Biuret Test, Benedict Test and Indophenol Test
More Lessons for Biology
Videos and experiments that are suitable for Biology. Biuret test to test for proteins. Benedict Test for Reducing Sugars and Non-Reducing Sugars and Indophenol Test for Vitamin C.
Demonstration of the biuret test for proteins.
A purple color is a positive result to show that protein is present.
Benedict Test for Reducing Sugars
Test detecting the presence of glucose (a reducing sugar). An orange/brick-red color is a positive result to show that glucose is present.
Benedict Test for Non-Reducing Sugars
The acid is used to breakdown the sucrose (a non-reducing sugar) into glucose (a reducing sugar) and you add the sodium hydroxide to neutralise the acid.
Indophenol Test for Vitamin C
Indophenol is an indicator that turns colorless in the presence of vitamin C. The fewer drops of juice you need for the color change, the higher the vitamin C content in the juice
Rotate to landscape screen format on a mobile phone or small tablet to use the Mathway widget, a free math problem solver that answers your questions with step-by-step explanations.
You can use the free Mathway calculator and problem solver below to practice Algebra or other math topics. Try the given examples, or type in your own problem and check your answer with the step-by-step explanations.