“…bound water, percent of non-freezable or bound water, isosteric heat of sorption, enthalpy, entropy, and spreading pressure are useful in the characterization, prediction of the shelf life, selection of storage conditions (temperature and relative humidity) and appropriate packaging materials, the modeling of drying operations and the design of drying equipment (Arogba, 2001;Arslan-Tontul, 2019;Moussaoui, Bahammou, Idlimam, Lamharrar, & Abdenouri, 2019).Studies have been conducted on sorption isotherm of biscuits prepared from various formulations such as wheat oat meal and passion fruit flour-based biscuit (Sampaio, Marcos, Moraes, & Perez, 2009), β-glucan rich composite biscuit (Panjagari, Singh, Ganguly, & Indumati, 2015) and oat meal biscuit (McMinn, McKee, & Magee, 2007). In addition to that, few articles discussed the effect of sugar composition, oil content and fructooligosaccharides addition on sorption isotherm (Handa, Goomer, & Siddhu, 2012;Hao, Lu, & Ge, 2014;Kawai, Toh, & Hagura, 2014).…”