Fabrication, characterization and evaluation of myricetin adsorption onto starch nanoparticles
文献类型： 外文期刊
作者： Xia, Wen 1 ; Zheng, Bisheng 1 ; Li, Tong 4 ; Lian, Fengli 2 ; Lin, Yanyun 2 ; Liu, Ruihai 4 ;
作者机构： 1.South China Univ Technol, Sch Food Sci & Engn, Overseas Expertise Intro Ctr Discipline Innovat F, 111 Ctr, 381 Wushan Rd, Guangzhou 510641, Peoples R China
2.Chinese Acad Trop Agr Sci, Agr Prod Proc Res Inst, Key Lab Trop Crop Prod Proc, Minist Agr & Rural Affairs, Zhanjiang 524001, Guangdong, Peoples R China
3.Guangdong ERA Food & Life Hlth Res Inst, Guangzhou 510670, Peoples R China
4.Cornell Univ, Dept Food Sci, Ithaca, NY 14853 USA
关键词： Myricetin; Starch nanoparticles; Adsorption; Sustained release; Antioxidant activity
期刊名称：CARBOHYDRATE POLYMERS （ 影响因子：9.381； 五年影响因子：8.678 ）
ISSN： 0144-8617
年卷期： 2020 年 250 卷
页码：
收录情况： SCI
摘要： Myricetin (MY) is a natural antioxidant flavonoid with a variety of biological activities. However, extremely low water solubility, bioavailability, and easy degradation, restrict their application. Recently, increasing interest in starch nanoparticles as a new kind of biocompatible renewable polymer in applications like nanocarriers. This work was to fabricate MY adsorption onto tapioca starch nanoparticles (TSNPs) and evaluate their biological activities. The adsorption mechanism, loading amount, antioxidative capacity, and in vitro release of the loaded MY were also analyzed. The adsorption kinetics and adsorption equilibrium were best explained by a pseudo-second-order model and Freundlich isotherms, respectively. Based on the thermodynamic parameters, adsorption was found to be a spontaneous and exothermic process with a decrease in entropy. MY possessed a maximum equilibrium adsorption capacity of 453 +/- 8.07 mg/g. Low cytotoxicity were obtained as described by methylene blue assay, and a sustained release of loaded MY was observed in stimulated gastric (pH 2.0) and intestinal (pH 7.0) fluids. Additionally, the rate of clearance of DPPH free radicals was increased by the adsorption of MY onto TSNPs, which was confirmed by the lower value of 50 % inhibitory concentration (IC50).
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