Abstract: The method for isolating nucleic acids from a food sample comprising the following steps: a) obtaining a food enrichment culture; b) transferring a portion of the food enrichment culture into a reaction vessel thereby providing a food enrichment sample and providing a water-immiscible phase in contact with the food enrichment culture; c) lysing the food enrichment sample to provide a lysed sample; d) isolating nucleic acids from the lysed sample. Food enrichment culture samples are known to contain high concentrations of organic and/or liposoluble inhibitors. By contacting the enrichment culture sample with a water-immiscible phase before the actual DNA extraction procedure starts, part of the lipophilic inhibitors is expected to cross the phase interface due to an enhanced solubility in the organic phase and thereby become depleted.

Abstract: The present invention relates to a method for purifying biomolecules or for analyzing whether an aqueous phase contains biomolecules by means of magnetic separation. The invention further relates to uses, to devices, and to kits that relate to the method according to the invention.

Abstract: The method for isolating nucleic acids from a food sample comprising the following steps: a) obtaining a food enrichment culture; b) transferring a portion of the food enrichment culture into a reaction vessel thereby providing a food enrichment sample and providing a water-immiscible phase in contact with the food enrichment culture; c) lysing the food enrichment sample to provide a lysed sample; d) isolating nucleic acids from the lysed sample. Food enrichment culture samples are known to contain high concentrations of organic and/or liposoluble inhibitors. By contacting the enrichment culture sample with a water-immiscible phase before the actual DNA extraction procedure starts, part of the lipophilic inhibitors is expected to cross the phase interface due to an enhanced solubility in the organic phase and thereby become depleted.

Abstract: The present invention relates to a method for purifying biomolecules or for analyzing whether an aqueous phase contains biomolecules by means of magnetic separation. The invention further relates to uses, to devices, and to kits that relate to the method according to the invention.

Abstract: The invention relates to an active enzyme of bacterial, fungal, viral, or archae origin, wherein the enzyme is coupled, preferably covalently coupled with at least one polymer having a molecular weight between about 500 to about 20,000 daltons selected from the group consisting of polyethylene glycol and polypropylene glycol. The invention relates in particular to uses thereof of such as in molecular biology as well as kits comprising such enzymes. In preferred embodiments the enzymes of the invention are nucleic acid modifying or replicating enzymes.