G - Physics – 01 – R
Patent
G - Physics
01
R
G01R 33/60 (2006.01) G01N 24/10 (2006.01)
Patent
CA 2437295
A method is provided in which a correlation is made between a parameter indicating modification of a sampled malt in a germination process in which barley is germinated, and an ESR signal intensity of the sampled malt. The parameter is determined, in advance, by general analytical methods including chemical analytical methods. The ESR signal intensity is determined by measuring a peak height of spectrum of the sampled malt at a g value at which an unpaired electron derived from a carbon radical is resonant. The ESR signal intensity is a ratio of the measured peak height of spectrum to a peak height of spectrum of a reference, per a unit weight of the sampled malt. The modification state of the sampled malt can be evaluated based on the ESR signal intensity determined by electron spin resonance spectrometry. Kohlbach index, Hartong index at 45°C, diastatic power, .beta.-glucan content, viscosity, and friability may be used as the parameter.
Selon l'invention, pour évaluer l'état de dissolution du malt collecté au cours de la germination de l'orge sur la base de données analytiques obtenues par spectrométrie par résonance du spin électronique, on détermine préalablement la corrélation entre les données analytiques obtenues au moyen de procédés analytiques courants, notamment des procédures analytiques chimiques, et l'intensité du signal ESR (résonance électronique de spin) déterminée par concassage du malt collecté, on mesure la hauteur du spectre à g (c'est-à-dire, la position de résonance d'un électron non apparié issu du radical de carbone) et on détermine le ratio relatif de ladite hauteur du spectre et du poids standard par unité du spectre du malt collecté. Les données analytiques comprennent l'indice Kolbach, VZ45 DEG C, la puissance enzymatique, le beta -glucane, la viscosité et la volatilité.
Kaneda Hirotaka
Nishita Naoko
Takoi Kiyoshi
Yoshimura Junko
Sapporo Breweries Ltd.
Smart & Biggar
LandOfFree
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