Sterile filtration Flashcards
What are 2 disadvantages of tunnel pasteurization?
High capital cost
Large footprint
Maintenance costs
What are some advantages of sterile filtration?
Improved clarity
No heating
Easy to use/disposable cartridges
Effective spoilage organism removal
What is the purpose of depth filtration in sterile filtration?
Take advantage of mechanical straining through depth and electro kinetic adsorption
What are some methods of integrity testing membrane filters?
Bubble point
Diffusion flow
Pressure hold
What absolute pore size is required for sterile beer filtration?
0.45
What are some sources of micro contamination around a bottle filler?
Filler heads
Hopper
Closures and conveyors
People
Atmosphere
Filler bowl
Plumbing
Containers
What substances will cause membrane filters to plug?
Beta glucans
What are some measures that can be used to extend sterile filter life?
Cleaning
Reduce face velocity
Increase surface area
