کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
6375372 1624816 2016 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
β-cyclodextrin assisted two-stage foam fractionation of bromelain from the crude extract of pineapple peels
موضوعات مرتبط
علوم زیستی و بیوفناوری علوم کشاورزی و بیولوژیک علوم زراعت و اصلاح نباتات
پیش نمایش صفحه اول مقاله
β-cyclodextrin assisted two-stage foam fractionation of bromelain from the crude extract of pineapple peels
چکیده انگلیسی
For reducing the costs of separating bromelain from its crude extract, a two-stage foam fractionation technology with β-cyclodextrin as an activity protector was developed using the foam fractionation column with vertical sieve trays (VSTs). By studying the effects of VSTs, volumetric air flowrate, β-cyclodextrin concentration, aeration time and temperature, the two-stage foam fractionation technology were optimized. The results show that VSTs effectively improved the activity recovery by enhancing the adsorption of bromelain at the gas-liquid interface while β-cyclodextrin significantly reduced the activity loss induced by the gas-liquid interface. At β-cyclodextrin concentration 0.60 mg/mL, a high specific activity of 165.6 U/mg, 7.4 folds of that in the crude extract, was obtained with an activity recovery of 45.2% by using the optimized two-stage foam fractionation technology. Compared to those without β-cyclodextrin, activity recovery and specific activity obtained satisfactory relative increases of 34.1% and 110.7%, respectively.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Industrial Crops and Products - Volume 94, 30 December 2016, Pages 233-239
نویسندگان
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