[1]张波,姬长英,徐伟悦,等.不同预处理下无核厚皮葡萄热泵式分段干燥特性及品质比较[J].江苏农业学报,2018,(05):1144-1152.[doi:doi:10.3969/j.issn.1000-4440.2018.05.025]
 ZHANG Bo,JI Chang-ying,XU Wei-yue,et al.Heat-pump stage-changed drying characteristics and product quality in comparison for seedless thick-skinned grapes under different pretreatment conditions[J].,2018,(05):1144-1152.[doi:doi:10.3969/j.issn.1000-4440.2018.05.025]
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不同预处理下无核厚皮葡萄热泵式分段干燥特性及品质比较()
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江苏农业学报[ISSN:1006-6977/CN:61-1281/TN]

卷:
期数:
2018年05期
页码:
1144-1152
栏目:
加工贮藏·质量安全
出版日期:
2018-10-25

文章信息/Info

Title:
Heat-pump stage-changed drying characteristics and product quality in comparison for seedless thick-skinned grapes under different pretreatment conditions
作者:
张波姬长英徐伟悦蒋思杰宋镇程慧
(南京农业大学工学院,江苏南京210031)
Author(s):
ZHANG BoJI Chang-yingXU Wei-yueJIANG Si-jieSONG ZhenCHENG Hui
(College of Engineering, Nanjing Agricultural University, Nanjing 210031, China)
关键词:
热泵干燥分段干燥葡萄半切品质干燥模型
Keywords:
heat pump dryingstage-changed dryinggrapehalf-cutqualitydrying model
分类号:
S375
DOI:
doi:10.3969/j.issn.1000-4440.2018.05.025
文献标志码:
A
摘要:
为解决无核厚皮葡萄干燥时间长、干制品生产量低、能耗高等问题,利用热泵干燥技术,在不同温湿度阶段变化的干燥工艺下,研究比较了无核厚皮葡萄在不同预处理(切成两半和正常状态)条件下的干燥特性、品质指标及干燥模型。结果表明:在45 ℃、55 ℃、60 ℃、65 ℃阶段升温和对应相对湿度分别为60%、40%、20%、10%工艺下,半切处理的葡萄干燥产品综合品质指标最优,其色泽L*值为39.52,a*值7.22,b*值为9.12,复水比0.33,感官评分8.4分,硬度值0.42 N,维生素C含量4.4 mg/kg。利用8种常用干燥模型对半切处理的厚皮葡萄干燥过程数据进行拟合比较,发现Page模型最适合描述半切厚皮葡萄干燥的过程。
Abstract:
To solve the drying problem of seedless thick-skinned grapes, such as long drying time, low production of dried grapes and high energy consumption, heat pump drying machine was employed in analyzing the drying characteristics, quality index and drying model for seedless thick-skinned grapes by comparing half-cut and normal ones under stage-changed temperature and humidity conditions. Results showed that under the drying process which was heating-up stage of 45 ℃, 55 ℃, 60 ℃, 65 ℃, while the corresponding relative humidity was 60%, 40%, 20% and 10% respectively, comprehensive quality of the dried half-cut seedless thick-skinned grapes was superior to normal dried grapes, and the color value of L* was 39.52, a* value was 7.22, b* value was 9.12, rehydration rate was 0.33, sensory score was 8.4 and hardness value was 0.42 N, vitamin C content was 4.4 mg/kg. Finally, eight kinds of commonly-used drying model were adopted to fit and compare drying process data for half cut thick-skinned grapes, and it was found that Page model was the most suitable to describe the drying process of half-cut thick-skinned grapes.

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备注/Memo

备注/Memo:
收稿日期:2018-06-01 基金项目:江苏省科技计划项目(SBE2015310266);江苏省自然科学基金项目(BK20140729) 作者简介:张波(1988-),男,江苏徐州人,博士研究生,主要从事现代农机设计理论与方法研究。(E-mail)zhangbo-1965.9.13@163.com 通讯作者:姬长英,(E-mail)chyji@njau.edu.cn
更新日期/Last Update: 2018-11-05