食品科学 ›› 2006, Vol. 27 ›› Issue (5): 246-249.

• 包装贮运 • 上一篇    下一篇

热处理、多胺处理对黄瓜膜脂肪酸变化的影响

 乔勇进, 冯双庆,  李丽萍,  张绍铃,  刘招龙   

  1. 南京农业大学园艺学院; 上海市农业科学院农产品保鲜加工研究中心;中国农业大学食品科学与营养工程学院; 北京农学院食品科学系;
  • 出版日期:2006-05-15 发布日期:2011-09-16

Effects on Changing of Membrane Fatty Acid in Cucumber by Heat and Polyamine Treatment

QIAO  Yong-Jin, FENG  Shuang-Qing,   Li-Li-Ping,   Zhang-Shao-Ling,   Liu-Zhao-Long   

  1. 1.College of Horticulture, Nanjing Agricultural University, Nanjing 210094, China; 2.The Research Center of Storage and Processing for Agricultural Products, Shanghai Academy of Agricultural Sciences, Shanghai 201106, China;3.College of Food Science and Nutritional Engineering, China Agricultural University, Beijing 100083, China; 4.Department of Food Science, Beijing Agricultural College, Beijing 100092, China
  • Online:2006-05-15 Published:2011-09-16

摘要: 热处理和多胺处理可以提高果蔬的抗冷性,植物耐冷性与膜流动性及膜脂肪酸构成关系密切,本文研究表明热处理和多胺处理可以明显降低不饱和脂肪酸下降速率,保持膜脂高的不饱和脂肪酸组成,延缓脂肪酸不饱和度下降,抑制脂肪酸的膜脂过氧化;保持高价位的不饱和脂肪酸,从而提高了膜的流动性,这有利于提高膜的抗冷性和对低温的适应能力。

关键词: 热处理, 多胺处理, 膜脂肪酸, 黄瓜, 贮藏

Abstract: The chilling-resistance of fruits and vegetables in storage was enhanced by heat and polyamine treatments. There was high correlationship between chilling-resistance and liquidity of cucumber membrane and fatty acid composition. The results showed that heat and polyamine treatment had more effects such as significantly retarded dropping rate of UFA; maintained more UFA proportions; staved declining of UFA/FA value; restrained oxidation of membrane fatty acids; kept high levels of UFA components. The liquidity of membrane was improved in favor of heightening resistance-chilling and adaptation to low temperature.

Key words: heat treatment, polyamine treatment, fatty acid, cucumber, storage