https://www.selleckchem.com/pr....oducts/spop-i-6lc.ht
Novel γ-[Glu](n≥1)-Gln-Ca chelates were prepared by using γ-[Glu](n≥1)-Gln (mixture peptides containg γ-Glu-Gln, γ-Glu-Glu-Gln, γ-Glu-Glu-Glu-Gln, γ-Glu-Glu-Glu-Glu-Gln, γ-Glu-Glu-Glu-Glu-Glu-Gln) which were synthesized by glutaminase. Based on single factor and orthogonal array experiments, the optimal calcium-chelation conditions were as follows 30 min chelation at 70 °C; peptide concentration, 0.15 g/mL; mixture peptides-to-calcium mass ratio, 251. The particle size of chelates was 743.6 ± 64.2 nm and the chelates appeared stable
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