Dietary fiber/ja: Difference between revisions

Dietary fiber/ja
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==定義==
==Definition==
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Dietary fiber is defined to be plant components that are not broken down by human digestive enzymes. In the late 20th century, only [[lignin]] and some [[polysaccharide]]s were known to satisfy this definition, but in the early 21st century, [[resistant starch]] and [[oligosaccharide]]s were included as dietary fiber components. The most accepted definition of dietary fiber is "all polysaccharides and lignin, which are not digested by the endogenous secretion of the human digestive tract". Currently, most animal nutritionists are using either a physiological definition, "the dietary components resistant to degradation by mammalian enzymes", or a chemical definition, "the sum of non-starch polysaccharides (NSP) and lignin".
食物繊維とは、人間の消化酵素では分解されない植物成分であると定義されている。20世紀後半には、[[lignin/ja|リグニン]]と一部の[[polysaccharide/ja|多糖類]]のみがこの定義を満たすことが知られていたが、21世紀初頭には[[resistant starch/ja|レジスタントスターチ]][[oligosaccharide/ja|オリゴ糖]]も食物繊維成分に含まれるようになった。食物繊維の定義として最も受け入れられているのは、「ヒト消化管の内因性分泌物によって消化されないすべての多糖類とリグニン」である。現在、ほとんどの動物栄養学者は「哺乳類の酵素で分解されにくい食物成分」という生理学的定義か、「非デンプン性多糖類(NSP)とリグニンの合計」という化学的定義のいずれかを用いている。
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[[Category:Dietary supplements]]
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