期刊论文

Preparation and Antioxidant Activity of pH Responsive Microcapsules Loaded with Resveratrol

中文

食品科学

1002-6630

2019

40

20

54-59

10.7506/spkx1002-6630-20181022-236

“十三五”国家重点研发计划重点专项（2016YDF0600805）；

本校为第一机构

目的:制备并获得具有pH值响应和抗氧化活性的紫胶树脂铵盐(shellac resin ammonium salt,SRAS)/白藜芦醇(resveratrol,RES)微胶囊,提高RES的生物利用率。方法:SRAS为壁材,利用喷雾干燥技术对RES进行微胶囊化,获得SRAS/RES微胶囊,并利用扫描电镜、傅里叶变换红外光谱、差示扫描量热等技术对其性能进行表征,研究其抗氧化活性以及在不同pH值条件下的释放效果。结果:在配方中SRAS、RES和吐温80的用量分别为2、 0.278 g和0.5 g的条件下,制备的SRAS/RES微胶囊中RES的包埋率为82.70%,负载率为8.27%;SRAS/RES微胶囊为表面光滑的球体结构,热力学性质稳定,抗氧化能力高于未包埋前的RES,具有pH值响应性,其在...

Objective: Shellac resin ammonium salt (SRAS) was used to prepare the SRAS/resveratrol (RES) microcapsules with pH response and antioxidant activity in order to improve the bioavailability of RES. Methods: SRAS was used as wall material for RES microencapsulation by spraying drying, and the properties of SRAS/RES microcapsules were characterized by scanning electron microscopy (SEM), Fourier-transform infrared spectroscopy (FT-IR) and differential scanning calorimetry (DSC), and antioxidant activities and release behaviors under different pH conditions were studied as well. Results: The microe...