Research Article

Enthalpies of Combustion and Formation of Histidine Stereoisomers

Table 3

DSC data of isomeric histidines (10°C min−1).

Isomeric histidinesTon set (°C)Tmax (°C)Tend set (°C)H (kJ·mol−1)

L-histidine277.1282.1287.672.6 (melting-decomposition)
D-histidine272.8282.4290.370.2 (melting-decomposition)
DL-histidine274.2280.4286.675.4 (melting-decomposition)