Study on preparation of xylooligosaccharide from rice husk by high pressure cooking-assisted xylanase
The extraction process of xylooligosaccharides from rice husk by high pressure cooking-assisted xylanase was studied. On the basis of single factor tests, the extraction process was optimized by using Box-Behnken test design and response surface analysis. The results showed that the optimum extraction conditions were cooking pressure of 0.9 MPa, cooking time of 50 min, xylanase addition of 6.7%, enzymolysis time of 3.0 h, and pH of 6.0. According to the process, the content of xylooligosaccharides from rice husk was up to 8.26 mg/g.
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