Sathyanarayana N Gummadi

Professor
Ph.D, Indian Institute of Technology Madras
M.Tech, Anna University
Office: BT 205
Tel: +91-44-2257-4114
Email: gummadi@iitm·ac·in
Lab: BT 208 (Website)

Research Interests

  • Understanding the molecular and physiological basis of survival of microbes under extreme conditions and exploiting their industrial importance
  • Understanding the molecular and biochemical basis of phospholipid translocation in cellular membranes

International Journals:

  • M.K. Shanmugam and S.N. Gummadi (2020) Degradation of synthetic coffee wastewater using induced cells of Pseudomonas sp. NCIM 5235, International Journal of Environmental Science and Technology (in press). Impact factor: 2.54
  • S. Malla and S.N. Gummadi (2020) Simultaneous optimization of activity and stability of xylose reductase from D. nepalensis NCYC 3413 using statistical experimental design, Protein and Peptide Letters (in press). Impact factor: 1.168
  • M.K. Shanmugam, S. Sriman and S.N. Gummadi (2020) Online measurement of dissolved oxygen in shake flast to elucidate its role on caffeine degradation, Indian Chemical Engineer,
  • S.K. Palanirajan, G. Punitha and S.N. Gummadi (2020) Polystyrene adsorbents: Rapid and efficient surrogate to dialysis in membrane protein purification. Scientific reports,10:16334. https://doi.org/10.1038/s41598-020-73522-1 IF: 4.12
  • S. Chakraborty, G. Suresh Kumar and S. N. Gummadi (2020) Influence of crucial reservoir properties and microbial kinetic parameters on enhanced oil recovery by microbial flooding under nonisothermalconditions: Mathematical modelling and numerical simulation. Journal of Petroleum Science and Engineering, 195, 107831. https://doi.org/10.1016/j.petrol.2020.107831. IF: 3.706
  • K. Jagadeeshwar, V. Gayathri, Abhijit P. Deshpande and S.N. Gummadi (2020) Molecular association and gelling characteristics of curdlan. Current Science, 118: 1436-1442.
  • S.Boddapati, Randhir Rai and S. N. Gummadi (2020) Structural analysis and antioxidative properties of mutan (water-insoluble glucan) and caroboxymethyl mutan from Streptococcus mutans. Process Biochemistry, 97: 130-139. Doi.org/10.1016/j.procbio.2020.07.006. IF: 2.95
  • S. Chakraborty, G. Suresh Kumar and S. N. Gummadi (2020) Numerical modeling on the influence of effective porosity, microbial kinetics and operational parameters on enhanced oil recovery by microbial flooding within sandstone formation. Society for Petroleum Engineering Journal, doi:10.2118/200639-MS. IF: 3.1
  • A. Senthilkumar, Swati S. Dash, Kartik Mitra, M. Doble and S.N. Gummadi (2020) Potential of Terminalia arjuna as a promising phytoremedy against COVID19: DDPH Scavenging, Catalase Inhibition and Docking studies. ChemRixv. doi.org/10.26434/chemrixv.12600587.v1
  • H. Muthukumar, M.K. Shanmugam and S.N. Gummadi (2020) Caffeine degradation in synthetic wastewater using silver ferrite nanoparticles fabricated via green route using Amaranthus blitum leaf extract, Journal of Water Processing, 36, 101382. doi:10.1016/j.jwpe.2020.101382. IF:3.47
  • H. Muthukumar,S.K. Palanirajan, M.K. Shanmugam and S.N. Gummadi (2020) Plant extract mediated synthesis enhanced the functional properties of silver ferrite nanoparticles over chemical synthesis, Biotechnology Reports, 26, e00469. doi: 10.1016/j.btre.2020e00469
  • S. Malla and S.N.Gummadi (2020) Counteraction of osmolytes on pH induced unfolding of xylose reductase from Debaryomycesnepalensis, European Biophysics Journal, 49: 267-277. doi: 10.1007/s00249-020-01432-1. Impact factor: 2.527
  • R. Radha and S.N. Gummadi (2020) Optimization of physical parameters pH and temperature for maximized activity and stability of Vibrio cholera L-asparaginase by statistical experimental design, Indian Chemical Engineer,  62: 1-10. doi:10.1080/00194506.2020.1758224.
  • S.K.Palanirajan and S.N.Gummadi (2020) Heavy metals mediated phospholipids scrambling by human phospholipid scramblase 3: a probable role in mitochondrial apoptosis, Chemical Research in Toxicology, 33: 553-564.doi: 10.1021/acs.chemrestox.9b00406. Impact factor: 3.274
  • M. Koyiloth and S.N. Gummadi (2020) Molecular cloning and biochemical characterization of the phospholipid scramblase SCRM-1 from Caenorhabditis elegans, European Biophysics Journal, 49: 163-173. https://doi.org/10.1007/s00249-020-01423-2. Impact factor:2.527
  • V. Nagaroor and S.N. Gummadi (2020) Biochemical characterization of an esterase from Clostridium acetobutylicum with novel GYSMG pentapeptide motif at the catalytic domain, Journal of Industrial Microbiology and Biotechnology, 47: 169-181.doi: 10.1007/s10295-019-02253-8.Impact factor:2.993
  • H. Muthukumar, S. Malla, M.  Matheswaran and S.N. Gummadi (2020) Immobilization of xylose reductase enzyme on cysteine-functionalized Murrayakoenigii mediated magnetite nanoparticles, Materials Letters, 261, 127125.https://doi.org/10.1016/j.matlet.2019.127125Impact factor:3.019
  • R.Rai, S.N. Gummadi and D. Chand (2019) Cuprous Oxide or copper coated jute stick pieces at air-water interface for prevention of aerial contamination in potable water, ACS OMEGA, 4, 27, 22514-22520doi: 10.1021/acsomega.9b03184.Impact factor:2.58
  • J. Satya, Eswari, P.Sankar, S.N. Gummadi, T. Panda and Ch. Venkateswarlu (2019) Metabolic pathway analysis and dynamic macroscopic model development for lovastatin production by Monascuspurpureus using metabolic foot printing concept, Biochemical Engineering Journal, 154: 107437.https://doi.org/10.1016/j.bej.2019.107437. Impact factor:3.371
  • Y. Deepthi, S.M. Shiva Nagendra and S.N. Gummadi (2019) Characterization and health risk assessment of indoor dust in biomass and LPG based households of rural Telangana, India, Journal of Air and Waste Management Association, 69,1438-145.https://doi.org/10.1080/10962247.2019.166887. Impact factor: 1.858
  • R. Radha and S.N Gummadi (2019) pH-dependent thermal stability of Vibrio cholerae L-asparaginase, Protein and Peptide Letters,26(10):743-750.doi: 10.2174/0929866526666190617092944. Impact factor: 1.168
  • BSundaramoorthy and S.N. Gummadi (2019) Screening of new yeast Pichia manchurica for arabitol production, Journal of Basic Microbiology, 59:256-266.https://doi.org/10.1002/jobm.201800366. Impact factor:1.580
  • H.A Antony, N.S.Topno, S.N. Gummadi, D. Siva Sankar, R. Krishna and S.C.Parija (2019) In silico modeling of Plasmodium falciparum chloroquine resistance transporter protein and biochemical studies suggest its key contribution to chloroquine resistance, Acta Tropica, 189: 84-93.https://doi.org/10.1016/j.actatropica.2018.10.001. Impact factor:2.50.
  • B. Paidimuddala, S.BMohapatra, S.N. Gummadi and N.Manoj (2018) Crystal structure of yeast xylose reductase in complex with a novel NADP-DTT adduct provides insights into substrate recognition and catalysis. Federation of European Biochemical Societies Journal, 285(23):4445-4464.doi:10.1111/febs.14667. Impact factor: 4.530.
  • Y. Deepthi, S.MShiva Nagendra and S.N. Gummadi (2018) Characteristics of indoor air pollution and estimation of respiratory dosage under varied fuel-type and kitchen-type in the rural areas of Telangana state in India, Science of the Total Environment,650(1):616-625.https://doi.org/10.1016/j.scitotenv.2018.08.381.Impact factor: 4.61
  • S.Retnadhas and S.N. Gummadi (2018) Identification and characterization of oxidoreductase component (NdmD) of methylxanthine oxygenase system in Pseudomonas sp. NCIM 5235, AppliedMicrobiologyandBiotechnology, 102:7913–7926, doi:10.1007/s00253-018-9224-x Impact factor: 3.420
  • S.KPalanirajan and S.N. Gummadi (2018) Rapid method for an enhanced recovery of biologically active human phospholipid scramblase 1 from inclusion bodies, Analytical Biochemistry, 556: 104-111. doi:10.1016/j.ab.2018.06.028. Impact Factor:2.275.
  • S.M. Pappu and S.N. Gummadi. (2018) Effect of cosubstrate on xylitol production by Debaryomycesnepalensis NCYC 3413: a cybernetic modelling approach, Process Biochemistry, 69:12-21. doi:org/10.1016/j.procbio.2018.03.023, Impact Factor: 2.616.
  • S. Malla and S.N. Gummadi (2018) Thermal stability of xylose reductase from Debaryomycesnepalensis NCYC 3413: deactivation kinetics and structural studies, Process Biochemistry 67:71-79.https://doi.org/10.1016/j.procbio.2018.01.010. Impact factor: 2.616
  • R. Radha, N. Arumugam and S.N. Gummadi (2018) Glutaminase free L-asparaginase from Vibrio cholerae: Heterologous expression, purification and biochemical characterization. International Journal of Biological Macromolecules, 111: 129-138.
  • S.K.Palanirajan, U.Sivagnanam, S. Muruganand S.N. Gummadi (2017) In vitro reconstitution and biochemical characterization of human phospholipid scramblase 3: phospholipid specificity and metal ion binding studies. Biological Chemistry, 399(4):361-374.doi: 10.1515/hsz-2017-0309. Impact Factor:3.022.
  • M.K Singh, S. Shivakumaraswamyand S.N. Gummadi and Manoj N  (2017) Role of an N-terminal extension in stability and catalytic activity of a hyperthermostable α/β hydrolase fold esterase, Protein Engineering, Design and Selection, 30(8): 559–570.doi:10.1093/protein/gzx049. Impact factor: 1.881.

  • S. Ayothiraman, S.N. Gummadi and T. Panda (2017) Comparison of the elution characteristics of individual forms of lovastatin in both isocratic and gradient modes and HPLC-PDA method development for pure and fermentation derived lovastatin, Preparative Biochemistry and Biotechnology 47(9):901-908.doi: 10.1080/10826068.2017.1365239. Impact factor: 1.241
  • B.Paidimuddala, G.K. Aradhyam and S.N. Gummadi (2017) A halotolerant aldose reductase from Debaryomycesnepalensis: gene isolation, overexpression and biochemical characterization, Royal Society of Chemistry Advances, 7: 20384-20393. doi:10.1039/C7RA01697B. Impact Factor: 2.936.
  • B.Paidimuddala, A.Rathod and S.N.Gummadi (2017) Inhibition of Debaryomycesnepalensisxylose reductase by lignocellulose derived by-products, Biochemical Engineering Journal 121: 73-82.https://doi.org/10.1016/j.bej.2017.01.019. Impact Factor:3.226.
  • S.M. Pappu and S.N. Gummadi (2017) Artificial neural network and regression coupled genetic algorithm to optimize parameters for enhanced xylitol production by Debaryomycesnepalensis in bioreactor, Biochemical Engineering Journal 120: 136-145. https://doi.org/10.1016/j.bej.2017.01.010.Impact factor: 3.226.
  • S.M. Pappu and S.N. Gummadi (2016) Modelling and simulation of xylitol production in bioreactor by Debaromycesnepalensis NCYC3413 using unstructured  and artificial neural network models, Bioresource Technology 220: 490-499. doi:10.1016/j.biortech.2016.08.097. Impact factor: 5.807
  • S.M. Pappu and S.N. Gummadi (2016) Multi response optimization for enhanced xylitol production by Debaryomyces nepalensis in bioreactor 6: 151.
  • J.M. Vinnakota and S.N. Gummadi (2016) Snail represses the expression of human phospholipid scramblase 4 gene, Gene S0378-1119(16)30513-3.
  • A.V. Nair, S.N. Gummadi and M. Doble (2016) Characterization and biological activities of cyclic (1 → 3, 1 → 6)-β-glucans from Bradyrhizobium japonicum, Biotechnology Letters (in press).
  • A.V. Nair, S.N. Gummadi and M. Doble (2016) Process optimization and kinetic modelling of cyclic (1→3, 1→6)-β-glucans production from Bradyrhizobium japonicum MTCC120, Journal of Biotechnology 226:35-43.
  • U. Sivagnanam, S.N. Murthy and S.N. Gummadi (2016) Identification and characterization of a novel nuclease activity of human phospholipid scramblase 1, BMC Biochemistry 17:10.
  • P. Sivasankar, A.R. Kanna, G. S. Kumar and S.N. Gummadii (2016) Numerical modelling of biophysicochemical effects on multispecies reactive transport in porous media involving Pseudomonas putida for potential microbial enhanced oil recovery application, Bioresource Technology 211: 348-359.
  • V. Poondla, S.K. Yannam, S.N. Gummadi, R. Subramanyam and V.S.O. Reddy (2016) Enhanced production of pectinase by Saccharomyces cerevisiae isolate using fruit and agro-industrial wastes: Its application in fruit and fiber processing, Biocatalysis and Agricultural Biotechnology 6: 40-50.
  • J.M. Vinnakota and S.N. Gummadi (2016) Two c-Myc binding sites are crucial in upregulating the expression of human phospholipid scramblase 1 gene, Biochemical and Biophysical Research Communication 469: 412-417.
  • J.S.M. Pappu, T. Basak and S.N. Gummadi (2015) Mathematical modeling of macroscale phenomena: oxygen transfer for Solid-state fermentation in static tray bioreactor, British Biotechnology Journal 9(3): 1-14.
  • A. Seenivasan, S.N. Gummadi, T.Panda and T. Theodore (2015) Quantification of Lovastatin by Monascuspurpureus, The Open Biotechnology Journal 9: 6-13.
  • V.G. Francis, S.N. Gummadi (2015) Biochemical evidence for Ca2+ independent functional activation of hPLSCR1 at acidic pH, Cellular and Molecular Biology Letters 20 (2): 177-195.
  • K. HimaBindu, S.N. Gummadi (2015) Effect of kLa and fed-batch strategies for enhanced production of xylitol by Debaryomyces nepalensis NCYC 3413, British Biotechnology Journal 5: 24-36
  • A. Retnadas, S.N. Gummadi (2014) Optimization of process conditions for biotransformation of caffeine to theobromine using induced whole cells of Pseudomonas sp. Journal of Bioprocessing and Biotechniques 4 (6):1000178.
  • P. Bhaskar, S.N. Gummadi (2014) Bioconversion of non-detoxified hemicellulose hydrolysates to xylitol by halotolerant yeast Debaryomyces nepalensis NCYC 3413, Journal of Microbial and Biochemical Technology 6: 327-333.
  • Rajesh Kanna, S.N. Gummadi and G. Suresh Kumar (2014) Production and characterization of Pseudomonas putida MTCC 2467, Journal of Biological Sciences, 14: 436-445.
  • V.G. Francis, P. Purnima and S.N. Gummadi (2014) Snail interacts with hPLSCR1 promoter and down regulates its expression in IMR-32, Biochemical and Biophysical Research Communications, 450: 172-177.
  • A. Nagarajan, N. Thirunavukkarasu, T. S. Suryanarayanan and S.N. Gummadi (2014) Screening and isolation of novel glutaminase free L-asparaginase from fungal endophytes, Research Journal of Microbiology, 9:163-176.
  • S. Rayala, V.G. Francis, U. Sivagnanam, S.N. Gummadi (2014) N-terminal proline rich domain is required for scrambling activity of human phospholipid scramblases, Journal of Biological Chemistry, 289: 13206-13218.
  • A. Rajasekharan, V.G. Francis, S.N. Gummadi (2013) Biochemical evidence for energy-independent flippase activity in bovine epididymal sperm membranes: an insight into membrane biogenesis, Reproduction, 146: 209-220.
  • A.K. Shettihalli, S.N. Gummadi (2013) Biochemical evidence for lead and mercury induced transbilayer movement of phospholipids mediated by human phospholipid scramblase 1, Chemical Research in Toxicology 26: 918-925.
  • V.G. Francis, A. Majeed, A. Gopala Krishna, S.N. Gummadi(2013) The single C-terminal helix of human phospholipid scramblase is required for membrane insertion and scrambling activity, FEBS Journal, 280: 2855-2869.
  • K. HimaBindu, N. Shweta, S.N. Gummadi (2013) Production of ethanol and arabitol by Debaryomyces nepalensis: influence of process parameters, AMB express 3:23.
  • K. HimaBindu, N. Shweta, S.N. Gummadi (2012) A statistical approach to optimize xylitol production by Debaryomyces nepalensisinvitro, Food and Nutritional Science 3: 1027-1036.
  • V.G. Francis, S.N. Gummadi (2012) Biochemical and functional characterization of human phospholipid scramblase 4 (hPLSCR4), Biological Chemistry, 10:1173-1181.
  • T.K. Gayatri, M. Doble, S.N. Gummadi (2012) Production and downstream processing of (13)--D-glucan strain from mutant strain of Agrobacterium sp. ATCC 31750, Applied Microbiology and Biotechnology Express, 2: 31
  • V.G. Francis, A. Majeed, S.N. Gummadi(2012) Recovery of functionally active recombinant human phospholipid scramblase 1 from inclusion bodies using N-Lauroyl Sarcosine, Journal of Industrial Microbiology and Biotechnology , 39: 1041-1048.
  • A. Rajasekharan, S.N. Gummadi(2012) Inhibition of biogenic membrane flippase activity in reconstituted ER proteoliposomes in the presence of low cholesterol levels, Cellular and molecular Biology Letters 17:136-152.
  • A. Rajasekharan, S.N. Gummadi(2011) Flip-flop of phospholipids in proteoliposomes reconstituted from detergent extract of intact chloroplast: kinetics and phospholipid specificity, PLos one 6(12): e28401. Doi: 10.1371 / journal.pone.0028401
  • T. Kaliaperumal, S.N. Gummadi, A. Chadha (2011) Synthesis of both enantiomers of ethyl-4-chloro-3-hydroxbutanoate from the prochiral ketone using Candida parapsilosis ATCC 7330, Tetrahedron: Asymmetry 22: 1548-1552
  • T. Kaliaperumal, S.N. Gummadi, A. Chadha (2011) Candida parapsilosis ATCC 7330 can also deracemise 1-arylethanols, Biocatalysis and Biotransformation 29:262-270.
  • Sawan Kumar, S.N. Gummadi (2011) Purification and characterization of a moderately halotolerant NADPH dependent xylose reductase from Debaryomyces nepalensis NCYC 3413, Bioresource Technology 102: 9710-9717.
  • N. Thirunavukkarasu, T.S. Suryanarayanan, T.S Murali, J.P. Ravishankar and S.N. Gummadi (2011) L-asparaginase from marine derived fungal endophytes of seaweeds, Mycosphere online-Journal of Fungal Biology 2:1-9.
  • B. Bhavya, S.N. Gummadi (2011) Enhanced degradation of caffeine and caffeine demethylase production by Pseudomonas sp. in bioreactors under fed-batch mode, Applied Microbiology and Biotechnology 91:1007-1017.
  • Pradeep Lal, Sawan Kumar, S.N. Gummadi (2011) Use of response surface methodology to study the combined effect of salt, pH and temperature on the growth of food spoiling yeast Debaryomyces nepalensis NCYC 3413, Food and Bioprocess Technology 4: 723-730.
  • Sawan Kumar, S.N. Gummadi (2011) Metabolism of glucose and xylose as single and mixed feed in Debaryomyces nepalensis NCYC 3413: production of industrially important metabolites, Applied Microbiology and Biotechnology 89: 1405-1415.
  • Sawan Kumar,G.T. Kalyanasundaram, S.N. Gummadi(2011)Differential response of catalase, superoxide dismutase and glycerol-3-phosphate dehydrogenase to different environmental stresses in Debaryomyces nepalensis NCYC 3413, Current Microbiology 62: 382-387.
  • S.N. Gummadi, S. Devarai (2010) Kinetics of growth and caffeine demethylase production by Pseudomonas sp. in bioreactor, Journal of Industrial Microbiology & Biotechnology 37: 901-908.
  • T. Kaliaperumal, S. Kumar, S.N. Gummadi, A. Chadha (2010) Asymmetric synthesis of (S)-ethyl-4-chloro-3-hydroxybutanoate using Candida parapsilosis ATCC 7330, Journal of Industrial Microbiology and Biotechnology 37: 159-165.
  • P. Sri Lakshmi, S. Handa, S.N. Gummadi and M. Doble (2010) Enhancement and scale-up of β-1,3-curdlan production by Agrobacterium sp., International Journal of Food Engineering 6: article 6, 10.2202/1556-3758.1736.
  • Sawan Kumar, S.N. Gummadi (2009) Osmotic adaptation in halotolerant yeast, Debaryomyces nepalensis NCYC 3413: role of osmolytes and cation transport, Extremophiles 1: 793-805.
  • S.K. Sahu, A. Rajasekharan, S.N. Gummadi (2009) GroES and GroEL are essential chaperones for refolding of recombinant human phospholipid scramblase 1 in E. coli, Biotechnology Letters 31:1745-1752.
  • S.K. Sahu, G.K. Aradhyam, S.N. Gummadi (2009) Calcium binding studies of peptides of human phospholipid scramblases 1 to 4 suggest that scramblases are new class of calcium binding proteins in the cell, Biochemical BiophysicaActa 1790: 1274-1281.
  • S.N. Gummadi, S.S. Dash, S. Devarai (2009) Optimization of caffeine demethylase production by Pseudomonas sp. in bioreactors, Journal of Industrial Microbiology and Biotechnology 36: 713-720.
  • S.N. Gummadi, K.B. Ganesh, S. Devarai (2009) Enhanced degradation of caffeine by immobilized cells of Pseudomonas sp. in agar-agar matrix using statistical approach, Biochemical Engineering Journal 44: 136-141.
  • K. Bakshy, S.N. Gummadi, N. Manoj (2009) Biochemical characterization of Alr1529, a novel SGNH hydrolase variant from Anabaena sp. PCC7120, BBA Proteins and Proteomics 1794: 324-334.
  • S.K. Sahu, S.N. Gummadi (2008) Flippase activity in proteoliposomes reconstituted with Spinaceaoleracea endoplasmic reticulum membrane proteins: evidence for biogenic membrane flippase in plants, Biochemistry 47:10481-10490.
  • S. Kumar, Pradeep Lal, S.N. Gummadi (2008) Growth of halotolerant food spoiling yeast Debaryomyces nepalensis NCYC 3413 under the influence of pH and salt, Current Microbiology 57: 598-602.
  • S.K. Sahu, A. Gopalakrishna, S.N. Gummadi (2008) Over expression of recombinant human phospholipid scramblase 1 in E. coli) and its purification from inclusion bodies, Biotechnology Letters 30: 2131-2137.
  • S.N. Gummadi, S. Kumar (2008) Effect of temperature and salts on growth of halotolerant Debaryomyces nepalensis NCYC 3413, American Journal of Food Technology 3: 356-360.
  • S.S. Dash, S.N. Gummadi (2008) Inducible nature of the enzymes involved in catabolism of caffeine and related methylxanthines by Pseudomonas sp., Journal of Basic Microbiology, 49:227-233.
  • S.S. Dash, S.N. Gummadi (2008) Inhibitory effect of caffeine on growth of various bacterial strains, Research Journal of Microbiology 3: 457-465.
  • S.N. Gummadi, D.S. Kumar (2008) Batch and fed batch production of pectin lyase and pectate lyase by novel strain Debaryomyces nepalensis in bioreactor, Bioresource Technology,99: 874-881.
  • S.S. Dash, S.N. Gummadi (2008) Chemotaxis of Pseudomonas sp. to caffeine and related methylxanthines, Journal of Basic Microbiology 48:130-134.
  • S.N. Gummadi, S. Kumar, C.N.A. Aneesh (2007) Effect of salts on growth and pectinases production by halotolerant yeast, Debaryomyces nepalensis NCYC 3413, Current Microbiology, 54: 472-476.
  • S.S. Dash, S.N. Gummadi(2007)Degradation kinetics of caffeine and related methylxanthines by induced cells of Pseudomonas sp., Current Microbiology, 55: 56-60.
  • T.N. Padma Sree, S. Krishna Kumar, A. Senthilkumar, A. Gopala Krishna, S.N. Gummadi(2007) In vitro effect of Terminalia arjuna bark extract on antioxidant enzyme catalase, Journal of Pharmacology and Toxicology, 2: 698-708.
  • S.N. Gummadi, C. Lionel, S.S. Dash, S. Gokulakrishnan (2007) The effect of glucose on growth and caffeine degradation by Pseudomonas sp. NCIM 5235, Research journal of Microbiology, 2: 327-336.
  • S. Gokulakrishnan, K. Chandraraj, S.N. Gummadi (2007) A preliminary study of caffeine degradation by Pseudomonas sp. GSC 1182, International Journal of Food Microbiology, 113: 346-350.
  • S.S. Dash, S.N. Gummadi (2007) Enhanced biodegradation of caffeine by Pseudomonas sp. using response surface methodology, Biochemical Engineering Journal, 36: 288-293.
  • S.S. Dash, S.N. Gummadi (2007) Optimization of physical parameters for biodegradation of caffeine by Pseudomonas sp.: a statistical approach, American Journal of Food Technology, 2: 21-29.
  • S.N. Gummadi, S. Devarai (2006) How induced cells of Pseudomonas sp. increase the degradation of caffeine, Central European Journal of Biology, 4: 561-571.
  • S.N. Gummadi, D.S. Kumar (2006) The effect of microbiological parameters on production of pectin lyase and pectate lyase by Debaryomyces nepalensis: a statistical approach, Research Journal of Microbiology, 1: 220-227.
  • S.N. Gummadi, D.S. Kumar (2006) Optimization of chemical and physical parameters affecting the activity of pectin lyase and pectate lyase from Debaryomyces nepalensis: a statistical approach, Biochemical Engineering Journal, 30: 130-137.
  • S. Gokulakrishnan, S.N. Gummadi (2006) Kinetics of cell growth and caffeine utilization by Pseudomonas sp. GSC 1182, Process Biochemistry, 41: 1417-1421.
  • S.N. Gummadi, D.S. Kumar (2006) Pectin lyase and pectate lyase from Debaryomyces nepalensis isolated from apple, Research Journal of Microbiology, 1: 152-159.
  • S.N. Gummadi, D.S. Kumar (2006) Enhanced production of pectin lyase and pectate lyase by Debaryomyces nepalensis in submerged fermentation by statistical methods, American Journal of Food Technology, 1: 19-33.
  • S.S. Dash, S.N. Gummadi (2006) Biodegradation of caffeine by Pseudomonas sp. NCIM 5235, Research Journal of Microbiology), 1: 115-123.
  • S.N. Gummadi, Kislay Kumar (2005) Production of extracellular water insoluble -1,3-glucan (curdlan) from Bacillus sp. SNC07, Biotechnology and Bioprocess Engineering, 10, 546-551.
  • M. Agrawal, S. Pradeep, K. Chandraraj, S.N. Gummadi(2005) Hydrolysis of starch by amylase from Bacillus sp. KCA 102: a statistical approach, Process Biochemistry, 40, 2499-2507.
  • Q-L. Chang, S.N.Gummadi,A.K.Menon (2004) Chemical modification identifies two populations of glycerophospholipidflippase in rat liver ER, Biochemistry, 43, 10710-10718.
  • G.S.N. Naidu and T. Panda (2003) Studies on pH and thermal deactivation of pectolytic enzymes from Aspergillus niger. Biochemical Engineering Journal, 16, 57-67.
  • R. Muralidhar, S.N. Gummadi, V. VenkataDasu and T. Panda (2003) Statistical analysis on some critical parameters affecting the formation of protoplasts from the mycelium of Penicilliumgriseofulvum. Biochemical Engineering Journal, 16, 229-235.
  • D.S. Rana, K. Thèodore, G.S.N. Naidu and T. Panda (2003) Stability and kinetics of -1,3-glucanse from Trichoderma harzianum. Process Biochemistry, 39, 149-155.
  • S.N. Gummadi, T. Panda (2003) Analysis of kinetic data of pectinases with substrate inhibition. Journal of Microbiology and Biotechnology, 13, 332-337.
  • S.N. Gummadiand A.K. Menon(2002)Transbilayer movement of dipalmitoylphosphatidylcholine in proteoliposomes reconstituted from detergent extracts of endoplasmic reticulum: kinetics of transbilayer transport mediated by a single flippase and identification of proteins fractions enriched in flippase activity. Journal of Biological Chemistry, 277, 25337-25343.
  • Tim Robinson, Bennett Chandran, G. Sathya Naidu and Poonam Singh (2002) Studies on the removal of dyes from a synthetic textile effluent using barley husk in static batch mode and in continuous flow packed bed reactor. Bioresource Technology, 85, 43-49.
  • G.S.N. Naidu, I.Y. Lee, O.K. Cho and Y.H. Park (2001) Conversion of (-butyrobetaine to L-carnitine by Achromobactercycloclast. Journal of Industrial Microbiology and Biotechnology, 26, 309-315.
  • G.S.N. Naidu, I.Y. Lee, E.G. Lee, G.H. Kang and Y.H. Park (2000) Microbial and Enzymatic synthesis of L-Carnitine. Bioprocess Engineering, 23, 627-635
  • T. Panda and G.S.N. Naidu (2000) Rotating simplex method of optimization of physical parameters for higher production of extracellular pectinases in bioreactor. Bioprocess Engineering, 23, 47-49.
  • G.S.N. Naidu and T. Panda (1999) Performance of pectolytic enzymes during hydrolysis of pectic substances under assay conditions: A statistical approach. Enzyme and Microbial Technology, 25, 116-124.
  • G.S.N. Naidu and T. Panda (1999) Behaviour of pectinases under process conditions. Bioprocess Engineering, 21, 397- 400.
  • T. Panda, G.S.N. Naidu and J. Sinha (1999) Multiresponse analysis of microbiological parameters affecting the production of pectolytic enzymes: a statistical view. Process Biochemistry, 35, 187-195.
  • G.S.N. Naidu and T. Panda (1998) Application of response surface methodology to evaluate some aspects on stability of pectolytic enzymes from Aspergillus niger. Biochemical Engineering Journal, 2, 71-77.
Review Articles

Chapter in a book

  1. S.N. Gummadi, S. Hrafnsdóttir, J. Walnet, W.E. Watkins and A.K. Menon (2003) Reconstitution and assay of biogenic membrane-derived phospholipid flippase activity in proteoliposomes. In: Membrane protein protocols (ed. B. Selinsky), Human Press, Vol. 228, pp 271-279.
  2. S.N. Gummadi, N. Manoj, D. Sunil Kumar (2006) Structural and biochemical properties of pectinases. In: Industrial Enzymes: Structure, Function and Applications (eds. J. Polaina and A.P. MacCabe, Springer, pp 99-115.
  3. S.N. Gummadi, D. Sunil Kumar, S.S. Dash, S.K. Sahu (2009) Industrially important carbohydrate degrading enzymes from yeasts: Pectinases, Chitinases and β-1,4-glucanases. In: Yeast Biotechnology: Diversity and Applications (eds. T. Satyanarayana and G. Kunze), Springer, pp 673-691.
  4. S.S. Dash, S.N. Gummadi (2012) Biotechnological approaches to caffeine degradation: current trends and perspectives. In: Microorganisms in sustainable agriculture and biotechnology (eds. T. Satyanarayana et al.), Springer, pp 435-452
  5. A.R. Kanna, S.N. Gummadi and G.S. Kumar (2016) Evaluation of bio-surfactant mediated microbial enhanced oil recovery using sand packed column, In: Biotechnology and Biochemical Engineering – Select Proceedings of ICACE 2015 (eds. Prasanna et al.), Springer, pp 121-128.
  6. S.S. Dash, A. Retnadhas, N. Rao and S.N. Gummadi (2016) Industrial applications of caffeine degradation by Pseudomonassp, In: Biotechnology and Biochemical Engineering – Select Proceedings of ICACE 2015 (eds. Prasanna et al.), Springer, pp 171-178. ISBN-13: 978-9811019197.

Book

  1. R. Ravi, R. Vinu and S.N. Gummadi (eds) (2017) Coulson and Richardson’s Chemical Engineering, Vol 3A: Chemical and Biochemical Reactors and Reaction Engineering, 4th Edition, I ChemE, Elsevier, UK.
  2. B.D. Prasanna, S.N. Gummadi and Praveen V. Vadlani (eds) (2016) Biotechnology and Biochemical Engineering, Selected Proceedings of ICACE 2015, Springer, Singapore.
  3. V. Geetha, S.N. Gummadi and M. Doble (2012) Cyclic b-glucans from microorganisms: Production, properties and applications, Springer Briefs in Microbiology, Springer.
  4. M. Doble and S.N. Gummadi (2007) Biochemical Engineering, Prentice Hall India, New Delhi

National Conference

  1. N. Rao and S.N. Gummadi,Degradation of caffeine present in coffee effluent and raw tea samples using Pseudomonas sp. NCIM 5235Pollution Control: Chemical & Biological Techniques, Guntur, Andhra Pradesh, Mar 26-27 2012
  2. A.K. Shettihalli and S.N.Gummadi, Biochemical & biophysical characterization of heavy metal binding properties of human phospholipid scramblase 1, Annual Meeting of the Indian Biophysical Society, Chennai, India, Jan 19-21 2012
  3. V.G. Francis and S.N. Gummadi, Biochemical characterization of human phospholipid scramblase 4 (hPLSCR4) , Annual Meeting of the Indian Biophysical Society, Chennai, India, Jan 19- 2012
  4. A. Rajasekharan and S.N. Gummadi, Localisation and characterization of plant biogenic membrane flippases, Annual Meeting of the Indian Biophysical Society, Chennai, India, Jan 19-21 2012
  5. S.K. Sahu. S.N. Gummadi and G.K. Aradhyam, Probing the microenvironment of Ca2+ binding in human phospholipid scramblases, 77th Annual Conference of Society of Biological Chemists, IIT Madras, Chennai, December 2008
  6. A. Senthilkumar, T.N. Padmasree, A. Gopala Krishna and S.N. Gummadi,In vitro studies on Terminalia arjuna bark extract: Its effect on antioxidant enzyme catalase, Joint Annual Meeting of The International Society of Heart Research (Indian Section), International Academy of Cardiovascular Sciences (Indian Chapter) & Heart Failure Society, Postgraduate Institute of Medical Education and Research (PGIMER) Chandigarh, India, 29 Feb – 2 Mar 2008
  7. S. Kumar, N.A. Aneesh Chandran, S.N. Gummadi, Effects of high salt concentration on growth of Debaryomyces nepalensis. In Conference on Microbiology: The challenges ahead. Abstracts of 47th Annual conference of Association of Microbiologists of India, Bhopal, December 2006
  8. S. Gowri, S.N. Gummadi and M. Doble, Screening of novel strain for production of curdlan.       In Conference on Microbiology: The challenges ahead. Abstrats of 47th Annual conference of Association of Microbiologists of India, Bhopal, December 2006
  9. D.S. Kumar and S.N. Gummadi, Screening and production of Microbial pectic lyases. In Biogenics-05, Abstracts of National Symposium on Recent Trends in Biotechnology, Alappuzha, Kerala, India, March 2005 (II prize for best poster presentation)
  10. S. Gokulakrishnan and S.N. Gummadi, Caffeine degradation by Pseudomonas sp. isolated from coffee cultivation region. In Biogenics-05, Abstracts of National Symposium on Recent Trends in Biotechnology, Alappuzha, Kerala, India, March 2005
  11. G.S.N. Naidu and T. Panda, Stability of pectolytic enzymes. Conference on Microbes in sustainable Development. Abstracts of 38th Annual meeting of Association of Microbiologists of India), New Delhi, December 1997

International Conference

  1. H. Kumdam, S.N. Gummadi, Batch production of xylitol and arabitol by Debaryomyces nepalensis NCYC 3413 in a stirred tank reactor, First
    International and Third National Conference on Biotechnology,
    Bioinformatics and Bioengineering (June 28-29, 2013) Tirupati, Andhra Pradesh, India.
  2. N. Arumugam, S.N. Gummadi, Isolation and characterization of food grade glutaminase free L-asparaginase enzyme from endophytic fungi, First
    International and Third National Conference on Biotechnology,
    Bioinformatics and Bioengineering (June 28-29, 2013) Tirupati, Andhra Pradesh, India.
  3. B. Gilbert, S.A. Retnadas, S.N. Gummadi, Purification and characterization of caffeine demethylase and biodegradation of caffeine by Pseudomonas putida, First International and Third National Conference on Biotechnology,
    Bioinformatics and Bioengineering (June 28-29, 2013) Tirupati, Andhra Pradesh, India.
  4. A. Rajasekharan, S.N. Gummadi, Identification of biogenic membrane flippase in bovine sperm cells, First International and Third National Conference on Biotechnology, Bioinformatics and Bioengineering (June 28-29, 2013) Tirupati, Andhra Pradesh, India.
  5. U. Sivagnanam, S.N. Gummadi, Biochemical characterization of human phospholipid scramblases interaction with topoisomerase II, First International and Third National Conference on Biotechnology, Bioinformatics and Bioengineering (June 28-29, 2013) Tirupati, Andhra Pradesh, India.
  6. V.G. Francis, S.N. Gummadi, pH dependent conformation changes in human phospholipid scramblase (hPLSCR1), First International and Third National Conference on Biotechnology, Bioinformatics and Bioengineering (June 28-29, 2013) Tirupati, Andhra Pradesh, India.
  7. S. Rayala, U. Sivagnanam, V.G. Francis, S.N. Gummadi, Biophysical and biological characterization of human phospholipid scramblase 2, Indian institute of Science, International conference on biomolecular forms and functions a celebration of 50 years of the Ramachandran map (January 8-11, 2013), Bangalore , India.
  8. Rajesh Kanna, S.N. Gummadi, Suresh Kumar, Experimental investigations on microbial enhanced oil recovery, Petrotech 2012, 10th International oil & gas conference and exhibition (October 14 – 17, 2012), New Delhi, India.
  9. A.K. Shettihalli, S.N. Gummadi, Biochemical and Biophysical characterization of heavy metal ion binding properties of human phospholipid scramblase 1: Target for toxicological implications, 48th International Conference on Medicinal Chemistry (July 4-6, 2012), Poitiers, France.
  10. V.G. Francis, A. Majeed, G.K. Aradhyam and S.N. Gummadi, Overexpression, purifiacation and biochemical characaterization of Ca2+binding properties of hPLSCR1, 7th Asian Biophysics Symposium and Annual Meeting of the Indian Biophysical Society (Jan 30 – Feb 2, 2011), New Delhi, India.
  11. A. Majeed, V.G. Francis, G.K. Aradhyam and S.N. Gummadi, Ca2+ binding in transmembrane deleted mutant of HPLSCR1- a spectroscopic study, 7th Asian Biophysics Symposium and Annual Meeting of the Indian Biophysical Society (Jan 30 – Feb 2, 2011), New Delhi, India.
  12. T. Kaliaperumal. S.N. Gummadi, A. Chadha, Scale up for production of Candia parapsilosis ATCC 7330: An efficient biocatalyst for asymmetric synthesis, Enzymes and Biocatalysis (2010), Shanghai, China
  13. T. Kaliaperumal. S.N. Gummadi, A. Chadha, Role of dissolved oxygen during the growth of Candida parapsilosis ATCC 7330 on the asymmetric reduction of ethyl-4-chloro-e-oxobutanoate, FSES, IIT Kharagpur (2009), India
  14. A. Rajasekharan. S.N. Gummadi, Effect of cholesterol on biogenic membrane flippase activity, The Biochemical Society Annual Symposium on Recent Trends in Membrane Biochemistry (Jan 5-7, 2011), Cambridge, UK.
  15. S. K. Sahu, A. Gopala Krishna, S.N. Gummadi, Increased solubility of hPLSCR1 in E. coli (BL-21)by addition of ethanol and decrease in temperature, 3rd International Congress on Bioprocesses in Food Industries and 5thConvention of the Biotech Research Society India (November 6-8, 2008), Osmania University, Hyderabad, India.
  16. S. Kumar, Annie D Souza, S.N. Gummadi, Osmoregulation in food spoiling halotolerant yeast Debarymyces nepalensis NCYC 3413, 3rd International Congress on Bioprocesses in Food Industries and 5th Convention of the Biotech Research Society India (November 6-8, 2008), Osmania University, Hyderabad,India.
  17. D.S. Kumar and S.N. Gummadi, Optimization of caffeine degradation by immbolised cells of Pseudomonas putidaNCIM 5235 using various polymer matrices, International Conference on Biotechnology for sustainable development (7-9 January 2008), National Chemical Laboratories, Pune, India.
  18. S.N. Gummadi and S. Gokulakrishnan, Microbial degradation of caffeine, Oral presentation, International Symposium on Biocatalysis and Bioprocess Engineering (16-18 Oct 2005) East China University of Science and Technology, Shanghai, China.
  19. P.S. Babu, S. Rai, M. Arora, S.N.Gummadi, K. Chandraraj, “Thermotolerant biocatalysts for conversion of biomass to fuel ethanol and chemicals, Oral presentation, 2nd International Ukraninan conference on Biomass for energy (20-22 Sept 2004), Kyiv, Ukraine Session 2(liquid fuels from Biomass).
  20. T.V. Subramanian and G. Sathya Narayana Naidu, Biodegradation of Caffeine using Immobilized Mixed Function oxidases in packed bed reactors, Third International Conference in Gas-Solid-Liquid Reactor Engineering held at Kanagawa, Japan, December 7-10, 1997

 Honors/Awards

  • Recipient of Talented Industrial Biotechnologist Award from Association of Biotechnology and Pharmacy, 2013
  • Recipient of NASI-Scopus Young Scientist award in the field of Biological Sciences, 2012 (Elsevier)
  • Fellow of Society for Applied Biotechnology in the field of Industrial Biotechnology, 2010
  • Recipient of Distinguished Bioengineer Award from Society for Applied Biotechnology, 2010
  • Recipient of Young Scientist award in the area of Biotechnology from Biotechnology Research Society of India, 2007
  • Recipient of Mentor Recognition Award, 2007
  • Recipient of Young Scientist Award in the area of Industrial and Food Microbiology from Association of Microbiologists of India, 2006
  • Cited in Marquis Who’s Who Asia 2006 I edition
  • Elected as Editorial Board member in Research Journal of Microbiology, Academic Journals, USA
  • Editorial Board member in Research Journal of Agriculture and Biological Sciences
  • Editorial Board member in Research Journal of Cellular and Molecular Biology
  • Awarded fellowship grant from American Heart Association for a period of two years (July 01 2002 – June 30 2004)