Mary Anne Amalaradjou

Associate Professor- Food Microbiology

Dr. Mary Anne AmalaradjouContact

   Phone: (860) 486-6620


   Office: George White Bldg., Room 212B

George White Bldg., Room 7

   Lab Phone: (860) 486-0158



  • Post-doctoral Research Associate (Food Science), Purdue University, 2013
  • Ph.D. (Animal Science), University of Connecticut, 2010
  • M.S. Veterinary Science (Biochemistry), Indian Veterinary Research Institute, 2004
  • Doctor of Veterinary Medicine, Pondicherry University, 2002


Classes Taught

ANSC 3318/5618  Probiotics and Prebiotics
ANSC 4341 Food Microbiology and Safety
ANSC 4342W Scientific Writing in Food Microbiology and Safety

Research Interests

  • Probiotics based approaches to control foodborne infections
  • Host- microbiome interactions in health and disease
  • Elucidation of virulence mechanisms in foodborne pathogens using molecular methods, next-generation sequencing, tissue culture and animal models
  • Development of molecular methods for rapid detection of food-borne microorganisms


  • Foundation for Food and Agriculture (FFAR), New Innovator Award, 2016
  • Research Excellence Program (REP) Award, 2015
  • UCONN outstanding Senior Women’s Academic achievement award for graduate students, 2011                        
  • President Michael J Hogan summer scholarship for outstanding Graduate student at UConn, 2010     
  • Graduate School Pre-Doctoral Fellowship by the Graduate School, UConn, 2009
  • Second place, Food Microbiology Division Graduate Student Paper competition, IFT 08 Annual Meeting, 2008
  • Outstanding Graduate Student Award, Department of  Animal Science, UConn
  • Second place, Muscle Food Division Graduate Student Paper competition, IFT 07 Annual Meeting, 2007
  • Second place, Graduate Student Forum paper competition, The College of Agriculture and Natural Resources, UConn

In the News

Recent Publications

Manuscripts in Peer-reviewed Journals

Narayanan, A., Muyyarikkandy, MS., Mooyottu, S., Venkitanarayanan, K., Amalaradjou, MAR. 2017. Oral supplementation of trans-cinnamaldehyde reduces uropathogenic Escherichia coli colonization in a mouse model. Lett Appl Microbiol. 64:192.

Narayanan A, Surendran Nair M, Prasad, DK, Baskaran SA, Venkitanarayanan K, Amalaradjou MAR. 2016. Inactivation of Acinetobacter baumannii Biofilms on Polystyrene, Stainless Steel and Urinary Catheters by Octenidine Dihydrochloride. Front Microbiol. 7:847.

Narayanan A, Baskaran SA, Amalaradjou MAR, Venkitanarayanan K. 2015. Anticarcinogenic properties of medium chain fatty acids on human colorectal, skin and breast cells in vitro. Int. J. Mol. Sci. 16(3):5014-5027.

Amoolya Narayanan, Sangeetha Ananda Baskaran, Mary Anne Roshni Amalaradjou and Kumar Venkitanarayanan. Anticarcinogenic properties of medium chain fatty acids on human colorectal, skin, and breast cancer cells in vitro. Int J Mol Sci. 16(3):5014-5027.

Amalaradjou MAR, Kim KS, Venkitanarayanan K. 2014. Sub-inhibitory concentrations of trans-cinnamaldehyde attenuate virulence in Cronobacter sakazakii in vitro. Int. J. Mol. Sci. 15(5):8639-8655.  

Amalaradjou MAR, Venkitanarayanan, K. 2014. Antibiofilm effect of octenidine hydrochloride on Staphylococcus aureus, MRSA and VRSA. Pathogens. 3(2):404-416

Li X, Ximenes E, Amalaradjou MAR, Vibbert HB, Foster K, Jones J, Liu X, Bhunia AK, Ladisch MR. 2013. Rapid Sample Processing for Foodborne Pathogen Detection via Crossflow Microfiltration. Appl. Environ. Microbiol. 79(22):7048-7054.

Amalaradjou MAR, Bhunia AK. 2012. Bioengineered Probiotics, a Strategic Approach to Control Enteric Disease. Bioengineered. (In press).

Amalaradjou MAR, Bhunia AK. 2012. Modern approaches in probiotics research to control foodborne pathogens. Adv Food Nutr Res. 67:185-239.

Koo OK, Amalaradjou MAR, Bhunia AK. (2012) Recombinant Probiotic Expressing Listeria Adhesion Protein Attenuates Listeria monocytogenes Virulence In Vitro. PLoS ONE 7(1): e29277 (equal contribution from all authors)

Jagadeesan B, Fleishman Littlejohn AE, Amalaradjou MAR, Singh AK, Mishra KK, La D, Kihara D, Bhunia AK. 2011. N-terminal Gly224–Gly411 Domain in Listeria Adhesion Protein Interacts with Host Receptor Hsp60. PLoS ONE 6(6):e20694.

Kollanoor-Johny A, Mattson T, Baskaran SA, Amalaradjou MAR, Hoagland TA, Darre MJ, Khan MI, Schreiber DT, Donoghue AM, Donoghue DJ, Venkitanarayanan K. 2012. Caprylic acid reduces Salmonella Enteritidis populations in various segments of digestive tract and internal organs of 3- and 6-week-old broiler chickens, therapeutically. Poult Sci. 91(7):1686-94.

Upadhyay A, Johny AK, Amalaradjou MAR, Ananda Baskaran S, Kim KS, Venkitanarayanan K. 2012. Plant-derived antimicrobials reduce Listeria monocytogenes virulence factors in vitro, and down-regulate expression of virulence genes. Int J Food Microbiol. 157(1):88-94.

Kollanoor-Johny A, Mattson T, Ananda Baskaran S, Amalaradjou MA, Babapoor S, March B, Valipe S, Darre M, Hoagland T, Schreiber D, Khan M, Donoghue A, Donoghue D, Venkitanarayanan K. 2012. Effect of Plant-Derived Compounds, Trans-Cinnamaldehyde and Eugenol in Reducing Salmonella Enteritidis Colonization in 20-Day-Old Broiler Chickens. Appl Environ Microbiol. 78(8):2981-7.

Amalaradjou MAR, Venkitanarayanan K. 2011. Proteomic analysis of the mode of antibacterial action of trans-cinnamaldehyde against Cronobacter sakazakii 415. Foodborne Pathog Dis. 8(10):1095-102.

Amalaradjou MAR, Narayanan A, Venkitanarayanan K. 2011. Trans-cinnamaldehyde decreases attachment and invasion of uropathogenic Escherichia coli in urinary tract epithelial cells by modulating virulence gene expression. J Urol. 185(4):1526-31.

Amalaradjou MAR, Venkitanarayanan K. 2011. Effect of trans-Cinnamaldehyde on Inhibition and Inactivation of Cronobacter sakazakii Biofilm on Abiotic Surfaces. J Food Prot. 74(2):200-8.

Mattson TE, Johny AE, Amalaradjou MAR, More K, Schreiber DT, Patel J, Venkitanarayanan K. 2011. Inactivation of Salmonella spp. on tomatoes by plant molecules. Int J Food Microbiol. 144(3):464-8.

Amalaradjou MAR, Venkitanarayanan K. 2011. Effect of trans-cinnamaldehyde on reducing resistance to environmental stresses in Cronobacter sakazakii. Foodborne Pathog Dis. 8(3):403-9.

Ananda Baskaran S, Amalaradjou MAR, Hoagland T, Venkitanarayanan K. 2010. Inactivation of E. coli O157:H7 in apple juice and cider by trans-cinnamaldehyde. Int. J. Food Microbiol. 141(1-2):126-9.

Amalaradjou MAR, Narayanan A, Ananda Baskaran S, Venkitanarayanan K. 2010. Antibiofilm effect of trans-cinnamaldehyde on Uropathogenic Escherichia coli. J. Urol. 184(1):358-63.

Amalaradjou MAR, Ramanathan R, Ananda Bhaskaran S, Charles AS, Johny AK, Valipe SR, Mattson T, Schreiber D, Juneja VK, Mancini R, Venkitanarayanan K. 2009. Enhancing the thermal destruction of Escherichia coli O157:H7 in ground beef patties by trans-cinnamaldehyde. Food Microbiol., 27(6):841-4.

Amalaradjou MAR, Norris C, Venkitanarayanan K. 2009. Effect of Octenidine hydrochloride on planktonic cells and biofilm of Listeria monocytogenes. 2009. Appl. Environ. Microbiol. 75(12): 4089-4092.

Amalaradjou MAR, Hoagland T, Venkitanarayanan K. 2009. Inactivation of Enterobacter sakazakii in reconstituted infant formula by trans-cinnamaldehyde. Int. J Food Microbiol. 129(2): 146-149.

Johny AK, Ananda Bhaskaran S, Charles AS, Amalaradjou MAR, Darre MJ,. Khan MI, Hoagland TA, Schreiber DT, Donoghue A, Donoghue D, Venkitanarayanan K. 2008. Prophylactic supplementation of caprylic acid in feed reduces Salmonella Enteritidis colonization in commercial broiler chicks. J. Food Prot. 72(4): 722-727.

Book Chapters

Amalaradjou MAR, Venkitanarayanan K. Microbiological Hazards Associated with Infant Formula. In: Infant Formula: Nutrition Content, Sources of Contamination. Nova Science Publishers. 2014

Amalaradjou MAR, Venkitanarayanan K. 2012. Role of bacterial biofilms in catheter associated urinary tract infections and strategies for their control. In: Recent advances in the field of urinary tract infections. Ed. Thomas Nelius. INTECH, 2013 .

Amalaradjou MAR and Kumar Venkitanarayanan. Natural approaches for controlling urinary tract infections. In: Urinary Tract Infections. Book 2. Ed. Peter Tenke. INTECH. 2011

Amalaradjou MAR and Kumar Venkitanarayanan. Detection of Penicillium, Aspergillus and Alternaria. In: Mycotoxins in fruits and vegetables. Ed. Rivka Barkai-Golan, Nachman Paster. Academic Press, 2008

Book Chapters
Nair, M. S., Amalaradjou, M. A., Venkitanarayanan, K. (2017). Antivirulence properties of probiotics in combating microbial pathogenesis. In S. Sariaslani & G. M. Gadd (Eds.)., Advances in Applied Microbiology, vol 98, (pp. 1-30). Cambridge, MA: Elsevier.

Nair M, Upadhyaya I, Amalaradjou MAR, Venkitanarayanan, K. 2017. Antimicrobial food preservatives and additives: mode of action and microbial resistance mechanisms. In: Foodborne Pathogens and Antibiotic resistance. Elsevier.

Amalaradjou MAR, Upadhyaya I, Venkitanarayanan K. 2017. Microbiological applications in the food industry. In: Microbial Applications. De Gruyter.

Amalaradjou MAR, Venkitanarayanan K. 2014. Microbiological Hazards Associated with Infant Formula. In: Advances in Medicine and Biology, 77(1-20). Nova Science Publishers.

Amalaradjou MAR, Venkitanarayanan K. 2013. Role of bacterial biofilms in catheter associated urinary tract infections and strategies for their control. In: Recent advances in the field of urinary tract infections. Ed. Thomas Nelius. INTECH. 2014.

Hobbies/ Non-Academic Interests

  • Reading
  • Music
  • Travel

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