muscle foods safety presented by: dana j. hanson, ph.d. ncsu extension meat specialist
TRANSCRIPT
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Muscle Foods Safety
Presented by:
Dana J. Hanson, Ph.D.NCSU Extension Meat Specialist
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Foodborne DiseaseAnnual Case Estimates
76 Million Cases Annually - United States
Campylobacter 2,435,926
Salmonella 1,412,498
Clostridium perfringens 248,520
Staphylococcus aureus 185,060
Yersinia enterocolitica 96,368
Escherichia coli O157:H7 73,480
Listeria monocytogenes 2,518
Clostridium botulinum 58
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Foodborne DiseaseAnnual Cost Estimates
$8.4 Billion
Salmonella $2,853,400,000
Listeria monocytogenes $2,333,200,000
Staphylococcus aureus $1,500,000,000
Campylobacter $1,215,300,000
Escherichia coli O157:H7 $329,700,000
Clostridium perfringens $123,000,000
Clostridium botulinum $87,000,000
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Sources of contamination
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Sources of contamination
Feed &Equipment
InsectsDomestic Animals
Rodents
Wild Birds
Soil Air
Water
Humans
Wild Animals
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Location of Bacteria on a Live Animal
SurfaceHairHide/SkinFeet
Gastrointestinal tract
* Muscle tissue - “essentially sterile”
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Bacteria on Carcass
• Skin scalded/dehair or remove
• Clean surface
• Freshly inoculated with bacteria
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Contamination During Cutting
Sterile Interior
Knife
Exterior bacteria
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Contamination During Cutting
Sterile Interior
Knife
Exterior bacteria
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Contamination During Grinding
Ground Meat
Contamination throughout
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Salmonella spp.
• Salmonellosis
• Illness usually occurs 6 to 72, usually 12-36 hours after ingestion of contaminated foods
• It is estimated that 2 to 4 million cases occur annually in the U.S.
• Acute symptoms– Nausea– Vomiting– Abdominal cramps– Diarrhea– Fever
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Listeria monocytogenes
• Listeriosis• Onset ranges from a few days to 3 weeks• There are at least 1600 cases of listeriosis
with 415 deaths per year in the U.S.• Symptoms (preceded by flu-like symptoms)
– Septicemia– Meningitis– Encephalitis– Spontaneous abortion or stillbirth– Intrauterine or cervical infections (pregnant women)
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Yersinia enterocolitica
• Yersiniosis• Illness usually occurs 24 to 48 hours after ingestion of
contaminated food• Approximately 17,000 cases occur annually in the U.S.• Symptoms:
– Gastroenteritis
– Diarrhea and/or vomiting
– Fever and abdominal pain
are hallmark symptoms
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Campylobacter jejuni/coli• Campylobacteriosis
• It is estimated that 2-4 million cases occur every year in the U.S.
• Illness usually occurs 2 to 7 days after ingestion of contaminated food
• Symptoms– Diarrhea
– Fever
– Abdominal pain
– Nausea
– Headache
– Muscle pain
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Staphylococcus aureus• Intoxication by consumption of heat
stable, preformed toxin in food• Symptoms
– vomiting (“projectile”)
– nausea
– abdominal cramps
– and diarrhea 1-6 hours after eating food contaminated with toxin
– “Two-bucket disease”
• Bacteria killed by mild heat. Toxins are very heat stable.
• Will grow with or without air; toxin not usually produced in acid food; bacteria are resistant to high salt (up to 15%)
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Clostridium perfringens
• Perfringens food poisoning• Toxin production in the digestive tract during sporulation
following ingestion of vegetative cells in food.• Heat resistant spore• Spores survive normal cooking procedures, including boiling• Grows well without oxygen• Optimum temperature for growth is 110-120oF• Symptoms occur 6-24 hours and is generally
self-limiting (24 hrs) :– intense abdominal cramps
– diarrhea (“explosive”)
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Prevention of Foodborne Disease
Salmonella
Campylobacter
Escherichia coli O157:H7
Yersinia enterocolitica
Listeria monocytogenes
Clostridium perfringens
Staphylococcus aureus enterotoxin
*Reduction in levels of contamination
*May reduce risk
*No guarantee of absence
Extreme care in slaughter and processing - Strict sanitation
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Prevention of Foodborne Disease
Salmonella
Campylobacter
Escherichia coli O157:H7
Yersinia enterocolitica
Listeria monocytogenes
Clostridium perfringens
Staphylococcus aureus enterotoxin
*Elimination of heat-sensitive organisms
*Cross contamination must be controlled
Sufficient heating during cooking step
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Prevention of Foodborne Disease
Salmonella
Campylobacter
Escherichia coli O157:H7
Yersinia enterocolitica
Listeria monocytogenes
Clostridium perfringens
Staphylococcus aureus enterotoxin
*Prevents growth to high numbers
*Prevent toxin production
Proper handling and storage (cooling)
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Most Common Problem Areas
Undercooking
Cross-contamination
Temperature Abuse
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Most Common Problem Areas
Undercooking
• Human pathogens may be part of the natural flora of the live animal
• If raw products of animal origin are not properly cooked, held, cooled, and stored, they can cause foodborne illness.
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Most Common Problem Areas
Cross-contamination
• General sanitation» equipment, utensils, and
surfaces» raw foods» environment
• Personal hygiene
• Pest Control
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Most Common Problem Areas
Temperature abuse
• Cold storage» Smaller, flat containers» 32-40oF» environment
• Hot holding
» 130oF or above
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Hazard Analysis Critical Control Point (HACCP)
Approach
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Origin of HACCP -Food for the Space
Program-• Concept was Developed in 1959
– Dr. Howard Bauman
• Pillsbury, under contract from NASA– 1st Concern: Food crumbs in zero
gravity– 2nd Concern: Microbiological safety
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HACCPA systematic approach to the identification,
evaluation, and control of food safety hazards.
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Pathogen Reduction; HACCP Final Rule
• All plants must adopt and follow, written Standard Operating Procedures for Sanitation (SSOP’s)
• As of January 25, 2000 all Federally Inspected Meat Processing facilities must have adopted HACCP (a system of process controls to prevent food safety hazards)
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Total Mgmt Commitment
Cleaning& Sanitation
Personnel Hygiene
Pest Control
Bio,chem,phys hazards
HACCPEducation & Training
Temperature Control
…….support programs provide a good foundation for HACCP to be built on……….without a good foundation it is like building a skyscraper in a swamp…….
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HACCP Support Programs
• Pre-requisite programs• Good Manufacturing Practices (GMP’s)• Standard Operating Procedures (SOP’s)• Sanitation Standard Operating
Procedures (SSOP’s)
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Sanitation Standard Operating Procedures (SSOP’s)
9 CFR Part 416—Sanitation• Grounds and Facilities
– Grounds and Pest Control– Construction– Walls, Floors, Ceilings, Doors and Windows – Rooms and Compartments (processing,
handling and storage)– Lighting– Ventilation– Plumbing– Sewage Disposal– Water/Ice Supply– Dressing Rooms
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SSOP’s
9 CFR Part 416—Sanitation (cont.)
• Equipment and Utensils
• Sanitary Operations
• Employee Hygiene
• Tagging Insanitary Equipment, Utensils, Rooms or Compartments
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Corrective Action for SSOP’s
• Prevent Adulterated Product From Entering Commerce
• Ensure Facility and Equipment Sanitation is Restored
• Establish Procedures to Prevent Recurrence
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Product Movement• Move inedible product away from edible
product
• Avoid floor splash
• Avoid working on the floor
• Minimize contact with equipment and building
• Assure carcass spacing in coolers and monitor
• Minimize opportunities for pathogens to be transferred from one area of the plant or one stage of production to another area of the plant or another stage of production
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7 Principles of HACCP
1. Conduct a Hazard Analysis
2. Identify Critical Control Points
3. Establish Critical Limit
4. Establish Monitoring Procedures
5. Establish Corrective Action Procedures
6. Verification
7. Record Keeping
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HACCP Principle #1
Conduct a Hazard Analysis
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HACCP Principle #2
Identify Critical Control Points
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Critical Control Point (CCP)
Critical Control Point• Any step in the process at which
biological, chemical, or physical factors can be controlled.
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HACCP Principle #3
Establish Critical Limits
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Critical Limits
• Critical Limit A maximum and/or minimum value to which hazards must be controlled at a CCP… To prevent, eliminate or reduce to an acceptable level, the occurrence of a food safety hazard
• Deviation Failure to meet a critical limit
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HACCP Principle #4
Establish Monitoring Procedures and Frequency
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Purpose of Monitoring
• Allows Management to Follow HACCP Operation
• Determine loss of control if and when it occurs
• Provides written documentation for verification--proves that you did what you said you were going to do
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HACCP Principle #5
Corrective Action
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Corrective Action• Identify and Eliminate the Source of the
Deviation
• Ensure CCP is Under Control Following Corrective Action
• Establish Procedures to Prevent Recurrence
• Prevent Adulterated Product From Entering Commerce
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HACCP Principle #6
Establish Verification Procedures
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Verification
…..on-going activities designed to ensure that the HACCP plans is being implemented properly (e.g. compliance checks and audits).
• Verification of Prerequisite programs• periodic (annual) review of written procedures and quality
systems)
• Records of monitoring records
• Evaluation of day--to-day activities at each CCP• Calibration of instrumentation;review of records;
independent check of monitoring activity
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Performance StandardsRAW carcasses and ground:• Salmonella spp. - carcasses, some ground
product
• generic Escherichia coli - carcasses
• E. coli O157:H7 - in raw beef
RTE products and environment:• Listeria monocytogenes, Salmonella spp.
and E.coli O157:H7 (patties) - zero tolerance RTE
• Environmental testing for Listeria spp. in order to verify SSOP’s
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HACCP Principle #7
Record Keeping
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Recordkeeping
……if you didn’t write it down……..it didn’t happen!!!• temperature monitoring records - cook; chill;
room; product; water…..etc.• cook charts• thermometer calibration records• oven prove calibration records• pH meter records• oven validation records• metal detector • corrective actions• ………………..
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