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Indicator of Food Poisoning


The Indicator of food poisoning is a group of organisms used to investigated the ... for disease control and included such foods as beef, turkey, and Mexican foods. ... – PowerPoint PPT presentation

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Title: Indicator of Food Poisoning

Indicator of Food Poisoning
Present by Ms.Pattana V. Ms.Sarawan K.

- The Indicator of food poisoning is a group of
organisms used to investigated the poisoning in
food product.
  • Genus Clostridium The endospores of species of
    this genus of anaerobic to microaerophilic
    bacteria usually swell the end or middle of the
    rods in which they are formed. All species are

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Clostridium botulinum
  • Anaerobic
  • Gram-positive spore-forming rod that produces a
    potent neurotoxin
  • Seven type (A,B,C,D,E,F and G)
  • - Type A,B,E,F and G cause human botulism.
  • - Type C and D cause most causes of botulism in

  • Foodborne botulism is a severe type of food
    poisoning caused by the ingestion of foods
    containing the potent neurotoxin formed during
    growth of the organism.
  • Can be destroyed if heated at 80 ?c for 10
    minutes or longer.
  • Their spores occur in forest soils, bottom
    sediments of streams, lakes and in their
    intestinal tract of fish and mammals,etc.

  • -Most of the 10 to30 outbreaks that are reported
    annually in the united states are associated with
    inadequately processed, home canned foods.
  • Example sausages, meat products, canned
    vegetables and seafood products.

Three type of botulism are recognized
  • 1. Foodborne botulism caused by the consumption
    of foods containing the neurotoxin produced by
    Clostridium botulinum
  • 2. Infant botulism affects infants under 12
    months of age, cause by the ingestion of
    Clostridium botulinum spores that produce toxin
    in the intestinal tract of infants
  • 3. Wound botulismthis illness result when
    Clostridium botulinum infects and reach other
    parts of the body via the blood stream.

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Symptoms in foodborne botulism
  • Usually 18 to 36 hours after ingestion of food
    containing the toxin.
  • - Difficulty in breathing.
  • - Weakness of other muscles.
  • - Abdominal distention.
  • - Constipation.

Foods -canned corn -pepers -green
beans -soups -beets -salted fish
-asparagus mushrooms -ripe olives -spinach -tuna
-chicken -meats -ham -sausage -lobster -smoked
Clostridium perfringens
  • Anaerobic
  • Gram- positive spore forming rod
  • It is widely distributed in the environment and
    occurs in the intestines of humans and many
    domestic and fetal animals.
  • Spores of the organism persist in soil sediments,
    and areas subject to human or animal fecal

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  • The common form of perfringens poisoning is
    characterized by intense abdominal cramps and
    diarrhea which begin 8-22 hours after consumption
    of foods containing large numbers of those
    C. perfringens bacteria capable of producing
    the food poisoning toxin.

  • Necrotic enteritis (pig-bel) caused by C.
    perfringens is often fatal.This disease also
    begins as a result of ingesting large number of
    the causative bacteria in contaminated foods.
  • Deaths from necrotic enteritis (pig-bel syndrome)
    are cause by infection and necrosis of the
    intestines and from resulting septicemia.

Associated foods
  • In most instances, the actual cause of poisoning
    by C. perfringer is temperature abuse of prepared
  • small numbers of the organisms are often present
    after cooking and multiply to food poisoning
    levels during cool down and storage of prepared
  • Meats, meat products,and gravy are the foods most
    frequently implicated.

The frequency of disease
  • Perfringers poisoning is one of the most commonly
    reported foodborne illness in the U.S.
  • There were 1,162 cases in 1821 in 28 separate
    outbreaks. At lest 10-20 outbreaks have past 2
    decades. Typically dozens or even hundred's of
    person are affected

Bacillus cereus
  • Gram-positive
  • Facultatively aerobic sporeformer
  • Cells are large rod and spores do not swell

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  • The symptoms of B. cereus diarrhea type food
    poisoning mimic those of Clotridium perfringens
    food poisoning. The onset of watery diarrhea,
    abdominal cramps, and pain occurs 6-15 hours
    after consumption of contaminated food
  • The emetic type of food poisoning is
    characterized by nausea and vomiting within 0.5
    to 6 hours after consumption of contaminate food.

Diagnosis of Human Illness
  • Confirmation of B. cereus as the etiologic agent
    in a foodborne outbreak requires either
  • 1. Isolation of strains of the same serotype from
    the suspect food and feces or vomitus of the
  • 2. Isolation of large numbers of a B. cereus
    serotype known to cause foodborne illness from
    the suspect food or from the feces or vomitus of
    the patient
  • 3. Isolation of B. cereus suspect foods and
    determining their enterotoxigenicity by
    serological (diarrhea toxic) or biological
    (diarrheal an demetic) test

Associated Foods
  • A wide variety of foods including meats, milk,
    vegetables, and fish have been associated with
    the diarrheal type food poisoning.
  • The vomiting type outbreaks have generally been
    associated with rice products however ,other
    starchy foods such as potato, pasta and cheese
    products have also been implicated
  • Food mixture such as sauces, puddings, soups,
    casseroles, pastries, and salads have frequently
    been incriminated in food poisoning outbreaks

Frequency of disease
  • In 1980, 9 outbreaks were reported to the centers
    for disease control and included such foods as
    beef, turkey, and Mexican foods.
  • In 1981, 8 outbreaks were reported which
    primarily involved rice and shellfish

Thank you