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The Effect of Different Fat Contents in Milk on Bacterial Growth

The Effect of Different Fat Contents in Milk on Bacterial Growth. Nathania Elisa BIO 130. Introduction. Factors influencing bacterial growth. Milk is vulnerable to bacterial contamination, bacteria feed up on lactose. Lactose and fat are made up of same components.

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The Effect of Different Fat Contents in Milk on Bacterial Growth

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  1. The Effect of Different Fat Contents in Milk on Bacterial Growth Nathania Elisa BIO 130

  2. Introduction • Factors influencing bacterial growth. • Milk is vulnerable to bacterial contamination, bacteria feed up on lactose. • Lactose and fat are made up of same components. • Question: Will different fat contents in milk have a significant effect on bacterial growth rate?

  3. Materials and Methods

  4. Materials and Methods

  5. Results

  6. Discussion • Chi-square calculation for all samples, (degree of freedom = 3), no significant difference. • Chi-square calculation for two extreme samples (Non-fat milk and whole milk), with degree of freedom=1, there is significant difference. • The presence of fat enhances bacterial growth. • Bacterial growth is directly proportional to fat content in milk.

  7. Milk After 4 Days

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