Abstract: A method of producing isopropyl alcohol includes: culturing an isopropyl alcohol-producing Escherichia coli under a bacterial cell growth condition in which the Escherichia coli stably proliferates in an isopropyl alcohol production period while continuously supplying a substrate solution to a culture tank and continuously removing a product-containing culture solution from the culture tank, the substrate solution containing a plant-derived raw material, the number of cells of the isopropyl alcohol-producing Escherichia coli in the culture tank being maintained during the culturing, and the isopropyl alcohol-producing Escherichia coli having isopropyl alcohol production ability introduced or modified by genetic recombination; bringing the isopropyl-alcohol-producing Escherichia coli into contact with the plant-derived raw material in the culture tank to produce isopropyl alcohol; and recovering the isopropyl alcohol produced by the isopropyl alcohol-producing Escherichia coli from the culture solution that co

Abstract: Provided is a method for producing lactic acid, which includes: obtaining D-lactic acid or L-lactic acid by carrying out lactic acid fermentation using a lactic acid-producing microorganism under a pressurized condition that exceeds normal pressure and is capable of maintaining lactic acid production activity of the lactic acid-producing microorganism.

Abstract: A method of producing isopropyl alcohol includes: culturing an isopropyl alcohol-producing Escherichia coli under a bacterial cell growth condition in which the Escherichia coli stably proliferates in an isopropyl alcohol production period while continuously supplying a substrate solution to a culture tank and continuously removing a product-containing culture solution from the culture tank, the substrate solution containing a plant-derived raw material, the number of cells of the isopropyl alcohol-producing Escherichia coli in the culture tank being maintained during the culturing, and the isopropyl alcohol-producing Escherichia coli having isopropyl alcohol production ability introduced or modified by genetic recombination; bringing the isopropyl-alcohol-producing Escherichia coli into contact with the plant-derived raw material in the culture tank to produce isopropyl alcohol; and recovering the isopropyl alcohol produced by the isopropyl alcohol-producing Escherichia coli from the culture solution that co

Abstract: A method for producing an amide compound from a nitrile compound in an aqueous medium in the presence of a catalyst having a nitrile hydratase activity wherein the concentration of benzene in the aqueous medium is 4.0 ppm or less and a method for producing an amide-based polymer excellent in quality from the amide compound. Also provided are a method for more efficiently producing an acrylamide with higher quality by a microbial catalyst containing a nitrile hydratase and the like and a method for producing an acrylamide-based polymer, which is excellent in hue, has a good balance between water solubility and high molecular weight and is excellent in quality.

Abstract: Provided is a method for producing lactic acid, which includes: obtaining D-lactic acid or L-lactic acid by carrying out lactic acid fermentation using a lactic acid-producing microorganism under a pressurized condition that exceeds normal pressure and is capable of maintaining lactic acid production activity of the lactic acid-producing microorganism.

Abstract: A method for producing an amide compound from a nitrile compound in an aqueous medium in the presence of a catalyst having a nitrile hydratase activity wherein the concentration of benzene in the aqueous medium is 4.0 ppm or less and a method for producing an amide-based polymer excellent in quality from the amide compound. Also provided are a method for more efficiently producing an acrylamide with higher quality by a microbial catalyst containing a nitrile hydratase and the like and a method for producing an acrylamide-based polymer, which is excellent in hue, has a good balance between water solubility and high molecular weight and is excellent in quality.

Abstract: [Problems] The present invention provides a method for efficiently producing a corresponding amide compound from a nitrile compound by a reaction using a nitrile hydratase and a method for producing an amide-based polymer excellent in quality from the amide compound. In addition, the present invention provides a method for more efficiently producing an acrylamide with higher quality by a microbial catalyst containing a nitrile hydratase and the like and a method for producing an acrylamide-based polymer, which is excellent in hue, has a good balance between the water solubility and the high molecular weight and is also excellent in quality, by using the acrylamide. [Means for Solving the Problems] The method for producing an amide compound of the present invention is characterized in that in a method for producing an amide compound from a nitrile compound in an aqueous medium in the presence of a catalyst having a nitrile hydratase activity, the concentration of benzene in the aqueous medium is 4.