Abstract: An object of the present invention is to provide a method for producing a vegetable milk fermented product obtained by applying a protease or cellulase to vegetable milk, the vegetable milk fermented product has less bitterness without undergoing an enzyme inactivation step. A method for producing a vegetable milk fermented product, comprising: a first step of mixing vegetable milk and lactic acid bacteria to obtain a mixed liquid; and then a second step of fermenting the mixed liquid; wherein before the second step is completed, a step of adding a protease from Paenibacillus sp. or Trichoderma sp. to the vegetable milk or the mixed liquid (protease addition step) or a step of adding a cellulase from Trichoderma sp. (cellulase addition step) to the vegetable milk or the mixed liquid is performed.

Abstract: In a throttle body, a passive film and a corrosion-resistant film are stacked in that order on a substrate of aluminum. The passive film has a concave part on its corrosion-resistant film side. A metal layer is provided in the concave part. In shot blasting, upon collision of a blasting material against the corrosion-resistant film, a part of the blasting material is separated and adhered onto the resultant concaves to form the metal layer. For example, aluminum having a purity of not less than 98% is selected as the blasting material.

Abstract: In a throttle body, a passive film and a corrosion-resistant film are stacked in that order on a substrate of aluminum. The passive film has a concave part on its corrosion-resistant film side. A metal layer is provided in the concave part. In shot blasting, upon collision of a blasting material against the corrosion-resistant film, a part of the blasting material is separated and adhered onto the resultant concaves to form the metal layer. For example, aluminum having a purity of not less than 98% is selected as the blasting material.