西洋菜热泵干燥特性试验研究

在热泵干燥下，采用正交试验和响应面试验设计方法，研究温度、风速、热烫时间对西洋菜干燥特性影响。结果表明，沸水中热烫约3.3 min，热风温度为50℃，风速为2.88 m＇s-1条件下，在干燥室中干燥2~3 h后，西洋菜能达到理想干燥效果（含水率约为8%），干燥后的物料颜色变成深绿色，有较浓郁香气，所得干燥工艺对实际生产具有指导意义。...

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Bibliographic Details
Published in东北农业大学学报 Vol. 45; no. 11; pp. 116 - 123
Main Author 张艳来 龙成树 尹凯丹 龚丽 刘清化 李秀平
Format Journal Article
LanguageChinese
Published 广东省现代农业装备研究所，广州 510630%广东农工商职业技术学院,广州,510507%广东省现代农业装备研究所,广州,510630 2014
中南林业科技大学机电工程学院，长沙 410004
Subjects
响应面
干燥特性
热泵
西洋菜
watercress (Nasturtium officinale)
西洋菜
响应面
heat pump
热泵
drying characteristics
干燥特性
response surface
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ISSN1005-9369

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Summary:在热泵干燥下，采用正交试验和响应面试验设计方法，研究温度、风速、热烫时间对西洋菜干燥特性影响。结果表明，沸水中热烫约3.3 min，热风温度为50℃，风速为2.88 m＇s-1条件下，在干燥室中干燥2~3 h后，西洋菜能达到理想干燥效果（含水率约为8%），干燥后的物料颜色变成深绿色，有较浓郁香气，所得干燥工艺对实际生产具有指导意义。
Bibliography:ZHANG Yanlai, LONG Chengshu, YIN Kaidan, GONG Li, LIU Qinghua, LI Xiuping （1. School of Mechanical and Electrical Engineering, Central South University of Forestry and Technology, Changsha 410004, China; 2. Guangdong Agricultural Machinery Research In- stitute, Guangzhou 510630, China; 3. Guangdong AIB Polytechnic College, Guangzhou 510507, China）
23-1391/S
watercress （Nasturtium officinale）; heat pump; drying characteristics; response surface
The research was to examine effects that temperature, wind speed and blanching time have on the characteristics of watercress in the heat pump drying conditions. In the study, both the orthogonal experiment and the response surface design techniques were used. The experiment results indicated that watercress could reach ideal degree of drying （water content about 8%） if it was blanched in boiling water for 3.3 min, in 50℃and dried 2 to 3 h with the wind velocity was 2.88 m＇s-1 in the desiccation room of heat pump. The color of watercress changed into dark green and it had
ISSN:1005-9369