Structure characteristics and rheological properties of acidic polysaccharide from boat-fruited sterculia seeds
Structure characteristics and rheological properties of acidic polysaccharide from boat-fruited sterculia seeds
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胖大海酸性多糖的结构特征及流变特性
DOI：
10.1016/j.carbpol.2012.01.035
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发表时间：
2012-04
影响因子：
11.2
通讯作者：
Jian Tang
中科院分区：
文献类型：
--
作者：
Yan Wu;Steve W. Cui;Jinhong Wu;Lianzhong Ai;Qi Wang;Jian Tang
An acidic polysaccharide (APS) was extracted from the boat-fruited sterculia seeds (Semen Sterculiae Lychnophorae). It consisted mainly of galacturonic acid (40.1%, w/w) along with rhamnose, arabinose, galactose, xylose and glucose as minor components, indicating a pectic polysaccharide which was confirmed by FT-IR spectra. The degree of esterification of APS determined by FT-IR method was 68%. The shear-thinning and viscoelastic behaviors of APS have been investigated by steady shear and small amplitude oscillatory experiments, respectively. Steady-shear rheological measurement in a range of shear rate (1–1000s−1) showed increase in pseudoplasticity (or non-Newtonian shear-thinning flow behavior) with the increase in APS concentration (1.0–10%, w/v). APS itself could not form a gel; however, thermal irreversible gels were obtained in the presence of sucrose at low pH (pH<3.5). The changes in storage modulus G′ and loss modulus G″ during heating and cooling cycles indicated that G′ was nearly reversible at temperature >30°C while G″ exhibited thermal hysteresis.
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影响因子：
8.8
作者：
Wu, Yan;Cui, Steve W.;Gu, Xiaohong
通讯作者：
Gu, Xiaohong
影响因子：
11.2
作者：
P. Somboonpanyakul;Q. Wang;W. Cui;S. Barbut;P. Jantawat
通讯作者：
P. Somboonpanyakul;Q. Wang;W. Cui;S. Barbut;P. Jantawat
DOI：
10.1201/9781420012873.ch9
发表时间：
2002-02
期刊：
--
影响因子：
--
作者：
Jordi Pag√°n;Qi Wang;John Shi
通讯作者：
Jordi Pag√°n;Qi Wang;John Shi
影响因子：
11.2
作者：
Wu, Yan;Cui, Steve W.;Gu, Xiaohong
通讯作者：
Gu, Xiaohong
DOI：
10.1016/0141-8130(80)90058-6
发表时间：
1980-10
影响因子：
8.2
作者：
E. Morris;M. Gidley;E. Murray;D. Powell;D. Rees
通讯作者：
E. Morris;M. Gidley;E. Murray;D. Powell;D. Rees