福建农林大学学报(自然科学版)
福建農林大學學報(自然科學版)
복건농림대학학보(자연과학판)
JOURNAL OF FUJIAN AGRICULTURE AND FORESTRY UNIVERSITY(NATURAL SCIENCE EDITION)
2009年
5期
548-551
,共4页
刘艳萍%张洋%江华%吴羽飞
劉豔萍%張洋%江華%吳羽飛
류염평%장양%강화%오우비
木聚糖酶%麦秸%表面性能
木聚糖酶%麥秸%錶麵性能
목취당매%맥갈%표면성능
xylanase%wheat straw%surface property
通过研究木聚糖酶处理条件对麦秸表面性能的影响,得出最佳工艺条件为:处理温度45 ℃、时间6 h、pH 5.0、酶用量205.0 IU·g~(-1).借助扫描电子显微镜和傅立叶红外光谱分析技术,分析酶处理后麦秸单元的微观结构和表面官能团变化的结果表明:酶处理的麦秸单元的外表面接触角显著减小;-OH峰明显增加,纤维素、木质素类物质大量暴露出来;蜡质层脱落和翘起,有明显纤维骨架露出,有利于提高其胶合性能.
通過研究木聚糖酶處理條件對麥秸錶麵性能的影響,得齣最佳工藝條件為:處理溫度45 ℃、時間6 h、pH 5.0、酶用量205.0 IU·g~(-1).藉助掃描電子顯微鏡和傅立葉紅外光譜分析技術,分析酶處理後麥秸單元的微觀結構和錶麵官能糰變化的結果錶明:酶處理的麥秸單元的外錶麵接觸角顯著減小;-OH峰明顯增加,纖維素、木質素類物質大量暴露齣來;蠟質層脫落和翹起,有明顯纖維骨架露齣,有利于提高其膠閤性能.
통과연구목취당매처리조건대맥갈표면성능적영향,득출최가공예조건위:처리온도45 ℃、시간6 h、pH 5.0、매용량205.0 IU·g~(-1).차조소묘전자현미경화부립협홍외광보분석기술,분석매처리후맥갈단원적미관결구화표면관능단변화적결과표명:매처리적맥갈단원적외표면접촉각현저감소;-OH봉명현증가,섬유소、목질소류물질대량폭로출래;사질층탈락화교기,유명현섬유골가로출,유리우제고기효합성능.
The experiment of xylanase treatment on wheat straw was conducted. The optimum conditions of the treatment to improve the surface properties of wheat straw were that treatment temperature 45 ℃, treatment time 6 h, pH 5.0, enzyme usage 205.0 IU · g~(-1). The microstructure and surface functional group of treated wheat straw were investigated with electricity microscope and fourier transform infrared spectroscopy ( FTIR).The results indicated that the contact angle of outer surface of treated wheat straw de-creased evidently; the outer surface of treated wheat straw was rough, the wax-layer of wheat straw was dissolved; cellulose and lig-nin were activated with -OH increasing.