Characterization of non-cellulosic glucans in Eucalyptus globulus Labill. wood and kraft pulp
Characterization of non-cellulosic glucans in Eucalyptus globulus Labill. wood and kraft pulp
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DOI：
10.1515/hf.2007.110
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发表时间：
2007-01-01
期刊：
影响因子：
2.4
通讯作者：
Neto, Carlos Pascoal
中科院分区：
文献类型：
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作者：
Lisboa, Sara A.;Evtuguin, Dmitry V.;Neto, Carlos Pascoal
蓝桉木材中非纤维素葡聚糖的含量(约通过在90-120℃下用0.5M NaOH溶液提取木屑来鉴定其结构，并通过热水提取(120℃，2 h)从富含葡聚糖的多糖组分中鉴定了其结构特征。用湿化学法和一维、二维核磁共振技术对分离得到的可溶性葡聚糖进行了表征。葡聚糖主要由直链淀粉(20%)和支链淀粉(80%)组成，但也有少量β-(1-gt；3)-葡聚糖(
The amount of non-cellulosic glucans in Eucalyptus globulus wood (approx. 4.5%) was assessed by extraction of sawdust with a 0.5 M NaOH solution at 90-120 degrees C and the structural features were elucidated in a glucan-enriched polysaccharide fraction isolated by hot water extraction (120 degrees C, 2 h). Isolated soluble glucans were characterized by wet chemistry methods and a set of 1 D and 2D NMR techniques. The major proportion of glucans consisted of amylose (20%) and annylopectin (80%), although a small proportion of beta-(1 -> 3)-glucan (