Production of .BETA.-phenethyl alcohol from styrene by Pseudomonas 305-STR-1-4.

Shirai, Katsuhisa; Hisatsuka, Kenichi

doi:10.1271/bbb1961.43.1399

Cited by 33 publications

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“…Shira '~ and Hisatsuka (1979) reported the role of styrene oxide as an intermediate metabolite in the oxidation of styrene to 2-phenylethanol by Pseudomonas 305-STR-1-4. Hartmans et al (1989Hartmans et al ( , 1990) discussed, with more details, the enzymes involved in the degradation of styrene oxide and 2-phenylethanol by Xanthobacter 124X.…”

Section: Introductionmentioning

confidence: 99%

High efficiency styrene biodegradation in a biphasic organic/water continuous reactor

Aalam

Pauss

Lebeault

1993

Appl Microbiol Biotechnol

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Styrene was degraded as sole source of carbon and energy by a selected bacterial community in a two-phase aqueous-organic medium (80% :20%, vol/ vol). Silicone oil was used to solubilize styrene, which is sparingly soluble in water and to prevent its toxicity toward microorganisms. Preliminary studies with the mixed population in batch cultures indicate that the specific activity and the maximum growth rate at optimal pH 6.0 were 46 mg.g-1 .h-1 and 0.15 h-1, respectively. In pH-regulated chemostat cultures, styrene was degraded at dilution rates ranging from 0.05 to 0.20 h -t. Kinetic parameters and the proportion of each strain in the mixed culture were followed. At 0.20 h-1, only one strain as compared to four initially present, remained in the medium. This strain Pseudomonas aeruginosa, degrades styrene with a specific activity of 293 m g -g -l -h -1 . Such results could lead to industrial treatment of waste gas or water polluted with styrene.

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Section: Introductionmentioning

confidence: 99%

High efficiency styrene biodegradation in a biphasic organic/water continuous reactor

Aalam

Pauss

Lebeault

1993

Appl Microbiol Biotechnol

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“…Styrene (vinyl-benzene) is a polymer and it is a natural component in plants. It is aerobically degradable by different types of bacteria (Grbic-Galic, 1990;Omori, 1974Omori, , 1975Shirai, 1979;Sielicki, 1978). It has also been shown to be degraded by an anaerobic consortium of micro-organisms (Grbic-Galic, 1990).…”

Section: Low and Intermediate Radioactive Waste Repositoriesmentioning

confidence: 99%

Analysis of mineralogical and deformation-induced transformations of Nizhnekansky Massif rocks to estimate their retention capacity in geological disposal and isolation of radioactive waste

Петров¹,

Poluektov²,

Hammer³

et al. 2015

gzh

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JT03354141Complete document available on OLIS in its original format This document and any map included herein are without prejudice to the status of or sovereignty over any territory, to the delimitation of international frontiers and boundaries and to the name of any territory, city or area. . Since then, there have been major developments in a number of national geological disposal programmes and significant experience has been obtained in preparing and reviewing cases for the operational and long-term safety of proposed and operating geological repositories. Especially, three national programmes are now, or will shortly be, at the stage of licence application for a deep geological repository for the disposal of spent nuclear fuel or high-level and other long-lived radioactive waste.Thus, the purpose of this Symposium, "The Safety Case for Deep Geological Disposal of Radioactive Waste: 2013 State of the Art", was to assess the practice, understanding and roles of the safety case, as applied internationally at all stages of repository development, including the interplay of technical, regulatory and societal issues, as they have developed since 2007.The Symposium was organised and hosted by the Nuclear Energy Agency (NEA) of the Organisation for Economic Co-operation and Development (OECD), and co-sponsored by the EC and the IAEA.The 2013 Symposium attracted 168 participants from 65 organisations and 17 countries and international bodies.The Symposium was chaired by Klaus-Jürgen Röhlig, who is also the Chair of the NEA Integration Group for the Safety Case (IGSC). The planning and implementation of the symposium were supported by the efforts of staff of the NEA and of the programme committee.This synopsis was drafted by Trevor Sumerling (Safety Assessment Management Ltd, UK), finalised under the direction of the Chair and Gloria Kwong of the NEA and approved by the programme committee. Deep Geological Repositories (1999). Since then the concept has been elaborated on in NEA documents describing the nature and purpose of safety cases , 2013a and has been the basis of NEA/IGSC collaborative projects and EU projects (EC, 2011). The concept has been taken up in international safety standards as promulgated by the IAEA (2006, 2011) and recently in ICRP recommendations on the application of the system of radiological protection to geological disposal (ICRP, 2013).Meanwhile, the concept has been developed practically and applied within many national radioactive waste disposal programmes and also taken up in some national regulatory guides. The NEA has used the concept as a guide in several international peer reviews of national repository programmes and safety documentation. In Europe, the EU Directive 2011/70/Euratom (EU, 2011) establishes a framework to ensure responsible and safe management of spent fuel and radioactive waste by member states that, inter alia, requires a decision-making process based on safety evidence and arguments that mirrors the safety case concept. Aims of the symposiumThe purpose of thi...

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“…Sielicki et al (1978a) isolated a mixed culture which could degrade styrene, and found that phenylacetic acid and 2-phenylethanol were present in the growth medium. Shirai and Hisatsuka (1979a) isolated…”

Section: Breakdown Via Phenylacetic Acidmentioning

confidence: 99%

Untitled

1994

Journal of Applied Bacteriology

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Production of .BETA.-phenethyl alcohol from styrene by Pseudomonas 305-STR-1-4.

Cited by 33 publications

References 0 publications

High efficiency styrene biodegradation in a biphasic organic/water continuous reactor

High efficiency styrene biodegradation in a biphasic organic/water continuous reactor

Analysis of mineralogical and deformation-induced transformations of Nizhnekansky Massif rocks to estimate their retention capacity in geological disposal and isolation of radioactive waste

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