Relationships between determination methods anddefinitions of dietary fiber were reviewed and discussed withhistory of analysis methods.
1) The definition accepted at the Japanese Association for dietaryfiber Research, the definition of AOAC-AACC and the definitionestablished in Europe were introduced. There are items about aphysiological function in these definitions of dietary fiber.However, it is only the item of digestibility thatEnzymatic-Gravimetric Method deals with the definition. It isdifficult to make the physiological function in an alimentary canalreflect in assay.
2) Evaluation was carried out from the historical side ofEstablished methods and Official methods of determination. It wasdiscussed that what kind of DF which can be analyzed or cannot beanalyzed as quantitative analysis on the basis of the feature of ananalytic principle.
3) Newly Method A Simplified Modification Method of AOAC OfficialMethod 991.43 (Enzymatic Digestion under Constant pH) (J.AOAC Int.90, 217-237(2007)) which was authorized by Japanese Associationfor Dietary Fiber Research was introduced too.
Key words: dietary fiber, determination method, fructan, resistantstarch, Polydextrose, NDF, ADF |
