新疆轮台小白杏的太阳能制干工艺研究

Research of different drying process for white apricot of LUN-tai in XinJiang

以新疆轮台县主栽杏品种—小白杏作为实验材料,以单一温室装置为对照,采用自主研发的5HT-2农副产品太阳能干燥(solar-drying SD)装置,通过对比杏子在该装置与温室装置的干燥过程中水分含量、水分活度及色差等指标的变化情况,开展制备新疆轮台小白杏杏干的太阳能干燥实验研究。结果表明:SD装置有利于缩短杏子的干燥时间,SD装置中小白杏干燥时间为10d,较温室缩短1d;杏干优级品率高;温室小白杏杏干的失重率为28.9%、水分活度为0.45、色差值为L值为42.7,a值为20.1,b值为31.8。

With white apricot as the main materials that one of main cultivars in Luntai of Xinjiang,solar drying（SD） appliance was used as a single greenhouse device as controls.The main purpose on study was to investigate different solar-drying process and drying characteristics of solar-dryer for white apricot through comparing the apricot moisture content,water activity and the changes of color difference of the two kinds of devices in drying. The results showed that the drying-period of white apricot was 10d under SD appliance, compared with house drying,with the drying time shorter,the final product-quality were better.Weight loss ratio of white apricot was 28.9 %, water activity was 0.45, and L value, a value and b value were 42.7,20.1 and 3 ].8, respectively.