Shroud of Turin FAQ

. . . the wikipedia text, carbohydrate layer summarizes this possible explanation very well. However, it is incorrect to call it a carbohydrate layer explanation. The layer refers to a fact about the chemical nature of the cloth and not a process. The proposed process is generally referred as a Maillard reaction or amino/carbonyl reaction.

It is important to note that some crude imaging has been achieved using this method.

 

microscopic view of the carbohydrate residue. The image layer appears redish is this photograph
 

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