食品工业科技2024，Vol.45Issue(14)：42-49,8.DOI:10.13386/j.issn1002-0306.2023070193
不同品种高油酸花生热风干燥特性及热力学性质研究
Hot Air Drying Characteristics and Thermodynamic Properties of Different Varieties of High Oleic Peanuts
摘要
Abstract
To explore the moisture variation law of high oleic peanuts during hot air drying,hot air drying characteristics of various high oleic peanuts under different hot air temperatures(35,40,45,50 ℃)and hot air velocities(0.5,0.8,1.1 m/s)were studied in this paper,and their drying processes were analyzed by Weibull distribution function.The results showed that the drying process of high oleic peanuts mainly reduced the rate of drying.Increasing hot air temperature and hot air velocity led to a higher effective moisture diffusion coefficient for high oleic peanuts.In turn,accelerates drying rate and shortens drying time.Among all the peanuts,'Shengyou 3'peanut had the fastest water diffusion rate and lowest activation energy,and the Weibull distribution function provided the most suitable fit for'Shengyou 3'.The scale parameter αdecreased as hot air temperature and hot air velocity increase.Hot air temperature had a highly significant effect on α(P＜0.01),while hot air velocity had a significant effect on α(P＜0.05).The drying conditions had no significant effect on the shape parameter β.The increase in temperature promoted the decrease of enthalpy and entropy values,as well as the increase of Gibbs free energy,indicating that the drying process needed to absorb energy from the drying medium to proceed.The Weibull distribution function can be used to describe the hot air drying process of high oleic peanuts,providing a technical basis for the industrialization of high oleic peanut drying and laying a theoretical foundation.关键词
高油酸花生/热风干燥/Weibull分布函数/热力学性质Key words
high oleic peanut/hot air drying/Weibull distribution function/thermodynamic properties分类
轻工纺织引用本文复制引用
李玉,王瑾,朱文学,陈鹏枭,王延坤,蒋萌蒙,王殿轩,陈亮,张昱泉,胡新阳..不同品种高油酸花生热风干燥特性及热力学性质研究[J].食品工业科技,2024,45(14):42-49,8.基金项目
财政部和农业农村部:国家现代农业产业技术体系资助(CARS-13) （CARS-13）
河南省高等学校重点科研项目计划(21A550003) （21A550003）
河南省重点研发与推广专项(科技攻关)(222102110367). （科技攻关）
