Mouth feel and preservative

[bobjohnson77]

I am new to soda making, but Ifound these at the lhbs
http://www.homebrewhq.com/ProductDetails.aspx?productID=2140
for a preservative
and http://www.homebrewhq.com/ProductDetails.aspx?productID=1312
for the mouth feel anyone tried either of these or have better ideas?

 

[PintOfBitter]

I would think that some kind of gum would go further towards mouthfeel. Like guar gum or xanthan gum or something.

Guar gum can be found cheap, and even organic. you shouldn't need much.

I don't know about preservatives.