CAJ | 학술논문

采用化学法、生物法以及生物化学法纯化马铃薯渣中的纤维素，并用 H2O2对薯渣纤维素进行漂白，得到纯化的马铃薯渣纤维素；采用高压均质机对薯渣纤维素进行纳纤化处理．利用光学显微镜、扫描电子显微镜(SEM)和激光粒度仪对薯渣纤维素进行观察和表征，采用X射线衍射仪对薯渣纤维素的结晶性质进行检测.结果表明：3种方法所得产物的得率不同，顺序为生物法＞生物化学法＞化学法，以化学法所得产物最为纯净；纯化后薯渣纤维素的 ISO 白度从22.6%提高到84.0%；高压均质处理之前呈片状结构，处理后呈现明显的微纤化，宽度达到100,nm以下；薯渣纤维素经纯化以及高压均质化后，其结晶结构均为纤维素 I 型，但高压均质处理对纤维素结构有一定的破坏作用，导致结晶度有所下降.
채용화학법、생물법이급생물화학법순화마령서사중적섬유소，병용 H2O2대서사섬유소진행표백，득도순화적마령서사섬유소；채용고압균질궤대서사섬유소진행납섬화처리．이용광학현미경、소묘전자현미경(SEM)화격광립도의대서사섬유소진행관찰화표정，채용X사선연사의대서사섬유소적결정성질진행검측.결과표명：3충방법소득산물적득솔불동，순서위생물법＞생물화학법＞화학법，이화학법소득산물최위순정；순화후서사섬유소적 ISO 백도종22.6%제고도84.0%；고압균질처리지전정편상결구，처리후정현명현적미섬화，관도체도100,nm이하；서사섬유소경순화이급고압균질화후，기결정결구균위섬유소 I 형，단고압균질처리대섬유소결구유일정적파배작용，도치결정도유소하강.
Chemical,biological and bio-chemical methods were adopted to purify the cellulose from potato residue,and then the cellulose was bleached with H2O2. At last,the purified cellulose was treated with high pressure homogenizer in order to obtain the nano-fibrillated cellulose(NFC). The morphology of the cellulose from potato residue was characterized with optical microscopy,SEM and Laser particle size analyzer,and the crystallization properties were determined with X-ray diffraction(XRD). The results showed that the order from high to low of the yields with different methods is as follows:biological method,bio-chemical method and chemical method. The brightness of the cellulose inceased significantly from 22.6%ISO to 84.0%ISO. All the samples before homogenization had the similar sheet structure,while it changed into mi-crofibril structure with the width less than 100,nm after homogenization. The cellulose from potato residue has the same crys-talline structure,namely Cellulose I. The homogenization with high pressure can somewhat damage the structure of the cellu-lose crystals,which leads to a decrease of the crystallinity.