Theses and Dissertations

Issuing Body

Mississippi State University

Advisor

Sharma, Chander Shekhar

Committee Member

Kiess, Aaron S.

Committee Member

Nannapaneni, Ramakrishna

Date of Degree

5-9-2015

Document Type

Graduate Thesis - Open Access

Major

Poultry Science

Degree Name

Master of Science (M.S.)

College

College of Agriculture and Life Sciences

Department

Department of Poultry Science

Abstract

Antimicrobial efficacy of recently approved lytic bacteriophage preparation Salmofresh™ against Salmonella was evaluated on chicken breast fillets as dip and surface application, which reduced Salmonella by 0.7-0.9 log CFU/g and 0.8-1 log CFU/g, respectively. Surface application of Salmofresh™ on Salmonella inoculated chicken breast followed by storage under modified atmosphere packaging (95% CO2/ 5% O2) reduced Salmonella by 1.2 log CFU/g. The combined application of Salmofresh™ with cetylpyridinium chloride (CPC) and lauric arginate (LAE) reduced Salmonella on chicken breast fillets by 1.2-1.4 log CFU/g and 0.9-1 log CFU/g, respectively. The sequential application of chemical antimicrobial (CPC, LAE, chlorine and peracetic acid) and Salmofresh™ in reducing Salmonella was tested in a chicken skin model. Dip treatment in peracetic acid (400ppm) followed by surface application of phage revealed the highest reduction of Salmonella up to 2.5 log CFU/cm2 on chicken skin.

URI

https://hdl.handle.net/11668/17908

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