PLA is a corn based resin made by NatureWorks® and it is a plastic that requires much less energy to mold.  It has a wide variety of packaging uses including plastic bottles, trays, films, and containers.  PLA uses approximately 68% less fossil fuel to produce and it is the first greenhouse gas neutral polymer.  This polymer is particularly well suited for injection stretch blow molding to form bottles and jars.  This is a great plastic bottle substance because it will fit with all landfill diversion options and has great transparency.

Here is a quick synopsis from NatureWorks:

FROM PLANTS TO PLASTIC

How is Ingeo™ natural plastic made?

We start with an abundant, natural resource like plants, which can easily and efficiently be reproduced each year. When plants grow, they use CO2 and sunlight to create carbon – a process called photosynthesis. Today's technology allows us to isolate the starch from the other components of the plant and turn that starch into dextrose. The dextrose, or sugar, is fermented, in a process similar to making yogurt, to create lactic acid.  Lactic acid is a naturally occurring material that gives the “tang” to yogurt and makes your muscles ache after a work-out. From lactic acid we create a molecule called lactide. We remove water, crystallize it and create the high-performance polymer – polylactide (PLA) – which is branded Ingeo™ natural plastic and is used to make a variety of plastics and fibers applications.