POWDER FOOD CONTAINING INSOLUBLE DIETARY FIBER-CONTAINING FOOD MATERIAL INCLUDING LOCALIZED INSOLUBLE DIETARY FIBER REGIONS, AND BEVERAGE CONTAINING SAID POWDER FOOD

摘要

The present invention relates to a powdery food comprising a foodstuff containing insoluble dietary fibers comprising an insoluble dietary fiber localized site, the powdery food satisfying (1) and (2), and at least one of (3-1) or (3-2):(1) insoluble dietary fiber content is 5 mass% or more by dry mass;(2) number average particle size (MN2) of particles in the powdery food after ultrasonication using laser diffraction particle size distribution analyzer in ethanol is below 30 µm;(3-1) N (α/ β) is 0.40 or more;α: particle number having unevenness degree below 0.6 and circularity degree below 0.2 by method A;β: particle number having unevenness degree below 0.6 and circularity degree below 0.2 by method A;method A: 10,000 particles of fine particles and/or fine particle composites in the powdery food before ultrasonication are analyzed using particle shape image analyzer in isopropyl alcohol; and(3-2) regression coefficient a of regression line y = ax + b determined by a least squares method is above 0.35, provided that the circularity degree in a planar particle image measured by method A is one variate x and unevenness degree is the other variate y.