Moisture distribution change and quality characteristics of ultrasound enhanced heat pump drying on carrot

IF 17.7 1区化学 Q1 CHEMISTRY, MULTIDISCIPLINARY Accounts of Chemical Research Pub Date : 2024-06-10 DOI:10.1515/ijfe-2024-0050

Xueqing Wang, Meng Han, Chengnuo Peng, Anguo Xie, Xiaoyan Fan, Yunhong Liu

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Abstract

Abstract The study aims at investigating the impact of ultrasound enhancement on the water change and quality characteristics of dried carrots by heat pump drying (HPD). The results showed that ultrasound had obvious strengthening effect on the drying and dehydration process of HPD, but there was an attenuation effect of ultrasound in the propagation process of materials, and the magnetic resonance imaging results could visually demonstrate the change and migration of moisture inside carrot slices. Higher drying temperature and ultrasonic power could cause more micropores and higher content of polyphenols, flavonoids and niacin of carrot slices. Conversely, the elevated drying temperature reduced rehydration ratio. β-carotene content showed a trend of increasing first and then decreasing due to excessive temperature and ultrasonic power. Based on AHP-CRTITC method, the highest comprehensive score was attained at drying temperature of 60 °C and ultrasonic power of 80 W. Therefore, the reinforcement effect of ultrasound on HPD process could significantly enhance dehydration rate and improve product quality.

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超声波强化热泵干燥胡萝卜的水分分布变化和质量特性

摘要该研究旨在探讨超声波增强对热泵干燥（HPD）胡萝卜干水分变化和品质特性的影响。结果表明，超声波对热泵干燥（HPD）的干燥和脱水过程有明显的增强作用，但超声波在物料传播过程中存在衰减效应，磁共振成像结果可直观地显示胡萝卜切片内部水分的变化和迁移。较高的干燥温度和超声波功率可使胡萝卜片中的微孔增多，多酚、类黄酮和烟酸的含量增加。相反，干燥温度升高会降低再水化率。由于温度和超声波功率过高，β-胡萝卜素含量呈现先增加后减少的趋势。根据 AHP-CRTITC 方法，干燥温度为 60 ℃、超声功率为 80 W 时综合得分最高。因此，超声波对 HPD 工艺的强化作用可显著提高脱水率，改善产品质量。

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来源期刊

Accounts of Chemical Research 化学-化学综合

CiteScore

31.40

自引率

1.10%

发文量

312

审稿时长

2 months

期刊介绍： Accounts of Chemical Research presents short, concise and critical articles offering easy-to-read overviews of basic research and applications in all areas of chemistry and biochemistry. These short reviews focus on research from the author’s own laboratory and are designed to teach the reader about a research project. In addition, Accounts of Chemical Research publishes commentaries that give an informed opinion on a current research problem. Special Issues online are devoted to a single topic of unusual activity and significance. Accounts of Chemical Research replaces the traditional article abstract with an article "Conspectus." These entries synopsize the research affording the reader a closer look at the content and significance of an article. Through this provision of a more detailed description of the article contents, the Conspectus enhances the article's discoverability by search engines and the exposure for the research.