کد مقاله کد نشریه سال انتشار مقاله انگلیسی ترجمه فارسی نسخه تمام متن
5132620 1378816 2018 6 صفحه PDF سفارش دهید دانلود کنید
عنوان انگلیسی مقاله
Stabilization of alpha-lipoic acid by complex formation with octenylsuccinylated high amylose starch
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی آنالیزی یا شیمی تجزیه
پیش نمایش صفحه اول مقاله
Stabilization of alpha-lipoic acid by complex formation with octenylsuccinylated high amylose starch
چکیده انگلیسی


- Thermal and oxidation stability of ALA in starch dispersions was compared.
- Octenylsuccinylated high amylose starch (OS) was most effective in protecting ALA.
- Amylose complex formation contributed to stabilization and slow release of ALA.
- Amphiphilic nature of OS was responsible for the stabilizing ALA.

The thermal and oxidative stability of alpha-lipoic acid (ALA) in aqueous dispersions containing beta-cyclodextrin (CD), native high amylose (HA) and octenylsuccinylated high amylose (OS) starches (0.1% ALA and 1.0% CD or starch solids) were compared. Both native and modified starches increased the stability of ALA against thermal degradation and oxidation at higher degrees than CD. The OS was more effective in stabilizing ALA than HA. The ALA loss in the dispersions occurred mainly in the supernatant, suggesting that the complex formation of ALA with amylose played a key role in the stabilization. In an in vitro digestion test, the release of ALA from OS dispersion was less than that of HA dispersion, indicating that ALA complexed with OS amylose was most stable against digestion. The octenylsuccinylated high amylose starch was an effective protecting agent for ALA in aqueous media, as well as a delivery carrier for ALA in digestive tract.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Food Chemistry - Volume 242, 1 March 2018, Pages 389-394
نویسندگان
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