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. 2021 Apr 30;7(5):354. doi: 10.3390/jof7050354

Figure 6.

Figure 6

Hydrolysis zones indicate the production of carbohydrate-degrading enzymes. (A) Pectinase activity determining PSAM medium (red circle), (B) starch degradation determining starch degradation screening agar (SSA) (grey border), (C) hemicellulolytic activity determining xylanase screening agar (XSA) (blue circle), and (D) cellulolytic activity determining carboxymethylcellulose agar (CMC) (green border). Halos were visualized after flooding the petri dishes with potassium iodide–iodine (A,B) or 0.1% Congo red solution (C,D) after incubating for 48–96 h at 25 °C.