چاپ صفحه |  صفحه نخست سامانه |  چکیده مقاله |  نویسندگان |  دانلود مقاله | دانشگاه علوم پزشکی تبریز |
| This study is concernedwith modification of high methoxy pectin (HMP) assisted by nitrogen AC glowdischarge plasma. Intrinsic viscosity of plasma treated pectin (PTP) was measured as primary index for structural changes in pectin molecules at different plasma conditions. The intrinsic viscosity of pectin increased within 7 min of exposure to plasma treatment and then remained constant. According to Fourier Transform Infrared Spectrometry (FT-IR) analysis, the intensity of carboxylate peaks increased in PTP samples due to de-esterification of pectin. Moreover, by decreasing the degree of esterification (DE) in PTP samples, the results of FT-IR were confirmed. Based on high performance size-exclusion chromatography (HPSEC) analysis, the molecular weight of PTP reduced. PTP gel had higher storage and loss modulus and shorter linear viscoelastic region. Moreover, X-ray diffraction (XRD) studies indicated an increase of crystallinity in PTP due to the formation of hydrogen bonds. Results revealed that nitrogen AC glowdischarge plasma had significant influence on physicochemical and functional properties of pectin. The result of this study showed AC glowdischarge plasma has promising potential towards modification of pectin. |
| نویسنده | نفر چندم مقاله |
|---|---|
| مهناز طبیبی اذر | دوم |
| هادی ولیزاده | ششم |
| مرجان قربانی | هفتم |
| مجتبی مومنی | اول |
| نام فایل | تاریخ درج فایل | اندازه فایل | دانلود |
|---|---|---|---|
| 1-s2.0-S0141813018320063-main (1).pdf | 1397/08/22 | 1637410 | دانلود |
