Vaš brskalnik ne omogoča JavaScript!
JavaScript je nujen za pravilno delovanje teh spletnih strani. Omogočite JavaScript ali pa uporabite sodobnejši brskalnik.
Repozitorij Univerze v Ljubljani
Nacionalni portal odprte znanosti
Odprta znanost
DiKUL
slv
|
eng
Iskanje
Brskanje
Novo v RUL
Kaj je RUL
V številkah
Pomoč
Prijava
Podrobno
Lignin intermediates lead to phenyl acid formation and microbial community shifts in meso- and thermophilic batch reactors
ID
Prem, Eva Maria
(
Avtor
),
ID
Mutschlechner, Mira
(
Avtor
),
ID
Stres, Blaž
(
Avtor
),
ID
Illmer, Paul
(
Avtor
),
ID
Wagner, Andreas Otto
(
Avtor
)
PDF - Predstavitvena datoteka,
prenos
(2,96 MB)
MD5: 76261A5BA8E8E10CA00C991EA27AC12F
URL - Izvorni URL, za dostop obiščite
https://biotechnologyforbiofuels.biomedcentral.com/articles/10.1186/s13068-020-01855-0
Galerija slik
Izvleček
Background: Lignin intermediates resulting from lignocellulose degradation have been suspected to hinder anaerobic mineralisation of organic materials to biogas. Phenyl acids like phenylacetate (PAA) are early detectable intermediates during anaerobic digestion (AD) of aromatic compounds. Studying the phenyl acid formation dynamics and concomitant microbial community shifts can help to understand the microbial interdependencies during AD of aromatic compounds and may be beneficial to counteract disturbances. Results: The length of the aliphatic side chain and chemical structure of the benzene side group(s) had an influence on the methanogenic system. PAA, phenylpropionate (PPA), and phenylbutyrate (PBA) accumulations showed that the respective lignin intermediate was degraded but that there were metabolic restrictions as the phenyl acids were not effectively processed. Metagenomic analyses confirmed that mesophilic genera like Fastidiosipila or Syntrophomonas and thermophilic genera like Lactobacillus, Bacillus, Geobacillus, and Tissierella are associated with phenyl acid formation. Acetoclastic methanogenesis was prevalent in mesophilic samples at low and medium overload conditions, whereas Methanoculleus spp. dominated at high overload conditions when methane production was restricted. In medium carbon load reactors under thermophilic conditions, syntrophic acetate oxidation (SAO)-induced hydrogenotrophic methanogenesis was the most important process despite the fact that acetoclastic methanogenesis would thermodynamically be more favourable. As acetoclastic methanogens were restricted at medium and high overload conditions, syntrophic acetate oxidising bacteria and their hydrogenotrophic partners could step in for acetate consumption. Conclusions: PAA, PPA, and PBA were early indicators for upcoming process failures. Acetoclastic methanogens were one of the first microorganisms to be impaired by aromatic compounds, and shifts to syntrophic acetate oxidation coupled to hydrogenotrophic methanogenesis occurred in thermophilic reactors. Previously assumed associations of specific meso- and thermophilic genera with anaerobic phenyl acid formation could be confirmed.
Jezik:
Angleški jezik
Ključne besede:
bio-methane
,
phenyl acids
,
anaerobic digestion
,
lignin intermediates
,
amplicon sequencing
Vrsta gradiva:
Članek v reviji
Tipologija:
1.01 - Izvirni znanstveni članek
Organizacija:
BF - Biotehniška fakulteta
FGG - Fakulteta za gradbeništvo in geodezijo
Status publikacije:
Objavljeno
Različica publikacije:
Objavljena publikacija
Leto izida:
2021
Št. strani:
23 str.
Številčenje:
Vol. 14, art. 27
PID:
20.500.12556/RUL-127114
UDK:
591
ISSN pri članku:
1754-6834
DOI:
10.1186/s13068-020-01855-0
COBISS.SI-ID:
48398851
Datum objave v RUL:
18.05.2021
Število ogledov:
1406
Število prenosov:
154
Metapodatki:
Citiraj gradivo
Navadno besedilo
BibTeX
EndNote XML
EndNote/Refer
RIS
ABNT
ACM Ref
AMA
APA
Chicago 17th Author-Date
Harvard
IEEE
ISO 690
MLA
Vancouver
:
Kopiraj citat
Objavi na:
Gradivo je del revije
Naslov:
Biotechnology for biofuels
Skrajšan naslov:
Biotechnol. biofuels
Založnik:
Springer Nature
ISSN:
1754-6834
COBISS.SI-ID:
515780121
Licence
Licenca:
CC BY 4.0, Creative Commons Priznanje avtorstva 4.0 Mednarodna
Povezava:
http://creativecommons.org/licenses/by/4.0/deed.sl
Opis:
To je standardna licenca Creative Commons, ki daje uporabnikom največ možnosti za nadaljnjo uporabo dela, pri čemer morajo navesti avtorja.
Sekundarni jezik
Jezik:
Slovenski jezik
Ključne besede:
mikrobiologija
,
lignin
,
bioplin
,
fenilna kislina
Projekti
Financer:
FWF - Austrian Science Fund
Program financ.:
Einzelprojekte
Številka projekta:
P 29143
Naslov:
Phenylodigest
Financer:
Universität Innsbruck
Program financ.:
Publikationsfonds
Financer:
CEEPUS
Program financ.:
Freemover Grant
Financer:
Universität Innsbruck
Program financ.:
LFUI Guest Professorships
Podobna dela
Podobna dela v RUL:
Podobna dela v drugih slovenskih zbirkah:
Nazaj