Jiang Suwei, Hu Hailiang
Department of Biological and Environmental Engineering, Hefei University, Hefei 230601, Anhui, China.
Department of Blood Transfusion, The First Affiliated Hospital of Anhui Medical University, Anhui, 230022, China.
Heliyon. 2022 Jul 30;8(8):e10048. doi: 10.1016/j.heliyon.2022.e10048. eCollection 2022 Aug.
In this paper, we explore the adsorption potential of catechin (CT) loaded composite microspheres and provide a new micron scale carrier of functional factor. Chitosan (CS) modified rice porous starch (RPS/CS) was used as a CT adsorption carrier to prepare bioactive CT-loaded composite microspheres (CT@RPS/CS). The adsorption kinetics, storage characteristics, and biological activity maintenance of CT@RPS/CS were studied in an aqueous solution, and the sustained-release characteristics of CT@RPS/CS were studied during simulated gastrointestinal digestion. An aqueous solution further studied the removal characteristics of adsorbed heavy metal ion Pb. RPS/CS can significantly improve the ability to adsorb CT. RPS/CS can also significantly improve CT's storage stability, antioxidant stress, and slow-release characteristics, and the sustained release effect in gastric and intestinal juice. CT@RPS/CS can be removed Pb by adsorbing in the solution, and their adsorption was physical adsorption and chemisorption, but the primary interaction is chemisorption. CT@RPS/CS can be used as a micron carrier of new food functional factors, which has potential space for improving and expanding the functional characteristics of its loaded functional factors and the endowing of new functions.
在本文中，我们探究了负载儿茶素（CT）的复合微球的吸附潜力，并提供了一种新型的微米级功能因子载体。以壳聚糖（CS）改性的大米多孔淀粉（RPS/CS）作为CT吸附载体，制备了负载生物活性CT的复合微球（CT@RPS/CS）。研究了CT@RPS/CS在水溶液中的吸附动力学、储存特性和生物活性维持情况，并研究了其在模拟胃肠消化过程中的缓释特性。通过水溶液进一步研究了吸附重金属离子Pb的去除特性。RPS/CS能显著提高对CT的吸附能力。RPS/CS还能显著提高CT的储存稳定性、抗氧化应激能力和缓释特性，以及在胃肠液中的缓释效果。CT@RPS/CS能通过吸附溶液中的Pb将其去除，其吸附为物理吸附和化学吸附，但主要作用是化学吸附。CT@RPS/CS可作为新型食品功能因子的微米级载体，在改善和扩展其负载功能因子的功能特性以及赋予新功能方面具有潜在空间。
