Chapter 7 The Control of Microbial Growth
Chapter 7 The Control of Microbial Growth
Chapter 7 The Control of Microbial Growth
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Surface Acting Ingredients / Surfactants<br />
• Soaps and Detergents<br />
• Major purpose <strong>of</strong> soap: Mechanical removal and use as<br />
wetting agent<br />
• Definition <strong>of</strong> detergents<br />
‣ Acidic-Anionic detergents Anion reacts with plasma<br />
membrane. Nontoxic, non-corrosive, and fast acting.<br />
Laundry soap, dairy industry.<br />
‣ Cationic detergents Quarternary ammonium<br />
compounds (Quats). Strongly bactericidal against against<br />
wide range, but esp. Gram+ bacteria<br />
Soap<br />
Acid-anionic detergents<br />
Quarternary ammonium compounds<br />
(cationic detergents)<br />
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Degerming<br />
Sanitizing<br />
Strongly bactericidal, denature<br />
proteins, disrupt plasma membrane
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