OCC制浆过程中抑制二次淀粉降解的研究  

Inhibition Study of Secondary Starch Degradation During OCC Pulping Process

作　　者：郭锦还 程正柏 刘利琴[1,3,4] 徐清凉 张小红 曹海兵 刘洪斌[1,3,4] 安兴业[1,3,4] GUO Jinhuan;CHENG Zhengbai;LIU Liqin;XU Qingliang;ZHANG Xiaohong;CAO Haibing;LIU Hongbin;AN Xingye(Tianjin Key Lab of Pulp and Paper,Tianjin University of Science and Technology,Tianjin,300457;Zhejiang Jingxing Paper Joint Stock Co.,Ltd.,Pinghu,Zhejiang Province,314214;State Key Lab of Biobased Fiber Manufacturing Technology,Tianjin University of Science and Technology,Tianjin,300457;China Light Industry Key Lab of Papermaking and Biorefinery,Tianjin University of Science and Technology,Tianjin,300457)

机构地区：[1]天津科技大学,天津市制浆造纸重点实验室,天津300457 [2]浙江景兴纸业股份有限公司,浙江平湖314214 [3]天津科技大学,生物源纤维制造技术国家重点实验室,天津300457 [4]天津科技大学,中国轻工业造纸与生物质精炼重点实验室,天津300457

出　　处：《中国造纸》2023年第4期20-27,共8页China Pulp & Paper

基　　金：国家自然科学基金(32101470);中国博士后科学基金(2022M712379,2021M692401);浙江景兴纸业股份有限公司校企合作项目。

摘　　要：研究了4种金属离子(Cu^(2+)、Zn^(2+)、Mn^(2+)、Li^(+))对二次淀粉降解的抑制效果及其最佳添加量,并利用杀菌剂与其协同处理,探究OCC制浆过程中二次淀粉降解的抑制问题。结果表明,Cu^(2+)具有最佳的抑制效果。当反应时间4 h、Cu^(2+)添加量为0.20 mol/t时,原淀粉几乎不降解;当反应时间4 h、Cu^(2+)添加量为0.024 mol/t时,酶解淀粉的降解率最低,为15.4%;当杀菌剂与Cu^(2+)协同作用时,相比单独添加杀菌剂,原淀粉4 h抑制效果提升58.0%,酶解淀粉4 h抑制效果提升31.2%。The inhibitory effects of four metal ions(Cu2+,Zn2+,Mn2+,and Li+)on the degradation of secondary starch and their optimum ad‐dition amount were studied.The synergistic treatment with fungicides was applied to explore the inhibition issue of secondary starch degrada‐tion in the OCC pulping process.The results showed that Cu2+had the bettter inhibitory effect.When the reaction time was 4 h and the addi‐tion amount of Cu2+was 0.20 mol/t,the native starch was hardly degraded.When the reaction time was 4 h and the addition amount of Cu2+was 0.024 mol/t,the enzymatic hydrolyzed starch degradation rate of 15.4%was lowest.When the fungicide and Cu2+synergistically acted 4 h,compared with the fungicide adding separately,the inhibition effect of native starch was increased by 58.0%,the inhibition effect of en‐zymatic hydrolyzed starch was increased by 31.2%.

关 键 词：OCC 二次淀粉 水解 淀粉酶抑制剂 杀菌剂 

分 类 号：TS749.7[轻工技术与工程—制浆造纸工程]