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Register a new userFractionation of whey protein using novel membrane filtration process
تجزئة بروتينات المصل باستعمال أغشية ترشيح جديدة
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أنطون طيفور( باحث )
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حصل حديثًا تطور في صناعة أغشية الترشيح مما يسمح بإمكانيات جديدة لفصل البروتينات من المصل على نطاق واسع و بتكاليف منخفضة ، فبالترشيح الدقيق بأغشية من السيراميك أقطار مساماتها 5.0 تم الحصول على رشاحة تحتوي ميكرونًا لمصل الجبن بعد تعديل رقم حموضته إلى0.1 = pH بصورة أساسية على الألفالاكتالبومين و البيتالاكتوغلوبلين و حجز البروتينات ذات الأوزان الجزيئية العالية مثل غلوبيولينات المناعة، ألبومين المصل البقري و اللاكتوفيرين و توصلنا لاحقًا إلى زيادة نسبة الالفالاكتاليومين بالنسبة إلى البيتالاكتوغلوبلين في رشاحة الترشيح الدقيق و ذلك بالترشيح فوق العالي لهذه الرشاحة بأغشية من السيراميك ذات نقاط قطع جزيئيية مختلفة.
Recent advances in membrane filtration technology provided new opportunities for large scale low – cost protein fractionation from whey . Exposure of whey to a pH of 5.0 prior to micro filtration using a 0.1 μm ceramic membrane led to optimised retention of higher molecular weight proteins immunoglobulin, bovine serum albumin and lactoferrin. The resulting permeate contained a protein fraction enriched in Alfa – lactalbumin and Beta – lactoglobulin. Enrichment of Alfa –lactalbumin relative to Beta –lactoglobulin was accomplished using new UF ceramic membranes with different molecular weight cut – off.
References used
Donnelly W. J., Mehra R.. (1990). “Fractination of milk proteins” biochem. Soc. Trans. 18 (2) 1238
ElgarP., Novis C. S., Ayers J. S, Pitchard M. Otter D. E., PalmanoK. P. (2000). Simultaneous separation and quantification of the major bovine whey proteins including proteose peptone and caseinommacropeptide by reversed phase high performance liquid chromatography on polystrenedivinylbenezene. J. Chro. 878:183-196
Hurwitz M. F., Branthy J. S. (2000). “Shear separation : a promising method for protein fractionation.“ Lait (80) : 121 – 127
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