کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
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1387491 | 982601 | 2006 | 10 صفحه PDF | دانلود رایگان |
Amylose V complexes were prepared as semi-crystalline powders from aqueous solution with three different molecules: decanoic acid, hexanoic acid, and 1,5-decanolactone. Structure and stoichiometry of the resulting amylose complexes were investigated. As evidenced by Wide Angle X-ray Scattering (WAXS), the aroma compounds lead to three different types of V amylose structure similar to Vh, Vbutanol and Visopropanol, respectively. Extraction of aroma when included between helices, induced some polymorphic transitions towards a structure with smaller unit cells (i.e., from Visopropanol to Vbutanol and from Vbutanol to Vh). The location of the ligand within and/or between helices was deduced. Its content in amorphous and crystalline areas was also investigated using FT-IR spectroscopy, WAXS, and mild acid hydrolysis.
Journal: Carbohydrate Polymers - Volume 66, Issue 3, 2 November 2006, Pages 306–315