Abstract
In this study, a heat pump dehumidifier (HPD) was designed and constructed to investigate the drying characteristics of horse mackerel experimentally. Effects of surface load, drying air temperature, sodium chloride (NaCl) content in the osmotic solution, tempering, evaporator bypass air ratio (BAR) and air velocity on the drying characteristics of horse mackerel have been investigated. Experimental results showed that a high surface load of 8 kg/m 2 resulted in lower drying rate (DR), and surface load of 6 kg/m 2 was preferred by considering specific moisture evaporation rate (SMER) and total colour difference (Δ E). DR increased with increase in the drying air temperature. In view of SMER and Δ E, temperature at 20–30 °C was optimum air temperature for drying horse mackerel by HPD. However, NaCl content in the osmotic solution and tempering played a minor role during drying horse mackerel by HPD. BAR of 0.6–0.8 obtained the maximal SMER. The optimum air velocity for drying horse mackerel by HPD was 2.0–3.0 m/s. Furthermore, HPD provided an alternative way to process intermediate moisture fillets.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
