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What else can I help you with?
Why egg albumin and casein did not react ninhydrin reagent?
It should react to this reagent. However it must be HEATED before it will react.This is due to the fact that when Ninhydrin is heated it stabilizes and the reacts with the -NH2 groups on the amino acid.
Does ninhydrin has flaws?
Yes, ninhydrin has some drawbacks. It can react with other substances present in the sample, leading to false positive results. Additionally, the reaction with ninhydrin is not specific to a particular amino acid, which can limit its application in identifying specific amino acids.
Why proline amino acid gives yellow colour in reaction with ninhydrin?
Yes. Within "The Chemical Reactions of Amino Acids / Reactions of Amino Groups" there are several examples - one of which is the ninhydrin reaction. A very widely applied reaction of the alpha amino group [that is the N in the peptide bond -CCN-CCN-], it is used to estimate the quantity of amino acids [in a sample] in very small amounts. All amino acids and polypeptides with a free alpha group react with ninhydrin and yield [or produce] an intensely purple colored product - except for Proline and Hydroxyproline {both in which the alpha amino group is termed to be 'substituted' - something to do with carbon rings} which "yield derivatives with a characteristic yellow color." See also 'Schiff's bases'.
What is the word for something that doesnt react easily?
Resilient.
What metal doesnt react with acid or water?
Gold is a metal that does not react with most acids or water.
Why egg albumin and casein did not react ninhydrin reagent?
It should react to this reagent. However it must be HEATED before it will react.This is due to the fact that when Ninhydrin is heated it stabilizes and the reacts with the -NH2 groups on the amino acid.
Does ninhydrin has flaws?
Yes, ninhydrin has some drawbacks. It can react with other substances present in the sample, leading to false positive results. Additionally, the reaction with ninhydrin is not specific to a particular amino acid, which can limit its application in identifying specific amino acids.
Would the ninhydrin test be useful and reliable for showing the presence or the absence of proteins?
Yes, the ninhydrin test is useful for detecting the presence of proteins because it reacts with amino acids to produce a colored product. However, it may not be reliable for determining the absence of proteins due to possible interference from other substances that can also react with ninhydrin.
What questions have been raised about ninhydrin?
Ninhydrin is a chemical used to expose latent fingerprints, but its use is declining because of the slow reaction time it takes for it to react with the oil in the fingerprints. You can use heat to speed the process up but there are other faster options.
How does copper react in water?
It doesnt
What functional group must be present for the ninhydrin test to work?
Ninhydrin works because it reacts with the amino acids left behind in a latent print. Ninhydrin has a polar carbonyl carbon with is electron deficient. It is attacked by the nucleophilic nitrogren on an amino acid, temporarily combining the ninhydrin and amino acid molecule. The structure is rearranged until the origionally attacked carbon is protonated and leaves in the form of water. This creates a schiff base when the nitrogen is double bonded to the origionally attacked carbon. This molecule rearranges again so that the nitrogen is double bonded to the adjacent carbon of the amino acid. This last rearrangement produces carbon dioxide gas. Further rearrangement of the product produces ruheman's purple.
What substance is found in human skin that reacts with ninhydrin resulting to stain?
Amino acids, specifically the primary amine group found in proteins, react with ninhydrin to produce a purple-blue color. This reaction is commonly used to detect and visualize amino acids in biological samples such as human skin.
Why proline amino acid gives yellow colour in reaction with ninhydrin?
Yes. Within "The Chemical Reactions of Amino Acids / Reactions of Amino Groups" there are several examples - one of which is the ninhydrin reaction. A very widely applied reaction of the alpha amino group [that is the N in the peptide bond -CCN-CCN-], it is used to estimate the quantity of amino acids [in a sample] in very small amounts. All amino acids and polypeptides with a free alpha group react with ninhydrin and yield [or produce] an intensely purple colored product - except for Proline and Hydroxyproline {both in which the alpha amino group is termed to be 'substituted' - something to do with carbon rings} which "yield derivatives with a characteristic yellow color." See also 'Schiff's bases'.
How does soda react to heat?
no it doesnt blow up
What is the word for something that doesnt react easily?
Resilient.
What metal doesnt react with acid or water?
Gold is a metal that does not react with most acids or water.
What is the molecular formula of ninhydrin?
Well, the best I could come up with is it's either:C9H6O2orC4H3O2If someone knows any different please correct me.jman63: it is actually C9H6O4
