scholarly journals Chemical composition, biological potentials and antimicrobial activity of wild and cultivated blackberries

2018 ◽  
pp. 65-79
Author(s):  
Miodrag Jazic ◽  
Jelena Vulic ◽  
Zoran Kukric ◽  
Ljiljana Topalic-Trivunovic ◽  
Aleksandar Savic
Keyword(s):  
Escherichia Coli ◽  
Staphylococcus Aureus ◽  
Antimicrobial Activity ◽  
Ascorbic Acid ◽  
Chemical Composition ◽  
Dry Matter ◽  
Chemical Compositions ◽  
Antibacterial And Antifungal Activity ◽  
Thornless Blackberry ◽  
Antibacterial And Antifungal

The aim of this study was to compare the chemical compositions and biological potentials (antioxidant potentials, ?-glucosidase test and antimicrobial activity) of wild and cultivated blackberry varieties from two different locations. The chemical compositions were evaluated in fresh samples, while the biological potentials were measured in dry blackberry extracts. The highest dry matter (15.73 g/100 g fw) was obtained for wild blackberry from Verici (Bw2). The significantly higher content of sugars (6.07 g/100 g fw) and ascorbic acid (21.36 g/100 g dw) was found in Chester Thornless blackberry (Bc1) comparing to other samples. The wild blackberry from Javorani (Bw1) showed the highest amount of polyphenols, as well as antioxidant potentials on DPPH (184.26 mmol Trolox/kg dw), ABTS (340.26 mmol Trolox/kg dw) and OH (944.03 mmol BHT/kg dw) radicals. The antihyperglycemic potentials of the extracts were determined by the ?-glucosidase test. The cultivated blackberry Cacanka Bestrna (Bc2) showed the stronger inhibition of ?-glucosidase enzyme (?-GIP = 50.69 %) than other varieties (p<0.05). Wild blackberry extracts showed higher antibacterial and antifungal activity towards Staphylococcus aureus, Escherichia coli, and Aspergillus niger. The results presented in this study indicated the differences between wild and cultivated blackberry varieties, as well as mutual differences in chemical composition, polyphenol contents, biological potentials, along with the antimicrobial activity of wild and cultivated blackberry varieties from two different locations in Bosnia and Herzegovina.

Substituted 4-Formyl-2H-chromen-2-ones: Their Reaction with N-(2,3,4,6-Tetra-Oacetyl- β-D-galactopyranosyl)thiosemicarbazide, Antibacterial and Antifungal Activity of Their Thiosemicarbazone Products

2020 ◽  
Vol 24 (19) ◽  
pp. 2272-2282
Author(s):  
Vu Ngoc Toan ◽  
Nguyen Minh Tri ◽  
Nguyen Dinh Thanh
Keyword(s):  
Escherichia Coli ◽  
Staphylococcus Aureus ◽  
Candida Albicans ◽  
Selenium Dioxide ◽  
Antibacterial And Antifungal Activity ◽  
E Coli ◽  
Antibacterial And Antifungal Activities ◽  
Alkyl Ethers ◽  
Antibacterial And Antifungal

Several 6- and 7-alkoxy-2-oxo-2H-chromene-4-carbaldehydes were prepared from corresponding alkyl ethers of 6- and 7-hydroxy-4-methyl-2-oxo-2H-chromen-2-ones by oxidation using selenium dioxide. 6- and 7-Alkoxy-4-methyl-2H-chromenes were obtained with yields of 57-85%. Corresponding 4-carbaldehyde derivatives were prepared with yields of 41-67%. Thiosemicarbazones of these aldehydes with D-galactose moiety were synthesized by reaction of these aldehydes with N-(2,3,4,6-tetra-O-acetyl-β-Dgalactopyranosyl) thiosemicarbazide with yields of 62-74%. These thiosemicarbazones were screened for their antibacterial and antifungal activities in vitro against bacteria, such as Staphylococcus aureus, Escherichia coli, and fungi, such as Aspergillus niger, Candida albicans. Several compounds exhibited strong inhibitory activity with MIC values of 0.78- 1.56 μM, including 8a (against S. aureus, E. coli, and C. albicans), 8d (against E. coli and A. niger), 9a (against S. aureus), and 9c (against S. aureus and C. albicans).

scholarly journals Chemical Composition and Antimicrobial Activity of the Essential Oil from Chaerophyllum Aureum L. (Apiaceae)

2009 ◽  
Vol 4 (1) ◽  
pp. 1934578X0900400 ◽  
Author(s):  
Branislava Lakušić ◽  
Violeta Slavkovska ◽  
Milica Pavlović ◽  
Marina Milenković ◽  
Jelena Antić Stanković ◽  
...  
Keyword(s):  
Escherichia Coli ◽  
Staphylococcus Aureus ◽  
Antimicrobial Activity ◽  
Candida Albicans ◽  
Chemical Composition ◽  
Micrococcus Luteus ◽  
Bacterial Strains ◽  
Gram Negative ◽  
Gram Positive Bacteria ◽  
Aerial Parts

The essential oils of the aerial parts and fruits of Chaerophyllum aureum L., collected from two mountains in Serbia, were analyzed by GC and GC/MS. Sabinene (18.5-31.6%), p-cymene (7.9-25.4%) and limonene (1.9-10.9%) were characterized as the main constituents. The oils were tested against six bacterial strains and one strain of yeast, Candida albicans. The highest antimicrobial activity was observed against the Gram-positive bacteria Staphylococcus aureus, S. epidermidis and Micrococcus luteus, while of the Gram-negative strains, Escherichia coli was the most sensitive.

scholarly journals Antibacterial and Antifungal Activity of Zinc(II) Carboxylates With/Without N-Donor Organic Ligands

2002 ◽  
Vol 8 (5) ◽  
pp. 269-274 ◽  
Author(s):  
V. Zelenák ◽  
K. Györyová ◽  
D. Mlynarcík
Keyword(s):  
Escherichia Coli ◽  
Staphylococcus Aureus ◽  
Biological Activity ◽  
Candida Albicans ◽  
Antifungal Activity ◽  
Organic Ligands ◽  
Antibacterial And Antifungal Activity ◽  
Bacterial Strains ◽  
Structural Types ◽  
Antibacterial And Antifungal

The antibacterial and antifungal activity of zinc(II) carboxylates with composition Zn(RCOO)2•nH2O(R =H-, CH3− , CH3CH2CH2- , (CH3)2CH- , XCH2- , X=Cl, Br, I, n=0 or 2), [ZnX2(Nia+CH2COO-)2] (Nia=nicotinamide, X=Cl, Br, I) and [Zn(XCH2COO)2(Caf)2]•2H2O (Car=caffeine, X=Cl, Br) is studied against bacterial strains Staphylococcus aureus, Escherichia coli and yeast Candida albicans. The structural types are assigned to the prepared compounds and the influence of (i) carboxylate chain length, (ii) substitution of hydrogen atom of carboxylate by halogen and (iii) presence of N-donor organic ligands on the biological activity is discussed.

scholarly journals CHEMICAL COMPOSITION AND ANTIMICROBIAL ACTIVITY OF THE ESSENTIAL OILS OF FOUR VARIETIES OF LIPPIA MULTIFLORA IN BENIN

2019 ◽  
Author(s):  
GANDONOU Dossa Clément ◽  
BAMBOLA Bouraïma ◽  
TOUKOUROU Habib ◽  
GBAGUIDI Ahokannou Fernand ◽  
DANSOU Christian ◽  
...  
Keyword(s):  
Escherichia Coli ◽  
Staphylococcus Aureus ◽  
Gas Chromatography ◽  
Pseudomonas Aeruginosa ◽  
Antimicrobial Activity ◽  
Chemical Composition ◽  
Essential Oils ◽  
Diffusion Method ◽  
Lippia Multiflora ◽  
Natural Substances

Present study involves the study of the chemical composition of the essential oils extracted from the leaves by gas chromatography and gas chromatography coupled with mass spectrometry of Lippia multiflora harvested in the regions of Kétou, Savalou, Bohicon and Mono and tested by the well diffusion method against pathogenic microorganisms. The essential oils studied are terpene compounds, aromatic compounds, aliphatic compounds and other natural substances. The inhibition zone diameters determined allowed us to evaluate their degree of germ sensitivity of the strains tested. Essential oils extracted from Lippia multiflora harvested in these areas have the most pronounced antimicrobial activity. In total, the essential oils tested have different and specifically a degree of sensitivity against Staphylococcus aureus ATCC 25923, Escherichia coli ATCC 25922, Proteus mirabilis A24974, Staphylococcus aureus, Escherichia coli, Klebsiella pneumoniae and Pseudomonas aeruginosa except that harvested in the Savalou who does not have no degree of sensitivity on Pseudomonas aeruginosa. This work paves the way for food preservation with extracted natural substances and also the formulation of natural antimicrobials for this fact.

Chemical Composition and Antimicrobial Activity of Salvia x jamensis Essential Oil

2012 ◽  
Vol 7 (9) ◽  
pp. 1934578X1200700 ◽  
Author(s):  
Daniele Fraternale ◽  
Guido Flamini ◽  
Angela Bisio ◽  
Maria Cristina Albertini ◽  
Donata Ricci
Keyword(s):  
Escherichia Coli ◽  
Staphylococcus Aureus ◽  
Pseudomonas Aeruginosa ◽  
Antimicrobial Activity ◽  
Chemical Composition ◽  
Essential Oil ◽  
Bacillus Cereus ◽  
Enterobacter Cloacae ◽  
Caryophyllene Oxide ◽  
First Report

This is the first report about the composition of the essential oil of Salvia x jamensis. The major compounds identified by GC-MS were β-caryophyllene (14.8 %), β-pinene (6.8 %), caryophyllene oxide (6.0 %), δ-cadinene (5.5 %), α-pinene (5.2 %) and spatulenol (5.2 %). The oil showed antimicrobial activity against three Gram (+) bacteria: Bacillus cereus, Staphylococcus aureus, and S. epidermidis, and three Candida strains: C. albicans, C. glabrata and C. tropicalis, while it was inactive against three Gram (-) bacteria: Pseudomonas aeruginosa, Escherichia coli and Enterobacter cloacae.

scholarly journals ANTIMICROBIAL ACTIVITY OF SYZYGIUM GARDNERI Thw. (MYRTACEAE).

2015 ◽  
Vol 2 (1) ◽  
pp. 53-55
Author(s):  
Asha devi V ◽  
Shalimol A ◽  
Arumugasamy K ◽  
Nantha kumar R ◽  
Abdul kaffoor H
Keyword(s):  
Escherichia Coli ◽  
Pseudomonas Aeruginosa ◽  
Antimicrobial Activity ◽  
Bacillus Subtilis ◽  
Antifungal Activity ◽  
Positive Control ◽  
Antibacterial And Antifungal Activity ◽  
Penicillium Notatum ◽  
Antibacterial And Antifungal ◽  
Alternaria Alternate

The present study was evaluated the antibacterial and antifungal activity of various extracts of S.gardneri against four different bactria and fungal strains like Bacillus subtilis, Escherichia coli, Pseudomonas aeruginosa, Salmonella para typhi b, Alternaria alternate, Aspergillus flavus, Penicillium notatum and Cladosporium carrionii. All the results were compared with respective positive control.

scholarly journals Chemical Composition, Antibacterial and Antifungal Activity of the Essential Oil from Cistus ladanifer L.

Plants ◽  
2021 ◽  
Vol 10 (10) ◽  
pp. 2068
Author(s):  
Jamila El Karkouri ◽  
Mohamed Bouhrim ◽  
Omkulthom Mohamed Al Kamaly ◽  
Hamza Mechchate ◽  
Amal Kchibale ◽  
...  
Keyword(s):  
Escherichia Coli ◽  
Staphylococcus Aureus ◽  
Chemical Composition ◽  
Antifungal Activity ◽  
Chemical Analysis ◽  
Essential Oil ◽  
Inhibition Zone ◽  
Salmonella Typhi ◽  
Cistus Ladanifer ◽  
Antibacterial And Antifungal

Cistus ladanifer L. is a plant widely used in folk medicine to treat various illnesses. This study aims to evaluate the effect of the plant flourishing time harvest on the chemical composition and the antimicrobial effect of its essential oil. Chemical analysis of the essential oil was carried out using gas chromatography-mass spectrometry (GC-MS). The antibacterial and antifungal proprieties were tested against four selected bacteria (Staphylococcus aureus, Salmonella Typhi, Escherichia coli, and Acinetobacter baumannii) and nine fungi (Yeasts (Candida tropicalis, Candida glabrata, Candida dubliniensis, Candida sp., Rhodotorula rubra, Cryptococcus neoformans) and molds (Penicillium sp. (P), Fusarium sp. (F), Aspergillus niger (A. niger)), respectively. The essential oil of C. ladanifer demonstrated a powerful antibacterial activity with an inhibition zone of 55 ± 0.22 mm for Staphylococcus aureus, 42 ± 0.11 mm for Escherichia coli, 35 ± 0.27 mm for Acinetobacter baumannii (Full resistant to antibiotics) and 30 ± 0.25 mm for Salmonella Typhi. It also inhibited all tested bacteria at 10 µL/mL. For the antifungal activity test, C. tropicalis and C. neoformans appeared to be the most sensitive strains to the essential oil with an inhibition zone of 13 mm, followed by R. rubra and Penicillium sp. (12 mm), then C. dubliniensis and C. glabrata (11 mm). The chemical analysis of the essential oil by GC-MS revealed that the major components of the essential oil were viridiflorol (17.64%), pinocarveol (11.02%), bornylacetate (9.38%), and ledol (8.85%). C. ladanifer exhibited a remarkable antimicrobial activity that could be more exploited to develop targeted natural remedies against specific diseases.

scholarly journals Chemical Composition, Anti-inflammatory, Analgesic, Antipyretic, Myorelaxant, Antibacterial and Antifungal activity of Rabdosia rugosus Wall. (Syn. Plectranthus rugosus Wall.)

1970 ◽  
pp. 08-15
Author(s):  
Prakash Singh, Ravendra Kumar ◽  
Om Prakash, Anil Kumar Pant ◽  
Mahesh Kumar ◽  
Valary A. Isidorov, Lech Szczepaniak
Keyword(s):  
Antimicrobial Activity ◽  
Chemical Composition ◽  
Essential Oil ◽  
The Other ◽  
Major Constituent ◽  
Antibacterial And Antifungal Activity ◽  
Germacrene D ◽  
Anti Inflammatory ◽  
Total Oil ◽  
Antibacterial And Antifungal

For the present investigation Rabdosia rugosus Wall. Syn. Plectranthus rugosus Wall.  was collected from Pancheshwar, Uttarakhand on the way to Badrinath. The GC and GC-MS analysis, revealed the presence of more than forty compounds out of which 35 compounds were identified amounting to 97.3% of the total oil. The essential oil of R. rugosus was rich in sesquiterpinoids (~90%) and was poor in monoterpenoids (8.1%). α-bisabolol (41.9%) was the major constituent of the oil and the other identified major compounds were germacrene-D (9.7%), β-caryophyllene (7.6%), dehydroabietane (5.2%), ar-curcumene (5.0), trans-ferruginol (3.3%) α-cadinol (3.2%), τ-muurolol (2.3%),   p-Cymene (3.2%) and  γ-terpinene (2.0%). The  essential  oil  of  Rabdosia rugosus showed insignificant  anti-inflammatory  and  analgesic  activity  but  shows  significant  antipyretic,   myorelaxant and  antimicrobial activity.

Chemical Composition and Antimicrobial Activity of European Propolis

2000 ◽  
Vol 55 (1-2) ◽  
pp. 70-75 ◽  
Author(s):  
Ahmed G. Hegazi ◽  
Faten K. Abd El Hady ◽  
Fayrouz A. M. Abd Allah
Keyword(s):  
Escherichia Coli ◽  
Staphylococcus Aureus ◽  
Antimicrobial Activity ◽  
Candida Albicans ◽  
Chemical Composition ◽  
Qualitative Composition ◽  
Coumaric Acid

Abstract Three propolis samples from Austria, Germany and France were investigated by GC/MS, where eleven compounds were being new for propolis. The samples showed some similarities in their qualitative composition. Phenylethyl-trans-caffeate, benzyl ferulate and galangin were predominant in German propolis. Benzyl caffeate was predominant in French sample. Pinocembrin was predominant in French and Austrian propolis and trans-p-coumaric acid was predominant in all samples. The antimicrobial activity against Staphylococcus aureus; Escherichia coli, and Candida albicans was evaluated. German propolis showed the highest antimicrobial activity against Staphylococcus aureus and Escherichia coli. While Austrian propolis has the highest activity against Candida albicans. French propolis was effective against all pathogens but less than German and Austrian propolis.

Screening and antimicrobial activity of actinomycetes isolated from the rhizosphere of Clitoria ternatea

2016 ◽  
Vol 1 (01) ◽  
Author(s):  
Vemavarapu Bhaskara Rao ◽  
Kandlagunta Guru Prasad ◽  
Krishna Naragani ◽  
Vijayalakshmi Muvva
Keyword(s):  
Escherichia Coli ◽  
Staphylococcus Aureus ◽  
Antimicrobial Activity ◽  
Candida Albicans ◽  
Calcium Carbonate ◽  
Rhizosphere Soil ◽  
Soil Samples ◽  
Antimicrobial Spectrum ◽  
Clitoria Ternatea ◽  
Primary Screening

The air dried rhizosphere soil samples pretreated with calcium carbonate was employed for the isolation of actinomycete strains. Serial dilution plate technique was used for the isolation of actinomycetes. A total of 20 actinomycete strains designated as BS1-BS20 were isolated from the rhizosphere of medicinal plant Clitoria ternatea. All the 20 strains were subjected to primary screening for antimicrobial activity. Among the 20 strains screened, 10 strains exhibited high antimicrobial spectrum against Staphylococcus aureus, Escherichia coli and Candida albicans.

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