کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
593833 1453957 2013 9 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Foam and interfacial properties of Tween 20–bovine serum albumin systems
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی شیمی کلوئیدی و سطحی
پیش نمایش صفحه اول مقاله
Foam and interfacial properties of Tween 20–bovine serum albumin systems
چکیده انگلیسی

The foam properties of Tween 20 and BSA systems in Tris–HCl buffer solution were investigated by nitrogen-blowing method on a Foamscan. The foamability of Tween 20/BSA systems is obviously better than that of individual BSA system. The foams stabilized by BSA drained slower than Tween 20 systems with or without BSA. The foam stability of Tween 20 systems is enhanced by an addition of BSA. The optimal ratio of Tween 20 to BSA is determined for the most stable foams. Surface dilational rheological results indicate surface elasticity dominates the adsorbed layer and it is increased in the presence of BSA. The variation of surface elasticity accords with that of foam stability with an increase of Tween 20 concentration. It can be concluded surface elasticity dominates the corresponding foam stability.

The formation of gel-like network at the air–water surface distinctly improves the film stability.Figure optionsDownload as PowerPoint slideHighlights
► Tween 20–BSA systems have better foamability and foam stability.
► The optimal ratio of Tween 20 to BSA is determined for stable foams.
► Surface elasticity dominates corresponding foam stability.
► Foam stabilization mechanism relies on gel-like networks at air–gas interface.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Colloids and Surfaces A: Physicochemical and Engineering Aspects - Volume 416, 5 January 2013, Pages 23–31
نویسندگان
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