Viscous-flow properties and viscosity-average molecular mass of orange peel pectin
The viscous-flow properties of pectin from the residue of orange peel after extraction of essential oil and flavonoid were studied and the viscosity-average molecular mass (Mv, ave) of this kind of pectin was determined. Experimental results show that Arrhenius viscous-flow equation can be applied to describing the effect of temperature on viscosity of this kind of orange peel pectin solutions with the average viscous-flow activation energy being 17.91 kJ/moi (depending on the concentration). Neither power equation, η= K1cA1, nor exponential equation, η=K2exp(A2c) can describe the effect of concentration on viscosity of this kind of orange peel pectin solutions well. However, it seems that exponential equation model is more suitable to describe their relation due to its higher linear correlation coefficient. Schulz-Blaschke equation can be used to calculate the intrinsic viscosity of this kind of orange peel pectin. The Mv.ave, of the orange peel pectin is 1.65×105 g/mol.
pectin viscous-flow properties viscosity-average molecular mass orange peel
ZHOU Jin-hua(周尽花) WU Yu-xiong(吴宇雄) SHEN Zhi-qiang(沈志强)
Science School, Central South University of Forestry and Technology, Changsha 410004, China
国际会议
长沙
英文
520-524
2008-09-28（万方平台首次上网日期，不代表论文的发表时间）