0476 2803104

Suja Subhash currently serves as Assistant Professor at Amrita School of Biotechnology, Amritapuri. She received her Master's in Microbiology from Bharathiar University, Coimbatore in 2009.

Professional Affiliations (Roles) : Currently serves as Academic coordinator UG Programs, School of Biotechnology.

Educational Qualification

  • 2007 - 2009: M. Sc. (Microbiology),
    CMS College of Science and Commerce, Coimbatore, Bharathiar university
  • 2004 - 2007: B. Sc. (Microbiology),
    CMS College of Science and Commerce, Coimbatore, Bharathiar university


  • CSIR - National Eligibility Test (NET) for Research Fellowship and Eligibility for Lectureship in Indian Universities (2017)
  • 2004 - 2007: Rank holder in Bharathiar University (B.Sc Microbiology)

Major Research Interests

  • Control of enteric pathogens in sewage by exploring the biocontrol potential of fungi.
  • Production and characterization of Proteases from Penicillium citrinum.
  • Anthelminthic studies using Caenorhabditis elegans as a model nematode.
  • Control of Fusarium infections in ginger plant using Plumbagin.

Labs you are associated with  

Sanitation Biotechnology Lab

  • Funded Projects
    1. Completed :Development of bacteriophages and lytic agents to target and kill pathogens and odour-producing bacteria in fecal waste / Funded by DBT-BIRAC-BMGF (Govt of India - Bill & Melinda Gates Foundation)

BRITE or Other School Projects  

BRITE Projects:

  • 2012: Studies on the effect of fungal enzymes on bacterial biofilm inhibition-Priyanka Poulose ,Priyanka V.J ,Aswathy .P. Nair , Aswathy .A, Disha Nair
  • 2013: Effect of environmental factors on Klebsiella biofilm formation- Asha.K.N,  Chinnu Rose Joseph, Harikumar.R.S, Thushara.C.P, Vinija.V
  • 2014: Inhibitory effect of plant extracts on siderophore  production in Klebsiella pneumoniae- Anupama J Nair, Ardra Sanalkumar, Devi Krishna L, Gokul S Das,Shilpa Ajith, Swathy S Kumar
  • 2015: Biofibres from agricultural wastes: biobleaching of banana fibre using microbial enzymes- Gopika.J,  ReshmaRajan,Susmi Shine . K ,VidyaViswan
  • Production optimization and characterization of chitinase enzyme produced by Aspergillus spp.,- Aji Johny, Aneesh Kumar, Nitthya K, Shyamili Goutham,Swathy S Pillai
  • 2016: Antagonistic effects of fungi on nematodes, C.elegans as a model organism-  Adithya.P, Anandhu Presannan , Arya M S ,  Lakshmi P R ,Salini S S
  • 2017: Enzymatic analysis and invitro ovicidal effect of nematophagous fungi on C.elegans-  Anu B Kuruvelil, Aswathi P.V, Deepasree K, Navyamol C.D, Nimisha Das P.V
  • 2018: Identification of nematophagous fungi and evaluation of its biocontrol efficacy on C.elegans- A Arish Arasu, Aiswarya. N, Anjali Krishna ,Ardra .P .S,K. U. Meera,Parvati Ashok Palankar,Swetha .S . Mani
  • Screening of phytochemicals for antifungal activity against soft rot disease caused by Fusarium oxysporum”- Khaderbad Maruthi Sai Muni Yasaswi, Ashwin P Nambiar, Nidhin PT, Sreelekshmi S, Arya R, Muhammed Sha Ashil K S, Akshay M
  • 2019: Characterization of crude protease from Penicillium citrinum and its potential as a biocontrol agent- Adithya Shaji,Amruta S Menon,Chesvin Varghese,N.  Fadila ,Reshma Suresh,Smaran Banerjee, Sreelakshmi Ashok
  • 2020: Characterization of protease from Penicillium citrinum and its potential as a biocontrol agent on C. elegans- Abhirami.M, Anjitha.S, Archana.L,Arsha.S.Raju , Manish.M , Sreelakshmi Sethumadhavan

MSc Projects:

  • 2018: Effect of Aspergillus niger spent media against enteric pathogens- Reshma.A.S
  • 2020: Potential application of Aspergillus niger and Pseudomonas isolates in the biocontrol of enteric pathogens- Radhika R Krishnan

Teaching (Course Code, Course Name)


Publication Type: Conference Proceedings

Year of Publication Title


S. Subhash, “Screening of phytochemicals for antifungal activity against the soft rot disease caused by Fusarium oxysporum”, Proceedings of International seminar on Phytochemistry. 2018.


S. Subhash, “Effect of environmental factors on Klebsiella pneumoniae biofilm formation”, Proceedings of 27th Swadeshi Science Congress. 2017.


S. Subhash, Anupama Nair J, Ardra Sanalkumar, Devi L. Krishna, Gokul S. Das, Shilpa Ajith, Swathy S. Kumar, and Dr. Bipin G. Nair, “Inhibitory effect of plant extracts on siderophores production by Klebsiella pneumoniae”, Proceedings of 27 Kerala Science Congress. p. 34, 2015.


S. Subhash, Aswathy A., Aswathy P., Disha Nair, Priyanka Poulouse, Priyanka V. J., and Dr. Bipin G. Nair, “Studies on the effect of fungal enzymes on Klebsiella Biofilm inhibition”, Amrita Bioquest 2013. Elsevier publications, Amrita School of Engineering, p. 489, 2014.

Publication Type: Journal Article

Year of Publication Title


S. Subhash, A. B. Kuruvelil, Aswathi, P. V., K. Deepasree, C. D. Navyamol, Das N. P. V., P. Prasad, Dr. Bipin G. Nair, and Dr. Sanjay Pal, “Screening of nematicidal activities of biocontrol fungi Aspergillus niger and Penicillium oxalicum using C. elegans as model”, Pollution Research Paper, vol. 37, pp. 128-134, 2018.[Abstract]

One of the major concerns of reusing the wastewater for irrigation or agriculture is the health risks associated with the nematode eggs. Inadequate usage of toxic chemicals as nematicides has urged us to develop an environmentally safe alternative. The predatory nematophagous fungi have been widely used in control of nematode as an alternative strategy. Extracellular enzymes like chitinases, lipases, and proteases from fungi appeared to be a promising candidate that can damage the main structural components in the nematode eggshell and cuticle. This study aimed to evaluate the nematicidal potential of two biocontrol fungi Aspergillus niger and Penicillium oxalicum against Caenorhabditis elegans as the nematode model. The fungi were grown at different point of time in a minimal production media supplemented with olive oil, casein, and colloidal chitin to induce the production of lipase, protease and chitinase enzyme respectively. Enzyme activity and specific activity were quantified and compared. All the crude enzyme samples with the highest activity were used to treat the eggs and larvae of C. elegans and the rate of hatch inhibition and mortality was determined. Best effect (100% mortality) was obtained with oil and casein enriched media extract of P. oxalicum whereas Aspergillus niger extract had the best inhibition of egg hatching with oil (82%) and protein (72%) enriched media extract. Hence cultivation of the selected fungi by enrichment with the specific substrate (protein/oil) might potentially be used to reduce the nematode load in wastewater or compost.

More »»

Publication Type: Conference Paper

Year of Publication Title


S. Subhash, “Antagonistic effect of fungal enzymes on nematodes, C.elegans as a model organism”, in Proceedings of NGBT , 2016.


S. Subhash, “Production, Optimization and Characterization of efficient Chitinase producing Aspergillus spp”, in new horizons in Biotechnology, 2016.

Faculty Research Interest: