Abstract: The present invention refers to a portable device for identification of surgical items with magnetic markers, method for identifying surgical objects with magnetic markers and system for the prevention of retention of surgical items with magnetic markers. The present invention can be used in surgical centers, with the aim of detecting surgical elements/objects (5) retained in the patient after surgery. The present invention aims to provide instrumental support in object location surgical (5) retained inside the body cavities for detecting artifacts forgotten after a surgical procedure, by means of device and specific objects and method and system for their identification.

Abstract: The present invention refers to a portable device for identification of surgical items with magnetic markers, method for identifying surgical objects with magnetic markers and system for the prevention of retention of surgical items with magnetic markers. The present invention can be used in surgical centers, with the aim of detecting surgical elements/objects (5) retained in the patient after surgery. The present invention aims to provide instrumental support in object location surgical (5) retained inside the body cavities for detecting artifacts forgotten after a surgical procedure, by means of device and specific objects and method and system for their identification.

Abstract: The present invention provides a transformant into which has been incorporated DNA for coding a foreign protein having lactate dehydrogenase activity and provided with pyruvic acid substrate affinity that equals or exceeds the pyruvic acid substrate affinity of the pyruvate decarboxylase inherent in the host organism. Said transformant can stably mass-produce lactic acid inside a host organism having the pyruvate decarboxylase gene.

Abstract: This invention provides a method for producing a lactic acid ester that can minimize input energy at the time of production, that can reduce chemical costs, and that can minimize equipment costs. This method comprises steps of: performing an esterification reaction in a reaction solution containing ammonium lactate obtained via fermentation and alcohol with an ammonia concentration of 1.0% by weight or lower; and recovering the lactic acid ester synthesized in the above step.

Abstract: Lactic acid with high optical purity that has not previously been achieved is produced. It has been found that the optical purity of lactic acid is reduced as the racemization reaction of lactic acid proceeds when lactic acid coexists with glycerol. By reducing the amount of glycerol prior to concentrating lactic acid by heating, the optical purity of lactic acid after concentration by heating can be maintained at a high level.

Abstract: This invention provides a method for producing a lactic acid ester that can minimize input energy at the time of production, that can reduce chemical costs, and that can minimize equipment costs. This method comprises steps of: performing an esterification reaction in a reaction solution containing ammonium lactate obtained via fermentation and alcohol with an ammonia concentration of 1.0% by weight or lower; and recovering the lactic acid ester synthesized in the above step.

Abstract: Lactic acid with high optical purity that has not previously been achieved is produced. It has been found that the optical purity of lactic acid is reduced as the racemization reaction of lactic acid proceeds when lactic acid coexists with glycerol. By reducing the amount of glycerol prior to concentrating lactic acid by heating, the optical purity of lactic acid after concentration by heating can be maintained at a high level.

Abstract: The present invention provides a transformant into which has been incorporated DNA for coding a foreign protein having lactate dehydrogenase activity and provided with pyruvic acid substrate affinity that equals or exceeds the pyruvic acid substrate affinity of the pyruvate decarboxylase inherent in the host organism. Said transformant can stably mass-produce lactic acid inside a host organism having the pyruvate decarboxylase gene.

Abstract: The present invention relates to a method of expressing a gene by inserting the genome into a host organism using genetic engineering techniques. The present invention further relates to a novel promoter, a recombinant vector containing the promoter and a target gene, a transformant containing the recombinant vector, and a method of producing a useful gene product or useful substance using the transformant.