کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7790627 | 1500643 | 2015 | 4 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Aminoacids as non-traditional plasticizers of maltodextrins fast-dissolving films
ترجمه فارسی عنوان
آمینو اسیدها به عنوان پلاستیسیته غیر سنتی از فیلم های سریع حلال مالتوکسیدین
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی آلی
چکیده انگلیسی
This study explored the effect of aminoacids as non-traditional plasticizers of maltodextrins fast dissolving films. 5% w/w glycine and proline decreased the glass transition temperature (Tg) of maltodextrins from 102.6 ± 2.0 °C to 73.1 ± 1.4 °C and 76.1 ± 0.7 °C, respectively; meanwhile the binary mixture made with lysine had a Tg value of 83.6 ± 2.2 °C. At the same time, all aminoacids increased the ÎCp values. The shift of the thermal data were due to profound effect on the hydrogen bonding as evidenced by ATR-FTIR spectra since the OH stretching and scissoring bands decreased of about 15-26 cmâ1. A linear relationship was found (R2 = 0.9334) between HOH scissoring wavenumbers and Tg values. The addition of glycine and proline resulted effective in reducing the elastic modulus (about 50%) and tensile strength (about three times) and, therefore, can be used to increase the film ductility.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Carbohydrate Polymers - Volume 115, 22 January 2015, Pages 613-616
Journal: Carbohydrate Polymers - Volume 115, 22 January 2015, Pages 613-616
نویسندگان
Francesca Selmin, Ilaria Franceschini, Irma E. Cupone, Paola Minghetti, Francesco Cilurzo,