PROBLEM TO BE SOLVED: To provide an oligosaccharide having a novel structure, and a production method for the same.SOLUTION: This invention provides a &bgr-D-fructofuranosyl-(2&larr&rarr1)-&bgr-D-glucopyranoside represented by formula (1).【課題】新規な構造を持つオリゴ糖、並びに製造方法の提供。【解決手段】式(1)で表されるβ-D-フルクトフラノシル-(2←→1)-β-D-グルコピラノシド。【選択図】なし