کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
7078538 1459984 2014 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Application of a novel enzymatic pretreatment using crude hydrolytic extracellular enzyme solution to microalgal biomass for dark fermentative hydrogen production
ترجمه فارسی عنوان
استفاده از یک پیش آزمون اولیه آنزیمی با استفاده از محلول آنزیم خارج سلولی هیدرولیتیکی خام به بیوماس میکروالگل برای تولید هیدروژن تخمیر تیره
کلمات کلیدی
کلرلا ولگاریس، زباله های مواد غذایی، محلول آنزیم خارج سلولی هیدرولیتیک خالص، سوبسترا،
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی تکنولوژی و شیمی فرآیندی
چکیده انگلیسی
In this study, a novel enzymatic pretreatment of Chlorella vulgaris for dark fermentative hydrogen production (DFHP) was performed using crude hydrolytic extracellular enzyme solution (CHEES) extracted from the H2 fermented effluent of food waste. It was found that the enzyme extracted at 52 h had the highest hydrolysis efficiency of microalgal biomass, resulting in the highest H2 yield of 43.1 mL H2/g dry cell weight along with shorter lag periods. Even though a high amount of VFAs was accumulated in CHEES, especially butyrate, the fermentative bacteria on the DFHP was not affected from product inhibition. It also appears that the presence of organic acids, especially lactate and acetate, contained in the CHEES facilitated enhancement of H2 production acted as a co-substrate. Therefore, all of the experimental results suggest that the enhancement of DFHP performance caused by CHEES has a dual role as the hydrolysis enhancer and the co-substrate supplier.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Bioresource Technology - Volume 159, May 2014, Pages 365-372
نویسندگان
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