基于Zeta电位法分析新生亚硫酸钙对蔗汁胶体的吸附特性

【目的】从Zeta电位的角度考察新生亚硫酸钙对蔗汁胶体的吸附规律,为适时监测和优化制糖澄清工艺提供新途径。【方法】通过模拟亚硫酸法制糖澄清工艺,探讨新生亚硫酸钙吸附蔗汁胶体过程中Zeta电位的变化规律及其与新生亚硫酸钙对蔗汁胶体吸附量（Qe）的相关性。【结果】随着p H和胶体浓度的升高,Zeta电位和新生亚硫酸钙对蔗汁胶体的Qe逐渐增大;随着Zeta电位的增大,新生亚硫酸钙对蔗汁胶体的Qe也逐渐增加。新生亚硫酸钙对胶体的吸附等温线采用Freundlich模型拟合时,其拟合参数R^2大于Langmuir模型的拟合参数R^2。【结论】新生亚硫酸钙对蔗汁胶体吸附特性更符合Freundlich等温吸附...

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Published in南方农业学报 Vol. 45; no. 10; pp. 1841 - 1845
Main Author 牛德宝 黎庆涛 李利军 卢家炯 任二芳 郑凤锦 梁肖 黄燕妮
Format Journal Article
LanguageChinese
Published 广西亚热带作物研究所,南宁,530001%广西大学轻工与食品工程学院,南宁,530004%广西科技大学生物与化学工程学院,广西柳州,545006%广西农业科学院,南宁,530007 2014
Subjects
Zeta电位
吸附量
新生亚硫酸钙
胶体
蔗汁
胶体
newly-generated calcium sulfite
adsorption capacity
Zeta potential
cane juice
Zeta电位
colloid
蔗汁
吸附量
新生亚硫酸钙
Online AccessGet full text
ISSN2095-1191
DOI10.3969/j:issn.2095-1191.2014.10.1841

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Summary:【目的】从Zeta电位的角度考察新生亚硫酸钙对蔗汁胶体的吸附规律,为适时监测和优化制糖澄清工艺提供新途径。【方法】通过模拟亚硫酸法制糖澄清工艺,探讨新生亚硫酸钙吸附蔗汁胶体过程中Zeta电位的变化规律及其与新生亚硫酸钙对蔗汁胶体吸附量（Qe）的相关性。【结果】随着p H和胶体浓度的升高,Zeta电位和新生亚硫酸钙对蔗汁胶体的Qe逐渐增大;随着Zeta电位的增大,新生亚硫酸钙对蔗汁胶体的Qe也逐渐增加。新生亚硫酸钙对胶体的吸附等温线采用Freundlich模型拟合时,其拟合参数R^2大于Langmuir模型的拟合参数R^2。【结论】新生亚硫酸钙对蔗汁胶体吸附特性更符合Freundlich等温吸附模型,且新生亚硫酸钙对蔗汁胶体的Qe与其Zeta电位呈正相关。
Bibliography:NIU De-bao, LI Qing-tao, LI Li-jun, LU Jia-jiong, REN Er-fang, ZHENG Feng-jin, LIANG Xiao, HUANG Yan-ni （1Guangxi Subtropical Crops Research Institute, Nanning 530001, China; 2Institute of Light lndustry and Food Engineering, Guangxi University, Nanning 530004, China; 3College of Biological and Chemical Engineering, Guangxi University of Science and Technology, Liuzhou, Guangxi 545006, China; 4Guangxi Academy of Agricuhural Sciences, Nanning 530007, China）
45-1381/S
newly-generated calcium sulfite; cane juice; colloid; adsorption capacity; Zeta potential
Objective 】Based on Zeta potential, the adsorption law of colloid in cane juice on newly-generated calcium sulfite was investigated, in order to provide new ways for timely monitoring and optimizing sugaring clarification technology. 【Methods】By means of stimulating sulfurous acid sugar clarification technology, the change law of Zeta potential in the process of newly-generated calcium sulfite adsorbing colloid in cane juice was investigated, and the correlation
ISSN:2095-1191
DOI:10.3969/j:issn.2095-1191.2014.10.1841