刺槐豆胶/瓜尔豆胶复合体系的流变学性质研究  

Studies on the rheological properties of locust bean gum( LBG) and guar gum( GG) mixed system

作　　者：郭杰[1,2,3] 郭肖[4] 张朝阳[1,2,3] 王铖博 慕星星 张继[1,2,3] 

机构地区：[1]兰州职业技术学院,甘肃兰州730070 [2]西北师范大学生命科学学院,甘肃兰州730070 [3]甘肃省特色植物有效成分制品工程技术研究中心,甘肃兰州730070 [4]中国农业科学院兰州畜牧与兽药研究所,甘肃兰州730050

出　　处：《食品工业科技》2017年第14期40-45,共6页Science and Technology of Food Industry

基　　金：国家自然科学基金(51273162)

摘　　要：研究刺槐豆胶(LBG)/瓜尔豆胶(GG)复合体系的流变学性质,并采用流变学的模型进行拟合分析。实验表明:BG/GG复合体系为非牛顿流体,流动曲线服从Carreau模型,随着LBG比例的增大,其粘度越小,非牛顿性越不明显,触变性越低。LBG与GG复配对粘度的影响可产生协同作用,LBG/GG=1∶9时,复合体系粘度最大。在频率扫描范围内,LBG/GG复合体系同时具有粘性和弹性,随不同的角频率处理展现不同的动态粘弹性行为,LBG/GG=1∶9时,复合体系的动弹粘弹性最大。The rheological properties of locust bean gum（ LBG）/guar gum（ GG） mixed systems were studied,and the rheological models were used to analyze the flow behavior. The results showed that the LBG/GG composite systems exhibited non-Newtnian behavior which was found to be well correlated to the Carreau model. With the increase of the LBG ratio,the viscosity of the LBG/GG mixed systems were smaller and the non-Newtonian property became less obvious,the lower the thixotropy.The effect of LBG and GG on viscosity had synergistic effect,and when LBG/GG = 1 ∶ 9,the viscosity of the composite system was the largest. The LBG/GG composite systems with viscosity and elasticity exhibited different dynamic viscoelastic behaviors with different angular frequencies.The dynamic viscoelasticity of the composite system which LBG/GG =1∶ 9 was the largest.

关 键 词：刺槐豆胶 瓜尔豆胶 流动性 触变性 动态黏弹性 协同作用 

分 类 号：TS201.7[轻工技术与工程—食品科学]