VB6 in plant foods is mainly ( ). A: Pyridoxine B: Pyridoxal C: Pyridoxamine D: Pyridoxine

Pyridoxal phosphate (PLP) participates in a variety of reactions at the α, β, and γ carbons (C-2 to C-4) of amino acids. Reactions at the α carbon include ___________________. A: acemization (interconverting L- and D-amino acids) B: decarboxylation C: transamination D: deamination