Comparing different binding agents (Konjac, Xanthan Gum, Guar Gum, Corn Flour)

Is there any way to figure out the potency of different binding agents, such as: Konjac, Xanthan Gum, Guar Gum, Corn Flour, before purchasing them?
Best Answer
I'm not familiar with cornflour being used as a binding agent, but as a thickener or as a key ingredient in things like Turkish Delight as a gelling agent. When cooked it releases starch which gels things up.
Xanthan and guar gums are used as a substitute for gluten in flour blends that cater for coeliacs and other sufferers. Since they replicate gluten's role in baking it's safe to say that they're quite sticky when wet.
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