Food Safety and Security

Foodborne Illnesses - Gut Grievances

• Infection: Pathogen invades; longer IP.
• Intoxication: Pre-formed toxins; shorter IP.

  ⭐ Staphylococcal food poisoning: rapid onset (1-6 hrs), preformed heat-stable enterotoxin.

• Bacterial:
  • Salmonella: IP 6-72h, diarrhea. Poultry.
  • E.coli O157:H7: IP 3-4d, bloody diarrhea/HUS, Shiga toxin. Beef.
  • Shigella: IP 1-2d, dysentery. Contaminated.
  • Campylobacter: IP 2-5d, bloody diarrhea. Poultry.
  • Listeria: IP 1-21d, listeriosis. Deli meats.
  • Staph aureus: (See ⭐) Toxin. Meats.
  • C. perfringens: IP 8-16h, diarrhea, toxin. Meats.
  • C. botulinum: IP 12-72h, paralysis, Botulinum toxin. Canned.
  • B. cereus: Emetic (IP 0.5-6h, rice); Diarrheal (IP 6-15h, meats). Toxins.
• Viral:
  • Hepatitis A: IP 15-50d, jaundice. Contaminated.
  • Norovirus: IP 12-48h, N/V/D. Shellfish.
  • Rotavirus: IP 1-3d, diarrhea (kids). Contaminated.
• Parasitic:
  • Giardia: IP 1-2w, diarrhea. Water.
  • Entamoeba: IP 2-4w, dysentery. Contaminated.
  • Taenia: Variable IP, taeniasis. Raw meat.
  • Trichinella: IP 1-2d (gut), 2-8w (muscle), myalgia. Pork.

Food Adulteration & Laws - Purity Patrol

Food adulteration: Intentional addition/substitution of inferior substances or removal of vital elements, affecting food's nature, substance, or quality.

Common Adulterants & Effects:

Key Regulations:

• FSSAI (Food Safety and Standards Act, 2006): Apex body. Sets science-based standards; regulates manufacture, storage, distribution, sale, import.
• AGMARK: Certifies agricultural produce.
• ISI Mark (BIS): Certifies industrial product quality. BIS is India's National Standards Body.

Food Preservation & Hygiene - Spoilage Shield

• Principles: Asepsis, remove microbes, hinder growth (low temp, dry, chemicals), kill microbes (heat, radiation).
• Methods:
  • High Temp: Pasteurization (LTLT $63°C, \mathbf{30 min}$; HTST $\mathbf{72°C, 15 sec}$; UHT), Sterilization, Canning.
  • Low Temp: Refrigeration ($\mathbf{0-4°C}$), Freezing ($\mathbf{-18°C}$).
  • Dehydration: Drying. Osmotic: Salting, Sugaring.
  • Chemicals: Class I (natural), Class II (benzoates). Irradiation. Fermentation.
• Hygiene: Personal (handwashing), Environmental (sanitation, pest control).
• HACCP: 📌 How Can Clever Monkeys Cook Very Rarely? (7 principles: Hazard Analysis, CCPs, Critical Limits, Monitoring, Corrective Actions, Verification, Records).

⭐ Pasteurization kills most pathogens & spoilage organisms, not spores; it's not sterilization.

Food Security & Nutrition Programs - Nation's Nourishment

• Food Security: Ensured access for all people at all times to sufficient, safe, and nutritious food for an active and healthy life.
  • Pillars: Availability, Accessibility, Utilization, Stability.
• Food Fortification: Adding micronutrients to commonly consumed foods.
  • Types: Mass, targeted, market-driven.
  • Examples: Salt (Iodine), Oil/Milk (Vit A/D), Wheat (Iron/Folic acid).
• Key Programs:
  • ICDS: Targets children (0-6 yrs), pregnant & lactating women. Services: health, nutrition, pre-school education.

  ⭐ The Integrated Child Development Services (ICDS) scheme targets children 0-6 years, pregnant women, and lactating mothers, providing a package of six services.

  • MDM (Mid-Day Meal): School children. Norms: Primary $\mathbf{450 kcal}$, $\mathbf{12g}$ protein; Upper Primary $\mathbf{700 kcal}$, $\mathbf{20g}$ protein.
  • PDS (Public Distribution System): Subsidized food grains.
  • POSHAN Abhiyaan: Aims to reduce stunting, undernutrition, anemia.

High‑Yield Points - ⚡ Biggest Takeaways

• FSSA 2006 replaced PFA Act 1954; FSSAI is the apex regulatory body.
• HACCP is a critical system for food safety management.
• Key foodborne pathogens: Salmonella (typhoid), E. coli, Clostridium botulinum.
• Aflatoxins (mycotoxins) in improperly stored grains are linked to hepatocellular carcinoma.
• Lathyrism results from BOAA toxin in Lathyrus sativus (kesari dal).
• Food fortification (e.g., iodized salt, Vitamin A in oil) combats micronutrient deficiencies.
• Mid-Day Meal Scheme mandates food safety protocols for school children.