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Interactions among factors of (A) Ground mixtures (GMs) without sodium dodecyl sulfate (SDS), and (B) GMs with SDS. B1: 0, 0-min grinding; B2: 15, 15-min grinding; B3: 30, 30-min grinding; B4: 45, 45-min grinding; and B5: 60, 60-min grinding.
