摘要
为研究不同厚度聚乙烯(PE)膜包装对甜玉米冷库贮藏期间品质的影响,采用0.02 mm和0.03 mm PE膜包装甜玉米,并于0℃冷库中贮藏,考察其感官评分、失重率、皱缩率、色泽的变化,并对其呼吸速率、乙烯生成率及可溶性固形物、可溶性糖、淀粉含量进行测定,使用电子鼻比较其风味品质的差异。结果表明:0.02 mm PE膜包装可显著降低甜玉米贮藏过程中的呼吸速率,抑制乙烯生成,延缓苞叶失绿黄化,保持甜玉米籽粒色泽,提高甜玉米可溶性固形物和可溶性糖含量,降低其淀粉含量,从而维持甜玉米的贮藏品质和风味品质。试验表明,0.02 mm PE膜包装在维持甜玉米采后贮藏品质方面有较好的效果,该研究为甜玉米采后包装材料的选择提供一定参考和数据支撑。
This study aimed to investigate the effects of polyethylene films(PE)packaging with different thicknesses on the qualities of sweet corns during cold storage.The sweet corns were packaged by 0.02 mm and 0.03 mm PE films and stored at 0℃,and the changes of sensory scores,weight loss rates,shrinkage rates and color were determined,and the respiration rates,ethylene production rates,soluble solids,soluble sugars and starch contents were measured.The difference of flavor quality was compared with electronic nose.The results showed that 0.02 mm PE film packaging could significantly reduce the respiratory rates of sweet corns during storage,and inhibit ethylene production,delay bracts yellowing,keep sweet corn grains color and lustre,improve the soluble solids and soluble sugar contents,reduce the starch contents,so as to maintain storage qualities and flavor qualities of sweet corns.The test showed that 0.02 mm thick PE film packaging presented superior effects in maintaining the postharvest storage qualities of sweet corns,which could provide certain references and data supports for the selection of sweet corns packaging materials after harvest.
作者
时文林
赵雅琦
姜清秀
左进华
封碧红
王清
SHI Wen-lin;ZHAO Ya-qi;JIANG Qing-xiu;ZUO Jin-hua;FENG Bi-hong;WANG Qing(Institute of Agricultural Products Processing and Food Nutrition,Beijing Academy of Agriculture and Forestry,Ministry of Agriculture and Rural Affairs,Key Laboratory of Vegetable Post-production Processing,Beijing Key Laboratory of Preservation and Processing of Fruit and Vegetable Agricultural Products,Beijing 100097,China;College of Agriculture,Guangxi University,Nanning 530000,China)
出处
《保鲜与加工》
CAS
2023年第1期1-8,共8页
Storage and Process
基金
国家现代农业产业技术体系资助(CAR S-23)
现代农业产业技术体系北京市创新团队(BAIC02-2022)
北京市农林科学院协同创新中心建设(KJCX201915)
北京市农林科学院创新能力建设专项(KJCX20220418)。
关键词
甜玉米
厚度
聚乙烯膜
贮藏品质
sweet corns
thickness
polyethylene films
storage quality
