CAJ | 학술논문

利用漆酶和漆酶/紫脲酸对杨木BCTMP中溶出的DCS进行控制。结果表明：与对照样相比，漆酶处理使得DCS的阳电荷需求量和平均粒径下降，浊度和木素质量浓度增加；漆酶/紫脲酸处理后，DCS的阳电荷需求量、浊度和木素质量浓度下降，平均粒径进一步降低。 GC-MS分析表明，漆酶和漆酶/紫脲酸处理后，由于木素大分子的降解，木素衍生物质量浓度增加，总脂肪酸质量浓度分别下降18％和33％，甘油酯和甾醇酯得到全部降解。
이용칠매화칠매/자뇨산대양목BCTMP중용출적DCS진행공제。결과표명：여대조양상비，칠매처리사득DCS적양전하수구량화평균립경하강，탁도화목소질량농도증가；칠매/자뇨산처리후，DCS적양전하수구량、탁도화목소질량농도하강，평균립경진일보강저。 GC-MS분석표명，칠매화칠매/자뇨산처리후，유우목소대분자적강해，목소연생물질량농도증가，총지방산질량농도분별하강18％화33％，감유지화치순지득도전부강해。
An experiment was conducted to investigate the biological treatment of dissolved and colloidal substances ( DCS) pres-ent in aspen bleached chemithermomechanical pulp with laccase and laccase/violuric acid.The cationic demand and the average particle size of DCS were decreased after laccase treatment, but the turbidity and the content of lignin were in-creased.The cationic demand, the turbidity and the content of lignin were decreased by laccase/violuric acid treatment compared with controlled samples.The average particle size was further decreased due to laccase/violuric acid treatment. Gas chromatography coupled to mass spectrum analysis indicated that the amount of lignin derivatives was increased be-cause of the greatly degradation of lignin macromolecule after treatment with laccase and laccase/violuric acid.Laccase and laccase/violuric treatments led to the decrease of the total amount of fatty acids by 18%and 33%, respectively .The glyc-eride and the steryl ester were degraded completely .