611 results about "Specific enzyme" patented technology

A method is provided of localizing a drug action where the drug is present throughout a vascular system. The localization occurs to within a volume of blood in a blood vessel, the vascular system having an initial temperature substantially within a first temperature range. A temperature-specific enzyme is delivered throughout a vascular system including a volume of blood in a blood vessel, the temperature-specific enzyme having a working temperature within a prespecified temperature range that does not substantially overlap the first temperature range. A heat transfer element is delivered to a blood vessel in fluid communication with the volume of blood. The temperature of the heat transfer element is adjusted such that the volume of blood in the blood vessel is heated or cooled to the prespecified temperature range. In this way, the action of the temperature-specific enzyme is substantially limited to the volume of blood heated or cooled. In an alternative embodiment, the temperature-specific enzyme is localized to the volume of blood in the blood vessel, and the heat transfer element is disposed in fluid communication with the volume of blood in the blood vessel. The enzyme localization may occur by way of direct injection or by way of injection through a lumen of a catheter. The injection lumen of the catheter may be disposed at least partially adjacent or in combination with the heat transfer element and its associated inlet and outlet lumens.

Described are enzyme systems specific for acetone and methods of using these enzyme systems to detect acetone in biological or environmental samples. Biosensors containing these enzyme systems are disclosed, in which detection of acetone may be achieved by linking electrochemical, photometric, or other detection means to one or more acetone-specific enzyme reactions or pathways. Methods of using such acetone-specific biosensors include subject management of weight loss, disease detection, and bioavailability monitoring of therapeutics.

A synergistic composition is provided for controlling odor from waste products. The composition comprises a combination of nitrate salt, sulfide-consuming compound, pH-elevating compound, sulfide-oxidizing, nitrate-reducing bacteria, and sulfide-oxidizing enzyme. The method includes adding a sufficient amount of the composition to a waste stream to provide sufficient sulfide-consuming compound to effect immediate removal of sulfide. The composition incorporates a pH elevating compound, which both decreases the amount of gaseous H2S and puts the aqueous phase into a pH range where naturally occurring bacteria can more easily metabolize the sulfide. The composition also includes one or more nitrate salts which will accomplish longer term prevention of odors. Specific bacteria are incorporated into the formulation to insure that the nitrate has the right type and amount of bacteria present to prevent formation of and / or consume sulfide. Specific enzymes are incorporated into the formulation to promote oxidation of sulfide.

The present invention relates to a process for preparing hard butter having high SOS content by mixing oil for preparing butter with fatty acid or fatty acid ester, adding 1,3 regio-specific enzymes to the obtained mixture to carry out interesterification, distilling the obtained reactants to remove fatty aicd, ethyl ester, and monoglyceride and diglyceride formed after the reaction and fractionally extracting the obtained reactants to separate a solid phase, and to cocoa butter equivalents prepared by the hard butter and a process for preparing the same in which the cocoa butter equivalents can replace existing import cocoa butter equivalents with 1 : 1 because of its equivalent chemical properties, and have no difference in taste and properties with natural cocoa butter and also have lower trans fatty acid. Hard butter according to the present invention can make desired triglyceride structure in oil based on the reaction conditions and have a improved purity and yield in the whole process by recycling all of byproduct other than major product in the distillation and fractional distillation process and is eco-friendly matter by using the enzymatic interesterification reaction, and also cocoa butter equivalents made by the hard butter is characterized in replacing existing import cocoa butter equivalents with 1 : 1 because of its equivalent chemical composition and properties in the production of chocolate with no difference in taste.