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| 1 | Anti-microbial principles of selected remedial plants from Southern India显示文摘Objective:To examine the anti-bacterial activity of leaf extracts of Morus alba L.(Moraceae)and Piper betel L.(Piperaceae),and seed extracts of Bombax ceiba L.(Borabacaceae).Methods:We have partially purified plant extracts by solvent extraction method,and evaluated the effect of individual fractions on bacterial growth using Escherichia coli(E.coli),Pseudomonas aeruginosa(P.aeruginosa) and Staphylococcus aureus(S.aureus) bacterial strains.Results:Compared with Morus and Bombax fractions,Piper fractions showed significant growth inhibition on all the three types of bacteria studied.The EtOAc-hexane fractions of Piper leaves exhibited significant antibacterial activity with minimum inhibitory concentrations(MIC) of 50 μg/mL culture against both gram-positive and gram-negative bacteria.The EtOAc-fractions Ⅰ,Ⅱ,and Ⅳ inhibited bacterial colony formation on soft agar in addition to growth inhibition.A combination treatment of piper fractions with ampicillin resulted in significant growth inhibition in E.coli and P.aeruginosa,and combination with anticancer drug geldanamycin(2 μg/mL) showed selective growth inhibition against P.aeruginosa and S.aureus.Three major compounds,i.e.,eugenol,3-hexene-ol and stigmasterol,were primarily identified from Piper betel leaf extractions.Among the individual compounds,eugenol treatment showed improved growth inhibition compared with stigmasterol and 3-hexene-ol.Conclusions:We are reporting potential anti-bacterial compounds from Piper betel against both gram-positive and gram-negative bacteria either alone or in combination with drug treatment. | Tirupathi Rao G Suresh Babu K J Ujwal Kumar Sujana P A Veerabhadr Raoa Sreedhar AS | 2011 | Asian Pacific Journal of Tropical Biomedicine2011，1，4： | 5 |
| 2 | Cymbopogon citratus -synthesized gold nanoparticles boost the predation efficiency of copepod Mesocyclops aspericornis against malaria and dengue mosquitoes显示文摘 | Kadarkarai Murugan Giovanni Benelli Chellasamy Panneerselvam Jayapal Subramaniam Tirupathi Jeyalalitha Devakumar Dinesh Marcello Nicoletti Jiang-Shiou Hwang Udaiyan Suresh Pari Madhiyazhagan | 2015 | Experimental Parasitology2015，，： | 2 |
| 3 | An improved dis- persive solid-phase extraction clean-up method for the gas chromatog- raphy-negative chemical ionisation tandem mass spectrometric deter- mination of multiclass pesticide residues in edible oils显示文摘 | Pragney Deme Tirupathi Azmeera Devi B L A | 2014 | Food Chem- istry2014，142，1： | 1 |
| 4 | Anti-obesity effect of kimchi fermented with Weissella koreensis OK1-6as starter in highfat dietinduced obese C57BL/6J mice显示文摘 | Park J A Tirupathi P B Yu J J | 2012 | Journal of Applied Microbiology2012，113，6： | 1 |
| 5 | Efficient One-pot Preparation of Nitriles from Aldehydes Using N-Methyl-Pyrrolidone显示文摘 | Sampath Kumar H M Subba Reddy B V Tirupathi Reddy P | 1999 | Synthesis1999，，58： | 1 |
| 6 | Absorption and emission properties of Nd3 + in lithium cesium mixed alkali borate glasses显示文摘 | Ratnakaram Y C Vijaya Kumar A Tirupathi Naidu D | | 0，，01： | 1 |
| 7 | Efficient one-pot preparation of nitriles from aldehydes using N -methyl -pyrrolidone显示文摘 | Sampath K H M Subba R B V Tirupathi R P | 1999 | Synthesis1999，4，： | 1 |
| 8 | An improved dispersive solid - phase extraction clean - upmethod for the gas chromatography - negative chemical ionisationtandem mass spectrometric determination of multiclass pesticideresidues in edible oils 显示文摘 | Pragney Deme Tirupathi Azmeera B L A Prabhavathi Devi | 2014 | Food Chemistry2014，142，： | 1 |
| 9 | Efficient one-pot preparation of nitriles from aldehydes using N-methyl-pyrrolldone显示文摘 | Sampath Kumar H M Subba Reddy B V Tirupathi Reddy P | 1999 | Synthesis1999，，： | 1 |
| 10 | Ethanolic extract of seabuckthorn ( Hippophae rhamnoides L ) prevents high-fat diet–induced obesity in mice through down-regulation of adipogenic and lipogenic gene expression显示文摘 | P.B. Tirupathi Pichiah Hye-Jung Moon Jeong-Eun Park Yeon-Jeong Moon Youn-Soo Cha | 2012 | Nutrition Research2012，，11： | 1 |
| 11 | Doxorubicin treatment inhibits PPARγand may induce lipotoxicity by mimicking a type 2 diabetes-like condition in rodent models显示文摘 | Arunachalam S Tirupathi Pichiah PB Achiraman S | 2013 | FEBS Lett2013，587，2： | 1 |
| 12 | Efficient one-pot preparation of nitriles from aldehydes using N-methyl-pyrrolidone 显示文摘 | Sampath Kumar H M Subba Reddy B V Tirupathi Reddy P | 1999 | Synthesis1999，，4： | 1 |
| 13 | Stabilization of dielectric anomaly near the magnetic phase transition in Ca2+ doped BiFeO3 multifunctional ceramics 显示文摘 | Patri Tirupathi Amreesh Chandra | 2013 | J Alloys Compd2013，564，： | 1 |
| 14 | Efficient one-pot preparation of nitriles from aldehydes using N-methyl-pyrrolidone显示文摘 | Sampath Kumar H M Subba Reddy B V Tirupathi Reddy P | 1999 | Synthesis1999，，4： | 1 |
| 15 | LC-MS/MS Determination of Organophosphorus Pesticide Residues in Coconut Water 显示文摘 | Pragney D Tirupathi A Sanjit K | 2013 | Food Analytical Methods2013，6，： | 1 |
| 16 | Modeling 3D Magma Dynamics Using a Discontinuous Galerkin Method显示文摘Discontinuous Galerkin(DG)and matrix-free finite element methods with a novel projective pressure estimation are combined to enable the numerical modeling of magma dynamics in 2D and 3D using the library deal.II.The physical model is an advection-reaction type system consisting of two hyperbolic equations to evolve porosity and soluble mineral abundance at local chemical equilibrium and one elliptic equation to recover global pressure.A combination of a discontinuous Galerkin method for the advection equations and a finite element method for the elliptic equation provide a robust and efficient solution to the channel regime problems of the physical system in 3D.A projective and adaptively applied pressure estimation is employed to significantly reduce the computational wall time without impacting the overall physical reliability in the modeling of important features of melt segregation,such as melt channel bifurcation in 2D and 3D time dependent simulations. | Seshu Tirupathi Jan S.Hesthaven Yan Liang | 2015 | Communications in Computational Physics2015，18，6： | 0 |
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