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No, because phenylalanine does not react with the nitric acid in this test.
Wiki User
∙ 12y ago
Wiki User
∙ 12y agoAny tripeptide with a benzene ring will test positive.
Wiki User
∙ 12y agoYes. The xanthoprotein test is actually a nitration of benzene reaction. Any amino acid or protein containing an aromatic (benzene) ring will give a positive test.
Wiki User
∙ 11y agotryptophan and casein
Anonymous
Yes phenylalanine give positive result in xanthoprotine tst.
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Is albumin positive to xanthoproteic test?
no
Does human insulin give positive xanthoproteic test?
No because it doesn't contain aromatic group
What are the principles involved in xanthoproteic test?
The xanthoproteic test is a test for the detection of proteins. If proteins are present, concentrated nitric acid reacts with the proteins to form a yellow color that turns orange-yellow by the addition of alkali. This is called the xanthoproteic reaction.
Do albumin gives a positive xanthoproteic test?
I reckon the answer would be that phenol has a hydroxyl group (-OH) which is bonded to a phenyl ring. It yields the same positive result like tyrosine which has a hydroxyl group bonded to its phenyl ring.
What is observed when phenols are used in Baeyers test?
Phenols give a positive test.
Will adrenaline give a positive xanthoproteic test?
yes
Why phenylalanine give negative result with xanthoproteic test?
Phenylalanine gave a yellow to orange color in xanthoproteic test which means it is positive.
Is albumin positive to xanthoproteic test?
no
Does human insulin give positive xanthoproteic test?
No because it doesn't contain aromatic group
Why glysine give negative result in xanthoproteic test?
No because it doesn't contain aromatic group
What are the principles involved in xanthoproteic test?
The xanthoproteic test is a test for the detection of proteins. If proteins are present, concentrated nitric acid reacts with the proteins to form a yellow color that turns orange-yellow by the addition of alkali. This is called the xanthoproteic reaction.
What functional group gives a positive test in the xanthoproteic test?
The xanthproteic test gives a positive result when proteins with amino acids carrying aromatic groups are present. Aromatic groups are functional groups consisting of a 6 hydrocarbons with alternating double and single bonds between carbon atoms forming rings.
Do albumin gives a positive xanthoproteic test?
I reckon the answer would be that phenol has a hydroxyl group (-OH) which is bonded to a phenyl ring. It yields the same positive result like tyrosine which has a hydroxyl group bonded to its phenyl ring.
All amino acid having an aromatic ring give a positive xanthoproteic test under identical condition?
yes! but actually for phenylalanine it just weakly positive or negative because the aromatic ring is not activated so it is not give the positive result...phenylalanine need certain condition to give positive result
Which halogens give a positive beilstein test?
which halogens give a positive beilstein test?
Did gelatin give positive result with xanthoprotic test?
yes,it give positive test
What are the results when vasopressin is tested with xanthoproteic?
xanthoproteic test is used to detect the presence of aromatic amino acid in this nitration of an benzee ring with nitric acid takes place.
