维普中文期刊产品整合服务
475篇 您的检索式:作者名="Kumar B J"
    题名 作者 年代 出处 被引量
1Antibacterial activity and characterization of secondary metabolites isolated from mangrove plant Avicennia officinalis显示文摘Objective:To explore antibacterial activity and characterization of secondary metabolites isolated from mangrove plant Avicennia officinalis(A.officinalis).Methods:In the present study the leaf extracts of A.officinalis were examined for its antibacterial potential using five different solvents against some reference strains of human pathogenic bacteria for the crude extract.Maximum activity was observed for ethyl acetate and hence different concentrations like 15μL,25μL,and 50μL of ethyl extracts was checked for its antibacterial activity.Partial purification of crude extract was carried by column chromatography and fractions were analyzed using gas chromatography-mass spectrometry(GC-MS) to identify compounds.Results:The crude ethyl acetate extracts of A.officinalis showed remarkable antibacterial activity with zones of inhibition of 13 mm against Eschericia coli(E.coli) and 11 mm against Staphylococcus aureus (S.aureus).Fraction 13(ethyl acetate:methanol= 8:2) as the most potent one against with the minimal inhibitory concentration of 30 mm against E.coli and 25 mm against S.aureus.The GCMS resultsof active column fraction(F13) revealed that the active principals were a mixture of hydroxy- 4 methoxybenzoic acid,diethyl phthalate,oleic acid.Conclusions:The leaf extracts with proven antibacterial effects can clearly be directed towards cancer treatment as to inhibiting cancer cell growth.The limited number of test organisms owes to a constraint of resource.So,the effect of strong bursts of leaf extracts on human pathogenic bacteria should further be tested on a wide range of test organisms.Valentin Bhimba B J Meenupriya Elsa Lycias Joel D Edaya Naveena Suman kumar M Thangaraj 2010Asian Pacific Journal of Tropical Medicine2010,3,7:13
2Cooperative Air and Ground Surveillance显示文摘Groeholsky B Keller J Kumar V 2006IEEE Robotics and Automation Magazine2006,,13:1
3Solvent extraction of Hf(IV) from acidic chloride solutions using Cyanex 302显示文摘REDDY B R KUMAR J R RAJA K P REDDY A V 2004Minerals Engineering2004,17,:1
4Central poststroke pain : a review of pathophysiology and treanrmeat 显示文摘Kumar B Kalita J Kumar G 2009Anesth Analg2009,108,5:1
5Ontogenetic development of digestive enzymes in yellowtail kingfish Seriola lalandi larvae 显示文摘Chen B N Qin J G Kumar M S 2006Aquaculture2006,260,:1
6Poly (ethylene oxide)-based composite electrolytes 显示文摘KUMAR B RODRIGUES S J 2001J Electrochem Soc2001,148,:1
7Emergence of a new antibiotic resistance mechanism in India, Pakistan, and the UK: a molecular, biological, and epidemiological study 显示文摘Kumarasamy KK Toleman MA Walsh TR Bagaria J Butt F Balakrishnan R Chaudhary U Doumith M Giske CG Irfan S Krishnan P Kumar AV Maharjan S Mushtaq S Noorie T Paterson DL Pearson A Perry C Pike R Rao B Ray U Sarma JB Sharma M Sheridan E Thirunarayan MA Turton J Upadhyay S Warner M Welfare W Livermore DM Woodford N 2010Lancet Infect Dis2010,10,9:1
8Central poststroke pain:a review of pathophysiology and treatment显示文摘Kumar B Kalia J Kumar G 2009Anesth Analg2009,108,5:1
9IL-6 promotes head and neck tumor metastasis by inducing epithelial-mesenchymal transition via the JAK-STAT3-SNAIL signaling pathway显示文摘Yadav A Kumar B Datta J 2011Mol Cancer Res2011,9,12:1
10The effects ofsupplier fairness on vulnerable resellers 显示文摘KUMAR N SCHEER L K STEENKAMP J B 1995Journal of Market-ing Research1995,32,1:1
11Indoleamine 2,3-dioxygenase is the anticancer target for a novel series of potent naphtho- quinone-based inhibitors显示文摘KUMAR S MALACHOWSKI W P DUHADA- WAY J B 2008J Med Chem2008,51,6:1
12Polymer ceramic composite protonic conductors显示文摘KUMAR B FELLNER J P 2003J Power Sources2003,123,:1
13Antialgal activity of a hepatoxin-producing cyanbacterium, Microcystis aeruginosa 显示文摘Singh D P Tyagi M B Kumar A Thakur J K Kumar A 2001World J Microbiol Biotechnol2001,17,:1
14Development of membranes and a study of their interfaces for rechargeable lithium-air battery 显示文摘KUMAR J KUMAR B 2009Joumal of Power Sources2009,194,:1
15The crystalline to amorphcus transition in PEO-based composite electrolytes: role of lithium salts显示文摘Kumar B Rodriguas S J Kola S 2002Electrochimica Acta2002,47,25:1
16Ionic conductivity of colloidal electrolytes显示文摘KUMAR B RODRIGUES S J 2004Solid State Ionics2004,167,:1
17Analysis of M/G/1 queueing model with state dependent arrival and vacation显示文摘Singh C J Jain M Kumar B 2012J Ind Eng Int2012,8,:1
18Growth of Zn0nanostructures on Au-coated Si:influence of growth temperature on growth mechanism and morphology显示文摘Kumar R T R McGlynn E Biswas M Saunders R Trolliard G Soulestin B Duclere J R Mosnier J P.Henry M O 0,,08:1
19Performance and Complexity of 32 K-Bit Binary LDPC Codes for Magnetic Recording Channels 显示文摘Seungiune J Kumar B 2010IEEE Transactions on Magnetics (S0018-9464)2010,46,6:1
20MARKOR: A measure of market orientation显示文摘Kohli A K Jaworski B J Kumar A 1993Journal of Marke- ting Research1993,30,4:1
返回顶部 每页显示:
共24页 首页 上一页 第1页 下一页 末页 /24 跳转

网站首页 | 关于我们 | 联系我们 | 产品服务 | 客服中心 | 广告服务 | 版权声明 | 网站联盟 | 友情链接 | 售卡网点

版权所有© 渝B2-20050021-1 渝公网安备 50019002500403号 违法和不良信息举报中心

互联网出版许可证 新出网证(渝)字10号 全国400电话 - 免长途话费