不同干燥方式对紫贻贝干品质的影响

    Effect of Different Drying Methods on the Quality of Dried Mytilus Edulis

    • 摘要: 研究了紫贻贝在不同干燥方式下水分含量变化、干燥速率、复水性、过氧化值和质构等指标的差异,并进行分析比较。在实验室内采用热风干燥、自然晾晒、冷风干燥和冷冻干燥进行紫贻贝干燥试验。结果表明:热风干燥快于冷风干燥、自然晾晒;至干燥完成时,自然晾晒紫贻贝干过氧化值数值高于热风干燥、冷风干燥;冷冻干燥复水性最好,冷风干燥次之;冷风干燥质构最好,冷冻干燥质构最差;冷冻干燥生产成本大。综合分析得出,冷风干燥具有干燥过程易控制、品质良好、适合大规模推广生产等优点,是一种较佳的紫贻贝干燥方式。

       

      Abstract: The variation of water content, drying rate, rehydration, peroxide value and texture of Mytilus edulis under different drying methods was studied and compared. Drying experiments of Mytilus edulis were carried out in laboratory by hot air drying, natural air drying, cold air drying and freeze drying. The results showed that hot air drying at was faster than cold air drying, natural air drying. The peroxide value of natural air-drying was higher than the hot airdrying, cold air drying when the drying was completed. The rehydration value of freeze-drying was the best, followed by cold air drying. The texture of cold air drying was the best, while freeze-drying was the worst. At the same time, the cost of freeze-drying was high. So it is concluded that cold air drying was a better drying method for Mytilus edulis, which with the advantages of easy control of drying process, good quality and suitable for mass production.

       

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