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∙ 10y ago
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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.
Is egg albumin positive to millon test?
yes
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.
What tripeptide will give a positive xanthoproteic test?
No, because phenylalanine does not react with the nitric acid in this 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.
Why does albumin and pepsin test positive for protein?
Albumin and pepsin are both proteins, the test for proteins was positive.
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.
Is egg albumin positive to millon test?
yes
Why albumin gives positive Molisch test?
Because it is a carbohydrates and molisch test will be positive in the presence of carbohydrates
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.
Result for Heller's test positive reaction?
Heller's test is used to clinically detect the presence of albumin (protein) in urine.
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.
How does Xanthoproteic test differ from heller ring test?
Xanthoproteic test: a reaction due to the prescence of phenyl group (-C6H5) in the protein molecules. it involves the hnitration of the phenyl rings presnt in the aromatic amino acids such as tyrosine, phenylalanine, and tryptophan, forming yellow nitro-substitution products that turn orange when alkali is added (salt formation) Heller's ring test: this is usd clinically to detect the prescence of albumin in urine. so.... that's basically it... i hope i helped... ^^
What tripeptide will give a positive xanthoproteic test?
No, because phenylalanine does not react with the nitric acid in this test.
