To test for proteins, Biuret solution is added to a food sample; a color change from blue to purple or pink-purple indicates the presence of proteins.
Para probar la presencia de proteínas, se añade solución de Biuret a una muestra de alimento; un cambio de color de azul a púrpura o rosa púrpura indica la presencia de proteínas.
| Original | [[oc1::1) Prepare a sample of your food and transfer 2cm3 to a test tube]] [[oc2::2) Add 2cm3 of biuret solution to the sample and mix the contents of the tube by gently shaking it]] [[oc3::3) If the food sample contains protein, the solution will change from blue to purple or pink purple]] |
|---|---|
| Title | Testing for Proteins |
| Settings | 1,1,0 | n,n,n,n |
| Text1 | 1) Prepare a sample of your food and transfer 2cm3 to a test tube ... ... |
| Text2 | 1) Prepare a sample of your food and transfer 2cm3 to a test tube 2) Add 2cm3 of biuret solution to the sample and mix the contents of the tube by gently shaking it ... |
| Text3 | ... 2) Add 2cm3 of biuret solution to the sample and mix the contents of the tube by gently shaking it 3) If the food sample contains protein, the solution will change from blue to purple or pink purple |
| Full | 1) Prepare a sample of your food and transfer 2cm3 to a test tube 2) Add 2cm3 of biuret solution to the sample and mix the contents of the tube by gently shaking it 3) If the food sample contains protein, the solution will change from blue to purple or pink purple |
Tags: b2, bio, food-tests
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