Tomato Seed Saving Question

[VGary]

I am in the last stages of my Tomato Seed Saving. On several femented tomatoes , I have noticed what looks like the seed may have tried germinating; there is a thread like attachment to the seed. I know the gell surrounding the seed inhibits germination if it falls to the ground. Does the fermentation process also inhibit germination? I have never noticed this in any of my seed saving before. In fact, I have on several occassions forgotten I had containers still fermenting and salvaged those with no problems; they were just a little darker in appearance.
I plan to test them by germinating them later when they are dry and I am finished with my seed saving.
Your imput would be most appreciated!
Gary/Louisville