CAJ | 학술논문

研究了影响纤维素酶水解亚硫酸盐蔗渣浆的一些影响因素,采用离子色谱、X射线衍射(XRD)、傅里叶红外光谱(FT-IR)和原子力显微镜(AFM)对水解液成分、纤维素超分子结构及纤维形态的变化进行了分析.结果表明,在最适条件下,未漂浆和漂白浆的水解得率分别为74.89%和70.67%,漂白浆的水解得率低于未漂浆.水解产生的纤维二糖的质量浓度随反应进行逐渐降低,其中未漂浆的纤维二糖质量浓度由6h时的7.95g/L降到了72h时的2.44g/L,漂白浆的纤维二糖质量浓度由6h时的6.59g/L降到了72h时的3.11g/L.酶解使纤维素结晶度升高,但没有改变晶型.
연구료영향섬유소매수해아류산염자사장적일사영향인소,채용리자색보、X사선연사(XRD)、부리협홍외광보(FT-IR)화원자력현미경(AFM)대수해액성분、섬유소초분자결구급섬유형태적변화진행료분석.결과표명,재최괄조건하,미표장화표백장적수해득솔분별위74.89%화70.67%,표백장적수해득솔저우미표장.수해산생적섬유이당적질량농도수반응진행축점강저,기중미표장적섬유이당질량농도유6h시적7.95g/L강도료72h시적2.44g/L,표백장적섬유이당질량농도유6h시적6.59g/L강도료72h시적3.11g/L.매해사섬유소결정도승고,단몰유개변정형.
Affecting factors were studied during the hydrolysis of bagasse sulfite pulp by cellulase. Analyses on hydrolysis filtrate, the change of cellulose supramolecular structure and morphological characteristic caused by enzymatic treatment were carried out by ICS, X-ray diffraction, FT-IR and AFM. The results showed that, hydrolysis yields of bleached pulp and unbleached pulp were 74.89% and 70.67%, respectively. The hydrolysis yield of bleached pulp was lower than that of unbleached pulp under similar optimum conditions. Cellobiose concentration decreased during hydrolysis from 7.95 to 2.44g/L and from 6.59 to 3.11g/L at 6 h and 72h for unbleached and bleached pulp, respectively. The crystallinity of cellulose increased after enzymatic treatment while crystal form had no transformation.