کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7783953 | 1500574 | 2018 | 18 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Influence of hydrothermal treatment on the structural modification of spent grain specific carbohydrates and the formation of degradation products using model compounds
ترجمه فارسی عنوان
تأثیر درمان هیدروترمال بر تغییرات ساختاری کربوهیدراتهای خاص دانه ذخیره شده و تشکیل محصولات تخریب با استفاده از ترکیبات مدل
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کلمات کلیدی
number-average molar massMALLSHMFLHWBSGAF4arabinoxylan5-Hydroxymethylfurfural - 5-هیدروکسی متیل پورفورالβ-glucan - β-گلوکانLiquid hot water - آب گرم مایعAsymmetrical flow field-flow fractionation - تقسیم بندی میدان جریان جریان نامتقارنMolar mass - توده مولارweight-average molar mass - توده مولی متوسط وزنBrewer’s spent grain - دانه خرگوش شیرین استdegree of polymerization - درجه پلیمریزاسیونHydrothermal treatment - درمان هیدروترمالRefractive index - ضریب شکستmulti-angle laser light scattering - پراکندگی نور لیزر چند زاویهPolysaccharides - پلیساکاریدها
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی آلی
چکیده انگلیسی
Brewer's spent grain (BSG) constitutes various valuable carbohydrates that may contribute to a healthy diet. These components may be obtained from BSG via hydrothermal treatment (HT), a procedure for dissolving water-inextricable carbohydrates. The objective of this study was to investigate HT as an environmentally friendly technology for extracting high-molecular-weight fiber with proven beneficial effects on human health. Cellulose, β-glucan, and arabinoxylan (AX) served as model substances and were subjected to auto-hydrolysis at different temperatures and reaction times. The results were evaluated in terms of structural and chemical characteristics. When the treatment temperature was increased, the original weight-average molar mass of AX (370â¯kDa) and β-glucan (248â¯kDa) decreased gradually (<10â¯kDa), and the molar mass distribution narrowed. Further investigations focused on the heat-induced formation and elimination of monosaccharides and undesirable by-products. The concentrations of by-products were successfully described by kinetic models that can be used to optimize the hydrolysis process.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Carbohydrate Polymers - Volume 184, 15 March 2018, Pages 315-322
Journal: Carbohydrate Polymers - Volume 184, 15 March 2018, Pages 315-322
نویسندگان
J. Steiner, K. Franke, M. KieÃling, S. Fischer, S. Töpfl, V. Heinz, T. Becker,