I've previously mentioned bioplastics a few times on GLT - for example, in my article on
biodegradable, degradable and compostable
plastics, a look at
corn-based cutting boards and also a post from last year on
bioplastic
gift cards.
While plant material based plastics are a great concept, one of the challenges is the amount of energy needed to produce them.
However, it seems South Korean scientists have been able to produce polymers needed for everyday plastics through bioengineering
and in doing so, reducing the amount of energy and inputs required.
Polylactic Acid (PLA) has been the most popular component of bioplastic productions, but up until now it has been produced in a fermentation and chemical process of polymerization in two steps. The
South Korean scientists have used a metabolically engineered strain of E. coli and developed a one-stage process
that they say may allow for the production of more environmentally-friendly plastic that is biodegradable and low in toxicity.
Hmm.. fiddling with E Coli? I thought this sounded a little dangerous, but I'm certainly not a
science-talkin' sort of dude. Most of us associate E Coli with food poisoning, but
after checking Wikipedia it turns out it is commonly found in the lower intestine of warm-blooded
creatures and most E. coli strains are actually harmless.
GMO (Genetically Modified Organism) playing a role in plastics production
certainly sound a little better than
GMO food
crops; as long as these frankengerms behave nicely of course.
With all this messing about with GM organisms, I've often wondered how much closer we are to some sort of catastrophic mutation that comes back to bite us on the bum. Again, the disclaimer - I'm not a
science-talkin' dude, so perhaps my concerns are unfounded. The questionable
nature of GMO food is a totally different story though.
Still, the bioplastics breakthrough is a very interesting bit of news - you can
read more about it
here.