کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5512506 1540225 2017 33 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
The use of sugar beet pulp lignin for the production of vanillin
ترجمه فارسی عنوان
استفاده از لیگنین پالپ چغندر قند برای تولید وانیلین
کلمات کلیدی
اکسیداسیون لیگنین، خمیر چغندر قند، وانیلین،
موضوعات مرتبط
علوم زیستی و بیوفناوری بیوشیمی، ژنتیک و زیست شناسی مولکولی زیست شیمی
چکیده انگلیسی
The objectives of this work is to produce vanillin from sugar beet pulp by lignin oxidation and evaluate the effect of process parameters (temperature, partial pressure of oxygen, reaction time, CuSO4 as a catalyst) on the yield of vanillin. Purification and separation of vanillin from pressurized extract was carried out by organic solvent and crystallization. HPLC, FT-IR, H NMR, GC/MS and DSC methods were performed to approve the vanillin crystal. Results showed that production of vanillin was significantly affected by four parameters, and an optimal conditions for production of vanillin was found 4.3 bar for an oxygen partial pressure under a temperature of 156 °C and duration of time 30 min without CuSO4, corresponding to 1439.3 mg/100 g vanillin. Thermal property of syntesis vanillin was coincide to DSC pure vanillin curve but there were differences in ΔH°f and ΔHc.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Biological Macromolecules - Volume 94, Part A, January 2017, Pages 345-354
نویسندگان
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