ABSTRACT
Three banana varieties (Omini Red, Cavendish and Cooking banana) were transversely cut into 10 mm slices, pretreated in sucrose solution of 52, 60 and 68°B and maintained at 25°C for 12 hours. Both fresh and pre-osmosed banana slices were subsequently oven-dried at 60°C for 72 hours. Adsorption isotherms of fresh and preosmosed oven-dried banana slices were determined at 20 and 40°C using gravimetric–static method. Suitability of eight sorption models in describing the adsorption data was tested. Moreover, isosteric heat of sorption of both fresh and pre-osmosed oven-dried bananas was determined using Clausius–Clapeyron equation. Adsorption isotherms of fresh and pre-osmosed oven-dried banana slices gave type I (J–shaped) isotherms. Isotherms were affected by temperature and pretreatment sucrose solution concentration. Crossing of isotherms occurred at aw~0.55-0.70. Among the eight models, tested, Guggenheim-Anderson-de Boer (GAB) model gave the best fit. Calculated GAB monolayer moisture (Mm) content (9.80–20.8% d.b.) decreased with increase in temperature. Generally GAB Mm content increased with increase in total solids (%) content of pre-osmosed banana slices. Isosteric heat of sorption increased with decreased moisture content in banana slices.
O.O., K (2021). Adsorption Isotherms And Heat Of Sorption Of Fresh And Pre-Osmosed Oven-Dried Bananas. Afribary. Retrieved from https://afribary.com/works/adsorption-isotherms-and-heat-of-sorption-of-fresh-and-pre-osmosed-oven-dried-bananas
O.O., K.O.Falade* "Adsorption Isotherms And Heat Of Sorption Of Fresh And Pre-Osmosed Oven-Dried Bananas" Afribary. Afribary, 10 May. 2021, https://afribary.com/works/adsorption-isotherms-and-heat-of-sorption-of-fresh-and-pre-osmosed-oven-dried-bananas. Accessed 22 Nov. 2024.
O.O., K.O.Falade* . "Adsorption Isotherms And Heat Of Sorption Of Fresh And Pre-Osmosed Oven-Dried Bananas". Afribary, Afribary, 10 May. 2021. Web. 22 Nov. 2024. < https://afribary.com/works/adsorption-isotherms-and-heat-of-sorption-of-fresh-and-pre-osmosed-oven-dried-bananas >.
O.O., K.O.Falade* . "Adsorption Isotherms And Heat Of Sorption Of Fresh And Pre-Osmosed Oven-Dried Bananas" Afribary (2021). Accessed November 22, 2024. https://afribary.com/works/adsorption-isotherms-and-heat-of-sorption-of-fresh-and-pre-osmosed-oven-dried-bananas