Welcome to China Surfactant Detergent & Cosmetics, Today is

China Surfactant Detergent & Cosmetics ›› 2018, Vol. 48 ›› Issue (2): 82-87.doi: 10.13218/j.cnki.csdc.2018.02.005

• Development and application • Previous Articles     Next Articles

Preparation and property of corn gluten arabinoxylan p-coumarate

LI Yan-li, LUO Zheng-zhe, HE Tong, YANG Cheng   

  1. School of Chemical & Material Engineering,Jiangnan University,Wuxi,Jiangsu 214122,China
  • Received:2017-09-23 Published:2019-03-21

Abstract: By modifying water-soluble corn gluten arabinoxylan (CAX) to make CAX antioxidant.CAX was dissolved in DMA/LiCl system,took triethylamine as an acid binding agent,esterification with coumaryl chloride of this solution was realized,and arabinoxylan p-coumarate (p-CA-CAX) was obtained.The structure was analyzed by IR and NMR.Results show that p-coumaric acid (p-CA) is connected to CAX in the form of ester bond.High performance liquid chromatography (HPLC) was used to confirm the degree of substitution (DS) of p-CA.When the molar ratio of p-CA and glucoside bonds of CAX is 1∶5,1∶4,1∶3,1∶2 and 1∶1,respectively,the DS is 0.38,0.51,0.63 0.83 and 0.94,correspondingly.The molecular weights of p-CA-CAX of different DS were determined by gel permeation chromatography.The molecular weights of p-CA-CAX-0.38,p-CA-CAX-0.51 and p-CA-CAX-0.63 are 3.52×105,3.85×105 and 3.93×105,respectively.Determination of lipid peroxides and oxygen radical absorbance capacity (ORAC) shows that p-CA-CAX has good antioxidant activity and the higher the content of p-CA,the better the antioxidant activity of p-CA-CAX.

Key words: arabinoxylan, p-coumaric acid, antioxidant activity, modification, cosmetics

CLC Number: 

  • TQ658