کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
641682 1457003 2013 4 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Separation and concentration of baicalin from Scutellaria Baicalensis Georgi extract by aqueous two-phase flotation
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی تصفیه و جداسازی
پیش نمایش صفحه اول مقاله
Separation and concentration of baicalin from Scutellaria Baicalensis Georgi extract by aqueous two-phase flotation
چکیده انگلیسی


• ATPF was applied for separating and concentrating baicalin from SBG.
• The separation parameters of ATPF were investigated in detail.
• The high separation efficiency and the high concentration coefficient were obtained.

An effective and environment-friendly method for separating and concentrating baicalin from Scutellaria Baicalensis Georgi (SBG) extract by aqueous two-phase flotation (ATPF) was established. Using an aqueous two-phase system of polyethylene glycol (PEG)/ammonium sulfate, the effects of varying solution pH, (NH4)2SO4 concentration in aqueous solution, PEG molecular weight, nitrogen flow rate, flotation time and initial volume of PEG phase were investigated in detail. Under the optimal conditions for ATPF, the established method was successfully applied to the real sample, and the separation efficiency was more than 90%, and the concentration coefficient was more than 27. Compared with solvent sublation (SS), liquid–liquid extraction (LLE) and aqueous two-phase extraction (ATPE), ATPF showed advantages of good separation efficiency, high concentration coefficient and low consumption of organic solvent. All experimental results indicate that ATPF is an effective pretreatment technique for the instrumental purification of baicalin from SBG.

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ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Separation and Purification Technology - Volume 116, 15 September 2013, Pages 454–457
نویسندگان
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