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Expedited extraction of xylan from corncob by power ultrasound 被引量:3
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作者 Wade Yang Vishnu K.Ajapur +3 位作者 Kathiravan Krishnamurthy Hao Feng Ruijin Yang Taha M.Rababah 《International Journal of Agricultural and Biological Engineering》 SCIE EI CAS 2009年第4期76-83,共8页
Some lignocellulosic biomass like corncob contains a large amount of xylan,a valuable material for applications in food,chemical and pharmaceutical industries.Conventional extraction of xylan is a time consuming proce... Some lignocellulosic biomass like corncob contains a large amount of xylan,a valuable material for applications in food,chemical and pharmaceutical industries.Conventional extraction of xylan is a time consuming process,requiring 12 to 24 hours to complete.In this study,the efficacy of power ultrasound for reducing the extraction time and increasing the xylan yield was investigated.Two acoustic energy densities(0.18 W/mL and 0.45 W/mL)of the power ultrasound were applied to corncob for 10,20,30,and 60 min.The treated samples were steamed at 110,118 and 121℃for 30 min.At 0.45 W/mL acoustic energy density and 121℃steaming temperature,ultrasonic treatment was able to extract 39%of xylan in 43 min.In contrast,the conventional treatment was able to extract only 34%of xylan in 24 h.Power ultrasound assisted extraction reduced the processing time by 97%in addition to yield increase by 14.7%.Power ultrasound can be a potential technology for enhanced xylan extraction from corncob to result in significant processing time savings. 展开更多
关键词 Power ultrasound sonication lignocellulusic biomass XYLAN EXTRACTION CORNCOB STEAMING
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