Results 131 to 140 of about 3,353 (150)
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Hydroxyl radical scavenging ability of bacterioruberin
Radiation Physics and Chemistry, 1997Abstract A red carotenoid pigment, bacterioruberin, was extracted from Rubrobacter radiotolerans. The OH scavenging effect of this pigment was studied using a system of thymine degradation and compared with those of cysteine and β-carotene. Thymine solution (5 × 10−4 mol/dm3 with 0.2% SDS buffered at pH 7.0) was irradiated with 60Co γ-rays in the ...
Hiroshi Ide
exaly +2 more sources
Structural Role of Bacterioruberin in the Trimeric Structure of Archaerhodopsin-2
Journal of Molecular Biology, 2008Archaerhodopsin-2 (aR2), a retinal protein-carotenoid complex found in the claret membrane of Halorubrum sp. aus-2, functions as a light-driven proton pump. In this study, the membrane fusion method was utilized to prepare trigonal P321 crystals (a=b=98.2 A, c=56.2 A) and hexagonal P6(3) crystals (a=b=108.8 A, c=220.7 A).
Keiko, Yoshimura, Tsutomu, Kouyama
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Bioresource Technology
Bacterioruberin is a red-pigmented C50 carotenoid commonly found in halophilic archaea, known for its strong antioxidant properties. In this study, we demonstrate the complete biosynthesis of bacterioruberin in metabolically engineered Corynebacterium glutamicum overproducing lycopene.
Myung-Ji Seo, Eui-Sang Cho
exaly +3 more sources
Bacterioruberin is a red-pigmented C50 carotenoid commonly found in halophilic archaea, known for its strong antioxidant properties. In this study, we demonstrate the complete biosynthesis of bacterioruberin in metabolically engineered Corynebacterium glutamicum overproducing lycopene.
Myung-Ji Seo, Eui-Sang Cho
exaly +3 more sources
Bacterioruberins Reinforce Reconstituted Halobacterium Lipid Membranes
1991We have developed methodologies for the determination of the topology of α,ω-dihydroxylated carotenoids incorporated into vesicles and for the evaluation of the reinforcing effects of these carotenoids on lipid bilayers.
Y. Nakatani +4 more
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Journal of Food Science
Abstract The present study used haloarchaeal bacterioruberin (BR), a carotenoid pigment, to improve color and reduce fat oxidation. The BR is incorporated as 10 mg/kg (T1), 25 mg/kg (T2), and 50 mg/kg (T3) in the emulsion sausages, and 200 mg/kg butylated hydroxytoluene was used as a ...
K A Martin Xavier +2 more
exaly +3 more sources
Abstract The present study used haloarchaeal bacterioruberin (BR), a carotenoid pigment, to improve color and reduce fat oxidation. The BR is incorporated as 10 mg/kg (T1), 25 mg/kg (T2), and 50 mg/kg (T3) in the emulsion sausages, and 200 mg/kg butylated hydroxytoluene was used as a ...
K A Martin Xavier +2 more
exaly +3 more sources
Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy, 2013
Laboratory cultures of a number of red extremely halophilic Archaea (Halobacterium salinarum strains NRC-1 and R1, Halorubrum sodomense, Haloarcula valismortis) and of Salinibacter ruber, a red extremely halophilic member of the Bacteria, have been investigated by Raman spectroscopy using 514.5nm excitation to characterize their carotenoids.
J, Jehlička, H G M, Edwards, A, Oren
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Laboratory cultures of a number of red extremely halophilic Archaea (Halobacterium salinarum strains NRC-1 and R1, Halorubrum sodomense, Haloarcula valismortis) and of Salinibacter ruber, a red extremely halophilic member of the Bacteria, have been investigated by Raman spectroscopy using 514.5nm excitation to characterize their carotenoids.
J, Jehlička, H G M, Edwards, A, Oren
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Bioresource Technology
Bacterioruberin is widely used in medicine, food, and cosmetics owing to its prominent characteristics of antioxidants and bioactivities. Bioconversion of methane into bacterioruberin is a promising way to address biomanufacturing substrate costs and greenhouse gas emissions but has not been achieved yet.
Shuqi Guo, Chenyue Zhang, Qiang Fei
exaly +3 more sources
Bacterioruberin is widely used in medicine, food, and cosmetics owing to its prominent characteristics of antioxidants and bioactivities. Bioconversion of methane into bacterioruberin is a promising way to address biomanufacturing substrate costs and greenhouse gas emissions but has not been achieved yet.
Shuqi Guo, Chenyue Zhang, Qiang Fei
exaly +3 more sources
Applied Optics, 2014
Halophilic archaea are interesting microorganisms that produce low biomass and metabolites, complicating their quantification. Raman spectroscopy (RS) is a powerful technique, which requires small samples, attractive for using in archaeal research.
David Isidoro, Camacho-Córdova +3 more
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Halophilic archaea are interesting microorganisms that produce low biomass and metabolites, complicating their quantification. Raman spectroscopy (RS) is a powerful technique, which requires small samples, attractive for using in archaeal research.
David Isidoro, Camacho-Córdova +3 more
openaire +2 more sources
Biochemistry, 2012
Halorhodopsin is a retinal protein with a seven-transmembrane helix and acts as an inward light-driven Cl(-) pump. In this study, structural state of the solubilized halorhodopsin (NpHR) from the biomembrane of mutant strain KM-1 of Natronomonas pharaonis in nonionic detergent was investigated.
Takanori, Sasaki +3 more
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Halorhodopsin is a retinal protein with a seven-transmembrane helix and acts as an inward light-driven Cl(-) pump. In this study, structural state of the solubilized halorhodopsin (NpHR) from the biomembrane of mutant strain KM-1 of Natronomonas pharaonis in nonionic detergent was investigated.
Takanori, Sasaki +3 more
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Journal of Fluorescence
Fluorescence characterization of halophilic archaeal C50 carotenoid-bacterioruberin extracts was investigated using UV/Vis and steady-state fluorescence spectrophotometry in solvents with different polarity. Different extracts showed maximum absorption and fluorescence wavelengths between 369-536 nm and 540-569 nm.
Merve, Zurnacı, Fevziye Işıl, Kesbiç
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Fluorescence characterization of halophilic archaeal C50 carotenoid-bacterioruberin extracts was investigated using UV/Vis and steady-state fluorescence spectrophotometry in solvents with different polarity. Different extracts showed maximum absorption and fluorescence wavelengths between 369-536 nm and 540-569 nm.
Merve, Zurnacı, Fevziye Işıl, Kesbiç
exaly +3 more sources