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Fig. 2. Evidence of precipitation using the dibasic regimen in various amino acid solutions at increasing calcium and phosphate concentrations in a 1:1 molar ratio. Solutions were observed at three phases: immediately (t = 0 h), 24h after preparation (ppt) at room temperature (t = 24 h), and 3 hours at 37°C following 24h at room temperature (t = 27 h). Within each phase, macroscopic analysis was performed with subsequent microscopic analysis. Trophamine and Aminosyn-PF are prepared with added 40 mg HCL cysteine/g amino acid.
