Inactivation of T5 phage by cis-vaccenic acid, an antivirus substance from Rhodopseudomonas capsulata, and by unsaturated fatty acids and related alcohols

Hirotani, Hayato; Ohigashi, Hajime; Kobayashi, Michihiko; Koshimįzu, Koichi; Takáhashi, Eiichi

doi:10.1016/0378-1097(91)90006-v

Cited by 21 publications

(8 citation statements)

References 11 publications

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“…The dry cell weight and the total carotenoid production in Af. marina strain ME exposed to different photoperiods (24,18,12,6, and 0 h) under anaerobic culture condition were determined at 30 ± 2°C under two light intensities (3 and 2.5 klx).…”

Section: Growth Characteristics Of Af Marina Strain Me Under Differementioning

confidence: 99%

Isolation and Characterization of Purple Non-Sulfur Bacteria, Afifella marina, Producing Large Amount of Carotenoids from Mangrove Microhabitats

Al-Azad²,

Ransangan³

2014

Journal of Microbiology and Biotechnology

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Section: Growth Characteristics Of Af Marina Strain Me Under Differementioning

confidence: 99%

Isolation and Characterization of Purple Non-Sulfur Bacteria, Afifella marina, Producing Large Amount of Carotenoids from Mangrove Microhabitats

Al-Azad²,

Ransangan³

2014

Journal of Microbiology and Biotechnology

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“…A broad range of bacteria ------------------------------------------------------------------------------------------------------------- ---------------------------------------------------------------------------------------------------------------- -----------------------------------------------------------------------------------------------------------------* All tests were incubated at 37°C for 15 min except where indicated. † Under 3000 lx illumination (Hirotani et al 1991). pfu, Plaque-forming units ; cfu, colony-forming units.…”

Section: The Phage Amplification Assaymentioning

confidence: 99%

The specific and sensitive detection of bacterial pathogens within 4 h using bacteriophage amplification

et al. 1998

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This paper describes a novel approach, termed the 'phage amplification assay', for the rapid detection and identification of specific bacteria. The technique is based on the phage lytic cycle with plaque formation as the assay end-point. It is highly sensitive, quantitative and gives results typically within 4 h. The assay comprises four main stages: (1) phage infection of target bacterium; (2) destruction of exogenous phage; (3) amplification of phage within infected host and (4) plaque formation from infected host with the aid of helper bacteria. A key component of this assay is a potent virucidal agent derived from natural plant extracts, pomegranate rind extract (PRE). In combination with ferrous sulphate PRE can bring about an 11 log-cycle reduction in phage titre within 3 min. This is achieved without any injury to the infected target bacteria. Subsequently, any resulting plaques are derived only from infected target organisms. Data are presented for a range of bacterial hosts including Pseudomonas aeruginosa, Salmonella typhimurium and Staphylococcus aureus. The detection limit for Ps. aeruginosa was 40 bacteria ml-1 in a time of 4 h and 600 bacteria m-1 for Salm. typhimurium. Application of the principles of this technology to other bacterial genera is discussed.

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“…The unique character of the phototrophic bacteria is their diverse metabolic activity and the ability to grow in different cultural conditions, both in synthetic and naturally occurring substrates (Imhoff 1992). The potential biotechnological applications of phototrophic bacteria include: bioremediation of wastewater (Kobayashi and Kobayashi 1995), production of antiviral substances (Hirotani et al. 1991), production of single cell protein (SCP) as protein sources (Noparatnaraporn and Nagai 1986), as fuel (Tsygankov et al.…”

Section: Introductionmentioning

confidence: 99%

Rhodovulum sulfidophilum in the treatment and utilization of sardine processing wastewater

Azad¹,

Sabaratnam

Chong

et al. 2004

Lett Appl Microbiol

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Aims: Rhodovulum sulfidophilum was grown in settled undiluted and nonsterilized sardine processing wastewater (SPW). The aims were to evaluate the effects of inoculum size and media on the biomass production with simultaneous reduction of chemical oxygen demand (COD). Methods and Results: Three levels of inoculum size (10, 20 and 30% v/v) developed in glutamate-malate media (GMM) or settled and undiluted SPW were compared. The highest biomass (4AE8 g l )1 ) was obtained after 96-h culture with 20% (v/v) inoculum size, but the reduction in COD of SPW was the highest (85%) after 120-h culture with a 30% (v/v) inoculum developed in GMM. In cultures with inoculum developed in SPW the COD reduction in SPW was 79-83%. Conclusions, Significance and Impact of the Study: Inoculum developed in GMM supported good growth of Rv. sulfidophilum in settled undiluted SPW and subsequent reduction in COD. A conceptual model was proposed for the treatment and utilization of SPW.

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Inactivation of T5 phage by cis-vaccenic acid, an antivirus substance from Rhodopseudomonas capsulata, and by unsaturated fatty acids and related alcohols

Cited by 21 publications

References 11 publications

Isolation and Characterization of Purple Non-Sulfur Bacteria, Afifella marina, Producing Large Amount of Carotenoids from Mangrove Microhabitats

Isolation and Characterization of Purple Non-Sulfur Bacteria, Afifella marina, Producing Large Amount of Carotenoids from Mangrove Microhabitats

The specific and sensitive detection of bacterial pathogens within 4 h using bacteriophage amplification

Rhodovulum sulfidophilum in the treatment and utilization of sardine processing wastewater

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