The effect of hydrophobic modifications on the adsorption isotherms of cassava starch

Carboxymethyl modification of konjac glucomannan affects water binding properties

“…Carboxymethylated modifications alter the granular surface structure of the KGM, which may affect its moisture adsorption. Our results are similar to the published data for carboxymethyl starch, the carboxymethyl modification of starch lead to changes of molecular structures and water adsorption (Cova, Sandoval, Balsamo, & Müller, 2010).…”

Hygroscopic behaviour of cassava flour from dry and water groups

“…However, the lowest P values (lower than 10%) for cassava flour from dry group were observed for the models of Oswin (4.5%), Halsey (5.6%), GAB (5.7%) and Smith (8.4%), and for cassava flour from water group, only Halsey, GAB and BET exhibited P values lower than 10% (3.4%, 5.1% and 9.6%, respectively). These models were also reported to be suitable to fit the adsorption isotherm of ten hydrophobically modified cassava starches (COVA et al, 2010) and for tapioca flour . For desorption, all tested models were also suitable for predicting the isotherm of both cassava flour with R 2 ranging from 0.85 to 0.99.…”

“…The water sorption data for cassava starch (MISHRA & RAI, 2006;PERDOMO et al, 2009;COVA et al, 2010;SOUZA et al, 2013) and cassava-flour-based baked product (KULCHAN et al, 2010) were described in the literature. In addition, this research also reported the hygroscopic behaviour of tapioca flour , another different kind of cassava product, which is produced with starch of high purity degree extracted from cassava roots.…”

Image Texture Analysis and Gas Sensor Array Studies Applied to Vanilla Encapsulation by Octenyl Succinic Anhydride Starches

“…This is reasonable since during the drying steps, the loss of the hydration of sample's components allows the intimate molecular contact which is needed for the adsorption process to occur, favored in this case by the OSA modification which enhances starch hydrophobicity (Cova et al, 2010).…”