Chapter 26 Microbial Growth Control Physical Antimicrobial Control Clicker Question:
Clicker Question: Physical Antimicrobial Control Clicker Question: Clicker Question:
Thermal Death Curve: Mesophilic Bacterium Clicker Question:
Thermal Death Curve: Mesophilic Bacterium Clicker Question: Thermal Death Curve: Mesophilic Bacterium
Clicker Question: Thermal Death Curve: Mesophilic Bacterium
Clicker Question: Decimal Reduction Time vs Temperature Clicker Question:
Pasteurization Times and Temperatures: Pasteurs original: half hour at 63oC-66oC as a Batch. Originally designed to prevent spoilage of wine.
Later applied to milk to prevent Mycobacterium bovis transmission of TB. Milk current standard based on killing Listeria monocytogenes, Campylobacter sps, Salmonella Escherichia coli O157:H7, Coxiella burnetti.
HEAT EXCHANGER: 72oC for 15 sec. Clicker Question: and
HTST Pasteurization Continuous Counter Current Flow Clicker Question: Countercurrent Heat
Exchanger Small Heat Exchanger Small Heat
Exchange r Heat Exchanger Diagram
Ultrapasteurization Heat Exchanger : heats milk to 138oC for 3 sec (2 to 4 sec). Ultrapasteruized milk is supposed to last 6 months at room temperature without spoilage.
Milk is packaged in plasticized cardboard containers. Theres a Story Here. The Autoclave
and water ! Ultra Violet Lights Are ON The mesh work
at the back holds behind it a HEPA Filter so that sterile air moves
outward as a laminar flow. Clicker Question:
Radiation Kills Just Like Heat 1 Gray (Gy) = 100 rads 1 rad = 100 ergs/g
Decimal Reduction Doses of Ionizing Radiation
Check out the D10 for humans Clicker Question: It Works Beautifully with Food
Filtration Depth Filters
Membrane Filters Nucleopore Filters. Bacteria stuck on
2. Impermeability. 3. Enzyme that alters structure of antibiotic. 4. Makes modification of antibiotic target. 5. Develops a resistant, alternate pathway. 6. Efflux Pump.
The Classics ! Epidemiological Patterns of
Antibiotic Resistance Appearance of Drug Resistance
Resistance to Vancomycin over come by converting the carbonyl to a
methyl. Computer Aided Drug Design Other Antimicrobial Strategies
Natural Products searches for fit into prokaryotic essential enzymes from databases of plant or other organisms secondary products. This is how Platensimycin was discovered by a screen of 250,000 known bio-products.
Drug Combinations Augmentin is a combo drug containing amoxicillin and the -lactamase inhibitor Clavulanic acid. See next slide. Textbook Combo: Sulbactam and Ampicillin
The motor regulator 2) The cerebellum Motor control systems outside the cortex Cerebellum -controls neural 'programs' for the executionl of skilled movements The Location of the Cerebellum: Midsagittal View Atlas Fig. 2-30 Atlas Fig.2-37 Atlas Fig.2-20 The Pons and Medulla...
Fossil Fuels. Fossil fuels are energy-rich substances formed from the remains of organisms. Coal, Oil, and natural gas. Fossil fuels are made of hydrocarbons - chains of hydrogen and carbon. Combustion of fossil fuels provides more energy per kg than...
1) The actual quantity of controlled substances lost in relation to the type of business;2) The specific controlled substances lost;3) Whether the loss of the controlled substances can be associated with access to those controlled substances by specific individuals, or...
Composite service on GSB for "Building License" inquiry by National ID or License number, this composite service redirects requests and collects replies from the different municipalities and allow permitted agencies to inquire about building license(s) by using either national ID,...
Welcome! Develop a robust, data driven plan for the 2018/2019 school year. Have a better understanding of to use data on a regular basis. Understand the different tactics for and difference between tiers one and two.
To Kill a Mockingbird Background Notes (Nelle) Harper Lee, born in Monroeville, Alabama in 1926, has only this one novel to her credit, but it has been enough to earn her a Pulitzer Prize and a wide audience. ... Three...