Table 11 shows higher solubilities for some other carboxylates of
calcium, magnesium, and sodium. Only calcium L-malate and calcium
succinate are reasonably insoluble. The calcium succinate solubilitycan be decreased by increasing the temperature. Some calcium succinate
precipitated during a fermentation where the pH was controlled
at 6 by using calcium hydroxide (Datta, 1992). After filtration, heating
of the filtrate to 80 °C led to additional precipitate. Cells and proteins
were not retained by the filters. Magnesiumsuccinate is notmentioned
in the table, but seems to have a low solubility (Van Krieken and Van
Breugel, 2010).