Bioplastic: PLA polylactide

http://www.kao.com/jp/en/corp_rd/skills_04_04.html 

http://www.smithsonianmag.com/science-nature/corn-plastic-to-the-rescue-126404720/?no-ist 

http://green-plastics.net/ 

http://en.wikipedia.org/wiki/Polylactic_acid 

http://www.biocycle.com.br/imprensa_ing_02.htm