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55 Cards in this Set

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Deals with ensuring that food products are safe for consumption. Food are free from biological, chemical, and physical hazards

Food safety

Unwanted or undesirable substances (naturally occurring or artificial) in foods that can lead to safety concerns

Food hazards

Main food safety concerns (hazards)

Microbiological, chemical, and physical

What is considered a biological hazard

Bacterial, viral, parasitic

What is considered a chemical hazard

Allergens, cleaning chemicals, drug residue

What are physical hazards

Foreign materials such as plastic or metal

Preformed toxin produces symptoms

Food intoxication

Activities of viable microorganisms in host produce symptoms

Food infection

Sources of microorganisms in foods

Naturally on raw products


Ingredients added


Processing equipment and facilities


Humans


Contact with contaminated water


Storage and transportation

Nausea, fever, vomiting, cramps, diarrhea


(8 -72 hr, more commonly 12-36 hr)


2-3 days duration


Sources are domestic and wild animals, human beings


Food implicated is meat products, chicken, milk, eggs, custard, chocolate, dairy based

Salmonella, infection

Diarrhea (bloody), fever, HUS, TTP


Duration 3-8 days


Sources are domestic and wild animals


Foods: undercooked ground beef, salami, lettuce, unpasteurized apple cider, raw milk

E. coli O157:H7, infection

Nausea, vomiting, headache, fever, chills, backache, meningitis (1 day to 3 weeks)


Duration varies (high fatality)


Sources: soil, water, mud, humans, animals


Foods: unpasteurized milk and cheese, leafy greens, cantaloupes, RTE meats, seafood

Listeria monocytogenes, infection

Intense ab pains and severe diarrhea


Duration: 24 hr


Sources: humans, animals, soil


Foods: meat and gravy dishes (improperly cooled foods)

C. Perfringens, infection

Nausea, vomiting, headache, blurred or double vision, paralysis of respiratory muscles


Duration: recovery can take months


Sources: soil, marine sediment, intestinal tract of animals


Foods: home-canned foods, baked goods, chopped garlic in oil, smoked fish, beef stew

Clostridium botulinum, intoxication

Nausea, vomiting, cramps, diarrhea. Dehydration


Duration: 1-2 hrs


Sources: humans, fluid transfer


Foods: meat salads, potato salad, custards, creams, dairy products


S. aureus, intoxication

Over 50% of foodborne illnesses in US


Reproduce only within a living cell


Only carried by foods and transmitted by poor hygeine

Viruses

Top risk factors for foodborne illness outbreaks

Improper holding temps


Improper cooking temps


Dirty and contaminated utensils and equip


Poor employee health or hygeine


Food from unsafe sources

Big 8 allergens

Peanuts. Tree nuts, milk, egg, soy, fish, crustaceans, wheat

Food safety program which moves emphasis from finished product testing and consumer complaints to identification of hazards as they might appear during production so appropriate measures can be implemented for prevention

HACCP

Developed around 1960 by Pillsbury in response to food safety requirements imposed by NASA for space exploration

HACCP

7 haccp guidlines

Conduct hazards analysis


Determine the critical control points (CCPs)


Establish critical limits


Establish monitoring procedures


Establish corrective action plans


Establish validation and verification procedures


Establish record keeping and documentation procedures

A bacteria that is not usually a food-borne pathogen


Cell walls contain peptidoglycan

Gram positive

Most food borne pathogens


Cell walls lack peptidoglycan

Gram negative

In microorganisms, it is the Primary means of producing ATP by thrlr degradation of organic nutrients anaerobically


Been used since 6600 BC

Fermentation

Fermentation with glucose to lactic acid

Homolactic

Fermentation with glucose to lactic acid and other stuff (other acids or gases)

Heterolactic

Fermentation with glucose to ethanol and CO2

Alcoholic (ethanol)

GMP

Good manufacturing practices

SOPs

Sanitation operating procedures

HACCP

Hazard analysis critcal control points

Study of living organisms that are too small to see with the naked eye

Microbiology

Microbes of interest to food industry

BACTERIA


YEASTS


MOLDS


Viruses


Parasites

Bacteria shapes

Cocci, bacillus, spirillum, others

Unicellular eukaryotes

Yeasts

Filamentous eukaryotes

Molds

Bacteria reproduction

Fission, can double every 20 minutes

Yeast reproduction

Budding, fission

Mold reproduction

Sexual spores: fusion


Asexual spores: fertile hyphae

Bacteria move with

Flagella

Mold movement

Doesnt move generally

SOIL

Foreign matter that happens to be in the wrong place

Process of removing SOIL and preventing accumulation of food residues which may support the growth of microorganisms

Cleaning

Process in which microorganisms are inactivated

Sanitization

Overall process of minimizing product contamination

Sanitation

Ways of using heat for preservation

Blanching, pasteurization, canning

Ways of using the cold for preservation

Refrigeration and freezing

Any microorganisms that cause diseases by foodborne infection, foodborne intoxication, toxicoinfection

Pathogens

Methods of heat transfer

Conduction, convection, radiation

Kills pathogens


Minimal product damage


Shorter shelf-life


Pasteurization, blanchinf

Mild heat treatment

Kill all bacteria


No other preservation needed


Overcooked food


Canning

Severe heat treatments

Indicates that the compound is capable of killing

Cidal

Indicates that the compound is capable of preventing growth

Static

Used primarily to impart desirable flavor for meat products

Wood smoke

Used mainly to facilitate the destructionof foodborne pathogens alone or with other means of preservation

Hydrogen peroxide

Prevent or inhibit the oxidation process

Antioxidants