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| 1 | 用传统和超声提取的松果菊(紫锥菊属)的抗氧化和抗菌活性(英文)显示文摘Antioxidant and antimicrobial activities of Echinacea purpurea L. (Asteraceae) extracts obtained by classical and ultrasound solvent extraction were compared. The dry aerial part of plant was extracted by 70% etha-nol at a solid-to-liquid ratio of 1︰10 (m/v) and 25°C. The extract obtained by classical solvent extraction contained 29% larger amounts of phenolic compounds and 20% higher content of flavonoids. 2,2-diphenyl-1-picril hydrazyl radical (DPPH) scavenging reached 93.6% and the values of EC50 were (34.16±0.65) μg·ml-1 and (65.48±1.12) μg·ml-1 for the extracts obtained by the classical and ultrasound extractions, respectively. The extracts, independent of the extraction technique applied, showed a considerable growth inhibition on Candida albicans and Saccharo-myces cerevisiae, while no growth inhibition zones were observed for Aspergillus niger. The diameters of inhibition zone observed for all the microorganisms were larger for extracts obtained by classical extraction than those by ul-trasound extraction. | Ivana Stanisavljevi Sаa Stojievi Dragan Velikovi Vlada Veljkovi Miodrag Lazi | 2009 | Chinese Journal of Chemical Engineering2009，17，3： | 2 |
| 2 | 不同萃取技术获得的Artemisia sp的甲醇提取物其抗氧化和抗菌活性的比较(英文)显示文摘The polyphenol content,antioxidant and antimicrobial activities of the extracts obtained by classical, ultrasonic and Soxhlet extractions from dry aerial parts of two Artemisia species(Artemisia vulgaris and Artemisia campestris)were compared.Ultrasound positively affected the yield of extractive substance and the kinetics of extraction,but the extract obtained by the classical extraction showed the highest antioxidant activities and contained higher total contents of phenolic compounds and flavonoids than the extracts obtained by two other extraction techniques.Both flavonoid aglycones(apigenin,quercetin,quercetin 3,3′-dimethyl ether)and flavonoid glycosides(rutin,hyperoside and kaempferol 3-rhamnoside)were identified by thin layer chromatograph(TLC)analysis in the extracts from both species.A.campestris extracts were richer in quercetin than A.vulgaris and its antimicrobial activity was also better than A.vulgaris.Extracts obtained from both species were found to be more effective on the tested yeasts than bacteria.The kinetics of the total extractive substances,such as phenolic,flavonoids and quercetin extraction,was successfully described by the model of unsteady-state diffusion. | Ivana Karabegovi Milena Nikolova Dragan Velikovi Sаa Stojievi Vlada Veljkovi Miodrag Lazi | 2011 | Chinese Journal of Chemical Engineering2011，19，3： | 1 |
| 3 | incremental transmission loss allocation under pool dispatch 显示文摘 | Galiana F D Conejo A J Kockar Ivana | 2002 | IEEE Trans on Power Systems2002，17，1： | 1 |
| 4 | Modulation of poly(ADP-ribosylation) in apoptotic cells 显示文摘 | Ivana Scovassi A Diederich M | 2004 | BiochemPharmacol2004，68，6： | 1 |
| 5 | Influence of the emission trading scheme on generation scheduling显示文摘 | Ivana K Conejo A J James R M | 2009 | Inter- national Journal of Electrical Power and Energy Systems2009，31，9： | 1 |
| 6 | N-acetylcysteine and contrast- induced nephropathy in primary angioplasty显示文摘 | Giancarlo M Emilio A Ivana M | 2006 | N Engl J Med2006，354，29： | 1 |
| 7 | Endothelin in human inflammatory bowel disease: comparison to rat trinitrobenzenesulphonic acid-induced colitis显示文摘 | Sara A McCartney Anne B Ballinger Ivana Vojnovic Michael J.G Farthing Timothy D Warner | 2002 | Life Sciences2002，，： | 1 |
| 8 | Thermal development of microstructure and precipitation effects in Mg-10%wtGd alloy显示文摘 | JAKUB C IVAN P BOHUMIL A IVANA S RADOMIR K ZDENEK M J VIKTOR C | 2006 | Phys Star A2006，203，： | 1 |
| 9 | Crystalline nanostructures of heavy metal iodides显示文摘 | Laura Fornaro Ivana Aguiar María Pérez Barthaburu Alvaro Olivera Isabel Galain Maia Mombrú | 2014 | Journal of Crystal Growth2014，，： | 1 |
| 10 | Conformational transition in polyaniline films-Spectroscopic and conductivity studies of ageing显示文摘 | Ivana (S)eděnkov(a) Jan Proke(s) Miroslava Trchov(a) | 2008 | Polymer Degradation and Stability2008，93，： | 1 |
| 11 | Modulation of poly (ADP-ribosylation) in apoptotic cells显示文摘 | Ivana Scovassi A Diederich M | 2004 | Biochem Pharmacol2004，1568，6： | 1 |
| 12 | Purification and properties of extracellular lipase from Streptomyces rimosus, Enzyme显示文摘 | Marija A Ivana L Tamara K | 1999 | Microbiol Technol1999，25，： | 1 |
| 13 | Xanthones and C-glucosides from the aerial parts of four species of Gentianella from Serbia and Montenegro 显示文摘 | Teodora J Dijana K Ivana A | 2005 | Biochem Syst Ecol2005，33，7： | 1 |
| 14 | Relations between mercury fractions and microbial community components in seawater under the presence and absence of probable phosphorus limitation conditions显示文摘Microbial transformations of toxic monomethylmercury(MMHg) and dissolved gaseous mercury(DGM) at the lower levels of the marine food web are not well understood, especially in oligotrophic and phosphorus-limited seas. To examine the effects of probable phosphorus limitation(~PP-limitation) on relations between mercury(Hg) fractions and microorganisms, we determined the total mercury(THg), total methylated mercury(MeHg), DGM, and microbiological and chemical parameters in the Central Adriatic Sea. Using statistical analysis, we assessed the potential microbial effects on Hg transformations and bioaccumulation. Only in the absence of ~PP-limitation conditions(^(NO–P)P-limitation) is MeHg significantly related to most chemical and microbial parameters, indicating metabolism-dependent Hg transformations.The heterotrophic activity of low nucleic acid bacteria(abundant in oligotrophic regions)seems responsible for most of Hg methylation under ^(NO–P)P-limitation. Under these conditions,DGM is strongly related to microbial fractions and chlorophyll a, indicating biological DGM production, which is probably not metabolically induced, as most of these relations are also observed underPP-limitation. MMHg biomagnification was observed through an increased bioaccumulation factor from microseston to mesozooplankton. Our results indicate that Hgtransformations and uptake might be enhanced under ^(NO–P)P-limitation conditions, emphasizing their impact on the transfer of Hg to higher trophic levels. | Igor ?ivkovi? Vesna Fajon Jo?e Kotnik Yaroslav Shlyapnikov Kristina Obu Vazner Ermira Begu Stefanija ?estanovi? Danijela ?anti? Ana Vrdoljak Slaven Jozi? Mladen ?oli? Jelena Lu?i? Jere Ve?a Grozdan Ku?pili? Marin Ordulj Frano Mati? Branka Grbec Natalia Bojani? ?ivana Nin?evi? Gladan Milena Horvat | 2019 | Journal of Environmental Sciences2019，31，1： | 1 |
| 15 | Influence of the degree of condensation of urea-formaldehyde adhesive on the tangential penetration into beech and fir and on the shear strength of the adlesive joints显示文摘 | Ivana Gavrilovi 6-Grmu(s)a Manfred Dunky Jovan Miljkovi 6 | 2012 | Eur J Wood Prod2012，，70： | 1 |
| 16 | Epigenetic control of gene expression in the lung 显示文摘 | Ivana V Yang David A Schwartz | 2011 | Am J Respir Crit Care Med2011，183，10： | 1 |
| 17 | Pulmonary complications in diabetes mellitus:the role of glycemic control显示文摘 | Diego A Silvia V Ivana Z | 2004 | Curr Drug Targets Inflamm Allergy2004，3，4： | 1 |
| 18 | Simultaneous determination of cadmium,lead copper and mercury ions using organofunctionalized SBA-15 nanostructured silica modified graphite-polyurethane composite electrode显示文摘 | IVANA C CAVALHEIRO E TG BRETT C M A | | 0，，01： | 1 |
| 19 | Modulation of poly(ADPribosylation) in apoptotic cells显示文摘 | Diederich M | 2004 | Biochem Pharmacol2004，68，： | 1 |
| 20 | Characterization of changes of low and high defect kaolinite after biolcaching显示文摘 | MOCKOVCIAKOVA A IVETA S JIR1 S IVANA K | 2008 | Applied Clay Science2008，39，34： | 1 |
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