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《Chinese Journal of Environmental Engineering》 2007-01
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Study on treatment of pulp black liquor and reuse of amylose resources

Wu Yinhua Zhou Qiuhua Liu Deqi Qian Xiaomin(School of Chemistry and Chemical Engineering,Suzhou University,Suzhou 216006)  
For containing abundant resources of polysaccharide in straw-pulp black liquor, purification of oligosaccharide is an economical and effective way of getting functional oligosaccharides.Sync-separation of lignin process route on the basis of maximum reclamation of amylose resources is proposed. Simultaneously,the factors effecting on amylase separation such as pH,temperature,time of placement and so on are discussed.Under conditions of acidic black liquor of pH 4.0~5.0,temperature of 65~70℃ and placement of 3~4 h,(7.43 g/L) amylose can be recovered from 49.87 g/L solid content of wheat-straw-pulp black liquor and 4.91 g/L amylose can be recovered from rice-straw-pulp black liquor.This provides techniques of realizing reuse of straw-pulp black liquor to make resources.
【Fund】: 河南省科技攻关计划资助项目(961190304 971190218)
【CateGory Index】: X793
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