The Following Recipe is Created by Elma Schenkelaars – lecturer in Chemistry/NLT Ids Klompmaker- Wageningen University Ties van de Laar- Wageningen University .
-250 ml water
-1.3 g citras
-1.8 g alginate
-250 ml mango puree
-Calcium bath with 1 litre water and 5 g calcium
-Dissolve the citras in the water
-Add the alginate and mix. Make sure that you add the alginate slowly so that it does not coagulate
-Heat this mixture briefly up to 90 degrees
-Add the mango puree to the cooled solution (put the solution on ice if necessary to speed up the cooling)
-Measure the pH. The pH should be 4. If it is not, add citras until you obtain a pH of 4.
-Make the calcium bath by putting 1 litre of water in a bowl and dissolving 5 g calcium in it
The alginate balls can now be made by carefully dropping little droplets of the alginate solution into the calcium bath using a syringe. Leave the droplets to harden for about 20 to 30 seconds, and take them out carefully with a sieve (tip: It is useful to leave the sieve hanging in the calcium bath and drop the solution carefully into it. Rinse the hardened alginate balls under clean water.
Buy your required ingredients here and Make Your Own Alginate Balls within a Week!