摘要
Trimethylamine(TMA),which is known to severely affect consumer acceptance and application,is the main compound of sea cucumber intestinal peptides.Herein,different V-type crystalline starches(V_(6a/h),V_(7a/h),V_(8a/h))were prepared using high amylose maize starch for the adsorption of TMA.After analyzing the structure of Vtype starches,the V_(8^(-))type starch had a smaller and more evenly dispersed particles with additional surface pores and cracks,and reduced relative crystallinity compared with V_(6^(-))and V_(7^(-))type starch.The relative crystallinity of V_(_(6a)^(-)),V_(6h^(-)),V_(7a^(-)),V_(7h^(-)),V_(8a^(-)),and V_(8h^(-))type starches was 59.1%,51.8%,42.7%,41.3%,40.4%,and 40.1%,respectively.Adsorption models for V-type starches and TMA helped to analyze the adsorption kinetics characteristics and investigate the effect of different V-type starches on adsorption.Moreover,its adsorption kinetics process agreed with pseudo-second-order kinetic model(R^(2)>0.96).Note that different V-type starches demonstrate good adsorption effects on TMA,and the removal rate is as follows:V_(8h)>V_(8a)>V_(7h)>V_(7a)>V_(6h)>V_(6a).Herein,we used environmental protection and food-grade V-type starches to effectively adsorb TMA and ensure a theoretical foundation for enhancing the flavor and quality of functional seafoods.
基金
the financial support received from National Natural Science Foundation of China(32302141/32272266)
National Key R&D Program of China(2021YFD210020202/2021YFD210020404)
Xiamen Science and Technology Project(3502Z20226018).
