Banana Peel Bioplastic
Reference
This project was developed by a 16-old Turkish student for the Google Science Faire.
Trial 1 - Diverging points from the original protocol
Trial performed at FoAM Brussels Biolab on September 22nd.
- 4 banana peels on ripening degree 7 (rather than 4)
- Dried them in kitchen paper (instead of gauze)
- Washed the puree (rather than the banana peels) with a 1% (rather than 0.5%) sodium metabisulphite solution
- The color of the puree was dark yellow after blending.
- The color turned salmon after adding HCl
- The color turned dark olive green after adding NaOH (lessive de soude)
- Propane 1-2-3 triol was replaced by liquid glycerin from suppositories
- The proportions were 6 times higer than in the protocol
- Cooked 40 minutes in the random temperature gas oven of FoAM Brussels
Ended up as a black unstructure & cooked-puree like structure (not a plastic at all).
Trial 2
Trial performed at FoAM Brussels Biolab on September 24th.
- 1 banana peel, ripening degree 4
- Dipped 10 minutes in the 1% sodium metabisulphite solution.
- The solution stayed open to the air in the lab for 36 hours.