Are industrially useful, it is to be understood that easily and efficiently in a secure manner suitable for food production, can be produced stably, solving problems of the present invention, ice crystallization inhibitor novel having properties and excellent functions The present invention is to provide substances. In addition, antibodies that bind specifically to the ice crystallization inhibitors, as well as compositions containing the ice crystallization inhibitor, food, biological samples protective agents and cosmetics, as well as the present invention, the ice crystallization inhibition it is also an object of the invention to provide a peptide, which is an indicator of a protein having. Ice crystallization inhibitor according to the present invention is characterized in that it consists of seed protein derived from the improved varieties of these or related varieties of legume Vigna vegetable or legume Vigna plants.本発明の解決課題は、工業的に有用であり、食品製造に適する安全な方法で容易に効率良く、安定的に製造できるものであって、優れた機能や性質を有する新規な氷結晶化阻害物質を提供することにある。また、本発明は、当該氷結晶化阻害物質へ特異的に結合する抗体、並びに、当該氷結晶化阻害物質を含む組成物、食品、生体試料保護剤および化粧品、並びに、氷結晶化阻害作用を有するタンパク質の指標となるペプチドを提供することも目的とする。本発明に係る氷結晶化阻害物質は、マメ科ササゲ属植物、もしくはマメ科ササゲ属植物の類縁品種、またはこれらの改良品種に由来する種子タンパク質からなることを特徴とする。
