Abstract
Tamarind ( Tamarindus indica L.) fruit grows wild in some parts of the savannah region of Nigeria. The fruit is grossly underutilised in Nigeria, despite its invaluable contribution to the food security and economy of some Asian countries. The amino acid composition of tamarind pulp was determined using amino acid analyser. Tamarind pulp was found to contain both essential and non-essential amino acids. Tamarind pulp could supply 53.8 %, 52.8 %, and 87.6 % of total essential, total sulphur and total aromatic amino acids respectively (FAO/WHO/UNU standard).
Highlights
Besides the structural function in proteins, aromatic amino acids are precursors of many important biological compounds essential for normal functioning of the human organism
The significance of tyrosine and its metabolites in physiology and pathology Besides the structural function in proteins, aromatic amino acids are precursors of many important biological compounds, such as neurotransmitters and hormones, in the human organism. Catecholic amines, such as dopamine, norepinephrine, and epinephrine are synthesized from tyrosine (Tyr)
Dopamine is produced in chromaffin cells of the adrenal medulla where it is later converted first to norepinephrine by dopamine β-hydroxylase (EC 1.14.17.1; DBH), to epinephrine by phenylalanine-N-methyltransferase (EC 2.1.1.28; PNMT)
Summary
Besides the structural function in proteins, aromatic amino acids are precursors of many important biological compounds essential for normal functioning of the human organism. The significance of tyrosine and its metabolites in physiology and pathology Besides the structural function in proteins, aromatic amino acids are precursors of many important biological compounds, such as neurotransmitters and hormones, in the human organism. In patients with CRI, oxidation stress occurs very often and results in the occurrence of oxidized tyrosine forms (chlorotyrosine and nitrotyrosine) in blood (Kopple, 2007).
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