现代食品科技2018，Vol.34Issue(7)：143-148,122,7.DOI:10.13982/j.mfst.1673-9078.2018.7.021
蔗糖溶液中新生磷酸钙对单宁酸的吸附性能研究
Adsorption Characteristics of Tannic Acid on Fresh Calcium Phosphate in Sucrose Solution
摘要
Abstract
The adsorption characteristics of tannic acid on fresh calcium phosphate in sucrose solution were discussed. Three kinetic models, including pseudo-first-order model, pseudo-second-order model and intraparticle diffusion model, were selected to model the adsorption processes. The adsorption of fresh calcium phosphate for tannic acid conformed to the pseudo-second order kinetic equation both in 10％ sucrose solution and in the solution without sucrose, which showed that the existence of sugar molecules did not influence the adsorption dynamics model of fresh calcium phosphate. Adsorption isotherm curves of tannic acid from different concentrations of sucrose solution on fresh calcium phosphate all conformed to the Langmuir model. Sucrose concentration had certain influence on the adsorption quantity of fresh calcium phosphate for tannic acid, besides, the adsorption quantity of that in the system containing no sugar was the largest. With the increase of sucrose solution concentration, the adsorption quantity of fresh calcium phosphate to tannic acid gradually reduced.关键词
新生磷酸钙/单宁酸/吸附动力学/吸附等温线Key words
fresh calcium phosphate/tannic acid/adsorption kinetics/adsorption isotherm引用本文复制引用
田玉红,杜丹丹,唐婷范,伍善广..蔗糖溶液中新生磷酸钙对单宁酸的吸附性能研究[J].现代食品科技,2018,34(7):143-148,122,7.基金项目
广西高校科学技术研究项目 (ZD2014077) （ZD2014077）
广西自然科学基金项目 (2016GXNSFBA380073) （2016GXNSFBA380073）
