食品科学2017，Vol.38Issue(15)：69-76,8.DOI:10.7506/spkx1002-6630-201715012
远红外辐射温度对金银花干燥特性及品质的影响
Effect of Far-Infrared Radiation Temperature on Drying Characteristics and Quality of Flos Lonicerae
摘要
Abstract
The aim of this study was to investigate the effect of radiation temperature during far-infrared radiation drying on drying characteristics,microstructure,nutrient components and color of Flos Lonicerae.Drying of Flos Lonicerae was carried out with a far-infrared radiation dryer.The results showed that the increase in radiation temperature could significantly improve the drying rate and shorten the drying time.Only the falling-rate period appeared during the drying process,suggesting that far-infrared radiation drying of Flos Lonicerae is controlled by internal diffusion.The values of effective moisture diffusivity ranged from 1.13 × 10-10 to 4.57 × 10-10 m2/s,which increased with radiation temperature.The increase in radiation temperature could result in the formation of more micro-runnels of larger size in the structure of dried Flos Lonicerae,which is beneficial to moisture diffusion during the drying process.With increasing radiation temperature,the contents of chlorogenic acid,luteoloside and loganin showed an initial increase followed by a decline.The L* value increased first and then decreased,and the opposite trend was observed for a* and △E values.At a radiation temperature of 240 ℃,both high drying rate and a good quality product could be achieved by fixing other drying parameters in this study.关键词
干燥/远红外辐射/辐射温度/金银花/干燥特性Key words
drying/far-infrared radiation/radiation temperature/Flos Lonicerae/drying characteristics分类
轻工纺织引用本文复制引用
李晓芳,刘云宏,马丽婷,于慧春,檀茜茜,刘建学..远红外辐射温度对金银花干燥特性及品质的影响[J].食品科学,2017,38(15):69-76,8.基金项目
国家自然科学基金联合基金项目(U1404334) （U1404334）
河南省高等学校青年骨干教师资助计划项目(2015GGJS-048) （2015GGJS-048）
河南省自然科学基金面上项目(162300410100) （162300410100）
河南省高校科技创新团队支持计划项目(16IRTSTHN009) （16IRTSTHN009）
