Is white tripe, the type you can buy in the shops for human consumption, of any nutritional value to a dog?

Probably best avoided, white tripe for humans is bleached to get it white. May not even be the same part of the cow as green tripe - cows have 4 stomachs!

White tripe isn't a problem for dogs, but not as nutritious as green tripe as it was cleaned and most of the nutrition taken away with that.

> cows have 4 stomachs!

Yes but they are all the same & are tripe

not that there is much of a nutritional value in tripe the only nutritional value taken away from white tripe would be the goodness there is in grass 

you may find this an interesting read http://www.truecarnivores.com/greentripe.shtml

my loves tripe, i feed him raw green tripe a couple of times a week,  the white tripe has everything stripped from it, not sure what purpose it serves, even for my gran!!