Volume 70, Issue 1-2 1700101
Research Article

Preparation and structural characterization of different amylose–flavor molecular inclusion complexes

Tao Feng

Corresponding Author

Tao Feng

School of Perfume and Aroma Technology, Shanghai Institute of Technology, Shanghai, P. R. China

Correspondence: Dr. Tao Feng, School of Perfume and Aroma Technology, Shanghai Institute of Technology, No.100 Hai Quan Road, Shanghai 201418, P. R. China

E-mail:[email protected]

Fax: +86-21-60873210

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Hui Wang

Hui Wang

School of Perfume and Aroma Technology, Shanghai Institute of Technology, Shanghai, P. R. China

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Ke Wang

Ke Wang

School of Perfume and Aroma Technology, Shanghai Institute of Technology, Shanghai, P. R. China

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Yi Liu

Yi Liu

School of Perfume and Aroma Technology, Shanghai Institute of Technology, Shanghai, P. R. China

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Zhiwei Rong

Zhiwei Rong

School of Perfume and Aroma Technology, Shanghai Institute of Technology, Shanghai, P. R. China

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Ran Ye

Ran Ye

Roha USA, St. Louis, MO, USA

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Haining Zhuang

Haining Zhuang

Institute of Edible Fungi, Shanghai Academy of Agricultural Sciences, National Engineering Research Center of Edible Fungi, Shanghai, P. R. China

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Zhimin Xu

Zhimin Xu

School of Nutrition and Food Sciences, Louisiana State University Agricultural Center, Baton Rouge, LA, USA

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Min Sun

Min Sun

School of Perfume and Aroma Technology, Shanghai Institute of Technology, Shanghai, P. R. China

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First published: 20 July 2017
Citations: 24

Abstract

Flavor microencapsulation has been widely used in foods, medicines, cosmetics, and other fields. The use of amylose-based complexes is receiving increasing attention because they are biodegradable, non-toxic, and biocompatible, and these complexes provide a new way to develop and impart flavors. In this study, with the aim of investigating the properties of amylose–flavor complexes, linear aliphatic alcohols (C6–C9) and the aromatic alcohol naphthol were used to prepare inclusion complexes by the sealed heating method in yields ranging from 45 to 50%. In addition, scanning electron microscopy (SEM), X-ray diffraction (XRD), differential scanning calorimetry (DSC), and thermogravimetric analysis (TGA) were utilized to investigate the structural characteristics of these inclusion complexes, and it was found that the amylose-n-heptanol inclusion complex was most stable. Furthermore, nuclear magnetic resonance (NMR) spectroscopy revealed that V-type crystals existed in the amylose–flavor complexes. Moreover, TGA showed that all amylose–flavor inclusion complexes have excellent thermal stability. The encapsulation efficiency of the complexes increased with decreasing chain length, but the encapsulation efficiency of the complexes with the aromatic alcohol naphthol was lower than that of the complexes with some linear alcohols. This indicated that the stereoscopic confirmation of α-naphthol may influence the complexes being formed.

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