Preparation and Characterization of Debranched-Starch/Phosphatidylcholine Inclusion Complexes

被引：73
作者：
Cheng, Weiwei [1 ]
Luo, Zhigang [1 ]
Li, Lin [1 ]
Fu, Xiong [1 ]
机构：
[1] S China Univ Technol, Coll Light Ind & Food Sci, Carbohydrate Lab, Guangzhou 510640, Peoples R China
来源：
JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY | 2015年 / 63卷 / 02期
基金：
中国国家自然科学基金;
关键词：
debranched-starch; phosphatidylcholine; complexes; preparation; SOLID-STATE NMR; CONTROLLED-RELEASE; AMYLOSE COMPLEXES; STRUCTURAL-CHANGES; STARCH GRANULES; AROMA COMPOUNDS; FATTY-ACIDS; V-AMYLOSE; PHOSPHATIDYLCHOLINE; CONFORMATION;
D O I：
10.1021/jf504133c
中图分类号：
S [农业科学];
学科分类号：
09 ;
摘要：
In this study, debranched-starch/phosphatidylcholine inclusion complexes were prepared. The effect of reaction parameters such as reaction temperature, reaction time, and addition amount of phosphatidylcholine on the phosphatidylcholine payload and inclusion rate was investigated. The phosphatidylcholine payload and inclusion rate prepared under the optimal conditions were 106 mg/g and 84.8%, respectively. The formation of debranched-starch/phosphatidylcholine inclusion complexes was confirmed by the results of XRD and FT-IR. Furthermore, the molecular, cluster, and fractal structures of the complexes were investigated using C-13 CP/MAS NMR and SAXS. The results indicated that the inclusion complexes were formed by hydrophobic interactions between alkyl chain of phosphatidylcholine and debranched-starch helix cavity. The complexes possessed a mass fractal structure, and a semicrystalline structure with a Bragg distance of 19.04 nm formed. After complexation, the stability of phosphatidylcholine was significantly improved, and phosphatidylcholine of the complexes can be gradually released with pancreatin treatment. This study revealed that debranched-starch can be used as an effective carrier of phosphatidylcholine for the purpose of improving its stability.
引用
收藏
页码：634 / 641
页数：8
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