Attached Link: http://www.instructables.com/id/Cheap-Portable-Chroma-Key-Screen-Bluescreen/

Attached is a link to a Blue Screen or Chroma Key Screen.  Don't think this will help you photograph food textures though as these screens are mainly used to overlay/mix video and graphics -

en.wikipedia.org/wiki/Chroma_key

What you do need is good lighting and possibly a macro lens to capture details in the food to use as 3d textures - Here is a link  with tips on food photography - www.professionalphotography101.com/photography/HowtoPhotographFood.html

Hope this helps!
Joe

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