Unit 2239: Comprehensive Meat Science and Industry

1. Introduction to Meat Science

1.1 Definition and Scope of Meat Science

1.2 Composition of Meat

• Water, protein, fat, carbohydrates, minerals
• Muscle structure and connective tissue

1.3 Types of Meat

• Red meat (beef, lamb, pork)
• Poultry
• Game meat
• Processed meat products

1.4 Meat Quality Parameters

• Color
• Texture
• Flavor
• Juiciness
• Tenderness

1.5 Importance of Meat in Human Nutrition

• Nutritional benefits
• Role in diet and health

2. Meat Animal Production

2.1 Livestock Breeds and Their Characteristics

• Cattle, sheep, pigs, poultry breeds
• Genetic traits influencing meat quality

2.2 Feeding Practices

• Types of feed and nutrition
• Impact on growth and meat composition

2.3 Animal Welfare Considerations

• Ethical treatment
• Housing and handling
• Stress effects on meat quality

2.4 Genetics and Meat Quality

• Heritability of traits
• Breeding programs and selection

3. Meat Processing and Preservation

3.1 Meat Processing Methods

• Slaughtering and initial processing
• Cutting and deboning
• Grinding and mixing

3.2 Preservation Techniques

• Curing (salting, nitrates/nitrites)
• Smoking
• Freezing and chilling
• Packaging methods (vacuum, modified atmosphere)

3.3 Role of Additives and Technologies

• Preservatives
• Antioxidants
• Use of enzymes and tenderizers
• Emerging technologies (high pressure, irradiation)

4. Meat Quality Evaluation

4.1 Factors Affecting Meat Quality

• Pre-slaughter factors
• Post-slaughter handling
• Aging and storage

4.2 Instrumental Evaluation Techniques

• Color measurement (colorimetry)
• Texture analysis
• Water holding capacity

4.3 Sensory Evaluation

• Descriptive analysis
• Consumer preference testing
• Training of sensory panels

5. Meat Safety and Regulations

5.1 Foodborne Pathogens and Hazards

• Common pathogens (Salmonella, E. coli, Listeria)
• Contamination sources

5.2 HACCP Principles

• Hazard analysis
• Critical control points
• Monitoring and verification

5.3 Regulatory Frameworks

• National and international standards
• Labeling requirements and traceability
• Inspection and compliance

6. Meat Cooking Methods

6.1 Overview of Cooking Principles

• Heat transfer
• Effects on meat structure

6.2 Common Cooking Techniques

• Grilling and broiling
• Roasting
• Braising and stewing
• Sous vide cooking

6.3 Impact of Cooking on Meat Quality

• Changes in tenderness, flavor, and juiciness
• Maillard reaction and flavor development

7. Meat Industry Trends

7.1 Alternative Meat Products

• Plant-based meats
• Cultured meat
• Hybrid products

7.2 Sustainable Meat Production Practices

• Environmental impact reduction
• Resource efficiency

7.3 Organic and Grass-Fed Meats

• Certification standards
• Nutritional and quality differences

7.4 Consumer Preferences and Ethical Sourcing

• Animal welfare concerns
• Transparency and labeling
• Market demands