Searching for the Definition, Terminology and Classification of Dietary Fiber and the New Proposal from Japan

S. Kiriyama, K. Ebihara, S. Ikegami, S. Innami, Yoko Katayama, F. Takehisa
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引用次数: 10

Abstract

The present review refers to the proposal for resolving the confusion on concept of dietary fiber in the world. The working committee established by Japanese Association for Dietary Fiber Research (JDF) in 1997 first overviewed the changes of discussions on the definition, terminology and classification of dietary fiber conducted in different countries since 1972. Further reviewing has been carried out concerning the physiological significance and classification of new indigestible substances appearing year by year with the proceedings of the researches in this field. Based on the discussions, the committee members agreed that the term "dietary fiber" is inappropriate as a term which covers all indigestible components. The "luminacoids" was designed, as a comprehensive term that covers all such components, including dietary fiber in the conventional meaning. This comprehensive terminology should be classified into starch and non-starch components. Dietary fiber is a major component of non-starch substances and can be sub-classified into polysaccharides and lignin. Thus, the definition of "luminacoids" is proposed as follows: "dietary components which are not digested and/or absorbed in the human small intestine and which exert physiological effect that are useful in maintaining good health via the gastrointestinal tract". After presenting the proposal to the Annual Meeting of JDF in 1998 and 1999, it was finally approved at the 6th Annual Meeting in November 2000. We further describe the significance of new proposal by JDF , and also compare and discuss about these advantages and drawbacks of each revised definition of dietary fiber proposed currently by five international organizations and other investigators.
膳食纤维的定义、术语、分类及日本的新建议
本文就解决膳食纤维概念上的混乱提出了一些建议。日本膳食纤维研究协会(JDF)于1997年成立的工作委员会首先概述了1972年以来各国对膳食纤维的定义、术语和分类的讨论变化。随着这一领域的研究进展,对逐年出现的新难消化物质的生理意义和分类作了进一步的综述。在讨论的基础上,委员会成员一致认为,“膳食纤维”一词不适用于涵盖所有难以消化的成分。“类光物质”被设计成一个综合的术语,涵盖了所有这些成分,包括传统意义上的膳食纤维。这个综合术语应该分为淀粉和非淀粉成分。膳食纤维是非淀粉物质的主要成分,可分为多糖和木质素。因此,"类光酸"的定义建议如下:"不经人体小肠消化和(或)吸收,并通过胃肠道发挥有利于保持身体健康的生理作用的膳食成分"。在1998年和1999年两次向JDF年会上提交提案后,最终在2000年11月的第6届年会上获得通过。我们进一步阐述了JDF新建议的意义,并比较和讨论了目前五个国际组织和其他研究者提出的每一种修订膳食纤维定义的优点和缺点。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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