کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
7785628 1500610 2016 34 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Elucidation of aqueous interactions between fish gelatin and sodium alginate
ترجمه فارسی عنوان
توضیح تعاملات آب بین ژلاتین ماهی و آلژینات سدیم
کلمات کلیدی
آلژینات، مجتمع ها، ژلاتین ماهی، فعل و انفعالات، بارش،
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی آلی
چکیده انگلیسی
The interactions between fish gelatin (FG) and sodium alginate (AL) in aqueous solutions were investigated at 25 °C by turbidimetric acid titration, zeta potentiometry, dynamic light scattering, methylene blue spectrophotometry, confocal microscopy, and three types of state diagram. FG formed solid-state insoluble complexes, i.e., precipitates, with AL, mainly by electrostatic attractions; the complex formation was significantly influenced by pH, FG-to-AL weight ratio, total biopolymer concentration (CT), and ionic strength. The insoluble complexes formed below a boundary pH (pHφ1) underwent continuous aggregation during acid titration, until immediate visible precipitation occurred at another boundary pH (pHp). The formation and aggregation of insoluble complexes were facilitated by increasing CT or adding small amounts of NaCl, but were greatly suppressed in the presence of high NaCl concentration. The insoluble complexes were formed reversibly depending on pH and transformed to a coupled gel network after 24 h incubation, depending on pH, CT, and ionic strength.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Carbohydrate Polymers - Volume 148, 5 September 2016, Pages 181-188
نویسندگان
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