摘要:
The present invention provides a method for extracting lipids from microorganisms without using organic solvent as an extraction solvent. In particular, the present invention provides a method for extracting lipids from microorganisms by lysing cells and removing water soluble compound and/or materials by washing the lysed cell mixtures with aqueous washing solutions until a substantially non-emulsified lipid is obtained.
摘要:
The present invention relates to a free parietal fraction of Propionibacterium acnes and granulosum, obtained by delipidation and controlled crushing of the strain ATCC51277 or DSM20458. Said free fraction is particularly useful as an immunomodulating agent for a series of pathologies, being further characterized in that it has a high inhibitory effect against the symptoms associated with disorders. The fraction obtained can moreover be formulated in pharmaceutical compositions for local topical use, for example in gels.
摘要:
The present invention relates to a novel hyperhalophilic strain and use thereof for the degradation of carbon-containing substrates, in particular making it possible to prepare novel polymers.
摘要:
The present invention relates to methods for isolating polypepitdes from cells. The methods may be used to isolate denatured polypeptides or native polypeptides. In one embodiment the methods may be used to isolated polypeptide from cytosolic and nuclear compartments of eukaryotic cells. In one embodiment the methods may be used to isolate polypeptides from bacterial cells.
摘要:
The invention relates to the identification, sequencing, and isolation of an A25 bacteriophage lysin gene that expresses a protein involved in the lysis of bacterial cells during the phage life cycle. The invention further relates to methods for lysing certain bacteria using lysin, which are useful for example in a diagnostic procedure designed to detect these bacteria.
摘要:
Disclosed is a method of mechanically crushing microalgae cells of the genus Chlorella at an industrial scale, the mechanical crushing being carried out in a horizontal ball mill system. In the method, the balls have an apparent density of between 2 and 3.5 kg/1, the filling rate of the crushing chamber is greater than or equal to 80%, and preferably greater than or equal to 85%, and the mechanical crushing is carried out continuously by a series of successive passes.
摘要:
The present invention relates to an assay for the determination of a microorganism including a lysing chamber having triangular shaped metallic structures wherein the apexes of two triangles are arranged in alignment and forming a reactive zone for placement of the microorganism and lysing by microwave energy for exposing and isolating a target polynucleotide sequence. The isolated target polynucleotide sequence is introduced to an assay system for contact with polynucleotides which are complimentary to the isolated target polynucleotide sequence. Fluorophore-labeled capture polynucleotides are added for hybridizing to any bound target polynucleotide. Bound target polynucleotides are detected by metal enhanced fluorescence.
摘要:
General methods and strains of bacteria are described that dramatically simplify and streamline plasmid DNA production. In one preferred embodiment, endolysin mediated plasmid extraction combined with flocculation mediated removal of cell debris and host nucleic acids achieves increased yield and purity with simplified downstream purification and reduced waste streams, thus reducing production costs.
摘要:
A method of extracting organelles from cells includes following process. A plurality of cells and a solution are mixed uniformly to obtain a mixture. The mixture is loaded into a container. The container is placed in a milling device comprising a miller and a mechanical power source connected to the miller. The miller is immersed into the mixture within the container. The mixture is milled by the miller to obtain a homogenized mixture, wherein a milling parameter is provided to the milling device, and the mechanical power source drives the miller according to the milling parameter. The homogenized mixture is centrifuged to obtain a supernatant. The supernatant is centrifuged to obtain a precipitate with a plurality of organelles. In the process that the mixture is milled by the miller, at least a part of the miller is kept in the mixture.
摘要:
The instant invention refers to a novel process for potentiating the production of substances with antifungal activity obtained from Ganoderma lucidum, using a technological device for the differential, qualitative and quantitative expression of proteins and other bioactive molecules, selected from the group consisting of polysaccharides, triterpenoids, fatty acids and ganoderic acids. The compositions containing said substances showed antifungal activity and mycelium growth and fungi ascospore germination inhibiting activity, amongst them Mycosphaerella fijiensis, primary pathogenic agent causing black Sigatoka disease in banana and plantain crop fields.