کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7068948 | 1459894 | 2018 | 21 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Microbial communities involved in biogas production exhibit high resilience to heat shocks
ترجمه فارسی عنوان
جوامع میکروبی که در تولید بیوگاز حضور دارند، مقاومت زیادی به شوکهای گرما دارند
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
تکنولوژی و شیمی فرآیندی
چکیده انگلیسی
We report here the impact of heat-shock treatments (55 and 70â¯Â°C) on the biogas production within the acidification stage of a two-stage reactor system for anaerobic digestion and biomethanation of grass. The microbiome proved both taxonomically and functionally very robust, since heat shocks caused minor community shifts compared to the controls, and biogas yield was not decreased. The strongest impact on the microbial profile was observed with a combination of heat shock and low pH. Since no transient reduction of microbial diversity occured after the shock, biogas keyplayers, but also potential pathogens, survived the treatment. All along the experiment, the heat-resistant bacterial profile consisted mainly of Firmicutes, Bacteroidetes and Proteobacteria. Bacteroides and Acholeplasma were reduced after heat shocks. An increase was observed for Aminobacterium. Our results prove the stability to thermal stresses of the microbial communities involved in acidification, and the resilience in biogas production irrespectively of the thermal treatment.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Bioresource Technology - Volume 249, February 2018, Pages 1074-1079
Journal: Bioresource Technology - Volume 249, February 2018, Pages 1074-1079
نویسندگان
Christian Abendroth, Sarah Hahnke, Claudia Simeonov, Michael Klocke, Sonia Casani-Miravalls, Patrice Ramm, Christoph Bürger, Olaf Luschnig, Manuel Porcar,