0
Millon's solution detects phenolic compounds, which includes proteins and some non-proteins. Phenolic compounds are classified as having a hydroxyl group, or an OH, bonded directly to a hydrocarbon.
Wiki User
∙ 9y ago
Add your answer:
Earn +20 pts
What color is a positive test for protein?
A positive test, when using Biuret reagent, would be purple-ish
How IMViC tests differentiate Escherichia coli from Enterobacter aerogenes?
Indol Test ( Kovac's Reagent): E.a. = negative = yellow/gold ring at meniscus; as for E.c. = positive = red ring at meniscus (immediate change). Methyl Red Test (Methyl Red Reagent): E.a. = negative = yellow = pH > 7.0; as for E.c. = red color = pH < 5 (immediate change). Vogues-Proskauer Test (Napthol + KOH Reagent): E.a. = positive = reddish color (not immediate change); as for E.c. = negative = brown/yellow (straw color). Citrate (Bromothymol Blue Reagent - alkaline pH): E.a. = positive = blue color + growth; as for E.c. = negative = green color.
What color is million's reagent?
blue
What reagent is used to test for starch?
The reagent that is used to test for starch is a mixture of iodine and potassium iodide in water, or an Iodine - KI reagent. If the reagent turns blue-black in color, then starch is present.
A student adds iodine solution to egg white and waits for a color change How long will the student have to wait for a change?
A student adds iodine solution to egg white and waits for a color change. How long will the student wait?
What is the colour change in Protein when the Bluret test is performed?
When being tested with biuret reagent, protein turns a blue to lilac color. However, starches when tested do change to a blackish blue color.
Using benedict's reagent what method is used to find protein?
If the color is blue, it means that protein is present, if it turns orange, protein is not present.
What color is a positive test for protein?
A positive test, when using Biuret reagent, would be purple-ish
How IMViC tests differentiate Escherichia coli from Enterobacter aerogenes?
Indol Test ( Kovac's Reagent): E.a. = negative = yellow/gold ring at meniscus; as for E.c. = positive = red ring at meniscus (immediate change). Methyl Red Test (Methyl Red Reagent): E.a. = negative = yellow = pH > 7.0; as for E.c. = red color = pH < 5 (immediate change). Vogues-Proskauer Test (Napthol + KOH Reagent): E.a. = positive = reddish color (not immediate change); as for E.c. = negative = brown/yellow (straw color). Citrate (Bromothymol Blue Reagent - alkaline pH): E.a. = positive = blue color + growth; as for E.c. = negative = green color.
What color is million's reagent?
blue
What color is Benedict's reagent originally?
blue
What is the mordant reagent for?
to fix the color of the stain
What is the difference between Benedict's Reagent and Biuret Reagent?
Benedicts reagent is used to check reducing sugars , it need hat to work and gives red color when positive ,. While biuret reagent is for proteins .there is no need to use heat and gives purple , violet color when positive ..
What reagent is used to test for starch?
The reagent that is used to test for starch is a mixture of iodine and potassium iodide in water, or an Iodine - KI reagent. If the reagent turns blue-black in color, then starch is present.
What color does distilled water turn with Benedict's reagent?
The water turns a pale blue. In other words stating that it doesnt contain protein
What will you observe when the isolated beta amylase enzyme is subjected to biuret test?
When the isolated beta amylase enzyme is subjected to the biuret test, you will observe a color change from yellow to blue. This is because the biuret reagent reacts with the peptide bonds in the enzyme, causing a change in color.
What color is a postitive protein test?
The colour would change to a purple, dark purple colour.
