The Maillard reaction in an ancient linen cloth can yield a "stochastic-like effect" image

Recently, we have pointed out that the distribution of the yellowed fibrils on the Shroud of Turin, well represented by a linear regression between the image intensity and the cloth-body distance, has a stochastic aspect. In this paper, by a preliminary approach, we show that the chemical reaction between reducing sugar coming from the linen manufacturing procedure (mainly composed of crude starch and possibly also Saponaria officinalis) and some specific post-mortem gases like ammonia and/or diamines that could have been released by the corpse who was enveloped in the Shroud can yield a "stochastic-like effect" image. Moreover, we think the above reaction could also explain why the body image on the Shroud is a unicum.