摘要:
The invention relates to methods for reducing off-flavour in milk-related products, said methods comprising the step of oxidizing lactose in a milk-related product to lactobionic acid. The invention further relates to methods of producing packaged, milk-related products, as well as milk-related products produced by the said methods.
摘要:
Milchzucker wird in neutraler Lactoselösung, z.B. Milch oder Süßmolke, mittels trägergebundener Pilzlactase, insbesondere aus Aspergillus oryzae, bei einer Temperatur über 50°C mit hohem Hydrolysegrad gespalten. Bakterienwachstum wird durch die hohe Temperatur vermieden. Die Aktivität des vorzugsweise covalent gebundenen Enzyms bleibt über mehrere Monate erhalten.
摘要:
A stable and water-insoluble immobilized lactase having a high lactose-hydrolyzing activity is produced with industrial advantages by immobilizing a lactase derived from Aspergillus oryzae on a macroporous phenol-formaldehyde anion-exchange resin. The immobilized lactase can be used in the continuous enzymatic hydrolysis of lactose in milk, whey and whey permeate.
摘要:
Die Erfindung betrifft ein Verfahren zur enzymatischen Umsetzung eines biologischen Substrats in wäßriger Lösung, die neben dem Substrat zu hydrophober Wechselwirkung befähigte Begleitstoffe enthält mittels eines gegenüber dem Substrat aktiven Enzyms, das bei hydrophober Wechselwirkung mit den Begleitstoffen gehemmt wird, wobei die enzymatische Umsetzung in Anwesenheit der hydrophoben Begleitstoffe durchgeführt wird und das eingesetzte Enzym adsorptiv an einem hydrophob modifizierten, porösen Träger mit hydrophiler Matrix gebunden ist.
摘要:
The invention provides protein-functionalized magnetic nanoparticles comprising magnetic nanoparticles (MNPs) to which a lactose-binding protein or enzyme has been immobilized. The protein-functionalized magnetic nanoparticles are particularly suitable for separating lactose from a lactose-containing solution, such as milk, cheese, yoghurt, flavored milk or the like. The protein-functionalized MNPs can be added to the lactose-containing solution and be allowed to bind to the lactose in the solution. The MNPs, to which the lactose is bound, can then be magnetically removed from the solution, e.g. by applying an external magnetic field.
摘要:
The invention provides protein-functionalised magnetic nanoparticles comprising magnetic nanoparticles (MNPs) to which a lactose-binding protein or enzyme has been immobilized. The protein-functionalised magnetic nanoparticles are particularly suitable for separating lactose from a lactose-containing solution, such as milk, cheese, yoghurt, flavoured milk or the like. The protein-functionalised MNPs can be added to the lactose-containing solution and be allowed to bind to the lactose in the solution. The MNPs, to which the lactose is bound, can then be magnetically removed from the solution, e.g. by applying an external magnetic field.
摘要:
Die Erfindung betrifft ein Verfahren zur enzymatischen Umsetzung eines biologischen Substrats in wäßriger Lösung, die neben dem Substrat zu hydrophober Wechselwirkung befähigte Begleitstoffe enthält mittels eines gegenüber dem Substrat aktiven Enzyms, das bei hydrophober Wechselwir kung mit den Begleitstoffen gehemmt wird, wobei die enzy mätische Umsetzung in Anwesenheit der hydrophoben Begleitstoffe durchgeführt wird und das eingesetzte Enzym adsorptiv an einem hydrophob modifizierten, porösen Träger mit hydrophiler Matrix gebunden ist.
摘要:
A container (10) for transporting, storing and dispensing liquids, solutions, suspensions, emulsions, mixtures or wet solids is fitted with a retainer or reactor (22) to retain, restrict, immobilize, hold, trap or confine a wide variety of natural or semi-synthetic enzymes, multi-enzyme systems, organelles, and cells, both living and dead. These later complex structures include, but are not limited to, mitochondria, chloroplasts, biologic membranes, cell or organelle walls, yeasts, bacteria, animal and plant cells and fragments of the above complex structures. In a fashion similar to the holding, trapping, confining or retaining of single enzymes, multi-enzyme systems, organelles and cells can be incorporated into reactors which are part of the container to achieve the desired chemical and biochemical reactions or a series of these reactions.