کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5147645 1497388 2016 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Fermentation characteristics of acid hydrolysates by different neutralizing agents
ترجمه فارسی عنوان
ویژگی های تخمیر آب هیدرولیز اسید توسط عوامل خنثی کننده مختلف
موضوعات مرتبط
مهندسی و علوم پایه شیمی الکتروشیمی
چکیده انگلیسی
Impact of cations in a fermentation broth by calcium, potassium, or sodium hydroxide was investigated. Acid hydrolysate from lignocellulosics is generally neutralized with calcium hydroxide, which is an insoluble salt (known as gypsum) produced in the process. Also, adsorption of monosaccharides on gypsum surface caused the loss of saccharide. To replace calcium hydroxide, potassium or sodium hydroxide which have high water solubility are used. More glucose was obtained by potassium hydroxide neutralization (glucose yield, 29.6 g) or sodium hydroxide neutralization (glucose yield, 38.9 g) than calcium hydroxide neutralization (glucose yield, 18.1 g) which shows less adsorption on the insoluble salt surface. In fermentation with three yeasts (Saccharomyces cerevisiae, Kluyveromyces marxianus, and Pichia stipitis), the sodium ion acts as an inhibitor and does not ferment the acid hydrolysate. However, acid hydroxide neutralized with potassium hydroxide was well fermented within 24 h with more ethanol production than that neutralized with calcium hydroxide.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Hydrogen Energy - Volume 41, Issue 37, 5 October 2016, Pages 16365-16372
نویسندگان
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