2-amino-3-carboxy-1-4-naphthoquinone and quinone

2-amino-3-carboxy-1-4-naphthoquinone has been researched along with quinone* in 1 studies

Other Studies

1 other study(ies) available for 2-amino-3-carboxy-1-4-naphthoquinone and quinone

ArticleYear
Glucose metabolism of lactic acid bacteria changed by quinone-mediated extracellular electron transfer.
    Bioscience, biotechnology, and biochemistry, 2002, Volume: 66, Issue:10

    It can be expected that extracellular electron transfer to regenerate NAD+ changes the glucose metabolism of the homofermentative lactic acid bacteria. In this work, the glucose metabolism of Lactobacillusplantarum and Lactococcus lactis was examined in resting cells with 2-amino-3-carboxy-1,4-naphthoquinone (ACNQ) as the electron transfer mediator and ferricyanide (Fe(CN)6(3-)) as the extracellular electron acceptor. NADH in the cells was oxidized by ACNQ with the aid of diaphorase, and the reduced ACNQ was reoxidized with Fe(CN)6(3-). The extracellular electron transfer system promoted the generation of pyruvate, acetate, and acetoin from glucose, and restricted lactate production. Diaphorase activity increased when cultivation was aerobic, and this increased the concentrations of pyruvate, acetate, and acetoin relative to the concentration of lactate to increase in the presence of ACNQ and Fe(CN)6(3-)

    Topics: Aerobiosis; Anaerobiosis; Benzoquinones; Biological Transport; Culture Media; Electron Transport; Extracellular Space; Glucose; Lactic Acid; Lactobacillus; Lactococcus lactis; NAD; Naphthoquinones; Oxidation-Reduction; Propionibacterium

2002