End of the water bottle? Edible algae 'balloon' could cut plastic waste :-
To solve the rising number of plastic bottles filling up landfills around the world, a trio of designers has created an alternative - a container made from an edible algae balloon, called : Ooho, the spheres can be produced in different sizes, hygienically protect the liquid inside, and cost just 2 cents (less Rs 0.50) each.
The Ooho sphere has a double gelatinous membrane.
It is made using a mixture of sodium alginate, taken from brown algae, and calcium chloride.
The spheres are created using gelification - a technique used in cooking to turn liquids into gel by adding an edible gelling agent.
The inventors experimented with various spherification techniques, using different ingredients and proportions, before settling on the Ooho final ‘recipe’.
Packaging labels can be added to the Ooho, between the two layers, without adhesive, and are edible too, if they’re made from rice paper.