1 / 8

Got Milk?

By Jocelyn Alverio Kamara Clanders Fredrick Cherry Lamiya Robinson. Got Milk?. Question:. Does spoiled or fresh milk have the most bacteria?. Materials:. 1.Cup of spoiled milk. 2.Cup of fresh milk. 3.BTB 4.4 cups. 5.Measuring cups. Research. -milk is healthy.

michelle-dillard
Download Presentation

Got Milk?

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. By Jocelyn Alverio Kamara Clanders Fredrick Cherry Lamiya Robinson Got Milk?

  2. Question: Does spoiled or fresh milk have the most bacteria?

  3. Materials: 1.Cup of spoiled milk. 2.Cup of fresh milk. 3.BTB 4.4 cups. 5.Measuring cups.

  4. Research -milk is healthy -bacteria multiplies by 2. Bacteria grows in the food in the fridge. Lactic acid which when in its concentration is just right (0.9%) causes milk to cur die and taste sour---deliciously tasty to some. • Spoiled milk=>general term for milk that has acquired a tart taste either through addition of an acid such as lemon juice pr vinegar or thru bacterial fermentation. • Acid causes milk to coagulate and form a thicker consistency. • Fresh milk is sour –spoiled- by these bacteria's’ then these bacteria’s are considered to be “harmful” spoilage agents.

  5. Hypothesis Fredrick and kamara: Jocelyn AND LAMIYA: We believe spoiled milk will have the most bacteria because it’s old and chunky. It is nasty and stinky. I believe the fresh milk has to much liquid to have more bacteria. • We believe spoiled milk will have more bacteria because of it’s condition, it’s old and because bacteria will have grown overtime than fresh milk has.

  6. Procedure: 1.Pour spoiled milk into 2 different cups and label a and c. 2.Pour fresh milk into 2 different cups and label b and d. 3.Pour BTB in test tubes a and b. 4.Pour BTB in test tubes c and d. 5.Let sit for at least 5 minutes. 6.Observe and record what is seen.

  7. Data: The real yellow was cups spoiled A, spoiled C before and after BTB. fresh cups B and d were pure white before and after BTB.

  8. Conclusion: In conclusion the project was tested wrong. All of our hypothesis were incorrect. The fresh milk had more bacteria and even changed a more yellow bright color. The spoiled milk absorbed the BTB and stayed the same color. We learned that next time we should try and get both fresh and spoiled milk around the same time and keep refrigerated in same place for same amount of time.

More Related