کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
7586734 1492075 2017 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Digestibility and antigenicity of β-lactoglobulin as affected by heat, pH and applied shear
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی آنالیزی یا شیمی تجزیه
پیش نمایش صفحه اول مقاله
Digestibility and antigenicity of β-lactoglobulin as affected by heat, pH and applied shear
چکیده انگلیسی
Processing induced conformational changes can modulate digestibility of food allergens and thereby their antigenicity. Effect of different pH (3, 5, 7), temperature (room temperature, 120 °C) and shear (0 s−1, 1000 s−1) on simulated gastrointestinal digestibility of β-lg and post digestion antigenic characteristics have been studied. At all pH levels unheated β-lg showed resistance to peptic digestion with high antigenic value while it was fairly susceptible to pancreatin with moderate reduction in antigenicity. Heating at 120 °C significantly improved both peptic and pancreatic digestion attributed to structural alterations that resulted in much lower antigenicity; the level of reduction being pH dependant. The lowest antigenicity was recorded at pH 5. Shearing (1000 s−1) had a minor impact reducing digestibility and thereby enhancing antigenicity of unheated β-lg at pH 5 and 7 slightly; however in conjunction with heating (120 °C) it reduced antigenicity further irrespective of the pH. Overall, treatment at pH 5, 120 °C and 1000 s−1 could potentially reduce post digestion antigenicity of β-lg.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Food Chemistry - Volume 217, 15 February 2017, Pages 517-523
نویسندگان
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