Studies on Colorants in Saké

(VIII) Color Development of Saké by Various Treatments

Abstract

Changes of coloring matters in sake were investigated after various treatments.
Addition of ferric ion to sake increased the amount of ferrichrysen and other ferrichrome compounds in saké. Exposure of saké to sunlight or phothreflector lamp caused deferri-ferrichromes to decompose.
It seems that melanoidin-like substances were formed in saké by exposure to light or storage at 37°C for 10 days.
Light of wavelength from 280 mμ to 380 mμ was most effective for color development of saké.