Effects of sodium alginate‐based coating pretreatment on drying characteristics and quality of heat pump dried scallop adductors

2019 ◽  
Vol 99 (10) ◽  
pp. 4781-4792 ◽  
Author(s):  
Qilong Shi ◽  
Yuan Tian ◽  
Lanlan Zhu ◽  
Ya Zhao
Author(s):  
S. K. Chin ◽  
Y. H. Lee ◽  
B. K. Chung

In this research, a Coulomb force assisted heat pump (CF-HP) dryer was invented for the purpose of improving the drying characteristics and product quality of biomaterials. As compared to heat pump drying alone, the assistance of Coulomb force in heat pump dryer enhanced the drying rates and effective moisture diffusivity of lemon slices up to 26%, which eventually shortened the total drying time to 40%. This saved the total energy consumption of HP drying by 31.5%. High retention of vitamin C and TPC were also found in CF-HP dried slices due to mild drying temperature and fast drying rate. Keywords: Coulomb force; Heat pump drying; Drying rate; Vitamin C; Total Phenolic Content (TPC).  


2016 ◽  
Vol 2016 ◽  
pp. 1-5 ◽  
Author(s):  
P. T. Akonor ◽  
H. Ofori ◽  
N. T. Dziedzoave ◽  
N. K. Kortei

The influence of different drying methods on physical and nutritional properties of shrimp meat was investigated in this study. Peeled shrimps were dried separately using an air-oven dryer and a tunnel solar dryer. The drying profile of shrimp meat was determined in the two drying systems by monitoring moisture loss over the drying period. Changes in color, proximate composition, and rehydration capacity were assessed. The rate of moisture removal during solar drying was faster than the air-oven drying. The development of red color during drying was comparable among the two methods, but solar-dried shrimps appeared darker (L⁎=47.4) than the air-oven-dried (L⁎=49.0). Chemical analysis indicated that protein and fat made up nearly 20% and 2% (wb) of the shrimp meat, respectively. Protein and ash content of shrimp meat dried under the two dryer types were comparable but fat was significantly (p<0.05) higher in oven-dried meat (2.1%), compared to solar-dried meat (1.5%). Although rehydration behavior of shrimp from the two drying systems followed a similar pattern, solar-dried shrimp absorbed moisture more rapidly. The results have demonstrated that different approaches to drying may affect the physical and nutritional quality of shrimp meat differently.


2016 ◽  
Vol 96 (10) ◽  
pp. 3596-3603 ◽  
Author(s):  
Zhen-zhen Cao ◽  
Lin-yan Zhou ◽  
Jin-feng Bi ◽  
Jian-yong Yi ◽  
Qin-qin Chen ◽  
...  

2000 ◽  
Vol 3 (2) ◽  
pp. 249-257 ◽  
Author(s):  
Manpreet Singh ◽  
U.S. Shivhare ◽  
J. Ahmed

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