Method of extracting food component, food inspection method and food inspection kit

摘要

Provided is a technique of extracting a component in a food from the food by using a reducing agent that is inexpensive and has a mild reducing action. A component in a food is extracted by mixing the food with an extractant containing a sulfite. In addition, the resultant food extract is brought into contact with a specific antibody that specifically recognizes a substance included in a specified ingredient of interest for inspection, to thereby inspect the presence or absence and/or the amount of a specified ingredient in a food by utilizing an immunological measurement method. Further provided is a food inspection kit for inspection of the presence or absence and/or the amount of a specified ingredient in a food, including: (1) an extractant and a sulfite to be added to the extractant, or an extractant including a sulfite added; and (2) an antibody that specifically recognizes a substance included in a specified ingredient of interest for inspection.

主权项

1. A food inspection method for inspection of a presence or absence and/or an amount of a specified ingredient in a food, comprising: bringing a food into contact with an extractant comprising 0.0001 to 1M of sulfite and 0.01 to 10 w/v % of sodium dodecyl sulfate (SDS) to prepare a food extract in which a component in the food is extracted; then bringing the food extract into contact with a specific antibody that specifically recognizes a substance comprised in a specified ingredient of interest for inspection; and inspecting a presence or absence and/or an amount of the specified ingredient in the food by immunochromatography or ELISA.