Food Science Commons^™

Microemulsions Of Cinnamon And Orange Oils As An Antimicrobial Delivery System For Salmonella Biofilms On Stainless Steel, Jennifer Vuia-Riser

Doctoral Dissertations

Essential oils (EOs) are natural antimicrobials that can be used to develop intervention strategies to inhibit pathogens, but EOs are lipophilic. Colloidal systems, such as microemulsions, are needed for food industry applications. This dissertation focused on the development and characterization of a microemulsion composed of cinnamon oil (CO, Cinnamomum zeylanicum) and orange oil (OO, Citrus sinensis) to be used against Salmonella Enteritidis H4267 biofilms formed on stainless steel disc surfaces.

First, the antimicrobial activity of CO and OO against S. Enteritidis H4267, either used in combination or in a microemulsion system, was determined. CO had a greater antimicrobial …

A Natural Antimicrobial From Bacillus Subtilis As A Biosanitizer For Resilient Membrane Biofilms, Pratishtha Verma

Electronic Theses and Dissertations

The microbial attachment and colonization on separation membranes lead to biofilm formation. Some selective isolates within the biofilm constitutive microflora acquire resistance and emerge predominant over prolonged use of the membrane. Thus, proving the cleaning and sanitization protocols to be ineffective in adequately removing resilient biofilms. This subsequently leads to selecting microbial resistance within the constitutive microflora to almost all antimicrobial treatments and hence, creates a need to develop novel alternative strategies to control biofilm formation on membrane surfaces. The first research project under this study was designed to understand the microbial interactions and emergence of predominance within biofilm constitutive …