کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
19482 43069 2009 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Improvement of arabinoxylan isolation from barley husks
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی بیو مهندسی (مهندسی زیستی)
پیش نمایش صفحه اول مقاله
Improvement of arabinoxylan isolation from barley husks
چکیده انگلیسی

A method of extracting arabinoxylan from barley husks has previously been developed, but was found to suffer from three problems, namely: starch was dispersed in the aqueous phase during steam pretreatment, the yield of extracted arabinoxylan with high molecular mass was low in the steam pretreatment step, and there was high filtration resistance in the clarification step. This paper presents possible solutions to these problems. Starch was removed prior to steam pretreatment by boiling the husks in water for 1 h. This treatment decreased the content of glucan in the aqueous phase after steam pretreatment by 75%. The yield of arabinoxylan with a molecular mass greater than 5 kDa was increased from 5% to 25% by using alkaline impregnation (1 wt.% NaOH). A vibrating shear-enhanced microfiltration unit was proven to be an alternative method to traditional filtration for clarification of the aqueous phase.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Food and Bioproducts Processing - Volume 87, Issue 3, September 2009, Pages 228–233
نویسندگان
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