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Over the last years, algae have been increasingly used in Human food due their rich chemical and nutritional composition,particularly the high supply of essential nutrients to the human body such as protein and dietary fiber.Dietary fiber can be divided into two different types: soluble and insoluble. The characteristics of soluble dietary fiber are related tosome physical and chemical properties such as rehydration ratio and water holding capacity and are important in assigning thefunctional and organoleptic properties and in preventing some human pathologies such as cardiovascular disease and obesity.The present study aimed to investigate the influence of different drying conditions on the rehydration ratio and water holding capacityof three green algae, Codium vermilara, Codium tomentosum and Ulva lactuca.The methods used for the determination of water retention capacity and rehydration ratio were similar to those used in previousstudies (Susuki, T. et al., 1996). The algae were processed in a tray dryer and the drying conditions were: Temperature: 30ºC and40ºC; Relative Humidity: 28%47%; air velocity 1,9 m/s.In this work, it was concluded that higher drying temperature conditions originate lower rehydration ratio and consequent lowerwater holding capacity possibly due to a higher physical damage in the algae tissues. It was also observed that both Codium specieshave higher values for these two parameters than Ulva lactuca, under the same rehydration conditions

frontiers in marine science

Effects of different drying conditions on the rehydration ratio and water holding capacity properties in three different species of algae Ulva lactuca, Codium vermilara and Codium tomentosum