tailieunhanh - Phenolic compounds and antioxidant and antimicrobial properties of Helichrysum species collected from eastern Anatolia, Turkey

The methanolic extracts had antibacterial activity against Aeromonas hydrophila, Bacillus brevis, B. cereus, Klebsiella pneumoniae, Pseudomonas aeruginosa, and Staphylococcus aureus ATCC 29213. However, no activity was found against Escherichia coli, Morganella morganii, Mycobacterium smegmatis, Proteus mirabilis, Yersinia enterocolitica, or Saccharomyces cerevisiae. | Turk J Biol 34 (2010) 463-473 © TÜBİTAK doi: Phenolic compounds and antioxidant and antimicrobial properties of Helichrysum species collected from eastern Anatolia, Turkey Sevil ALBAYRAK1, Ahmet AKSOY1, Osman SAĞDIÇ2, Ümit BUDAK3 1 Department of Biology, Science Faculty, Erciyes University, 38039 Kayseri - TURKEY 2Department of Food Engineering, Engineering Faculty, Erciyes University, 38039 Kayseri - TURKEY 3Department of Biology, Arts and Science Faculty, Bozok University, 66090 Yozgat - TURKEY Received: Abstract: The antioxidant activity of the methanolic extracts of 4 plants from genus Helichrysum Mill. (Asteraceae) [H. arenarium (L.) Moench subsp. erzincanicum Davis & Kupicha, H. arenarium (L.) Moench subsp. rubicundum (.) Davis & Kupicha, H. armenium DC. subsp. araxinum (Kirp.) Takht., and H. plicatum DC. subsp. pseudoplicatum (Nab.) Davis & Kupicha] was investigated with 2 complementary test systems, DPPH (2,2-diphenyl-1-picrylhydrazyl) radical scavenging and phosphomolybdenum assay. H. plicatum subsp. pseudoplicatum showed the highest level of total antioxidant activity ( ± mg ascorbic acid equivalent/g extract) in the phosphomolybdenum assay. H. arenarium subsp. erzincanicum showed the highest level of free radical scavenging activity, with an IC50 value of μg/mL. The total phenolic contents of the extracts ranged from to mg gallic acid/g dry extract. Chlorogenic acid, apigenin-7-glucoside, and apigenin were found by HPLC analysis to be the main components in the extracts. Antimicrobial activity was investigated with the agar diffusion method. The methanolic extracts had antibacterial activity against Aeromonas hydrophila, Bacillus brevis, B. cereus, Klebsiella pneumoniae, Pseudomonas aeruginosa, and Staphylococcus aureus ATCC 29213. However, no activity was found against Escherichia coli, Morganella morganii, Mycobacterium smegmatis, Proteus mirabilis, Yersinia enterocolitica, or .

• Sinh học
• Antimicrobial activity
• Antioxidant activity
• Phenolic compounds
• Pseudomonas aeruginosa
• Staphylococcus aureus ATCC 29213
• Mycobacterium smegmatis
• Antimicrobial activity of ZITRITIDE
• Organic antimicrobial fogging solution
• Special reference
• Infection prevention
• Hospital environments
• Other clean room facilities
• Journal of Chemistry
• The Chemistry and Antimicrobial Activity of Psychotria reevesii Wall
• The Chemistry and Antimicrobial Activity
• Psychotria reevesii Wall
• The polar fractions against Staphylococcus aureus
• Pleurotus florida
• Silver nanoparticles
• Their antimicrobial activity
• Silver nanoparticles from pleurotus florida
• Oral pathogens
• Inhibition zone
• In vitro antimicrobial activity
• Commercial toothpastes
• Agar well diffusion method
• Salvia aegyptiaca
• Salvia aegyptiaca L
• Antimicrobial activity of various extracts
• Evaluation of antioxidant
• Syzygium cumin leaves
• Antimicrobial activity of Syzygium cumin leaves
• Ethyl acetate extracts
• Marine sediments
• 18S rRNA gene sequences
• Screening antimicrobial activity
• Identification of fungi
• Alternaria brassicae
• Aspergillus niger
• Pencillium notatum
• Underutilized fruits
• Antimicrobial activity of underutilized fruits
• Evaluation of antimicrobial activity
• Silver nanoparticles against pathogens
• Rhizome rot of ginger
• Chemical management in the future
• Thyme to antimicrobial activity
• Oregano essential oils
• Enzymatic antioxidative system
• Origanum vulgare L
• BMC Chemistry
• Antifungal activity
• Structure activity relationship
• Inhibition mechanism prediction
• Pentafluorophenylammonium triflate
• Coumarin 3 carboxylic acid
• Chromeno[2 3 d]pyrimidinones
• 4H pyran 5 ethylcarboxylate
• Antimicrobial activity of Vitamin B complex
• Klebsiella pneumoniae
• Klebsiella species isolated
• Water soluble vitamin B complex
• Biotechnology and food sciences
• Virulence factors
• Antibiotic resistance
• Antimicrobial activity of enterococcus spp isolated
• Acacia arabica
• Pathogenic organisms
• Control drug
• Antimicrobial activity of leaves
• Natural compounds from sponge
• Antimicrobial activity of natural compounds
• Derived fungus aspergillus flocculosus
• Marine derived fungi
• Protein hydrolysate prepared
• Tilapia fish waste
• Enzymatic treatment
• Antimicrobial properties in vitro
• Antimicrobial properties
• Phyo chemical analysis
• Plant resources having antimicrobial properties obtained
• Phytochemical analysis of plant resources
• Sonchus erzincanicus
• Minimal inhibition concentration
• Butylated hydroxytoluene
• Free radical
• Glutathione S transferase
• Hydroxyl radical
• Lipid peroxidation
• Desmostachya bipinnata stapf
• Root extracts of desmostachya bipinnata stapf
• Phytochemical analysis
• Antimicrobial compound
• Burkholderia paludis
• Enterococcus faecalis
• The role of reactive oxygen species
• BMC Veterinary Research
• Antimicrobial peptide PMAP 37
• Antibacterial activity
• Therapeutic efficacy
• Antibacterial spectrum
• Anti biofilm activity
• Rhizophora stylosa
• Endophytic bacteria
• Mangrove plant Rhizophora stylosa
• Essential oils
• Oral diseases
• Anticariogenic activity
• Medicinally important essential oils
• Antimicrobial activity of medicinally
• In vitro anticariogenic activities