The electrostatic separation can be optimized using two passes of separation. This resulted in protein purity of 63.4 g/100 g dry base and a yield of 15.8 g/100 g dry solids. The two-step dry fractionation procedure produced a protein-enriched fraction with a yield of 4.0 g/100 g pea, resulting in 7.8% total protein recovery from yellow pea (Xing et al., 2020).

Yellow pea protein extraction by ultrafiltration yielded 57% yield and 83.9% protein content.

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