包装与食品机械2025，Vol.43Issue(2)：88-95,8.DOI:10.3969/j.issn.1005-1295.2025.02.011
高压脉冲电场处理鲜切马铃薯丁的保鲜效果研究
Research on the preservation effect of high-voltage pulsed electric field treatment on fresh-cut potato dices
摘要
Abstract
To investigate the preservation effect of high-voltage pulsed electric field(HPEF)treatment on fresh-cut potato dices,sensory evaluation was used as the assessment criterion to examine the impacts of electric field intensity,treatment duration,and processing load.Response surface methodology(RSM)was employed to optimize the treatment parameters.Fresh-cut potato dices treated with the optimized HPEF conditions were compared with untreated controls during storage,with changes in sensory score,color,polyphenol oxidase(PPO)activity,weight loss rate,electrical conductivity,pH value,and total viable count(TVC)analyzed.Results indicated that the influencing factors on preservation efficacy followed the order:processing load>electric field intensity>treatment duration.The optimal HPEF parameters were determined as 9.4 kV/cm electric field intensity,21 min treatment duration,and 1 130 g processing load.During 30-day storage at 4℃,HPEF-treated potato dices exhibited a 30％lower peak PPO activity compared to the control group.By day 30,the treated group showed an L* value of 63.0,weight loss rate of 3.50％,electrical conductivity of 425 μS/cm,pH of 5.18,and TVC of 7.45 log(CFU/g).This study provides a novel approach for enzyme inactivation and microbial sterilization in fruits and vegetables.关键词
高压脉冲电场/鲜切马铃薯丁/杀菌/品质Key words
high-voltage pulsed electric field(HPEF)/fresh-cut potato dices/sterilization/quality分类
轻工业引用本文复制引用
李少萍,张小燕,董云雷,刘威,李一然,杜志龙..高压脉冲电场处理鲜切马铃薯丁的保鲜效果研究[J].包装与食品机械,2025,43(2):88-95,8.基金项目
国家马铃薯产业技术体系项目(CARS-09-P28) （CARS-09-P28）
