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Kinetics of Water Sorption by Soybean and Pigeonpea Grains
Author(s) -
SINGH B. P. N.,
KULSHRESTHA S. P.
Publication year - 1987
Publication title -
journal of food science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.772
H-Index - 150
eISSN - 1750-3841
pISSN - 0022-1147
DOI - 10.1111/j.1365-2621.1987.tb05874.x
Subject(s) - sorption , cajanus , arrhenius plot , kinetics , activation energy , swelling , reaction rate constant , arrhenius equation , volume (thermodynamics) , chemistry , thermodynamics , materials science , agronomy , organic chemistry , adsorption , composite material , physics , biology , quantum mechanics
Kinetics of liquid water sorption by soybean ( Glycine max ) and pigeonpea ( Cajanus cajan ) seeds was studied at several temperatures. The data could be accurately correlated in terms of an empirical model involving a single rate constant. The temperature dependence of the rate constant followed Arrhenius relation. Swelling of grains due to water sorption was slightly less than the volume of water imbibed. This loss related to the energy of activation of the water sorption process.