Meat processing - By-products, Preservation, Safety

meat processing

Table of Contents

Introduction
Conversion of muscle to meat
- Muscle structure and function
  - Skeletal muscle structure
  - Skeletal muscle contraction
- Postmortem muscle
  - pH changes
  - Protein changes
Properties of meat
- Chemistry and nutrient composition
  - Protein
  - Fat
  - Vitamins and minerals
  - Cholesterol
  - Carbohydrates
  - Water
- Colour
  - Myoglobin content
  - Oxidation state of iron
- Tenderness
  - Meat grain
  - Connective tissue
  - Fat
- Postmortem quality problems
  - DFD meat
  - PSE meat
  - Cold shortening
  - Heat ring
Livestock slaughter procedures
- Preslaughter handling
- Stunning
- Slaughtering
  - Hogs
  - Cattle, calves, and sheep
- By-products
Meat inspection
- Antemortem and postmortem inspection
- Reinspection during processing
- Sanitation
- Facilities and equipment
- Labels and standards
- Compliance
- Pathology and epidemiology
- Residue monitoring and evaluation
Meat grading
Retail meat cutting
- Pork fabrication
- Beef fabrication
- Lamb fabrication
- Veal fabrication
Meat cookery
- Colour changes
- Structural changes
Meat microbiology, safety, and storage
- Food-borne microorganisms
  - Food-spoilage microorganisms
  - Food-poisoning microorganisms
  - Prevention of microbial contamination
- Preservation and storage
  - Cold storage
  - Freezing
  - Vacuum packaging
  - Canning
  - Drying
  - Fermentation
  - Irradiation
  - Curing and smoking

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By-products are the nonmeat materials collected during the slaughter process, commonly called offal. Variety meats include livers, brains, hearts, sweetbreads (thymus and pancreas), fries (testicles), kidneys, oxtails, tripe (stomach of cattle), and tongue. Bones and rendered meat are used as bone and meat meal in animal feeds and fertilizers. Gelatin, obtained from high-collagen products such as pork snouts, pork skin, and dried rendered bone, is used in confections, jellies, and pharmaceuticals. Intestines are used as sausage casings. Hormones and other pharmaceutical products such as insulin, heparin, and cortisone are obtained from various glands and tissues. Edible fats are used as ...(100 of 6858 words)

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