Leite materno contains antimicrobiano componentes that fight bacteria. The protective properties of breastmilk have been well established.1
When breastmilk is heat-treated, bacteria are generally destroyed even if the different methods of heat treating affect the milk differently.2 3
It can be important to know that some bacteria form esporos quando exposto ao calor. Bacillus cereus é uma bactéria formadora de esporos e é conhecida por causar cerca de 2% do total de casos de intoxicação alimentar. É amplamente encontrado na natureza (solo, plantações, agua).4
Bacillus food poisoning usually occurs because heat-resistant endospores survive cooking or pasteurização and then germinate and multiply when the food is inadequately refrigerated.5 While Bacillus cereus bacterium is easily controlled by proper handling,6 this bacterium is not reduced by heat-treating. B. Cereus can be of special concern to sick and premature babies7 because of their compromised immune systems.
Milk banks screen for this and other bacteria before and after pasteurization. Casa triagem of bacteria is technically possible, but expensive and/or elaborate. Proper handling is important in avoiding contamination by bacteria.
When donating to a premature baby, special considerations may need to be taken into account. Por favor, veja E os bebês prematuros? for more information and consult with a specialized healthcare provider when planning on donating to a premature baby.
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- Por que o leite materno? ↩︎
- Como o leite materno pode ser pasteurizado em casa? ↩︎
- Aquecimento por flash ↩︎
- Todar’s Online Textbook of Bacteriology. Bacillus cereus Food Poisoning ↩︎
- New Zealand Food Safety Authority – Bacillus cereus
↩︎ - Ecolab – What is Bacillus cereus? ↩︎
- Nicholaus J. Hilliard, e outros. 2003. Bacillus cereus Bacteremia in a Preterm Neonate ↩︎
