Table 1.

Relative standard deviation calculated from content uniformity data over 4 months completed by HPLC analysis for three iDPC formulations containing 10%, 45%, and 80% L-glutamic acid.

Formulation	Month 0 (%RSD) (%)	Month 1 (%RSD) (%)	Month 2 (%RSD) (%)	Month 4 (%RSD) (%)
iDPC 10%	0	1	0	0
iDPC 45%	1	2	1	2
iDPC 80%	4	1	2	2

The process parameters of the iDPC formulations are as follows: 2.5 min of pre-processing time, 17.5 min of process time, 22.5 l/min flow rate, 95 relative centrifugal force (RCF).