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Fig. 5 | Biotechnology for Biofuels

Fig. 5

From: Specific tracking of xylan using fluorescent-tagged carbohydrate-binding module 15 as molecular probe

Fig. 5

Tracking xylanase hydrolysis of UBKP using OC15 probe. Paper discs were incubated with xylanase (0.4 U/paper disc and 0.1 U/paper disc) for up to 18 h (pH 6) at room temperature under continuous agitation (150 rpm). Untreated UBKP and xylanase-treated UBKP paper discs were incubated with OC15 probe (0.06 µg/µL) for 1 h at room temperature under agitation. Three percent (w/v) milk (20 mM Tris–HCl, pH 7.5 with 20 mM NaCl and 5 mM CaCl2) was used to minimize paper auto-fluorescence and non-specific binding of the OC15 probe. The fluorescence values were converted to OC15 (µg/mm2) using a standard curve (Additional file 9)

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