Food Microbiology and Microorganism Classification

Food Microbiology Overview

• Focuses on the spoilage and processing of food.
• Concerns microorganisms that can cause diseases through food consumption, such as in food particles or milk.
• Microorganisms present in the environment and community can affect food safety.

Microorganism Classification

• Microorganisms can be classified as either prokaryotic or eukaryotic.
• Prokaryotic Microorganisms
  • Defined by the absence of a nuclear membrane.
  • Example: Bacteria.
  • Generally smaller and simpler in structure.
• Eukaryotic Microorganisms
  • Have a well-defined nucleus enclosed by a nuclear membrane.
  • Example: Yeasts and molds.
  • More complex with various organelles.

Functions of Microorganisms

• Can produce antibiotics and enzymes that are useful in various applications.
• Important for diagnosing diseases and treatment processes, such as wastewater treatment.

History of Microbiology

• The term "microbiology" was coined by a French chemist focused on reducing microbial contamination.
• Example in daily life: Cooked food (e.g., chana or chow mein) left out for too long can become spoiled due to microbial growth, illustrating the concept of food safety and proper food storage.
• Emphasizes the importance of maintaining food at the right temperature and pressure to prevent spoilage and the growth of microorganisms.