Thin-layer isothermal drying of fructose, maltodextrin, and their mixture solutions

B. Adhikari; T. Howes; A. K. Shrestha; W. Tsai; B. R. Bhandari

doi:10.1080/07373930600952768

Thin-layer isothermal drying of fructose, maltodextrin, and their mixture solutions

B. Adhikari, T. Howes, A. K. Shrestha, W. Tsai, B. R. Bhandari

Research output: Contribution to journal › Article › peer-review

Abstract

Solutions of fructose, maltodextrin (DE 5), and their mixtures at the ratios of 20:80, 40:60, 50:50, 60:40, and 80:20 were gelled with 1% agar-agar and dried under convective-conductive drying conditions. The thin slabs were maintained at isothermal drying condition of 30 and 50°C. Yamamoto's simplified method based on regular regime approach was used to calculate the (effective) moisture diffusivity. Both the drying rates and the moisture diffusivity exhibited strong concentration dependence. The concentration dependence was stronger in the case of fructose and fructose rich solutions. Both the moisture diffusivity and drying rates of the mixture solutions were enhanced due to plasticization of fructose on maltodextrin, which is explained through free volume theory.

Original language	English
Pages (from-to)	1415-1424
Number of pages	10
Journal	Drying Technology
Volume	24
Issue number	11
DOIs	https://doi.org/10.1080/07373930600952768
Publication status	Published - 2007

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abstract = "Solutions of fructose, maltodextrin (DE 5), and their mixtures at the ratios of 20:80, 40:60, 50:50, 60:40, and 80:20 were gelled with 1% agar-agar and dried under convective-conductive drying conditions. The thin slabs were maintained at isothermal drying condition of 30 and 50°C. Yamamoto's simplified method based on regular regime approach was used to calculate the (effective) moisture diffusivity. Both the drying rates and the moisture diffusivity exhibited strong concentration dependence. The concentration dependence was stronger in the case of fructose and fructose rich solutions. Both the moisture diffusivity and drying rates of the mixture solutions were enhanced due to plasticization of fructose on maltodextrin, which is explained through free volume theory.",

author = "B. Adhikari and T. Howes and Shrestha, {A. K.} and W. Tsai and Bhandari, {B. R.}",

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T1 - Thin-layer isothermal drying of fructose, maltodextrin, and their mixture solutions

AU - Adhikari, B.

AU - Howes, T.

AU - Shrestha, A. K.

AU - Tsai, W.

AU - Bhandari, B. R.

PY - 2007

Y1 - 2007

N2 - Solutions of fructose, maltodextrin (DE 5), and their mixtures at the ratios of 20:80, 40:60, 50:50, 60:40, and 80:20 were gelled with 1% agar-agar and dried under convective-conductive drying conditions. The thin slabs were maintained at isothermal drying condition of 30 and 50°C. Yamamoto's simplified method based on regular regime approach was used to calculate the (effective) moisture diffusivity. Both the drying rates and the moisture diffusivity exhibited strong concentration dependence. The concentration dependence was stronger in the case of fructose and fructose rich solutions. Both the moisture diffusivity and drying rates of the mixture solutions were enhanced due to plasticization of fructose on maltodextrin, which is explained through free volume theory.

AB - Solutions of fructose, maltodextrin (DE 5), and their mixtures at the ratios of 20:80, 40:60, 50:50, 60:40, and 80:20 were gelled with 1% agar-agar and dried under convective-conductive drying conditions. The thin slabs were maintained at isothermal drying condition of 30 and 50°C. Yamamoto's simplified method based on regular regime approach was used to calculate the (effective) moisture diffusivity. Both the drying rates and the moisture diffusivity exhibited strong concentration dependence. The concentration dependence was stronger in the case of fructose and fructose rich solutions. Both the moisture diffusivity and drying rates of the mixture solutions were enhanced due to plasticization of fructose on maltodextrin, which is explained through free volume theory.

UR - http://handle.uws.edu.au:8081/1959.7/532384

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DO - 10.1080/07373930600952768

M3 - Article

SN - 0737-3937

VL - 24

SP - 1415

EP - 1424

JO - Drying Technology

JF - Drying Technology

IS - 11

ER -

Thin-layer isothermal drying of fructose, maltodextrin, and their mixture solutions

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