Pm. Zavlin et al., CHANGE IN THE MOLECULAR-WEIGHT DISTRIBUTION OF GELATIN DURING TANNING, Russian journal of applied chemistry, 66(3), 1993, pp. 588-590
High-performance liquid gel-permeation chromatography revealed changes
in the molecular weight distribution of gelatin during tanning. The t
anning of acid gelatin having a high content of alpha-fraction fragmen
ts proceeds with greater difficulty than the structurization of basic
bone gelatin with a content of alpha-chain fragments not exceeding 5%.