食品科学 ›› 2019, Vol. 40 ›› Issue (7): 198-203.doi: 10.7506/spkx1002-6630-20180226-199

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24-表油菜素内酯对杏果实采后抗冷性与可溶性糖含量的影响

张杼润,张瑞杰,赵 津,朱 璇   

  1. 新疆农业大学食品科学与药学学院,新疆 乌鲁木齐 830052
  • 出版日期:2019-04-15 发布日期:2019-05-05
  • 基金资助:
    国家自然科学基金地区科学基金项目(31860462);南京农业大学-新疆农业大学联合基金项目(KYYJ201605)

Effect of 24-Epibrassinolide on Cold Resistance and Soluble Sugar Content in Apricots during Postharvest Storage

ZHANG Zhurun, ZHANG Ruijie, ZHAO Jin, ZHU Xuan   

  1. College of Food Science and Pharmacy, Xinjiang Agricultural University, ürümqi 830052, China
  • Online:2019-04-15 Published:2019-05-05

摘要: 为了探究24-表油菜素内酯对杏果实采后抗冷性与可溶性糖含量变化的影响,以新疆‘赛买提’杏为实验材料,用质量浓度0.9 mg/L的24-表油菜素内酯减压渗透处理后置于温度0 ℃、相对湿度90%~95%的冷库贮藏,定期测定杏果实的冷害指数、冷害发病率、丙二醛含量、细胞膜透性及可溶性糖含量变化。结果表明:24-表油菜素内酯可明显降低杏果实低温贮藏期间冷害指数、冷害发病率、丙二醛含量、细胞膜透性,显著提高杏果实果糖、山梨醇和葡萄糖含量(P<0.05),降低蔗糖含量(P<0.05)。表明24-表油菜素内酯能够增强杏果实抗冷性,其可能与诱导果糖、山梨醇和葡萄糖含量的变化密切相关。

关键词: 24-表油菜素内酯, 杏, 冷害,

Abstract: In order to investigate the effect of 24-epibrassinolide (EBR) on cold resistance and soluble sugar content in apricots during postharvest storage, freshly harvested fruit of Xinjiang ‘Saimaiti’ apricot were decompress osmosis treated with 0.9 mg/L EBR and stored at 0 ℃ and relative humidity of 90%–95%. Chilling injury index, chilling injury rate, malondialdehyde content, cell membrane permeability and soluble sugar content were determined periodically during storage. The results showed that EBR effectively reduced the chilling injury index, chilling injury rate, malondialdehyde content, cell membrane permeability of apricots, and significantly increased the contents of fructose, sorbitol, glucose (P < 0.05), but reduced sucrose content (P < 0.05). Conclusively, this study indicated that EBR could enhance cold resistance in apricots, and the mechanism may be related to changes in fructose, sorbitol and glucose content.

Key words: 24-epibrassinolide, apricot, chilling injury, sugar

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