Proteins - Chemical reactions of amino acids and of proteins
3 important questions on Proteins - Chemical reactions of amino acids and of proteins
Which parts of the amino acid can react?
1: alpha-carboxylic acid group + alpha-amino group
2: functional group in the side chain
What happens when an amino acid reacts with a dicarbonyl compound?
Both a transamination and decarboxylation take place in the Strecker degradation. In this reaction the amino acid is converted into an aldehyde.
Due to the reactions that take place in proteins at elevated temperatures the biological values and the techno/functional properties may decrease. How could the biological value be decreased?
The biological value could be decreased due to:
* Degradation of essential amino acids
* Conversion of " " " into derivatives which are not metabolizable
* Decrease in digestibility of protein due to intra-/interchain cross linking
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