杂交构树低温干燥特性及品质研究  

Study on Low Temperature Drying Characteristics and Quality of Hybrid Broussonetia papyrifera

作　　者：杨朝阳 徐鹏[2,3] 苑铁键 李晓琼 彭冬根 张振涛[2] 杨俊玲[2] 丁闯闯[2] 朱纪洲 YANG Zhaoyang;XU Peng;YUAN Tiejian;LI Xiaoqiong;PENG Donggen;ZHANG Zhentao;YANG Junling;DING Chuangchuang;ZHU Jizhou(School of Engineering and Construction,Nanchang University,Nanchang 330031,China;Technical Institute of Physics andChemistry,Chinese Academy of Sciences,Beijing 100190,China;Changzhou Borui Jieneng Environmental Technology Co.,Ltd.,Jiangsu Changzhou 213000,China;Jiangxi Shunfutang Traditional Chinese Medicine Slices Co.,Ltd.,Jiangxi Xiajiang 343000,China)

机构地区：[1]南昌大学工程建设学院,南昌330031 [2]中国科学院理化技术研究所,北京100190 [3]常州博睿杰能环境技术有限公司,江苏常州213000 [4]江西顺福堂中药饮片有限公司,江西峡江343000

出　　处：《中国农业科技导报》2024年第11期157-170,共14页Journal of Agricultural Science and Technology

基　　金：国家重点研发计划项目(2021YFD1000103,2022YFE0127200)。

摘　　要：杂交构树是一种富含粗蛋白的优质木本饲料资源。为探究杂交构树低温(60、70、80℃)传热传质机理及其与品质的关系,对不同铺料厚度(2、3、4 cm)的杂交构树进行热风干燥和真空干燥(真空压力20、40 kPa)试验,测定并分析不同干燥条件对杂交构树干燥特性及干燥品质的影响。结果表明,在相同干燥条件下,杂交构树热风干燥的干燥速率优于真空干燥,热风干燥能够缩短干燥时间的33.3%~46.7%;Page模型为杂交构树低温热风干燥和真空干燥的最佳预测模型;杂交构树明度(L)受温度和干燥压力影响显著(P<0.05);通过营养指标分析,提出适合杂交构树热风干燥的条件为2 cm、60℃,适合真空干燥的条件为2 cm、70℃、20 kPa。研究结果为杂交构树的干燥加工提供理论指导。Hybrid Broussonetia papyrifera is a high-quality woody feed resource rich in crude protein.In order to explore the heat and mass transfer mechanism of hybrid Broussonetia papyrifera at low temperature(60,70,80℃)and its relationship with quality,hot air drying and vacuum drying experiments(drying pressure 20,40 kPa)were carried out on hybrid Broussonetia papyrifera with different thickness(2,3,4 cm),and the effects of different drying conditions on drying characteristics and drying quality of hybrid Broussonetia papyrifera were measured and analyzed.The results showed that under the same drying conditions,the drying rate of hot air drying was better than that of vacuum drying,and the drying time could be shortened by 33.3%~46.7%.The Page model was the best moisture prediction model for low temperature hot air drying and vacuum drying.The brightness(L)value of hybrid Broussonetia papyrifera was significantly affected by drying temperature and drying pressure(P<0.05).By analyzing the nutritional indexes,the suitable drying conditions for hot air drying were 2 cm,60℃,and the suitable drying conditions for vacuum drying were 2 cm,70℃,20 kPa.Above results provided theoretical guidance for drying process of hybrid Broussonetia papyrifera.

关 键 词：杂交构树 低温干燥 干燥特性 色泽 品质 

分 类 号：S375[农业科学—农产品加工]