William Bronson wrote: So proteins only, no carbs?
Are you making bread, meat subsitute,what?
I'm not sure about John, but I work on a better no-wheat vegan bread, and the ultimate, a stretchy gooey cheese that is non dairy. Nothing in this world stretches like dairy casein, that is what gives your dairy cheese melty goodness (mozzarella on your pizza). I could give up meat texture (the best convincing fakes usually build it with wheat gluten aka seitan), but that stretchy gooeyness is missing.
The best gluten free vegan meat faking is with a very firm tofu or mushrooms. I do a pretty good 'sloppy joe' mushroom based burger like substance. It's a rare treat. Black bean to me, only works in a chili.
The issues with most gluten free breads is not only getting the texture right, but not having it go stale so fast. Usually within 24 hours I have what I call 'biscuit rubble' as that's how it seems to be, a poor biscuit, and not much after that, inedible. Expensive nitrogen packed hockey puck sized commercial versions get it pretty well, but usually snuck something like honey or agave (which make me sick) into them if I get past the other things like eggs being used (it may be gluten free but it's not vegan by a long shot). And those also have to do the traditional being toasted before being used to try to get rid of that biscuit bit, but they will last three days (two days after opening day).
For bread I count on tapioca starch to give me something resembling the texture that the gluten and the egg proteins give.
I have dabbled with agar to try to give textures and mostly it's been an expensive flop.
Caroubin sounds promising but I don't think it's commercially available.