The purpose of this study was to elucidate the effect of sugar
composition on water sorption and softening properties of cookie.
For this purpose, three types of sugar composition (sugar alone,
sugar-trehalose, and sugar-sorbitol) were employed in cookie
preparation, and water sorption and Ts-depression behaviour of
cookie samples were investigated.
The reason why trehalose and sorbitol were used in the cookie preparation is that the Tg of trehalose
and sorbitol is, respectively, much higher and lower than that
of sucrose (Kawai, Hagiwara, Takai, & Suzuki, 2005; Roos, 1995).
In addition, the relationship between Ts of the cookie samples and Tg
of the sugar and/or sugar alcohol mixtures was investigated in
order to predict the softening behaviour of cookie.