Dr. Ranjana Prakash





Biotransformations and Biocatalysis



Contact No.


Research Interests/Specialization:

Bio-catalysis, transformation and esterification

Education and Training

1999 – PhD: Harcourt Butler Technological University, Kanpur

Professional Affiliations

  • Lecturer (June 1999 – June 2008) School of Chemistry and Biochemistry, Thapar Institute of Engineering & Technology, Patiala
  • Assistant Professor (June 2008 – June 2011) School of Chemistry and Biochemistry, Thapar Institute of Engineering & Technology, Patiala
  • Associate Professor (July 2011 – 2017) School of Chemistry and Biochemistry, Thapar Institute of Engineering & Technology, Patiala
  • Professor (2017 – to date) School of Chemistry and Biochemistry, Thapar Institute of Engineering & Technology, Patiala

Teaching Activities

  • Undergraduate Courses
    • UCB 008: Applied Chemistry

List of Publications (SCI Journals)

  1. Aulakh S, Sharma A, Tejo Prakash N, Prakash R, 2017, Biocatalyzed esterification of oleic acid using cell suspension and dried biomass of Aspergillus sp. RBD01. Biocatalysis and Biotransformation, DoI: 10.1080/10242422.2017.1292502.
  2. Prakash R, Rather RA, Kaur M and Pal B, 2017, Oxidative degradation of aliphatic carboxylic acids by photocatalysis with bare and Ag-loaded TiO2 under UV light irradiation, Particulate Science and Technology, DoI: 10.1080/02726351.2016.1241845.
  3. Jaiswal SK, Tejo Prakash N, Prakash R, 2017, 1H NMR Based Quantification of Ethyl Ester in Biodiesel: A Comparative Study of Product-Dependent Derivations, Analytical Chemistry Letters, 6: 518-525.
  4. Ahluwalia S, Tejo Prakash N, Prakash R, Pal B, 2016, Improved degradation of methyl orange dye using bio co-catalyst Se nanoparticles impregnated ZnS photocatalyst under UV radiation, Chemical Engineering Journal, 306: 1041-1048.
  5. Gangwar, AK, Tejo Prakash N, Prakash, R. 2016, An eco-friendly approach: Incorporating a xylanase stage at various places in ECF and chlorine-based bleaching of Eucalyptus pulp. BioResources. 11: 5381-5388.
  6. Gangwar AK, Tejo Prakash N, Prakash R, 2015, Amenability of Acacia and Eucalyptus hardwood pulps in elemental chlorine-free bleaching: Application and efficacy of microbial xylanase. BioResources, 10: 8404-8413.
  7. Jaiswal SK, Prakash R, Tejo Prakash N. 2015, Selenium in storage proteins of wheat cultivated on selenium impacted soils of Punjab, India. Acta Alimentaria, 44: 235-241.
  8. Bhatia P, Pandey S, Prakash R, Tejo Prakash N, 2014, Enhanced anti-oxidant activity as a function of selenium hyperaccumulation in Agaricus bisporus cultivated on Se-rich agri-residues. Journal of Biologically Active Products from Nature, 4: 354-364
  9. Bhatia P, Prakash R, Tejo Prakash N, 2014, Enhanced antioxidant properties as a function of selenium uptake by edible mushrooms cultivated on selenium-accumulated waste post-harvest wheat and paddy residues, International Journal of Recycling of Organic Waste in Agriculture, 3: 127-132.
  10. Bhatia P, Bansal C, Prakash R, Tejo Prakash N. 2014, Selenium uptake and associated anti-oxidant properties in Pleurotus fossulatus cultivated on wheat straw from seleniferous fields. Acta Alimentaria, 43: 280-287.
  11. Gangwar AK, Tejo Prakash N, Ranjana Prakash, 2014, Applicability of microbial xylanases in paper pulp bleaching: A Review. BioResources, 9: 3733-3754
  12. Sharma A, Verma A, Luxami V, Melo JS, D’Souza SFD, Tejo Prakash N, Prakash R. 2013, A New 1H NMR based derivation for quantification of alkyl esters generated using biocatalysis. Energy and Fuels,27: 2660-2664.
  13. Aulakh SS, Tejo Prakash N, Prakash R. 2013, Transesterification of triglycerides by dried biomass of Aspergillus sp. Journal of Oleo Science, 62: 297-303.
  14. Bhatia P, Aureli F, D’Amato M, Prakash R, Cameotra SS, Tejo Prakash N, Cubadda, F. 2013, Selenium bioaccessibility and speciation in biofortified Pleurotus mushrooms grown on selenium-rich agricultural residues. Food Chemistry, 140: 225-230.
  15. Bhatia P, Prakash R, Tejo Prakash N, 2013, Selenium uptake by edible oyster mushrooms (Pleurotus sp.) from selenium-hyperaccumulated agricultural residues. Journal of Nutritional Science and Vitaminology, 59: 69-72.
  16. Jaiswal S, Prakash R, Acharya R, Reddy AVR, Tejo Prakash N, 2012, Selenium content in seed, oil and oil cake of Se hyperaccumulated Brassica juncea (Indian Mustard) cultivated in seleniferous region of India. Food Chemistry, 134: 401-404.
  17. Jaiswal S, Prakash R, Acharya R, Nathaniel TN, Reddy AVR, Tejo Prakash N, 2012, Bioaccessibility of selenium from Se rich food grains of seleniferous region of Punjab, India as analyzed by Instrumental and Chemical NAA. CyTA Journal of Food, 10, 160-164.
  18. Aulakh, S.S., Chhibber, M., Mantri, R., Prakash, P., 2011, Whole cell catalyzed esterification of fatty acids to biodiesel using Aspergillus sp. Biocatalysis and Biotransformation,29: 354-358.
  19. Prakash, R., Aulakh, S.S., 2011, Transesterification of used edible and non-edible oils to alkyl esters by Aspergillus sp. as a whole cell catalyst. Journal of Basic Microbiology, 51: 1-7
  20. Tejo Prakash N, Sharma N, Prakash R, Nathaniel N, Acharya R, Reddy AVR, 2010. Selenium fortification and pro/anti-oxidant responses in Allium cepa (onion plant) cultivated in Se supplemented soils. Experimental Agriculture, 46: 531-540.
  21. Prakash, R., Aulakh, S.S., Kalra, R., 2010, Effect of frying time on free fatty acid generation and esterification rate in Aspergillus sp. catalysed transesterification of cottonseed oil. Biocatalysis and Biotransformation, 28: 403-407
  22. Aulakh SS, Ranjana Prakash, 2010. Optimization of medium and process parameters for production of lipase from an oil tolerant Aspergillus sp. Journal of Basic Microbiology, 50: 37-42.
  23. Mathur C, Prakash R, Ali A, Kaur J, Cameotra SS, Tejo Prakash N, 2010. Emulsification and tranesterification of oil by a soil borne fungus, Syncephalastrum racemosum. Defence Science Journal, 60: 151-154.
  24. Aulakh SS, Agarwal S, Chhibber M, Ranjana Prakash, 2010. Lipase catalyzed tranesterification of cottonseed oil. Journal of Pure and Applied Microbiology, 4: 367-372.
  25. Tejo Prakash N, Sharma N, Prakash R, Acharya R, 2010. Removal of selenium from Se enriched natural soils by a consortium of Bacillus isolates. Bulletin of Environmental Contamination and Toxicology, 84: 214-218.
  26. Gupta, S., Ranjana Prakash, Carolyn I. Pearce, Richard A.D. Pattrick, M. Hery, Jonathan R. Lloyd, Prakash NT, 2010, Selenium mobilization by Pseudomonas aeruginosa (SNT-SG1) isolated from seleniferous soils from India, Geomicrobiology Journal, 27: 35-42
  27. Prakash NT, Sharma N, Ranjana Prakash, Raina KK, Fellowes J, Pearce CI, Lloyd JR, Pattrick RAD, 2009, Aerobic microbial manufacture of nanoscale selenium: Exploiting nature’s bionanomineralization potential. Biotechnology Letters.  31: 1857-1862
  28. Sharma N, Ranjana Prakash, Srivastava A, Sadana US, Acharya R., Prakash NT., Reddy AVR, 2009, Profile of selenium in soil and crops in seleniferous area of Punjab, India by neutron activation analysis. Journal of Radioanalytical and Nuclear Chemistry  281: 59-62
  29. Arun Kapoor,  Ranjana Prakash, Tejo Prakash N, 2003. Predictive Biotransformation of Potential Toxic Chemicals, Chemicke Listy, 97: 472-473. (impact factor: 0.45)
  30. Srivastava AP, Ranjana Bajpai, Srivastava RB, 1998, Anti-termite treatment of rubber cups used in underground mines, Materials und Organismen, P1: 1-6.

Sponsored Research Projects

S. No Project Title Sponsoring Agency
1 Localization of selenium and other trace elements in edible crops cultivated in seleniferous soils (Ongoing) DST-RFBR
2 Biofortification of selenium from in edible mushrooms from Se-rich crop residues (Ongoing) DBT-NBDB
3 Studies on anti-inflammatory responses as function of bioavailable selenium from selenium-rich cereal grains (Ongoing) CSIR
4 Strain improvement of Aspergillus sp. for enhanced transesterification of waste cooking and non-edible oils using induced mutation by gamma irradiation (Ongoing) BRNS
5 Fungus mediated biodiesel generation from waste edible oils (Ongoing) CSIR
6 Role of plant microbe interactions in removal and volatilization of selenium from seleniferous soils (Completed) CSIR
7 Biogenesis of metal nanoparticles (Completed) DRDO
8 Studies on selenium and its speciation in environmental and biological samples from seleniferous region of Punjab (Completed) BRNS

Other Professional Activities:

  • Reviewer for international journals (published by Elsevier, Wiley, Springer, Taylor-Francis, etc.)