What is the independent variable? What is the dependent variable? Suggest a control for this experiment? What is the optimal temperature range for Listeria monocyogenes? Is monocyogenes a psychrophile, psychrophile, mesophile, or thermophile? What the optimal pH range for Lactobacillus plantarum? Is plantarum an acidophile, neutraphile, or alkalophile? What is the toxin produced by coli O157:H7 that was encode by phage as a consequence of lysogenic conversion? Explain the medical importance. Which bacterial culture (Lb. plantarum, P. acidilactici, or P. pentosaceus) was most effective against monocytogenes and Salmonella? Explain why. What are the limitations of using an agar disk diffusion assay to assess the effectiveness of an antiseptic, disinfectant, or, in this case, a biological control agent on the growth of bacteria of interest? LAB produce organic acids that have shown to be effective against controlling the growth of foodborne pathogens. What specific organic acid is produced by LAB during fermentation? What is the logical next step to validate the efficacy of the biological control agent?

Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
Section: Chapter Questions
Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...
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  1. What is the independent variable?
  2. What is the dependent variable?
  3. Suggest a control for this experiment?
  4. What is the optimal temperature range for Listeria monocyogenes? Is monocyogenes a psychrophile, psychrophile, mesophile, or thermophile?
  5. What the optimal pH range for Lactobacillus plantarum? Is plantarum an acidophile, neutraphile, or alkalophile?
  6. What is the toxin produced by coli O157:H7 that was encode by phage as a consequence of lysogenic conversion? Explain the medical importance.
  7. Which bacterial culture (Lb. plantarum, P. acidilactici, or P. pentosaceus) was most effective against monocytogenes and Salmonella? Explain why.
  8. What are the limitations of using an agar disk diffusion assay to assess the effectiveness of an antiseptic, disinfectant, or, in this case, a biological control agent on the growth of bacteria of interest?
  9. LAB produce organic acids that have shown to be effective against controlling the growth of foodborne pathogens. What specific organic acid is produced by LAB during fermentation?
  10. What is the logical next step to validate the efficacy of the biological control agent?
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