Learn More
Malic acid degradation bySchizosaccharomyces pombe was studied in synthetic and natural media. Using different concentrations from 1 to 29 g/l, malic acid was degraded. Initial deacidification rate increased with initial malate concentration. During the stationnary phase,S. pombe was able to decompose malate added to the medium before or after sugar(More)
The effect of yeast extract on the growth ofSchizosaccharomyces pombe was investigated using a complex-synthetic medium. Batch cultures at low-glucose concentration show that a too low concentration of yeast extract may limit the biomass formation. On this medium kinetics and yields were found to be similar to those obtained on a synthetic-defined medium(More)
Egg masses of the loliginid squid Loligo vulgaris Lamarck, 1798 are attached to hard substratum or branched sessile organisms on the sea bottom. Embryonic development lasts from a few weeks to a few months, depending on the environmental water temperature. Because embryonic statolith growth of L. vulgaris is very sensitive to temperature under laboratory(More)
The isolation and analysis of single prokaryotic cells down to 1 μm and less in size poses a special challenge and requires micro-engineered devices to handle volumes in the picoliter to nanoliter range. Here, an advanced Single-Cell Printer (SCP) was applied for automated and label-free isolation and deposition of bacterial cells encapsulated in 35 pl(More)
A two-reservoir, membrane bioreactor for carrying out studies of mixed-population dynamics in batch fermentations is presented. Mixing requirements and design aspects for the validity of the approach are given and discussed. Equations describing mixing times between the reservoirs are presented and compared to the experimental results. The validity of the(More)
Outdoor substations placed in coastal areas are affected by saline environments. In the technical literature it is found extensive information regarding insulations problems in presence of saline environments [1]. The accumulation of salts and other contaminants promotes the onset of partial discharges on the devices subjected to very high voltages.(More)
A multivariate calibration method based on principal component regression analysis is applied to the resolution of mixtures by kinetic methodology. Gallium(III) and Al(III) were determined in mixtures on the basis of their different rate of reaction with 4-(2-pyridylazo)resorcinol in a slightly basic medium by using a stopped-flow injection procedure.(More)
The purpose of this work was to set up an enumeration procedure to quantify the heat resistance of yeasts in food products in order to establish pasteurization schedules. The heat resistance of Saccharomyces cerevisiae was studied in a fruit-based product. Experiments were carried out to evaluate the number of viable cells after heat treatment at(More)