摘要
以B型微晶淀粉作为原料,分别在水和醇作溶剂的情况下,与正己醇络合制备得到V型复合物。应用扫描电镜(SEM)、X-射线衍射仪(XRD)、差式扫描量热仪(DSC)、傅里叶红外光谱仪等对两种条件下得到的V型直链淀粉-正己醇复合物的晶体结构进行了表征。应用红外光谱对水及醇溶剂法制备得到的V型直链淀粉-正己醇复合物进行测定,定性确定了V型复合物中正己醇配体的存在;进一步应用主成分分析方法(PCA)对红外吸收光谱进行分析。结果表明:水及醇溶剂法制备得到V型直链淀粉-正己醇复合物的水化物和无水形式晶体。水化物形式晶体颗粒间粘连较严重,无水形式晶体的颗粒直径均为0.5～1μm,二者的结晶度均达到70%以上。V型直链淀粉-正己醇复合物的水化物与无水形式晶体的熔化温度几乎相同,且其复合物中醇类配体的含量分别为9.79%和4.3%。
In this paper, B -type microcrystalline starch made a combination with hexanol in the case ot water and alcohol as solvent respectively; V - type amylose - hexano] complexes were prepared. Obtained V - type amylose-hexanol complexes were characterized with scanning electron microscopy, X - ray diffraction, differential scanning calorimeter, Fourier transform infrared spectrophotometer. Infrared spectrum of obtained V - type amylose - hexanol complexes were measured qualitatively to determine the certain alcohol in V -type complexes ;further application of principal component analysis （PCA） for analysis of infrared absorption spectra. The results showed that using the preparation of water and alcohol solvents, obtained V - type amy]ose - hexanol complexes were hydrates and anhydrous crystal. Hydrate crystal＇s particles adhesion were serious, the particle diameter of anhydrous crystalline was 0.5 - 1 μm, and the crystallinity of both were above 70%. Hydrates and anhydrous crystal＇s melting temperature of V - type amylose-hexanol complexes were almost the same, obtained the ligand content of hydrates and anhydrous crystal of Vhexanol were 9.79% and 4.3%.
出处
《中国粮油学报》
EI
CAS
CSCD
北大核心
2012年第3期24-28,共5页
Journal of the Chinese Cereals and Oils Association
基金
国家自然科学基金项目(21076201)
河南省重点科技攻关项目(102102110103)
关键词
V型直链淀粉-正己醇复合物
结晶结构
制备
V - type amylose - hexanol complex, crystalline structure, preparation
