Abstract:

Superfine-grinded eggshell powder was prepared using planetary ball mill under low temperature, and its effects as a source of calcium on minor minerals in blood serum and calcium in bone of Sprague-Dawley (SD) rats were studied. Calcium, magnesium and phosphorus levels in blood serum were determined using a biochemical analyzer with conventional methods, and calcium level in bone was determined using atomic absorption spectrometry. Results showed that calcium levels in blood serum and bone of rats treated with superfine-grinded eggshell powder were significantly higher than those of the control group, with significant weight gain at the same time.

Key words: superfine-grinded eggshell powder, serum calcium level, bone calcium