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Figure 5 | BMC Research Notes

Figure 5

From: Cloning and expression of an endo-1,4-β-xylanase from the coffee berry borer, Hypothenemus hampei

Figure 5

Assay for inhibition of xylanase activity. (A) Inhibition of HhXyl activity by different amounts of pure recombinant XIP-I. The HhXyl activity was quantified by the DNS method and xylan from oat spelt was used as a substrate. (B) Inhibition of the xylanase activity present in crude protein extracts from the digestive tracts of the borers with different amounts of pure XIP-I. The activity was quantified by the DNS method.

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