Gelatin and Yellowing

​Hello, Everyone,

I was interested in finding out whether or not gelatin in an aqueous solution (in and of itself) painted onto linen would cause yellowing over time or would it stabilize the linen?  My understanding with photographs that have gelatin on them that it is not, necessarily, the gelatin that causes the yellowing but the combination of the gelatin with the other chemicals.  

Also, would it be possible for this gelatin solution on linen (that is binding pigment) to “disappear” over time but cause the linen to dehydrate and darken –and where there is no remaining evidence of the liquid cementation between the interstices of the linen threads to evidence that gelatin had been there?  

Any help with this would be greatly appreciated!

Thank you,

​Teddi