打瓜籽热风干燥加工工艺研究

摘要

Seed watermelon, as a food and drug, is rich in nutrients, and has functional properties. In this paper, using Xinjiang seed watermelon as experimental materials, the technology of hot-air drying were studied. Three main process parameters including the hot wind speed, drying temperature, and Thickness were involved in the drying process. Based on the research of the hot-air drying curve, the best drying process were obtained. Based on orthogonal analysis, the optimum parameters of drying process were 1.8m/s hot wind speed, 70℃, 3.5mm thickness. Under this circumstance, seeds well-shaped were kept and color is normal.%打瓜籽含有丰富的营养物质，药食兼用，具有很好的保健功能，深受受到人们的青睐。本实验以新疆打瓜籽为实验材料，利用热风干燥技术干燥打瓜籽。干燥工艺涉及三个主要的工艺参数，分别是热风干燥风速、干燥温度和料层厚度。利用正交分析法对实验进行设计和优化，确定最佳的干燥工艺条件为热风干燥风速为1.8m/s，干燥温度为70℃，料层的厚度为3.5mm，此条件下，瓜子形状规整，颜色正常。