公开(公告)号：US20230147626A1

公开(公告)日：2023-05-11

申请号：US17914956

申请日：2021-03-19

Applicant: NATIONAL INSTITUTE FOR MATERIALS SCIENCE

Inventor： Ryo NAKAKUBO ,  Mitsuyoshi ISHIDA ,  Masanori TOHNO ,  Hisami KOBAYASHI ,  Genki YOSHIKAWA ,  Kosuke MINAMI ,  Gaku IMAMURA ,  Hideki MATSUZAKA ,  Takahiro NEMOTO

IPC: G01N33/00

CPC classification number: G01N33/0047

Abstract: An object of the present invention is to make it possible to easily evaluate silage fermentation quality on site or the like. In one embodiment of the present invention, a gas generated from silage is applied to a surface stress sensor, and the amount of either one of organic acids and nitrogen-containing compounds contained in the silage is determined. The surface stress sensor can detect trace components in a gas by a simple device configuration and in simple procedures. Therefore, by utilizing the fact that relationship between the content of these components and the fermentation quality is known, the evaluation of fermentation quality can be easily realized by the above measurement.

公开(公告)号：US20230273183A1

公开(公告)日：2023-08-31

申请号：US18015792

申请日：2021-07-12

Applicant: National Institute for Materials Science

Inventor： Ryoh NAKAKUBO ,  Mitsuyoshi ISHIDA ,  Genki YOSHIKAWA ,  Kosuke MINAMI ,  Gaku IMAMURA ,  Hideki MATSUZAKA ,  Takahiro NEMOTO

IPC: G01N33/487

CPC classification number: G01N33/487

Abstract: An object of the present invention is to make it possible to easily determine a presence or absence of ketosis and/or the possibility of ketosis in an animal on site or the like. Another object of the present invention is to provide an apparatus for performing the determination. A method for determining ketosis according to one embodiment of the present invention includes providing gas detection means with a gas generated from a body fluid collected from an animal (except for humans), and determining ketosis of the animal based on a composition of the gas generated from the body fluid using a response of the gas detection means to the gas generated from the body fluid.