14 Result(s)

Chapter and Conference Paper

Rheological properties of solutions of a colloid-disperse homoglucan from Schizophyllum commune

The rheological properties of a homoglucan produced by Schizophyllum commune were investigated in water and dimethylsulfoixde (DMSO). Aqueous solutions of the polymer showed non-Newtonian character at concentrati...

E. Steiner, H. Divjak, W. Steiner, R. M. Lafferty, H. Esterbauer in Dispersed Systems (1988)

Article

The use of lignocellulosic wastes for production of cellulase by Trichoderma reesei

The feasibility of cellulase production by Trichoderma reesei using inexpensive lignocellulosic material was examined. Sulfite pulp used as standard substrate yielded 3.7 IU/ml filter paper units (FPU) and 2.15 I...

R. Doppelbauer, H. Esterbauer, W. Steiner… in Applied Microbiology and Biotechnology (1987)

Chapter and Conference Paper

Enzyme Technology

R. M. Lafferty in Enzyme Technology (1983)

Article

A kinetic model for growth and synthesis of poly-β-hydroxybutyric acid (PHB) in Alcaligenes eutrophus H 16

A structured model is presented giving a mathematical description of batch cultures of Alcaligenes eutrophus strain H 16 under chemolithoautotrophic growth conditions. A mass-spectrometer with a membrane inlet sy...

E. Heinzle, R. M. Lafferty in European journal of applied microbiology and biotechnology (1980)

Article

Continuous mass spectrometric measurement of dissolved H₂, O₂, and CO₂ during chemolithoautotrophic growth of Alcaligenes eutrophus strain H 16

Polarographic oxygen electrodes, a mass spectrometer with a membrane inlet system, and a redox electrode were used to measure dissolved H₂, O₂, and CO₂ continuously during chemolithoautotrophic cultivation of Alc...

E. Heinzle, R. M. Lafferty in European journal of applied microbiology and biotechnology (1980)

Article

Formal kinetics of poly-β-hydroxybutyric acid (PHB) production in Alcaligenes eutrophus H 16 and Mycoplana rubra R 14 with respect to the dissolved oxygen tension in ammonium-limited batch cultures

Under chemolithoautotrophic growth conditions with the organism Alcaligenes eutrophus H16 the exponential growth phase is characterized by two different growth rates, each associated with different specific rates...

B. Sonnleitner, E. Heinzle, G. Braunegg… in European journal of applied microbiology a… (1979)

Article

A rapid gas chromatographic method for the determination of poly-β-hydroxybutyric acid in microbial biomass

The gas chromatographic method for the determination of poly-β-hydroxybutyric acid (PHB) consists of a mild acid or alkaline methanolysis of poly-β-hydroxybutyric acid directly without previous extraction of P...

G. Braunegg, B. Sonnleitner, R. M. Lafferty in European journal of applied microbiology a… (1978)

Article

Removal of RNA by heat treatment

A procedure was developed for the removal of RNA from cells ofAlcaligenes eutrophus H 16 based on a heat shock treatment. After a heat shock of 10 s to 10 min at 65°C the cellular RNA was degraded and the degrada...

A. S. Abu Ruwaida, R. M. Lafferty… in European journal of applied microbiology a… (1976)

Article

A simple method for the determination of poly-β-hydroxybutyric acid in microbial biomass

Poly-β-hydroxybutyric (PHB) acid can be determined IR-spectrophotometrically following chloroform extraction from bacterial biomass. The limit of sensitivity with the present instrument was 50 μg/ml. Interferr...

R. -R. Jüttner, R. M. Lafferty… in European journal of applied microbiology a… (1975)

Chapter and Conference Paper

Novel energy and carbon sources A. The production of biomass from hydrogen and carbon dioxide

H. G. Schlegel, R. M. Lafferty in Advances in Biochemical Engineering, Volume 1 (1971)

Article

Kohlendioxyd-Fixierung durch organotrophe Bakterien

1. Bei einer Anzahl von Bakterienarten (Bacillus subtilis, Proteus vulgaris, Aerobacter aerogenes, Pseudomonas a...

R. M. Lafferty in Archiv für Mikrobiologie (1963)