کد مقاله کد نشریه سال انتشار مقاله انگلیسی ترجمه فارسی نسخه تمام متن
6488398 1416462 2018 9 صفحه PDF سفارش دهید دانلود رایگان
عنوان انگلیسی مقاله ISI
Fabrication and characterization of binary composite nanoparticles between zein and shellac by anti-solvent co-precipitation
ترجمه فارسی عنوان
ساخت و مشخص نمودن نانوذرات کامپوزیت دوتایی بین زین و شلاک با استفاده از روش ضد حلال
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کلمات کلیدی
زین، شلاک، نانوذرات کامپوزیت، اثر متقابل، تعیین مشخصات، مخلوط ضد حلال،
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی بیو مهندسی (مهندسی زیستی)
چکیده انگلیسی
The anti-solvent co-precipitation method was applied to fabricate zein (Z) and shellac (S) composite nanoparticles with different mass ratios (Z:S, 50:1, 10:1, 5:1, 2.5:1, 1:1, 1:1.5 and 1:2.5) at pH 8.0. Measurement of particle size and turbidity, in combination with analyses of Fourier transform infrared spectroscopy (FTIR), circular dichroism (CD), differential scanning calorimetry (DSC), fluorescence spectroscopy, and atomic force microscope (AFM) were performed to characterize Z-S composite nanoparticles. Results showed that hydrogen bonding and hydrophobic attraction were involved in the interactions between zein and shellac, leading to the changes in secondary structure and thermal stability of zein. At low levels of shellac (Z:S, from 50:1 to 2.5:1), a compact structure of Z-S composite nanoparticles was formed, which had smaller particle sizes, higher turbidity value and better thermal stability. At high levels of shellac (Z:S, from 2.5:1 to 1:2.5), a cross-linked structure of Z-S composite nanoparticles was generated, which exhibited larger particle sizes, lower turbidity value, and poorer thermal stability. The potential mechanism of a two-step process was proposed to explain the formation of Z-S composite nanoparticles. Findings in the present work will help further understand the interaction between alcohol-soluble biopolymers (e.g. zein and shellac) and provide a new insight into the development of potential carriers for bioactive compounds.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Food and Bioproducts Processing - Volume 107, January 2018, Pages 88-96
نویسندگان
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