Exploring effects of slice thickness, pretreatment and drying air temperature on nutritional, functional and pasting properties of Gardenia erubescens Stapf. & Hutch. fruit powder

Convective drying of Gardenia erubescens fruits: Effect of pretreatment, slice thickness and drying air temperature on drying kinetics and product quality

“…Fruit samples of G. erubescens (25 kg) were purchased from a local market in Wiaga, located in the Builsa-North Municipal of the Upper East region, Ghana. The fruits were transported to the laboratory and were processed according to the procedure described previously by Korese & Achaglinkame [ 24 ] and Korese et al [ 25 ]. The average initial moisture content of fresh samples was 85.80 ± 0.59 % (wet basis, w.b.).…”

“…nutritional and color) of food products, pretreatments such as blanching and dipping in solutions of food-grade chemicals like ascorbic acid, and citric acid, among others have been widely used in the food industry and homes [ 22 , 23 ]. A recent study by Korese & Achaglinkame [ 24 ] has reported the effect of pretreatment and drying air temperature on proximate and mineral compositions, and functional and pasting properties of G. erubescens fruit slices. In a different study, Korese et al [ 25 ] also established the possibility of storing dried slices and powders of the fruits under room conditions using different kinds of polyethylene bags and laminated paper.…”

Effect of different pretreatments and drying methods on the drying kinetics and quality of turmeric (Curcuma longa) rhizomes

“…The turmeric rhizomes were washed thoroughly under tap water and then cut to a thickness of 3 mm using a Ritter E16 slicer (Ritter GmbH, Germany). The turmeric samples were then subjected to two pretreatment options: steam blanching at 100℃ for 3 min and immersing in 2% w/v ascorbic acid for 3 min (Korese and Achaglinkame, 2022). A sample weight of 300g was pretreated at a time for each option and allowed to drain for 1 min before drying.…”

“…Gan et al (2017) in their study also reported the effects of drying and blanching in hot water on the retention of bioactive compounds in turmeric. Korese and Achaglinkame (2022) revealed that drying Gardenia erubescens at 60 °C without pretreatments preserves most quality parameters. However, there is currently a paucity of information regarding hot air drying (HAD) and forced air solar drying (FASD) of turmeric rhizomes and the use of pretreatment to minimize quality losses.…”

Drying of Apricot Using Ambient Air, Solar Water Collector Assisted Drying System and Solar Air Collector Assisted Drying System

“…Reliable drying air temperature for agricultural products varies between 35°C-77°C. This is an important point in the design of solar energy systems (Orikasa et al 2008;Simal et al 2005;Korese and Achaglinkame, 2022). A sun dryer consists of a heater in which solar energy is collected in terms of structure and storage areas where the material to be dried.…”