The present study was carried out to investigate the mass transfer kinetics and optimization during osmotic dehydration of beetroot. The samples were osmotically treated in different hypertonic sugar solution (55, 65 and 75 0 Brix) with salt concentration of 5 % (w/v), at different solution temperature (30, 45 & 60 °C). Mass transfer kinetics was modeled according to Magee and Azuara model, and...

Among tubers, Amorphophallus companulatus known as elephant foot yam is a highly potential tropical tuber crop containing a good amount of protein as well as starch, fiber, minerals and vitamins. Fresh yams are perishable in nature and deteriorate in quality on storage. The shelf life of Elephant foot yam can be increased if processed properly. The quality of the dehydrated product can be enhan...

The paper deals with the relationship betweeen the water content of washed Serratia marcescens and the thermodynamic activity of water, a,, over the range 0 < a, < 1.0. Two overlapping types of measurement are used: osmotic water exchange and water-vapour sorption. The data are given in terms of the equation w = Bm-' where w is water content, m is external osmolality (actual or effective, depen...

It is the oldest and most common traditional food preservation method known to dry by laying products under sun. However, if product in direct contact with sun light, there a decrease color nutrient values of product. To solve these problems, solar dryers have been developed which can be utilized due indirectly effect In this study, kiwi rings were dried using osmosolar dehydration as combinati...

Much effort has been devoted recently to means of conserving viability by reducing the activity of cells through the withdrawal of water. Chief of these methods of desiccation is the lyophil or freeze-drying technique. The rationale behind freeze-drying is the supposition that water can be removed from a cell without causing death if the water is removed directly from the frozen state-that is, ...

We report on the brain diffusion MR imaging findings in a neonate with severe hypernatremic dehydration, which resulted in cerebral edema (osmotic edema) and in apparent diffusion coefficient decrease, despite a careful and slow rehydration. This report provides in vivo insight into nervous cell response to osmotic challenge.

The progressive conversion of crystalline raffinose pentahydrate to its amorphous form by dehydration at 60 degrees C, well below its melting temperature, was monitored by X-ray powder diffraction over a period of 72 h. The presence of defects within the crystal structure and any amorphous structure created was determined computationally by a total diffraction method where both coherent long-ra...

Diabetic ketoacidosis (DKA) is the culmination of diabetes mellitus that results in unrestrained ketone body formation in the liver, metabolic acidosis, severe dehydration, shock and possibly death. Hepatic lipid metabolism becomes deranged with insulin deficiency and nonesterified fatty acids are converted to acetyl-co-enzyme A (acetyl-CoA) rather than being incorporated into triglycerides. Ac...

The drying or dehydration is the controlled heating of food products to evaporate quantified amount of moisture that is originally present in it. Drying of food products is essential to enhance the shelf life of the product without quality losses over an extended period of time. It is an energy intensive process. The fluidized bed dryer with heat pump is one of the efficient method to reduce th...