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园艺学报 ›› 2006, Vol. 33 ›› Issue (2): 378-380.

• 研究简报 • 上一篇    下一篇

热水及加钙处理对冬枣果实货架期间衰老相关生理的影响

李鹏霞1, 2;王贵禧2*;梁丽松2;樊金拴1   

  1. (1 西北农林科技大学, 杨凌712100; 2 中国林业科学研究院林业研究所, 国家林业局林木培育实验室, 北京100091)
  • 收稿日期:2005-06-22 修回日期:2005-08-30 出版日期:2006-04-25 发布日期:2006-04-25

Effects of Combination of Hot-water and Ca2+ Treatment on Senescence-related Physiology of ‘Dongzao’Jujube Fruit during Shelf-life

Li Pengxia1, 2; Wang Guixi2*;Liang Lisong2;Fan Jinshuan1   

  1. (1Northwestern A & F University, Yangling 712100, China; 2 Institute of Forestry, The Chinese Academy of Forestry, Key Laboratory of Forest Silviculture of State Forestry Administration, Beijing 100091, China)
  • Received:2005-06-22 Revised:2005-08-30 Online:2006-04-25 Published:2006-04-25

摘要: 用50~55℃热水处理冬枣6~8 min能显著抑制货架期间其相对电导率、丙二醛含量、褐变指
数的上升以及硬度下降, 抑制多酚氧化酶、外切和内切多聚半乳糖醛酸酶活性上升, 延长货架期。热水中加入1% CaCl2 可进一步提高处理效果, 但对多酚氧化酶和褐变指数影响不大。

关键词: 枣, 热处理, 钙, 货架期, 衰老

Abstract: The effects of hot-water alone or in combination of Ca2+ on senescence-related metabolism of ‘Dongzao’ jujube ( Zizyphus jujuba Mill. ) fruit were investigated during shelf-life. Jujube fruit were immersed in hot-water at 50-55℃ for 6 - 8 min. Hot-water treatment could remarkably retard the increases inrelative electric conductivity, malondialdehyde (MDA) content, browning index, activities of polyphenol oxidase, exo2PG and endo-PG, and prolong the shelf-life with higher fruit firmness. The addition of 1% CaCl2 into the hot-water enhanced the beneficial effects, but did not much affected polyphenol oxidase activity and browning index.

Key words: Jujube, Heat treatment, Ca2+, Shelf-life, Senescence