| 预处理方式及干燥温度对养心菜热风干燥特性与品质的影响 |
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| 引用本文： | 孙庆运,张宗超,贾振超,韩梦龙,赵峰. 预处理方式及干燥温度对养心菜热风干燥特性与品质的影响[J]. 食品工业科技, 2021, 42(13): 210-215. DOI: 10.13386/j.issn1002-0306.2020100184 |
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| 作者姓名： | 孙庆运 张宗超 贾振超 韩梦龙 赵峰 |
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| 作者单位： | 山东省农业机械科学研究院,山东济南 250100 |
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| 基金项目： | 玉米果穗干燥与吸湿特性及干燥贮藏一体仓设计研究（BSJJ2021-01）玉米籽粒干燥与仓储技术与装备优化示范 |
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| 摘 要： | 为了解决养心菜干燥生产过程中干燥时间长、能耗高、干燥效率低等问题,本文研究了不同预处理方式(切段、压扁、压扁+切段)、温度(60、70、80℃)对养心菜热风干燥特性的影响,以及全株、茎、叶干燥特性的差异,建立干燥过程数学模型,并分析不同预处理方式、热风温度对养心菜品质的影响.结果表明:提高热风温度以及进行压扁、压扁+切...
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| 关 键 词： | 养心菜 热风干燥 预处理 干燥特性 品质 |
| 收稿时间： | 2020-10-23 |
Effects of Physical Pretreatment Methods and Hot Air Temperatures on the Hot Air Drying Characteristics and Quality of Yangxincai (Sedum aizoon L.) |
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| SUN Qingyun,ZHANG Zongchao,JIA Zhenchao,HAN Menglong,ZHAO Feng. Effects of Physical Pretreatment Methods and Hot Air Temperatures on the Hot Air Drying Characteristics and Quality of Yangxincai (Sedum aizoon L.)[J]. Science and Technology of Food Industry, 2021, 42(13): 210-215. DOI: 10.13386/j.issn1002-0306.2020100184 |
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| Authors: | SUN Qingyun ZHANG Zongchao JIA Zhenchao HAN Menglong ZHAO Feng |
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| Affiliation: | Shandong Academy of Agricultural Machinery Sciences, Jinan 250100, China |
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| Abstract: | In order to solve the problems of long drying time, high energy consumption and low drying efficiency, the drying experiment was conducted which study the effects of physical pretreatment methods (flattening, cutting, flattening + cutting) and hot air temperatures (60, 70, 80 ℃) on the drying characteristics of the whole plant, stem and leaf of Yangxincai. The drying model was established. The effects of different treatments was analyzed on the quality of Yangxincai . Experiment results showed that increasing hot air temperature and conducting flattening, flattening + cutting pretreatment could increase the drying rate and lower the drying time (P<0.05). Under flattening + cutting treatment, the drying time of hot air at 80 ℃ was only 47%, 21% of that at 70, 60 ℃, respectively. Under hot air temperature 80 ℃, the drying time of flattening and flattening + cutting treatment was only 40%, 35% of untreatment. The fitting degree of Weibull model was higher than 0.99 with experiment data. Increasing the hot air temperature and conducting physical pretreatment could reduce the soluble protein loss and make VC concentration decrease. The content of soluble protein was the highest, reaching 6.577 gprot/L under the hot air temperature 80 ℃ and flattening + cutting treatment. The content of VC reached the highest level of 8.503 mg/100 g under the hot air temperature 80 ℃ and cutting treatment. Under the same treatment conditions, the content of soluble protein in dried stems and leaves was higher than the whole plant. The best drying method of Yangxincai was hot air temperature 80 ℃ and flattening + cutting treatment. The results of this study can provide a theoretical basis for the optimization of the drying process of Yangxincai, and improve the economic benefit of drying process. |
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