LinkedIn Groups: Join one … form one

"It is good to have an end to journey toward, but it is the journey that matters in the end." -- Ursula K. LeGuin
This will be my last post for a couple of weeks. I am going on vacation. Here is today’s contribution.

A LinkedIn feature that can help you connect with colleagues in your field of interest is Groups. Finding the right group to join can require some experimentation. Some groups seem to be purely commercial. Others are highly specific.

Here by way of example is a group I chose to join …

Heavy Oil
Owner: Nestor A Hernandez Estevez 340 members Share
This professional group is focused on networking and information sharing about the Heavy Oil industry: research, exploration, reservoir engineering, production, transport, refining, upgrading, marketing and so on.
The Resources of Heavy oil in the world are more than twice of those conventional light crude oil. Heavy oil is different, and as a result of that, many technologies and services used for conventional oil face limitations with these highly viscous oils.

Start by logging into your LinkedIn account. Click “Groups” at the top of the page. Then enter a keyword that might be associated with a group you would be interested in joining. Some keywords to try …

Petro
Refining
Catalysis
Hydrocarbon

Browse the resulting descriptions to pick out a group you would like to join, and click “Join.”

At some point, you might want to start your own group. Doing so can help you find colleagues researching a topic that is not yet covered by an existing group.

Anyone LinkedIn member can start a group. The tricky part is getting enough people to join the group to make it worth you while. You might start by inviting all the people you know to join the group. Then encourage them to invite people they know.

And be sure to invite me …

Invite me to be your LinkedIn colleague. Visit my LinkedIn profile at: www.linkedin.com/in/jeansteinhardtresearch

Review: Biotransformation of aromatic compounds from wastewaters containing N and/or S, by nitrification/denitrification

You know, sometimes, when they say you're ahead of your time, it's just a polite way of saying you have a real bad sense of timing. -- George McGovern

Sulfur is a problem at every stage of the hydrocarbon production cycle. Here is a recent review of the use of biotransformation to desulfurize wastewater containing nitrogen and/or sulfur.

I like reviews because they provide an overview of the various approaches taken to solve a particular problem. They also provide a wealth of information on articles and researchers that can help you in the search for a solution to your particular technical problem.

Biotransformation of aromatic compounds from wastewaters containing N and/or S, by nitrification/denitrification: a review
Journal Reviews in Environmental Science and Biotechnology
Issue Volume 8, Number 4 / December, 2009
Pages 325-342
Ricardo Beristain-Cardoso1, 2 , Anne-Claire Texier2, Elías Razo-Flores3, Ramón Méndez-Pampín1 and Jorge Gómez2
(1) Department of Chemical Engineering, University of Santiago de Compostela, Rua Lope Gómez de Marzoa s/n, 15782 Santiago de Compostela, Spain
(2) Departamento de Biotecnología, Universidad Autónoma Metropolitana-Iztapalapa, AP 55-535, 09340 Iztapalapa, DF, México
(3) División de Ciencias Ambientales, Instituto Potosíno de Investigación Científica y Tecnológica, Camino a la Presa San José No. 2055, Col. Lomas 4a. Sección, 78216 San Luis Potosí, SLP, México

Abstract This review presents progress made over the last decades in the understanding of the metabolic capabilities of nitrifying and denitrifying microorganisms for the biotransformation of nitrogen, sulfur, and carbon compounds present in wastewaters. There are nowadays still many discoveries to be made about the metabolism, phylogeny and ecological behavior of bacteria that play an important role in the nitrogen cycle. The interest of the scientific community in the biological nitrogen cycle is at present very high, because it can be linked to either sulfur or carbon cycles. The connection of biological cycles is of the utmost technological relevance as it has allowed the simultaneous elimination of reduced sulfur and phenolic compounds under nitrifying or denitrifying conditions. The environmental factors affecting the nitrification and denitrification biological processes are described in this review.
Source: http://www.springerlink.com/content/j9q0p66162g56l05/

Invite me to be a LinkedIn colleague. View my LinkedIn profile at: www.linkedin.com/in/jeansteinhardtresearch

Time Saver Tip: Hydrocarbon Engineering Newsletter

“If you don't have time to do it right you must have time to do it over.” -- Anonymous

Hydrocarbon Engineering’s articles talk about commercialized technologies designed to help the petroleum industry produce the products required by modern civilization. Whether you are involved in basic research or the commercialization of new approaches to desulfurization, it behooves you to keep abreast of the topics discussed in these articles.

The easiest way to learn of articles in HE – Hydrocarbon Engineering of interest to you is to subscribe to the HE newsletter. Just go to the HE site at http://www.energyglobal.com/ magazines. Follow the link to HE, and look for the sidebar inviting you to subscribe to the newsletter.

Each month, you will receive a table of contents of the current issue. You can quickly decide whether it is worth your time to find a copy of the magazine. By the way, HE is unusual in being unavailable in full text anywhere online. You, or your corporate library, must subscribe to the print edition in order to be able to read the full text.

Here is the table of contents for the January 2010 issue of Hydrocarbon Engineering.

THAI-D UP FOR THE THAI-ME BEING
David Hayes, Contributing Editor, examines the Thai petrochemical industry and its plans to double capacity.

RISING TO THE CO2 CHALLENGE: PART 2
Joris Mertens, KBC Process Technology, Ltd, the Netherlands, presents the second part in this series, discussing a greenhouse gas management strategy and tools for refineries.

MAXIMISING RETURN ON INVESTMENT
Michael B Simpson, ABB, Canada, looks at the return benefits of advanced process control for gasoline blending optimisation.

HAZARDOUS MATERIAL
Gordon Cope, Hydrocarbon Engineering Correspondent, reports on how biofuels are scrambling to meet regulated demand.

STAYING AHEAD WITH SOFTWARE
Hoffert Jean-Luc, Litwin, France, on behalf of Integraph, presents a case study where new software has been implemented to streamline modelling workflows.

ONLINE AND ON TRACK
Réjane Dastillung and Marc Loublier, Naphtachimie, France and B. Descales, J.R. Llinas, I. Cermelli and S. Destang, Ineos Technologies, France and D. Lambert, C. St Martin, M. Sanchez, B. Ribero and Z. Yu, Topnir Systems, France, explore steam cracker optimisation through online analysis and rigorous kinetic models.

CATALYST REVIEW
Hydrocarbon Engineering provides an overview of some of the most advanced catalyst technologies available within the hydrogen processing industry today.

OILSANDS DEMONSTRATION
Don G. J. Dutton, SNC-Lavalin Inc., Canada, and James Powell, Siemens AG, Canada, examine a successful oilsands application.

TAKING SMART CONTROL
Thomas Karte, Jörg Kiesbauer and Karl-Bernd Schärtner, SAMSON AG, Germany, examine methods of smart control for rotary actuators.

GETTING TO KNOW CCS
Robert Smyth, Grant Johnson and David Wilkinson, Costain Energy & Process, UK, present an overview of developments in carbon capture and storage.

HIGH IN PURITY
Walker Garrison, Valero Energy Corporation, USA and Chris Howell and Dave Christophersen, VWS Crown Solutions, USA, examine how optimised pretreatment ensures high purity water and improved efficiency in steam generation.

Let your friends and colleagues know about the Desulfurization Blog. Send them the link: http://www.desulf.blogspot.com/

Nanotech and Desulf

"Nanotechnology is the base technology of an industrial revolution in the 21st century. Those who control nanotechnology will lead the industry." -- Michiharu Nakamura, Executive VP at Hitachi

Nakamura’s quote says it all. Nanotech will have an enormous impact on all aspects of technology, including desulfurization. One way to stay on top of nanotech developments affecting your area of research is to bookmark the Nano Archive (http://www.nanoarchive.org/). According to the Nano Archive Web …

The Nano Archive is part of the ICPCNanoNet project, funded by the EU under FP7 for four years from 1st June 2008 (contract number 218282). It brings together partners from the EU, China, India and Russia and aims to provide wider access to published nanoscience research and opportunities for collaboration between scientists in the EU and International Cooperation Partner Countries.

This electronic archive of nanoscience publications has a simple interface for the deposit of full-text papers and incorporates facilities for retrieval by browsing or searching. It is freely accessible to researchers around the globe, making research papers and other scholarly publications widely available.

A number of the articles indexed in the Nano Archive are available in full text at no charge. When not available, a link to the source where the full text may be purchased is displayed.

Here are the results of a couple of simple searches on the Nano Archive site, using two search strings: “sulfur” and “hydrocarbon”

Search string: sulfur
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Liquefied petroleum gas containing sulfur as the carbon source for carbon nanotube forests
Jiaqi Huanga, Qiang Zhanga, Fei Wei, a, , Weizhong Qiana, Dezheng Wanga and Ling Hua
weifei@flotu.org
aBeijing Key Laboratory of Green Chemical Reaction Engineering and Technology, Department of Chemical Engineering, Tsinghua University, Beijing 100084, China

Abstract
Carbon nanotube (CNT) forests were obtained from liquefied petroleum gas (LPG) as the carbon source in the floating catalyst process. The CNTs obtained in the forest had a thinner diameter and lower growth rate than those obtained with other carbon sources, which was attributed to the existence of sulfur in the LPG. The use of unpurified LPG provides a controllable way to synthesize a CNT forest at low cost.

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Effect of microwaves on the formation of nanosized iron/carbon catalysts for oxidation of H2S to sulfur
Journal Nanotechnologies in Russia
Publisher MAIK Nauka/Interperiodica distributed exclusively by Springer Science+Business Media LLC.
ISSN 1995-0780 (Print) 1995-0799 (Online)
Issue Volume 3, Numbers 1-2 / February, 2008
Tsodikov, M. V. and Nekhaev, A. I. and Bukhtenko, O. V. and Maksimov, Yu. V. and Suzdalev, I. P. and Karaseva, M. S.

Abstract
Immobilized nanosized metal (oxides) on carbonaceous carriers were prepared by hydrolysis under mild conditions by using the carrier pores as a kind of nanoreactor. Metal alkoxide vapor was adsorbed on the carrier and then formed the product upon exposure to water vapor. With this facile method, Titania, Vanadia, Rhodium (oxide), and Platinum (oxide) nanostructures were prepared at high yields, high loadings, and good dispersion in the carrier material. High number concentrations of spheroidal nanoparticles of uniform size (diameter ca. 5 nm) were obtained from less reactive precursors, whereas with highly reactive precursors, such nanoparticles occurred only after subsequent calcination. Nanoparticles appeared to be the thermodynamically stable form of the metal (oxide) produced in the pores. Highly reactive precursors formed metastable seeds, which nucleated and restructured into nanoparticles upon subsequent exposure to heat. The presented method allows for preparation of metal (oxide) nanostructures and effective control of their size and shape.
/////

Search string: hydrocarbon

Mesoporous Silica: A Suitable Adsorbent for Amines
Zamani, Cyrus and Illa, Xavi and Abdollahzadeh-Ghom, Sara and Morante, J. R. and Romano Rodríguez, Albert (2009) Mesoporous Silica: A Suitable Adsorbent for Amines. Nanoscale Research Letters, 4 (11). pp. 1303-1308.

Abstract
Mesoporous silica with KIT-6 structure was investigated as a preconcentrating material in chromatographic systems for ammonia and trimethylamine. Its adsorption capacity was compared to that of existing commercial materials, showing its increased adsorption power. In addition, KIT-6 mesoporous silica efficiently adsorbs both gases, while none of the employed commercial adsorbents did. This means that KIT-6 Mesoporous silica may be a good choice for integrated chromatography/gas sensing micro-devices.

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Do you have a “How Do I” question on how to find information on a topic of interest? Send me an email (research@JeanSteinhardtConsulting.com) and I will return a confidential reply with a search strategy that can help you find what you need.

Don’t reinvent the wheel: Conversion/extraction desulfurization (CED)

“Reinventing the wheel is sometimes the right thing, when the result is the radial tire.” -- Jonathan Gilbert (American, b.1946)
Conversion Extraction Desulfurization (CED): "CED is considered a generic term covering all desulfurization processes that involve oxidation and extraction. The CED process first extracts a fraction of the sulfur from the diesel, then selectively oxidizes the remaining sulfur compounds, and finally extracts these oxidized materials." -- Conversion Extraction Desulfurization (CED) Phase III ; Final Technical Report (March 2005) (www.osti.gov/bridge/servlets/purl/840665-vSaLPk/native/840665.pdf)

Academic institutions have set up technology transfer organizations, often called Centers of Excellence, designed to enable companies to commercialize the results of research performed by innovative university scientists. One such is the Florida Institute For The Commercialization Of Public Research (http://www.florida-institute.com/index.cfm).

According to its Web …

“The Institute enables interested parties to evaluate potential opportunities and facilitates the process by which these discoveries enter the commercial marketplace. The Institute showcases technologies and products developed by publicly supported organizations across the state, and commercially-viable discoveries are paired with seasoned entrepreneurs and investors to ensure their growth and success.”

One of the technologies of particular interest to a desulfurization researcher is Conversion Extraction Desulfurization (CED), described below …

Technology Name: Fossil Fuel Desulfurization
Technology Background: There are over 13 million diesel trucks on the roadways in the United States. An older, diesel vehicle can produce about 8 tons of air pollution each year. Diesel exhaust is implicated in lung cancer, chronic bronchitis, acute bronchitis, asthma attacks, and respiratory symptoms. The introduction of ultra-low sulfur diesel fuel (ULSD) (reduced from 500 ppm to 15 ppm) will reduce air pollution significantly.
Market Potential: This method can be applied to produce ULSD and has been demonstrated to reduce the sulfur content of fuel from approximately 2% to 0.5% sulfur.
Applications: This invention is a novel, low cost, safe (ambient temperature, no concentrated acid) method for dramatically reducing the sulfur content of fossil fuel (diesel). The generalized method starts by oxidizing the organic sulfide in the fossil fuel with the addition of an alkali borate and a solvent. This allows the alkali borate and the organic sulfide to react to produce an oxidized organic sulfide (e.g. organic sulfone). The mixture is then easily separated into the oxidized organic sulfide and the hydrocarbon substance. By removing the (oxidized) organic sulfide from the hydrocarbon substance a purified, low sulfur fossil fuel can be obtained.
Advantages: This chemical process uses less hazardous reagents and milder conditions than competitive processes. In addition this process and method provides for more efficient removal of sulfur from diesel fuel.
Intellectual Property Status: International Patent Application No. WO2007050107 entitled, "FOSSIL FUEL DESULFURIZATION," was published on May 3, 2007.
Inventors/Management: Tong Ren and Julia Barker
source: http://www.florida-institute.com/index.cfm?fuseaction=startup.potentialStartupView&startupID=43

Research tip: Google® “center of excellence” to find other academic technology transfer organizations.

View my LinkedIn profile at: http://www.linkedin.com/in/jeansteinhardtresearch

Job Hunting Tip: Is There a Librarian in the House?

"If what I THINK is happening IS happening, it better NOT be." -- Mrs. Fox in the movie Fantastic Mr. Fox

Bellwether : one that takes the lead or initiative : leader; also : an indicator of trends -- http://www.merriam-webster.com/dictionary/BELLWETHER

When you get to a point in the interview when you are asked, “Do you have any questions?” … be sure to ask whether or not there is a library. Any answer but “yes” should raise a red flag in your mind. If the answer is “no,” seriously consider how much of a risk taker you are. If the answer is “there was one, but we no longer have one,” run, don’t walk, to the nearest exit.

For corporations of a certain size, the existence or nonexistence of a library is a bellwether, the canary in the coal mine. It is an indication of the competence of corporate management. Eliminating an existing corporate library is a bad decision, but more than that, it suggests that bad decisions are being made in other, more critical areas of corporate governance.

I have made a career as a librarian, most of it in the corporate world. I am not naïve enough to think that the mere existence of a library determines the success or failure of a company. There is no causal link. But it is a sign of the overall health of the company.

Two examples to illustrate my point …
ExxonMobil, considered by many to be one of the best managed and most successful companies in corporate history, maintains a number of libraries. And, judging by the job boards, it actively recruits librarians, even in the current economy.

By contrast, a number of years ago Brown & Root eliminated its library. Not long after, a “merger” with MW Kellogg was announced.

How does this affect you, a technologist? You may not intend to use the corporate library, even if there is one. (I spoke with an engineer once who announced with some pride that he had gone through college without using the campus library.) Doesn’t matter … it is an easy way to judge whether you want to risk your career with the company you are considering.

View my LinkedIn profile at: http://www.linkedin.com/in/jeansteinhardtresearch

Google® Scholar v. Dialog®

A common statement around Lockheed at the time was that it is usually easier, cheaper, and faster to redo scientific research than to determine whether it has been done previously. -- Roger Summit, "Reflections on the Beginnings of Dialog"

For decades Dialog® has been the gold standard for professional researchers. With the advent of Google® Scholar, which is free, why does anyone need to use a fee-based alternative like Dialog®?

There are many reasons, but the big 3 in my opinion are …
1) Sophisticated search language … Time, as we all know, is money. Dialog’s ability to accommodate complex search statements makes it possible to tighten your focus and minimize the number of irrelevant hits you have to browse through
2) Depth of coverage … Dialog® is a system of databases, produced by a variety of vendors. However it is fair to say that in most cases, the first year of coverage goes back much futher than you will find in a Google® search. The engineering index Compendex, for example, includes publications from 1969 to the present.
3) Minimal duplication … As you may have noticed from the previous post to this blog, a typical Google® Scholar search will result in numerous duplicates. Dialog has a feature which enables you to filter out duplicates before producing the results of your search.

The net result … in many cases a Dialog® search is more cost-effective than a Google® Scholar search, when you include the cost of the time you spend filtering Scholar results.

Keep reading for more background information on Compendex, as well as a fascinating history of the development of Dialog®. It was first applied to the problem of providing real-time access to the tens of thousands of technical reports indexed in NASA’s STAR database. A Lockheed team solved the problem by creating the NASA RECON system, using Dialog information retrieval technology.

RECON has since morphed into NTRS, the NASA Technical Report Server, accessible by the public at:
http://ntrs.nasa.gov/search.jsp

COMPENDEX
“Compendex is a comprehensive engineering bibliographic database. Compendex is the computerized version of the Engineering Index, an index of engineering materials started in 1884, now published by Elsevier. The name "Compendex" stands for COMPuterized ENgineering inDEX.[1] Compendex currently contains over 9 million records and references over 5,000 international sources including journals, conferences and trade publications. Approximately 500,000 new records are added to the database annually from over 190 disciplines and major specialties within the engineering field. Coverage is from 1969 to the present, and is updated weekly.

“Many subject areas of engineering are thoroughly represented including nuclear technology, bioengineering, transportation, chemical and process engineering, light and optical technology, agricultural engineering and food technology, computers and data processing, applied physics, electronics and communications, control, civil, mechanical, materials, petroleum, aerospace and automotive engineering as well as multiple subtopics within all these and other major engineering fields.”

Source: Wikipedia

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Excerpts from "Reflections on the Beginnings of Dialog"

“There was an ideal database to test our proof-of-concept and that was the NASA Scientific and Technical Aerospace Reports (STAR) database. Not only was it the largest database around (200,000 citations), but access to it was in great demand. Though NASA was running searches against STAR on a batch, IBM 1401 computer, I knew we could surpass this effort with Dialog if given the chance. Mel Day of NASA was the key figure in this regard.”
...
“NASA RECON. In 1967 NASA issued a competitive RFP (request for proposal) for development of the NASA RECON system. We submitted a bid of $180,000 against a dozen or so prominent software companies including such giants as Informatics, Computer Sciences, IBM, and others. We received the award, which was our first major development. The contract specified several enhanced features but otherwise was very close to the original Dialog. The result was called NASA/RECON (Remote Console Information Retrieval System). In preparation for the work, we upgraded the laboratory computer to an IBM 360/40 computer that was faster and contained more internal memory. In the bid, we included a rights-in-data clause that gave Lockheed the right to use any software developed for our own purposes. This right proved invaluable to the future success of the business as will be seen.

“Following successful installation of the NASA/RECON software on the NASA facility computer, our group was awarded contracts from the Atomic Energy Commission (AEC) and the European Space Research Organization (ESRO) to install Dialog on their computers.

source: "Reflections on the Beginnings of Dialog"
http://support.dialog.com/publications/chronolog/200206/1020628.shtml

Google® Tools Alert: Scholar

"The truth is more important than the facts." -- Frank Lloyd Wright

Literature search: a thorough exploration of all information published about a given topic. -- www.baylink.org/fieldtrips/glossary.html

Sometimes you just want to know a specific fact, like, how cold is it going to be when I step off the plane in Calgary? At other times, you need to do some heavy lifting. Let’s say, for example, that you are beginning to research biological desulfurization … specifically, the use of rhodoccus to treat dibenzothiophene.

This calls for a literature search, to see the paths other researchers have followed. You could do a simple Google® search, but your results will be more targeted using Scholar. Below, as an example, is the first page of the 1190 search results using the search phrase …

rhodococcus dibenzothiophene

I also used the “Scholar preferences” option to limit the results to English language publications,

First page of the 1190 search results on the phrase rhodococcus dibenzothiophene
Selective desulfurization of dibenzothiophene by Rhodococcus erythropolis D-1
nih.gov [PDF]
Y Izumi, T Ohshiro, H Ogino, Y Hine, M … - Applied and …, 1994 - Am Soc Microbiol
A dibenzothiophene (DBT)-degrading bacterium, Rhodococcus erythropolis D-1, which utilized
DBT as a sole source of sulfur, was isolated from soil. DBT was metabolized to 2-hydroxybiphenyl
(2-HBP) by the strain, and 2-HBP was almost stoichiometrically accumulated as the dead- ...
Cited by 190 - Related articles - BL Direct - All 7 versions

… region encoding the dibenzothiophene desulfurization operon of Rhodococcus sp. …
nih.gov [PDF]
CS Piddington, BR Kovacevich, J … - Applied and …, 1995 - aem.highwire.org
Dibenzothiophene (DBT), a model compound for sulfur-containing organic molecules found
in fossil fuels, can be desulfurized to 2-hydroxybiphenyl (2-HBP) by Rhodococcus sp. strain
IGTS8. Complementation of a desulfurization (dsz) mutant provided the genes from ...
Cited by 132 - Related articles - BL Direct - All 10 versions

… in specific desulfurization of dibenzothiophene by Rhodococcus sp. strain IGTS8
nih.gov [PDF]
SA Denome, ES Olson, KD Young - Applied and environmental …, 1993 - Am Soc Microbiol
... The gram-positive bacterium Rhodococcus sp. strain IGTS8 is able to remove sulfur from certain
aromatic compounds without breaking carbon-carbon bonds. In particular, sulfur is removed from
dibenzothiophene (DBT) to give the final product, 2-hydroxybiphenyl. A genomic ...
Cited by 124 - Related articles - BL Direct - All 8 versions

… of the metabolic pathway for dibenzothiophene desulphurization by Rhodococcus …
sgmjournals.org [PDF]
C Oldfield, O Pogrebinsky, J Simmonds, ES … - …, 1997 - Soc General Microbiol
Christopher Oldfield,'t Olga Pogrebinsky,' Julie Simmonds,' Edwin 5. Olson2 and Charles F. Kulpa3
... Author for correspondence: Christopher Oldfield. Tel: +44 131 455 2217. Fax: +44 131 455
2291. e-mail: c.oldfield@napier.ac.uk ... 1 Energy Biosystems Corporation, 4200 ...
Cited by 97 - Related articles - BL Direct - All 7 versions

… of dibenzothiophene by a cell-free system of Rhodococcus erythropolis D-1

T Ohshiro, Y Hine, Y Izumi - FEMS Microbiology Letters, 1994 - interscience.wiley.com
Abstract The enzymatic desulfurization of dibenzothiophene (DBT) to 2-hydroxybiphenyl
(2-HBP) was detected in extracts of Rhodococcus erythropolis D-1 grown on DBT as a sole source
of sulfur. In the dialyzed cell-free extracts, NADH was absolutely required for the activity. ...
Cited by 54 - Related articles - All 2 versions

… dibenzothiophenes from a hydrodesulfurized middle distillate by Rhodococcus …
nih.gov [HTML]
BR Folsom, DR Schieche, PM DiGrazia, J … - Applied and …, 1999 - Am Soc Microbiol
Rhodococcus erythropolis I-19, containing multiple copies of key dsz genes, was used to desulfurize
alkylated dibenzothiophenes (Cx-DBTs) found in a hydrodesulfurized middle-distillate petroleum
(MD 1850). Initial desulfurization rates of dibenzothiophene (DBT) and MD 1850 by I-19 ...
Cited by 68 - Related articles - BL Direct - All 7 versions

… of dibenzothiophene derivatives by whole cells of Rhodococcus erythropolis H-2

T Ohshiro, T Hirata, Y Izumi - FEMS Microbiology Letters, 1996 - interscience.wiley.com
AbstractThe dibenzothiophene desulfurizing bacterium, Rhodococcus erythropolis H-2, could
grow on dibenzothiophene derivatives such as 3,4-benzodibenzothiophene, 2,8-dimethyldibenzothiophene
and 4,6-dimethyldibenzothiophene as sulfur sources. Using whole cells, the structurally ...
Cited by 52 - Related articles - All 3 versions

… of dibenzothiophene degrading enzyme activity of Rhodococcus erythropolis D-1

T Ohshiro, K Suzuki, Y Izumi - Journal of fermentation and bioengineering, 1996 - Elsevier
The regulation of dibenzothiophene (DBT) degrading activity of Rhodococcus erythropolis
D-1 was examined. The enzymatic activity involved in DBT degradation of the strain D-1 was
found in cell-free extracts of cells grown not only with DBT as a sole sulfur source but also ...
Cited by 51 - Related articles - All 7 versions

… of desulfurization of dibenzothiophene by Rhodococcus erythropolis in batch and …
nih.gov [PDF]
P Wang, S Krawiec - Applied and Environmental Microbiology, 1996 - Am Soc Microbiol
... The DbtS phenotype (which confers the ability to oxidize selectively the sulfur atom of
dibenzothiophene [DBT] or dibenzothiophene sulfone [DBTO 2 ]) of Rhodococcus erythropolis
N1-36 was quantitatively charac- terized in batch and fed-batch cultures. ...
Cited by 51 - Related articles - BL Direct - All 8 versions

Molecular mechanisms of biocatalytic desulfurization of fossil fuels

KA Gray, OS Pogrebinsky, GT Mrachko, L Xi, DJ … - Nature …, 1996 - nature.com
... Enzymatic desulfurization of dibenzo-thiophene by a cell-free system of Rhodococcus erythropolis
D-1. FEMS Microbiol. Lett. ... Involvement of flavin coenzyme in dibenzothiophene degrading enzyme
system from Rhodococcus erythropolis D-1. Biosci. Biotech. ...
Cited by 208 - Related articles - BL Direct - All 6 versions

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