Figure 2.
Extraction yield of betalains from unsold red beets at 45 °C and pH 5.5. Trials were performed using different total doses of enzymatic mix: (A) 10 U/g, (B) 18 U/g, (C) 25 U/G, (D) 38 U/g, and (E) 50 U/g for several processing times. For betacyanins (Bt), means, indicated by capital letters, vary significantly (one-way variance analysis, p = 0.05) with processing time. For betaxanthins (Bx), means, indicated by lower-case letters, vary significantly (one-way variance analysis, p = 0.05) with processing time.