霉菌在甘蔗浆上生长特性与其对抄纸性能影响的的研究

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1、4．采用SEM观察未经目标菌株处理的蔗渣浆和经处理的蔗渣浆纤维表面形态，对比可知：经过目标菌株处理过的蔗渣浆纤维表面出现明显的裂隙、剥落或沟槽等现象，并且随着蔗渣浆被霉菌降解作用的延长，浆料中纤维结构被破坏的越严重。5．未经目标菌株处理的蔗渣浆和经过处理72h蔗渣浆抄成纸，对其物理性能进行比较，结果为：处理72h的纸张比未经处理的纸张抗张指数下降14．73％(由84．5N．m·分1降低到72．ON．m·g。1)，耐破指数下降16．17％(由6．8KPa-m2·g降低到5．7KPa．m2·g)，撕裂指数从7．61％(由9．2mN．m2·g下降为8．5mN·m2·g)，耐折指数下降35．7

2、1％(由28下降到18)，均有一定程度的降低。关键词：霉菌蔗渣浆纤维素酶木聚糖酶纤维素结构抄纸性能STUDYoNTHEGRoWTHCHARACTERISTICoFTHEMoLDINTHEBAGASSEPULPANDITSPAPERMAKINGPRoPERTYABSTRACTThemaincomponentsofmesugarcanebagasseiscellulosewhichprovidesthenutrientformicrobialgrowtll．ThemicrobialgrowthinpulpanditSproducts，andthensecretionttlecellulas

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4、atethemostpower向lde黟adationfibermouldf而mthesugarcanebagasseandidenti矽itsbiologicalclassification；Toanalyzethecharacterandfennentedem≯meproductionconditionsofstrainsproducedcellulaseandxylanolyticem秒mesem可mology；mouldprocessaR

5、erthepulpstmcturechangeandinnuenceontheperf．ornlanceofthewriting．There

6、sultsareasfollows：1．Tllebacteriaforsugarcanebagassepulpseparationandp面fication，andthenscreenouttheem拶me1iVestrainsgetamorestrongerstrainsindegradationcelluloseandhemicelluloseability，appraisalofclassicsfor彳印g俘胁．2．Studiesshowthat：①Ta玛etst]rainsecreto巧cellulaseoptimumen巧maticreactiontempera_turein

7、40℃，optimalpHen巧maticreaCtionfor6．5；Ta玛et8trainproducexylan01yticem可mesoptimumem可maticreaCtiontemperatllrei1140℃，bestenzymaticreactionpHfor5．5；②ThetargetstraillsuitablegrowmllIconditioIlsare：reactiontemperanJl．e30℃，pH7．5，phosphoruslO％，Nitrogen40％，magnesium5％．Therefore，bagaSsepulpwhenstoredavoidt

8、obeintheI．eactionconditions．3．111ebagassepulpwaSworkedon72hby啦etstrain，mewei出-lessnessratewas34．9％，thecellulosecontentlow36．07％(83．45％reducedto78．38％)，moldworkedoncellulose舶erbiodegradablesignificalltly．4．WiththeSEMobservati