< Topic >This invention contained mannoorigo , designated that for food material which can be used for wide use is obtained with simple method as purpose.SolutionsTo remove the endosperm from the coconut fruit, crushing the liquid separating from those which are made slurry condition hard and until oil and fat amount 1 weight % is below, it removes fat, in order the mannan which is included this, in this adding water to be disassembled, processing the solid which can, or when, the aforementioned removal of fat is not done, operating the mannan disassembly enzyme which does not have lipase activity substantially it obtains the mannoorigo content for food composition.【課題】本発明は、マンノオリゴ糖を含有し、広い用途に使用できる食用素材を簡便な方法で得ることを目的とした。【解決手段】ココナッツ果実から胚乳を取り出し、潰してスラリー状にしたものから固液分離して得られる固形物を油脂分が1重量%以下になるまで脱脂し、これを、これに含まれるマンナンが加水分解されるように処理するか、又は、前記脱脂をしない場合、リパーゼ活性が実質的に無いマンナン分解酵素を作用させてマンノオリゴ糖含有食用組成物を得る。