pyridoxal
Noun
Meaning
a B vitamin that is essential for metabolism of amino acids and starch
Source: WordNetSynonyms
Hypernyms
Phrases with the word
Examples
8-Amino-7-oxopelargonic acid synthase is a pyridoxal 5'-phosphate enzyme.
They utilise the cofactor PLP ( pyridoxal phosphate ), which functions by stabilising carbanion intermediates.
Other products of vitamin B 6 metabolism excreted in the urine when high doses of the vitamin have been given include pyridoxal, pyridoxamine, and pyridoxine and their phosphates.
Plant foods lose the least during processing, as they contain mostly pyridoxine, which is far more stable than the pyridoxal or pyridoxamine found in animal foods.
The trapped pyridoxine and pyridoxamine are oxidized to pyridoxal phosphate in the tissue.
Those products and nonphosphorylated forms in the digestive tract are absorbed by diffusion, which is driven by trapping of the vitamin as 5′-phosphates through the action of phosphorylation (by a pyridoxal kinase) in the jejunal mucosa.