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Microorganisms, Food Safety & HACCP

Microorganisms, Food Safety & HACCP. Microorganisms (microbes) are viruses, bacteria and fungi They are too small to be seen with the naked eye, but can be seen with a microscope They are single celled organisms. What is a Microorganism?. Image Credit: USDA Photo by: Scott Bauer.

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Microorganisms, Food Safety & HACCP

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  1. Microorganisms, Food Safety & HACCP

  2. Microorganisms (microbes) are viruses, bacteria and fungi They are too small to be seen with the naked eye, but can be seen with a microscope They are single celled organisms What is a Microorganism? Image Credit: USDA Photo by: Scott Bauer

  3. Where Do Microbes Live? • Microbes live in the water you drink, the food you eat, and the air you breathe. • Right now, billions of microbes are swimming in your belly and mouth, and crawling on your skin!

  4. 95% of all microbes are harmless Some are very beneficial to humans Bacteria in people’s intestines help to digest food Some harmless microbes protect people by competing with harmful microbes for space Are Microbes Harmful? Image Credit: www.microorganisms.com

  5. They multiply QUICKLY! Scientists often use scientific notation to express their large numbers How do Microbes Multiply?

  6. Some Common Harmful Bacteria in Food

  7. Salmonella & E.Coli 0157:H7 Salmonella E.Coli 0157:H7 Image Credit: EHA Consulting Group Inc.

  8. Seven astronauts (each with their own microbes) will be living in small, air-tight space for months or years Harmful microbes can spread and make the crew sick Aspects of spaceflight are known to weaken the human immune system Certain microbes can attack the materials and hardware of the Station Why are Space Scientists Concerned about Microbes? Image Credit: USDA

  9. What is NASA Doing to Eliminate Harmful Microbes in Space? • Testing each crewmate for infection before launch • Only healthy crew members are allowed to fly in space

  10. Air, water and surfaces with which crew members interact must be kept clean All air in the space station will pass through filters-High Efficiency Particle Air (HEPA) filters Water will be disinfected by a machine called a Catalytic Oxidator What About the Water and Air?

  11. Protecting Space Station Materials • Some harmful microbes can thrive on the Space Station • Eventually, they could eat away at the Space Station material Image Credit: NASA

  12. Protection of the Space Station Materials • Humidity of the air will be kept low • Astronauts will clean materials • Paint with a fungus-killing chemical will be used Image Credit: NASA

  13. How can we control microbial growth here on Earth?

  14. NASA Spin-offs • Dozens of NASA Spin-offs have improved our lives here on Earth • In order to prevent bacterial contamination in space, NASA hired Pillsbury to develop a preventative food safety program • Pillsbury developed the Hazard Analysis and Critical Control Point (HACCP) program

  15. HACCP • HACCP is designed to prevent food safety problems rather than catch then after they occur • It includes seven principles • It was adopted by the FDA in the1990’s

  16. HACCP’s Seven Principles for Food Safety • Analyze Hazards • Identify Critical Control Points

  17. Principles 3 & 4 • Establish Critical Limits for each Critical Control Point • Establish Monitoring Procedures

  18. Establish Corrective Actions Establish Verification Activities Establish Records and Documentation Principles 5, 6 & 7

  19. What are some ways your could implement HACCP Principles in your home kitchen?

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