Reactions of Calcium Phosphate with Some Fruit Juices

Abstract

Reactions of calcium phosphate with some fruit juices, viz., juice of
jamiri, gagal and kagzi lemons (Citrus limon), orange (Citrus aurantium),
sweet orange (Citrus sinensis), cherries (Prunus cerasus) and
grapes (Vitis viuifera) have been studied. Solubility of calcium phosphate
in the fruit juices has been determined. Conductometric titrations
evidenced complexation of calcium phosphate by the complexone
(hydroxy acid) of fruit juices. The juices have been standardised with
respect to their hydroxy acid content by a comparative method. A calcium
phosphato citrate (1 : 3) complex has been isolated and characterised
from the reaction mixture of calcium phosphate and kagzi lemon
juice.