کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
679743 1459954 2015 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Thermophilic and cellulolytic consortium isolated from composting plants improves anaerobic digestion of cellulosic biomass: Toward a microbial resource management approach
ترجمه فارسی عنوان
کنسرسیوم ترموفیلی و سلولولیتیک جدا شده از گیاهان کمپوست، هضم بی هوازی از توده زیستی سلولز را بهبود می بخشد: به سوی یک روش مدیریت منابع میکربی
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی تکنولوژی و شیمی فرآیندی
چکیده انگلیسی


• Efficient anaerobic, thermophilic and cellulolytic consortium was isolated from compost.
• Consortium improves anaerobic digestion of cellulosic substrates.
• Main microbial strains are strictly anaerobic and belong to Clostridia class.
• Despite weak richness and evenness, consortium adapts to pH evolution.

A cellulolytic consortium was isolated from a composting plant in order to boost the initial hydrolysis step encountered in anaerobic digestion. Improvement of the cellulose degradation, as well as biogas production, was observed for the cultures inoculated with the exogenous consortium. Metagenomics analyses pointed out a weak richness (related to the number of OTUs) of the exogenous consortium induced by the selective pressure (cellulose as sole carbon source) met during the initial isolation steps. Main microbial strains determined were strictly anaerobic and belong to the Clostridia class. During cellulose anaerobic degradation, pH drop induced a strong modification of the microbial population. Despite the fact that richness and evenness were very weak, the exogenous consortium was able to adapt and to maintain the cellulolytic degradation potential. This important result point out the fact that simplified microbial communities could be used in order to increase the robustness of mixed cultures involved in environmental biotechnology.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Bioresource Technology - Volume 189, August 2015, Pages 138–144
نویسندگان
, , , , , , , ,