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14篇 您的检索式:作者名="Gencheva"
    题名 作者 年代 出处 被引量
1Synthesis of new monomeric Pd(Ⅲ)and Dimeric(Pd(Ⅲ),Pd(Ⅱ))complexes with biuret formed in basic medium显示文摘Mincheva N Gencheva G Mitewa M 1997Synthesis and Reactivity in Inorganic and Metal-Organic Chemistry1997,27,8:1
2Properties of Nickel -Tungsten alloys electrodeposited from Sulfamate Electrolyte 显示文摘Atanassov N Gencheva K Bratoeve M 1997Plat Surf Finish1997,84,2:1
3Properties of nickel-tungsten alloys elelctrodeposited from sulfamate electrolyte显示文摘Atanassov N Gencheva K Bratoeve M 0,,02:1
4Properties of Nick- el-Tungsten Alloys Electrodeposited from Sulfamate Electro- lyte显示文摘Atanassov N Gencheva K Bratoeve M 1997Plat & Surf Finish1997,84,2:1
5Acuteshift in glutamate concentrations following experimentally inducedpanic with cholecystokinin tetrapeptide-a 3T-MRS study in healthysubjects显示文摘ZWANZGER P ZAVOROTNYY M GENCHEVA E 2013Neuropsychopharmacology2013,38,9:1
6Properties of NickelTungsten Alloys Electrodeposited from Sulfamate Electrolyte 显示文摘Atanassov N Gencheva K Bratoeve M 1997Plat Surf Finish1997,84,2:1
7Properties of nickel-tungsten alloys electrodeposited from sulfamate electrolyte显示文摘Atanassov N Gencheva K Bratoeve M 1997Plat Surf Finish1997,84,2:1
8Attrition and non-compliance in secondary stroke prevention trials显示文摘Gencheva E Sloan M Leurgans S 2004Neuroepidemiology2004,23,:1
9p59 (fyn)?mediated phosphorylation regulates the activity of the tissue -specific splicing factor rSLM -1显示文摘Stoss 0 N ovoyatleva T Gencheva M 2004Mol Cell Neurosci2004,27,1:1
10P59(9fyn)-mediated phosphorylation regulates the activity of the tissue - specif-ic splicing factor rSLM -1 显示文摘STOSS 0 NOYOYATLEVA T GENCHEVA M etal 2004Mol Cell Neurosci2004,27,1:1
11Attrition and non-compliance in secondary stroke prevention trials显示文摘 Sloan M Leurgans S 2004Neuroepidemiology2004,23,:1
12Properties of Ni-W alloys:Electrodeposited from sulfamate electrolyte 显示文摘Tanassov N A Gencheva K Ratoeve M B 1997Plating Surface Finish1997,84,2:1
13Microwave-Assisted Isolation and Acetylation of Inulin from Helianthus Tuberosus L Tubers显示文摘Jerusalem artichoke (Helianthus tuberosus L.) tubers are industrial crop considered as a promising source forinulin production. “Green” method was performed for accelerated inulin extraction from Helianthus tuberosus L.tubers by the application of microwave irradiation. Further pretreatment of the water extract with acetone andethanol yielded inulin (20%) with purity 89% and degree of polymerization 18. Jerusalem artichoke inulin wascharacterized by FTIR and NMR spectroscopy. For the first time eco-friendly synthesis of acetylated Jerusalemartichoke inulin was performed by the reaction with acetic anhydride, without toxic solvent, but only withsodium acetate as catalyst under microwave irradiation for 60 s. The degree of acetylation (DA=2.1) and thestructure of inulin esters were confirmed by 1H and 13C NMR. The suggested microwave acetylation shortenssignificantly the esterification reaction.Nadezhda Petkova Gergana Gencheva Dragomir Vassilev Milena Koleva Albert Krastanov Panteley Denev 2018Journal of Renewable Materials2018,6,7:0
14Physicochemical Characterization and Antimicrobial Properties of Inulin Acetate Obtained by Microwave-Assisted Synthesis显示文摘Microwave-assisted irradiation was performed for esterification of chicory inulin with high degree of polymerization with acetic anhydride without a solvent only with a catalyst.The resulting esters were characterized by melting point,hydrophilic-lipophilic balance,thin-layer chromatography,ultraviolet spectroscopy,Fourier transform infrared spectroscopy(FTIR)and nuclear magnetic resonance(NMR)spectroscopy.Inulin acetate demonstrated a high degree of acetylation(2.5-3.0)and presented a white,water-insoluble substance with bitter taste.The FTIR and NMR spectra confirmed esterification and demonstrated the incorporation of hydrophobic residue to the water soluble inulin backbone.Swelling capacity,water holding,oil-holding capacities,the foamability,foam stability and emulsifying properties were also evaluated.Inulin acetate showed promising foam stability 52%for 60 min and formed stable emulsions at concentration 0.2 g/L with 50 and 80%oil phases.Its water holding capacity was lower than the oil holding capacity.In addition to this,for the first time,the antimicrobial potential of inulin acetate was tested against seventeen microorganisms(Gram-positive and Gram-negative bacteria,yeasts and fungi).Inulin acetate(10 mg/ml)inhibited the growth of Bacillus cereus,Escherichia coli ATCC 8739,Salmonella abony,Candida albicans and Penicillium sp.However,inulin acetate demonstrated antimicrobial activity at concentration 1 mg/ml against Listeria monocytogenes 863,Escherichia coli 3398,Candida albicans 8673,Fusarium oxysporum and Aspergillus niger.The current study demonstrated the applications of“green”synthesized inulin acetate as a foaming agent,oil-in-water emulsion stabilizer and antimicrobial substance in pharmaceutical,agricultural and cosmetic preparations.Nadezhda Petkova Radka Arabadzhieva Dragomir Vassilev Gergana Gencheva Yulian Tumbarski Tsveteslava Ignatova-Ivanova Sevginar Ibryamova Mina Todorova Milena Koleva Panteley Denev 2020Journal of Renewable Materials2020,8,4:0
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