Bioresource Technology 255 (2018) 29–38 Contents lists available at ScienceDirect Bioresource Technology journal homepage: www.elsevier.com/locate/biortech Changes in spectroscopic signatures in soluble microbial products of activated sludge under diﬀerent osmotic stress conditions Tahir Maqbool, Jinwoo Cho, Jin Hur Department of Environment and Energy, Sejong University, Seoul 05006, South Korea GR APHICAL A BSTRACT ARTICLE I NFO ABSTRACT Keywords: Spectroscopic techniques were used to examine the subtle changes in soluble microbial products (SMP) of batch EEM-PARAFAC activated sludge bioreactors working at diﬀerent salinities (i.e., 0%, 1%, 3%, and 5% NaCl). The changes in Dissolved organic matter diﬀerent ﬂuorescent constituent were tracked by excitation-emission matrix combined with parallel factor Oxygen uptake rate analysis (EEM-PARAFAC), and the sequential production was further identiﬁed by two-dimensional correlation Soluble microbial products spectroscopy (2D-COS). Greater enrichment of tryptophan-like component and large-sized biopolymer were Saline wastewater found in SMP for higher saline bioreactors, suggesting the SMP sources from bound extracellular polymeric Two-dimensional correlation spectroscopy substances and excreted intercellular constituents. 2D-COS revealed the opposite sequences of the ﬂuorescence changes in SMP between the low and the high saline bioreactors, following the order of “tyrosine-like > tryptophan-like > humic-like ﬂuorescence” for the latter. This study clariﬁed the dominant mechanisms in-
Bioresource Technology – Elsevier
Published: May 1, 2018
It’s your single place to instantly
discover and read the research
that matters to you.
Enjoy affordable access to
over 18 million articles from more than
15,000 peer-reviewed journals.
All for just $49/month
Query the DeepDyve database, plus search all of PubMed and Google Scholar seamlessly
Save any article or search result from DeepDyve, PubMed, and Google Scholar... all in one place.
Get unlimited, online access to over 18 million full-text articles from more than 15,000 scientific journals.
Read from thousands of the leading scholarly journals from SpringerNature, Elsevier, Wiley-Blackwell, Oxford University Press and more.
All the latest content is available, no embargo periods.
“Hi guys, I cannot tell you how much I love this resource. Incredible. I really believe you've hit the nail on the head with this site in regards to solving the research-purchase issue.”Daniel C.
“Whoa! It’s like Spotify but for academic articles.”@Phil_Robichaud
“I must say, @deepdyve is a fabulous solution to the independent researcher's problem of #access to #information.”@deepthiw
“My last article couldn't be possible without the platform @deepdyve that makes journal papers cheaper.”@JoseServera