Modeling of hot air drying Pomacea canaliculata as a fishmeal protein substitute

• 作 者: LUO Du ZHANG Haitao MU Xidong GU Dangen XU Meng YANG Yexin SONG Hongmei LUO Jianren HU Yinchang
• 机 构: Pearl River Fisheries Research Institute,Chinese Academy of Fishery Sciences,Key Laboratory of Tropi
• 出 处: 第四届全国生物入侵大会暨青年创新论坛
• 发表日期: 2014年5期
• 关键词: apple snail dehydration snail meal modeling biological invasion

　　Snails are a kind of important aquatic products and dehydration is the main technique in production of snail meal.In this study to dry Pomacea canaliculata,we investigated the wet weight percentage of the nutritive material,examined the drying characteristics,established a drying kinetics model,and explored the effect of body morphology on drying efficiency.The results showed that the average weight percentage of the soft parts was 46.61±6.18%and its linear relationship with body mass was y = 0.4846x-0.39.The drying efficiency was significantly improved with drying temperature increasing from 60°C to 120°C.The drying time increased rapidly when the final moisture content approached its equilibrium value.The Hii et al.mod el was selected as the best model to describe the drying curves(R2> 0.99).It provided a relatively accurate prediction between the requirements of moisture content and drying time.There were statistically significant differences(p<0.01)in the drying time at 10.0%and 1.0%moisture content level among temperature groups.The drying efficiency was significantly correlated to the body mass.It was found that 100°C was an appropriate temperature to effectively dehydrate the fresh apple snails,whereas 60°C was not suitable when air velocity ≤ 0.5 m/s.