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what are the 3 preservatives as described by the FDA Correct Answer-chemical preservative food additive antimicrobial chemical preservative Correct Answer-any chemical that when added to food, tends to prevent or retard detroriation does not inlclude salts, vinegars, and oil extracts food additive Correct Answer-all substances.. the intended use of which results or may reasonably be expected to result, directly or indirectly, either in their becoming a component of food or ot...

warmer conditions Correct Answer-When does chance of infection go up for disease? incubation period Correct Answer-time between exposure to disease agent and point of which symptoms appear 3-4 days Correct Answer-incubation period for EHEC infectious- can cause diarrhea, bloody diarrhea, HUS, TTP (severe cases) Correct Answer-EHEC diseases 9-12 cells Correct Answer-What is the infectious dose for EHEC? non-intact fresh beef, fresh produce, dairy products Correct Answer-What is the...

3 species of sporeformers that cause food borne illness Correct Answer-c. botulinum c. perfrigens b. cereus spore Correct Answer-metabolically inactive, doesnt consume sugar process of germination vegetative cell Correct Answer-metabolically active, produce and released spores alicylobacillus Correct Answer-thermophilic aciduric spore-forming bacteria that survive hot fill processes and cause spoilage and injuries amphilbacillus Correct Answer-facultative anaerobically xylan-degr...

microbiology Correct Answer-artificial sub discipline of biology based on size food microbiology Correct Answer-studies microbes that grow in food Louis Pasteur Correct Answer-1850 demonstrated that microbes complete lactic and ethanol fermentation early food preservation methods Correct Answer-probably accidental, sun dried/salted/frozen Fermented food became a thing around Correct Answer-4000 BCE Robert Koch Correct Answer-Koch's postulate is about establishing a causal relatio...

a nutrient that must be included in the diet in order to meet the animals' needs Correct Answer-essential the animal can synthesize this type of nutrient on their own, but the raw materials needed for synthesis in the body may need to be provided in the diet Correct Answer-nonessential metabolic demand drives ____ Correct Answer-intake true or false: for micro minerals, premixes apply Correct Answer-true true or false: for macro minerals, premixes apply Correct Answer-false fat f...

Which of the four phases of a microbial population's growth and development would be the best for optimally preserving food quality, shelf life, and protecting food safety? Correct Answer-exponential? In the image below depicting the onset of sublethal injury in a population of a microorganism, which line (solid or dotted) correctly depicts the actual population of living/viable microorganisms during processing exposure and thereafter? Each line depicts the changes in counts of a microorgani...

"The association of nonpolar groups or compounds with each other in aqueous systems, driven by the tendency of the surrounding water molecules to seek their most stable (disordered) state" is an example of: Correct Answer-*Hydrophobic interaction Which of the following is true about the chemical bonds found in proteins and nucleic acids? Correct Answer-*Atoms having a small difference between their electronegativities are more likely to form covalent bonds. The maximum number of bonds th...

Exposure to 63℃ for 30 minutes or 72℃ for 15 seconds are recognized ways to ________. Correct Answer-pasteurize You observe that you can kill 1 × 106 C. botulinum endospores in 3.0 minutes by heat treatment at 121℃. What is the decimal reduction time (D121 value)? Correct Answer-30 sec Which of the following types of microbes would be most resistant to killing by germicides? Correct Answer-bacterial endospores The use-dilution test and Kelsey-Sykes capacity test are methods desig...

What signs and symptoms may be seen in a cytomegalovirus infection? Correct Answer-Fever, hepatosplenomegaly, mental and/or developmental retardation, and death What is the causative agent of infectious mononucleosis? Correct Answer-Epstein-Barr virus What kind of pathogen is Rickettsia rickettsii? Correct Answer-Bacterium Infectious endocarditis is generally treated with which antibiotic? Correct Answer-Penicillin Rocky Mountain fever is treated using which antibiotics? Correct Answ...

Developed Small Pox immunization A. Leeuwenhoeck B. Pasteur c. Snow D. Jenner E. Redi F. Flemming G. Ehrlich H. Lister I. Kock J. Semmelweiss Correct Answer-D Sought Magic Bullet A. Leeuwenhoeck B. Pasteur c. Snow D. Jenner E. Redi F. Flemming G. Ehrlich H. Lister I. Kock