食品与发酵工业2024，Vol.50Issue(14)：158-164,7.DOI:10.13995/j.cnki.11-1802/ts.036521
花生热泵干燥动力学及品质变化研究
Study on drying kinetics and quality changes of peanut by heat pump
摘要
Abstract
This experiment mainly used in-shell fresh peanuts as the main raw material and adopted heat pump drying technology to dry peanuts.The effects of different material temperatures,loading masses,and air velocities on drying characteristics and peanut kernel nutritional quality were compared.Results showed that during drying,the drying moisture ratio decreased exponentially with increasing dr-ying time,and the drying rate decreased with time.With the increase in material temperature,the drying time decreases,and the unit en-ergy consumption first decreases and then increases.With the increase in loading mass,the drying time increases,and the unit energy consumption first decreases and then increases.Air velocity had no significant effect on drying time and unit energy consumption.The mate-rial loading had no significant effect on the protein,fat,oleic acid,linoleic acid,and amino acid contents in peanut kernels.The material temperature and air velocity had a significant effect on the nutritional quality of peanut kernels.The acid value and peroxide value of the dried peanut kernels met the national standard.When the hot air temperature was 45 ℃,the germination potential and rate of peanut kernels were the highest,and the material loading and air velocity had no significant effect on the germination rate.In conclusion,setting the drying con-ditions to a hot air temperature of 45 ℃,a single loading amount of 1 000 g,and an air velocity of 1.2 m/s resulted in better drying charac-teristics and quality of peanut kernels,with a shorter drying time(10.0 h)and the lowest unit energy consumption(11.01 kW·h/kg).关键词
花生/热泵干燥/干燥特性/营养品质/发芽率Key words
peanut/heat pump drying/drying characteristics/nutritional quality/germination rate引用本文复制引用
谢永康,赵贺阳,李萍,杨慧,李星仪,韩俊豪,路风银..花生热泵干燥动力学及品质变化研究[J].食品与发酵工业,2024,50(14):158-164,7.基金项目
河南省重点研发与推广专项(科技攻关)(212102110232) （科技攻关）
河南省农业科学院优秀青年科技基金项目(2022YQ23) （2022YQ23）
河南省农业科学院自主创新项目(2023ZC078) （2023ZC078）
