Beet root is famous for its rich contain of nitrate http://www.bocsci.com/description.asp?cas=14797-55-8&cid=1
,and it's the raw material for sugar. Anually, about 20% sugar is from sugar beet. Recently scientists extracted Curran from beet root. The good news is that Curran is a rival substance of carbon fiber with one time stronger strength. When adding Curran into other materials, both strength and viscosity will be enhanced. It's said Curran can be applied in plane wing making.
source from BOC Sciences Blog http://www.bocsci.com/blog/