کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
7586283 1492047 2018 29 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Comparison of formation of visco-elastic masses and their properties between zeins and kafirins
ترجمه فارسی عنوان
مقایسه شکل گیری توده های ویسکوزیته و خواص آنها بین زین و کافیرین
کلمات کلیدی
کافیرین، زین، جرم ویسکو الاستیک، استیک اسید، رئوئولوژی،
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی آنالیزی یا شیمی تجزیه
چکیده انگلیسی
Zeins of differing sub-class composition much more readily formed visco-elastic masses in water or acetic acid solutions than equivalent kafirin preparations. Visco-elastic masses could be formed from both zein and kafirin preparations by coacervation from glacial acetic acid. Dissolving the prolamins in glacial acetic acid apparently enabled protonation and complete solvation. Stress-relaxation analysis of coacervated zein and kafirin visco-elastic masses showed they were initially soft. With storage, they became much firmer. Zein masses exhibited predominantly viscous flow properties, whereas kafirin masses were more elastic. The γ-sub-class is apparently necessary for the retention of visco-elastic mass softness with kafirin and zein, and for elastic recovery of kafirin. Generally, regardless of water or acetic acid treatment, all the zein preparations had similar FTIR spectra, with greater α-helical conformation, than the kafirin preparations which were also similar to each other. Kafirin visco-elastic masses have a much higher elastic character than zein masses.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Food Chemistry - Volume 245, 15 April 2018, Pages 178-188
نویسندگان
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