATA L.)

2021 ◽  
Vol 7 (21) ◽  
pp. 183-189
Author(s):  
Thu Hương Trương Thị ◽  
Hoài Vân Trần Thị ◽  
Thùy Dương Trần Thị ◽  
Mai Chu Quỳnh ◽  
Nguyệt Nguyễn Thị
Keyword(s):  
Escherichia Coli ◽  
Saccharomyces Cerevisiae ◽  
Staphylococcus Aureus ◽  
Pseudomonas Aeruginosa ◽  
Candida Albicans ◽  
Aspergillus Niger ◽  
Ethyl Acetate ◽  
Fusarium Oxysporum

Các cặn chiết ethanol tổng, n-hexane, ethyl acetate và 2 hợp chất 5-hydroxy-6,7-dimetoxyflavanon và 3β-hydroxy-urs-12-en-28-oic phân lập được từ loài Ké hoa đào (Urena lobata) thể hiện hoạt tính kháng tốt đối với 2 chủng vi khuẩn Gram (–) (Escherichia coli và Pseudomonas aeruginosa), 2 chủng Gram (+) (Bacillus subtillis và Staphylococcus aureus), 02 chủng nấm sợi (Aspergillus niger và Fusarium oxysporum), 2 chủng nấm men (Candida albicans và Saccharomyces cerevisiae) với đường kính vòng kháng khuẩn từ 8 đến 28 mm.

scholarly journals Actividad antimicrobiana de cuatro plantas del nor-oriente peruano

2009 ◽  
Vol 12 (1) ◽  
pp. 41-47 ◽  
Author(s):  
Julio R. Ruiz Q. ◽  
Mirtha Roque A.
Keyword(s):  
Escherichia Coli ◽  
Staphylococcus Aureus ◽  
Pseudomonas Aeruginosa ◽  
Bacillus Subtilis ◽  
Candida Albicans ◽  
Aspergillus Niger ◽  
Staphylococcus Epidermidis ◽  
Microsporum Canis ◽  
Terminalia Catappa

Se investigó la actividad antimicrobiana in vitro de los extractos metanólicos, etanólicos e hidroalcohólicos de cuatro plantas del nor-oriente peruano: Cassia reticulata (planta entera), Ilex guayusa Loes (hojas), Piper lineatum (hojas), y Terminalia catappa (hojas). Las especies fueron recolectadas en el departamento de Cajamarca, excepto Terminalia catappa (Amazonas). La actividad antimicrobiana se evaluó mediante el método de difusión en agar. Los microorganismos utilizados fueron las bacterias Staphylococcus aureus, Staphylococcus epidermidis, Pseudomonas aeruginosa, Bacillus subtilis y Escherichia coli; y los hongos Candida albicans, Aspergillus niger y Microsporum canis. De doce extractos investigados, ocho (67%) presentaron actividad antimicrobiana significativa frente a Staphylococcus aureus y Staphylococcus epidermidis y uno (8%) frente a Escherichia coli. De doce extractos investigados, diez (83%) presentaron actividad significativa frente a Candida albicans, y seis (50%) contra Microsporum canis. Los extractos con la mejor actividad actimicrobiana fueron los tres extractos del Piper lineatum; el extracto hidroalcohólico de Cassia reticulata y el hidroalcohólico de Terminalia catappa.

scholarly journals Atividade antimicrobiana in vitro do rizoma em pó, dos pigmentos curcuminóides e dos óleos e dos essenciais da Curcuma longa L.

2008 ◽  
Vol 32 (3) ◽  
pp. 875-881 ◽  
Author(s):  
Lúcia Péret-Almeida ◽  
Cristina da Cunha Naghetini ◽  
Elzíria de Aguiar Nunan ◽  
Roberto Gonçalves Junqueira ◽  
Maria Beatriz Abreu Glória
Keyword(s):  
Escherichia Coli ◽  
Saccharomyces Cerevisiae ◽  
Staphylococcus Aureus ◽  
Bacillus Subtilis ◽  
Candida Albicans ◽  
Aspergillus Niger ◽  
Curcuma Longa ◽  
E Coli ◽  
Salmonella Choleraesuis

Este trabalho teve como objetivo avaliar a atividade antimicrobiana da cúrcuma em pó, da curcumina disponível no comércio, dos pigmentos curcuminóides purificados e dos óleos essenciais da cúrcuma. As amostras foram analisadas quanto aos teores de pigmentos curcuminóides por cromatografia líquida de alta eficiência. O óleo essencial foi também analisado quanto à densidade, índice de refração e perfil das substâncias voláteis por cromatografia gasosa e detector de ionização de chamas. A atividade antimicrobiana in vitro foi determinada pelo método de difusão em ágar com discos de papel estéreis, impregnados com os extratos, sendo os diâmetros dos halos de inibição medidos com paquímetro. Os extratos etanólicos da cúrcuma, da curcumina comercial, e dos pigmentos curcumina e desmetoxicurcumina não inibiram o crescimento de Staphylococcus aureus, Bacillus subtilis, Salmonella choleraesuis, Escherichia coli, Aspergillus niger, Saccharomyces cerevisiae, e Candida albicans. Apenas o extrato etanólico da bisdesmetoxicurcumina apresentou atividade antimicrobiana em relação ao B. subtilis. O óleo essencial da cúrcuma apresentou atividade antimicrobiana para o B. subtilis, S. choleraesuis, E. coli, A. niger e S. cerevisiae, sendo que essa atividade aumentou em função do aumento da concentração. Os halos de inibição, obtidos com o óleo essencial, foram significativos, quando comparados aos respectivos antibióticos tradicionais, cloranfenicol e anfotericina, indicando ser o óleo essencial da cúrcuma um agente antimicrobiano em potencial.

scholarly journals Antimicrobial Activities of Novel Bis-Piperidinium Compounds

2012 ◽  
Vol 61 (3) ◽  
pp. 223-225
Author(s):  
MUHAMMAD JAWWAD SAIF ◽  
MOHAMMED ZUBER ◽  
JAMIL ANWAR ◽  
MUNAWAR ALI MUNAWAR
Keyword(s):  
Escherichia Coli ◽  
Staphylococcus Aureus ◽  
Pseudomonas Aeruginosa ◽  
Antimicrobial Activity ◽  
Bacillus Subtilis ◽  
Candida Albicans ◽  
Antimicrobial Properties ◽  
Antimicrobial Activities ◽  
Alkyl Chains ◽  
Dodecyltrimethylammonium Chloride

The antimicrobial activity of two new series of bis-piperidinium compounds with alkyl chains of different lengths against bacterial (Escherichia coli, Pseudomonas aeruginosa, Staphylococcus aureus and Bacillus subtilis) and fungal strains (Aspergillus flavus, Aspergillus niger, Rhodolorula rubera, Lipomyces lopofera and Candida albicans), are described. Antimicrobial activities of the synthesized compounds were compared to that of dodecyltrimethylammonium chloride. Bis-piperidinium salts possessing 12-16 carbon side chains showed better antimicrobial properties as compared to the standard dodecyltrimethylammonium chloride.

scholarly journals ANÁLISE DA COR E DA ATIVIDADE ANTIMICROBIANA DE MICROCÁPSULAS CONTENDO LACTOFERRINA BOVINA

2014 ◽  
Vol 32 (2) ◽  
Author(s):  
LUCIANA HELENA MAIA PORTE ◽  
MARIA HELENA MIGUEZ ROCHA LEÃO ◽  
ALEXANDRE PORTE
Keyword(s):  
Escherichia Coli ◽  
Staphylococcus Aureus ◽  
Pseudomonas Aeruginosa ◽  
Bacillus Subtilis ◽  
Candida Albicans ◽  
Spray Drying ◽  
Enterococcus Faecium ◽  
Micrococcus Luteus ◽  
Rhodococcus Equi ◽  
Streptococcus Faecium

Lactoferrina bovina (bLF), proveniente do soro de leite, foimicroencapsulada pela técnica de spray drying. Microcápsulascontendo 20 % de bLF foram produzidas, utilizando-se comomaterial de parede dextrina: amido octenilsuccinato (OSA) emdiferentes proporções: 100:00, 75:25, 50:50, 25:75 e 0:100 %.Foram avaliadas a cor e a estabilidade de cor das microcápsulassob armazenamento em ambientes com diferentes umidadesrelativas e a atividade antimicrobiana da lactoferrina liberadadas microcápsulas. As microcápsulas apresentaram cor clara etenderam a escurecer sob armazenamento em ambiente com altaumidade relativa. Verifi cou-se atividade inibitória das microcápsulasde bLF produzidas para diferentes bactérias Gram positivas(Bacillus subtilis CCT 2576, Staphylococcus aureus CCT 2740,Micrococcus luteus CCT 2692, Enterococcus faecium CCT 5079,Streptococcus faecium ATCC 10541, Rhodococcus equi CCT0541), Gram negativas (Pseudomonas aeruginosa ATCC 13388,Salmonella choleraesius CCT 4296, Escherichia coli CCT 0547) elevedura (Candida albicans ATCC 10231). A concentração inibitóriamínima (MIC) das microcápsulas variou de acordo com o microorganismotestado (MIC entre 2,5-100 mg.mL-1). Com exceção deB. subtilis (MIC entre 50-100 mg.mL-1 para as microcápsulas), aconcentração de bLF contida nas microcápsulas necessária parainibir o crescimento dos micro-organismos foi menor do que a bLFnativa. Esses resultados sugerem efeito de potencialização daatividade antimicrobiana da bLF após o processamento por spraydrying.

scholarly journals Spatial Structure and Antimicrobial Activity of Cyclopropane Derivative of Limonene

2018 ◽  
Vol 13 (4) ◽  
pp. 1934578X1801300
Author(s):  
Daniyar Sadyrbekov ◽  
Timur Saliev ◽  
Yuri Gatilov ◽  
Ivan Kulakov ◽  
Roza Seidakhmetova ◽  
...  
Keyword(s):  
Escherichia Coli ◽  
Staphylococcus Aureus ◽  
Pseudomonas Aeruginosa ◽  
Antimicrobial Activity ◽  
Bacillus Subtilis ◽  
Spatial Structure ◽  
Bacterial Strains ◽  
Gram Negative ◽  
X Ray ◽  
Cyclopropane Derivative

A cyclopropane derivative of limonene, (1 S, 4 S, 6 R)-7,7-dichloro-4-[(1 S)-2,2-dichloro-1-methylcyclopropyl]-1-methylbicyclo [4.1.0] heptane (compound 2), was synthesized and its structure was determined by NMR and X-ray crystallographic methods. In addition, an antimicrobial activity of the compound against Gram-positive ( Staphylococcus aureus, Bacillus subtilis) and Gram-negative ( Escherichia coli, Pseudomonas aeruginosa) bacterial strains was also scrutinized.

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