Unit 3801: Dairy Plant Technology and Processing

1. Introduction to Dairy Plant Technology

• Overview of the dairy industry
  • Global and local dairy markets
  • Economic importance
• Role of dairy plant technology in milk processing
  • Technological advancements
  • Process optimization
• Importance of quality control and safety measures
  • Food safety standards
  • Consumer health and confidence

2. Milk Composition and Properties

• Chemical composition of milk
  • Proteins (casein, whey proteins)
  • Fats (types, significance)
  • Carbohydrates (lactose)
  • Vitamins and minerals
• Physical properties of milk
  • pH, density, freezing point
  • Thermal properties
• Role of components in dairy product characteristics

3. Dairy Processing Equipment

• Pasteurizers
  • Types (batch, continuous)
  • Function and operation
• Homogenizers
  • Purpose and mechanism
• Separators
  • Cream separation
  • Skimming process
• Packaging machines
  • Types (bottling, carton filling)
  • Sterile packaging methods

4. Milk Processing Steps

• Receiving and testing raw milk
  • Quality parameters (temperature, microbial load)
  • Sampling and analysis
• Pasteurization
  • Time-temperature combinations
  • Objectives and effects
• Homogenization
  • Process details
  • Benefits
• Cooling
  • Rapid chilling techniques
• Packaging
  • Materials and methods
• Storage
  • Conditions and shelf-life considerations

5. Quality Control in Dairy Production

• Importance of quality control
  • Ensuring safety and consistency
  • Regulatory compliance
• Testing methods
  • Microbiological tests
  • Chemical analysis
  • Sensory evaluation
• Regulatory standards
  • National and international standards (e.g., Codex, FDA, EU regulations)

6. Dairy Product Development

• Innovation in dairy products
  • Flavored milks
  • Yogurts
  • Cheeses
  • Ice creams
• Consumer demand and market trends
• Formulation and processing considerations

7. Waste Management in Dairy Plants

• Types of waste and by-products
  • Solid, liquid, gaseous wastes
• Wastewater treatment
  • Biological and chemical treatment methods
• Sustainable practices
  • Waste reduction strategies
  • Recycling and reuse

8. Cleaning and Sanitization Practices

• Importance of cleaning and sanitization
  • Preventing contamination
  • Maintaining equipment efficiency
• Cleaning procedures
  • Cleaning-in-place (CIP)
  • Cleaning-out-of-place (COP)
• Sanitizers and disinfectants
  • Types and application

9. Dairy Plant Automation and Control Systems

• Role of automation
  • Process control and monitoring
• Control systems used
  • PLCs, SCADA systems
• Benefits
  • Enhanced productivity
  • Consistent product quality

10. Dairy Plant Hygiene and Food Safety

• Hygiene practices
  • Personal hygiene
  • Facility hygiene
• Personal protective equipment (PPE)
• HACCP principles
  • Hazard analysis
  • Critical control points
• Food safety regulations
  • Compliance and audits