Abstract #73

# 73
Interventions for reduction of spore-forming bacteria at the farm level.
A. Bianchini*1, 1University of Nebraska-Lincoln, Lincoln, NE.

Bacillus and Paenibacillus spp. are spore-forming bacteria with the ability to survive the pasteurization process due to their spore structure. These bacteria can produce different enzymes that negatively affect the quality of dairy products, reducing the shelf life of fluid milk and limiting the market for powdered milk. Therefore, the control of sporeformers is crucial to improve the quality of fluid products and to reach specific international powder markets thus benefiting the US dairy industry. In this presentation, I will present an overview of sporeformers associated with the supply chain (fluid, condensed milk, and dry powder) along with potential interventions that may be applied at the farm level to control these microorganisms. It has been previously reported that effective cleaning of teats, changes in bedding material, and CIP procedures could be potential interventions to decrease sporeformers in milk. Additionally, the type of sanitizers (i.e., iodine or chlorine based) used in the parlor could have an effect in this microbial population. These potential interventions have been the subject of research at the University of Nebraska–Lincoln (UNL), with some of the interventions showing to be successful in improving the quality of raw milk. This presentation will provide a brief overview of spore research done at UNL in the last 5 years, along with results obtained so far from interventions at farm level to reduce spore-forming bacteria in raw fluid milk.



Speaker Bio
Dr. Andréia Bianchini is an Associate Professor at the Department of Food Science and Technology at the University of Nebraska – Lincoln, working closely with their Food Processing Center. She has a B.S. degree in Food Engineering and a M.S. degree in Environmental and Agricultural Microbiology, both from Brazil. Her Ph.D. degree is in Food Science and Technology from UNL and her research area of interest is processing for food quality, safety and security. Recently she has focused on improving the quality of dairy products and the safety of grain based products throughout their production and processing chains. Her research and extension activities have international reach, spanning several continents. She has 27 peer review publications and has contributed 8 book chapters to several reference and textbooks.