'无核白'葡萄热风干燥特性及色泽研究

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中文摘要：为探究干燥温度、装载密度和风速对'无核白'葡萄干燥特性及色泽的影响，通过调查制干过程中葡萄重量变化，葡萄干含水量、色差，以及总酚、叶绿素、总糖、总酸含量等品质指标，计算出干率、绿品率、成干时间，分析不同处理对加工效率和葡萄干品质的影响。结果表明，干燥时间与物料温度和风速呈正相关，与装载量呈负相关，葡萄干总糖含量与果实的干燥工艺无相关性。当干燥温度为40℃时，'无核白'葡萄会发生明显的褐变;而装载量超过15。62 kg·m-3和风速超过2 m·s-1时，褐变现象逐渐加重。综上，温度为35℃、风速1。0 m·s-1、装载量7。81 kg·m-3时，'无核白'葡萄干燥时间为148 h，叶绿素、总酚含量分别为0。55、0。15 mg·g-1，与原材料色差为6。99，绿品率达到64%。葡萄干整体表现颗粒饱满，色泽良好。

外文标题：Study on Hot Air Drying Characteristics and Color of'Thompson Seedless'Grapes

外文摘要：In order to explore the effects of drying temperature,loading density and wind speed on the drying characteristics and color of'Thompson Seedless'grapes,the changes in berry weight,raisin water content,color difference,and total phenol,chlorophyll,total sugar,total acid content and other quality indexes during the drying process were investigated,and the drying rate,greening rate and drying time were calculated to analyze the effects of different treatments on processing efficiency and raisin quality.The results showed that drying time was positively correlated with material temperature and wind speed,and negatively correlated with the loading capacity.There was no correlation between the content of total sugar in raisins and the drying process of grape fruits.'Thompson Seedless'grapes would browning significantly when the material temperature was 40℃;and the browning phenomenon was gradually aggravated when the loading amount was more than 15.62 kg·m-3 and the wind speed was more than 2 m·s-1.In conclusion,when the material temperature was 35℃,the wind speed was 1.0 m·s-1,and the loading quantity was 7.81 kg·m-3,the drying time of'Thompson Seedless'grapes was 148 h,and the content of chlorophyll and total phenol was 0.55 mg·g-1 and 0.15 mg·g-1,and color difference with raw materials was 6.99,and the rate of green products reached 64%.Raisins showed full grain,good color.

外文关键词：

Thompson Seedlesshot air dryingdrying characteristicsgreen product ratecolor

作者：

马云龙、谢辉、张雯、朱学慧、王艳蒙、麦斯乐、张佳喜

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作者单位：

新疆农业大学机电工程学院,乌鲁木齐 830052

新疆农业科学院园艺作物研究所/农业农村部新疆地区果树科学观测试验站/省部共建干旱荒漠区作物抗逆遗传改良与种质创新国家重点实验室/新疆特色果蔬基因组研究与遗传改良重点实验室,乌鲁木齐 830091

新疆农业大学园艺学院,乌鲁木齐 830052

关键词：

无核白热风干燥干燥特性绿品率色泽

基金：

新疆自治区重点研发任务专项国家自然科学基金新疆自治区天山英才青年拔尖人才项目新疆农业科学院科技创新重点培育专项教育部第二批新工科研究与实践项目现代农业产业技术体系项目

项目编号：

2022B02045-3319605772022TSYCCX0068xjkcpy-2020001E-SPNL20202326CARS-29-ZP-08

出版年：

2024

DOI：

10.13414/j.cnki.zwpp.2024.02.009

中外葡萄与葡萄酒

中国酿酒工业协会　山东省酿酒葡萄科学研究所

中外葡萄与葡萄酒

北大核心

影响因子：0.46

ISSN：1004-7360

年,卷(期)：2024.(2)

参考文献量28