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. 2019 Nov 13;9(63):36890–36906. doi: 10.1039/c9ra07127j

Common approaches to prepare the active protein/OA complexes.

Procedure type Protein Procedure dependence Protein/OA molar ratio Ref.
Column chromatography Human α-LA, bovine α-LA, equine lysozyme Depends on removing Ca2+ from protein with EDTA bound to column pre-conditioned with OA 1/∼1–5 for α-LA/OA, 1/∼5–35 for equine lysozyme/OA 16–18, 33, 35, 37 and 48
Alternative method Bovine α-LA Depends on partially heated holo protein followed by loading to OA pre-conditioned column Not assayed 11
Heat-induced method Camel, human and bovine α-LA, bovine LF, bLG, camel, human and bovine albumin Exposure of holo form of protein to heating at 50–60 °C, then add OA directly 1/∼2.5–10 for α-LA/OA and bLG/OA, 1/15.8 for bovine albumin/OA, 1/12.9 for human albumin/OA, 1/17.9 for camel albumin/OA 7, 11–13, 19 and 48
Direct mixing method α-LA, parvalbumin, bLG Direct incubation of protein with OA at change in pH to acid or alkaline environment 1/4.5 for OA/α-LA, 1/13 for OA/parvalbumin, 1/17 for OA/bLG 8, 20, 21 and 23–25