کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
6402684 | 1330889 | 2014 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Technofunctional properties of a brewers' spent grain protein-enriched isolate and its associated enzymatic hydrolysates
ترجمه فارسی عنوان
خصوصیات تکنولوژیک یک جدایه ی غنی از پروتئین غلیظ شده دانه ای و هیدرولیز آنزیمی مرتبط با آن
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موضوعات مرتبط
علوم زیستی و بیوفناوری
علوم کشاورزی و بیولوژیک
دانش تغذیه
چکیده انگلیسی
The Nitrogen solubility, turbidity, emulsion and foaming properties, and the heat stability of a brewers' spent grain protein-enriched isolate (BSG-PI) was studied between pH 2.0-12.0. The effect of enzymatic hydrolysis using Alcalase, Corolase PP, Flavourzyme and Promod 144MG on these properties was also determined. BSG-PI demonstrated low solubility below pH 6.0, however, hydrolysis with all enzymes significantly increased BSG-PI solubility between pH 2.0-12.0. Flavourzyme, Corolase PP and Promod 144MG hydrolysates displayed an improved emulsion activity index (EAI) with an EAI of 466.69 m2gâ1 obtained for the Flavourzyme hydrolysates at pH 9.0. Improved foam expansion (FE) was observed above pH 9.0 in all samples while hydrolysis significantly reduced foam drainage stability (FS) of BSG-PI. BSG-PI was highly heat stable at 140 °C above pH 6.0 even after >300 min heating. Hydrolysis of BSG-PI resulted in increased turbidity when aqueous suspensions were stored overnight at 4 or 20 °C. The results demonstrate the potential of the alkaline extracted BSG-PI and its associated hydrolysates as a cereal derived source of technofunctional ingredients for the food industry.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: LWT - Food Science and Technology - Volume 59, Issue 2, Part 1, December 2014, Pages 1061-1067
Journal: LWT - Food Science and Technology - Volume 59, Issue 2, Part 1, December 2014, Pages 1061-1067
نویسندگان
Alan Connolly, Charles O. Piggott, Richard J. FitzGerald,