食品与机械2026，Vol.42Issue(3)：183-188,6.DOI:10.13652/j.spjx.1003.5788.2025.81069
热风烘干关键因素对浒苔物理特性的影响
Effects of key factors in hot air drying on the physical properties of Ulva prolifera
摘要
Abstract
[Objective]To explore the quality change patterns of Ulva prolifera during the hot air drying process.[Methods]The effects of three key drying factors(hot air temperature,air velocity,and material thickness)on the physical properties of U.prolifera(including moisture content,porosity,specific heat capacity,and thermal conductivity)are systematically investigated.Then,the influence patterns of each factor are clarified by single-factor experiments combined with multi-factor correlation analysis.Finally,a partial least squares regression prediction model is constructed.[Results]An increase in temperature significantly reduces the moisture content,increases porosity and specific heat capacity,while causing a downward trend in thermal conductivity.An increase in air velocity facilitates water removal and pore structure formation,significantly reducing thermal conductivity.The effect of material thickness on thermal conductivity is the most prominent,as increased thickness inhibits pore structure development.Pearson correlation analysis indicates significant correlations between the physical properties of U.prolifera.A prediction model on physical properties is constructed based on partial least squares,with R2 values of 96.8%,97.6%,94.2%,and 95.2%for moisture content,porosity,specific heat capacity,and thermal conductivity,respectively.The model fits well and exhibits high accuracy,confirmed to be reliable by the verification test.[Conclusion]The influence patterns of temperature,air velocity,and material thickness on the physical properties of U.prolifera provide a reference for industrial drying process optimization and quality control.关键词
浒苔/热风烘干装置/物理特性/含水率/相关性分析/偏最小二乘回归分析Key words
Ulva prolifera/hot air drying device/physical property/moisture content/correlation analysis/partial least squares regression analysis引用本文复制引用
王震,杨进..热风烘干关键因素对浒苔物理特性的影响[J].食品与机械,2026,42(3):183-188,6.基金项目
江苏省现代农机装备与技术推广项目(编号:NJ2025-13) （编号:NJ2025-13）
