The first superscript letter (a-e) shows a significant difference (p < 0.05) along a particular row, and the second superscript letter (x-y) shows the significant difference
(p < 0.05) down a particular column for a specific attribute. F1 (Shellac), F2 (Shellac + Starch), F3 (Shellac + EDTA) and F4 (Shellac + Sodium alginate). RR: respiration rate; TP:
total phenolics; TF: total flavonoids.