Custom made inclusion bodies: impact of classical process parameters and physiological parameters on inclusion body quality attributes.

Background: The bacterium E. coli is a major host for recombinant protein production of non-glycosylated products. Depending on the expression strategy, the recombinant protein can be located intracellularly.

Morphological and tissue characterization of the medicinal fungus Hericium coralloides by a structural and molecular imaging platform.

In this study the potential of new imaging techniques such as Magnetic Resonance Imaging (MRI), Matrix-Assisted Laser Desorption/Ionization (MALDI) profiling mass spectrometry ("MALDI Profiling") and Fourier Transform Infrared (FTIR) spectroscopic imaging was evaluated to study morphological and molecular patterns of the potential medicinal fungus Hericium coralloides. For interpretation, the MALDI profiling, FTIR imaging and MRI results were correlated with histological information gained from Scanning Electron Microscopy (SEM) and Light Microscopy (LM). Additionally we tested several evaluation processes and optimized the methodology for use of complex FTIR images to monitor molecular patterns.

Carbon utilization pattern as a potential quality control criterion for virulence of Beauveria brongniartii.

The registered entomopathogenic fungus Beauveria brongniartii (BIPESCO 2) was tested for its virulence after one, five and 10 times sub-culturing on four types of selective synthetic nutrient media. Bioassays with third instar Melolontha melolontha larvae showed that sub-culturing negatively affects the virulence of the fungus after 10 transfers. With the Biolog SF-P2 and Biolog SF-N2 microtiter plate systems the sub-cultivated B.

Formation of exudate droplets by Metarhizium anisopliae and the presence of destruxins.

Nutritional conditions causing droplet exudation by Metarhizium anisopliae var. anisopliae were studied. Exudation in droplets occurred only on media with more than one carbon source and was highly dependent on the ratio of a well metabolized sugar such as trehalose and a nonpreferred sugar, in particular arabinose.

Destruxin production of Metarhizium anisopliae under carbon and nitrogen exhaustion.

Destruxins (dtx) A, B, and E, showing a variety of biological activities, are the main toxic secondary metabolites of the entomopathogenous ascomycete Metarhizium anisopliae Bipesco 5, a widely used biocontrol production strain. Dynamics of dtx biosynthesis were monitored during liquid fermentation in a chemically defined medium. During shake flask cultivation with excess carbon, nitrogen and phosphate, approximately 50, 20, and 100 mg l(-1) dtx A, B, and E were produced after 12 d.