食品科学 ›› 2019, Vol. 40 ›› Issue (3): 238-244.doi: 10.7506/spkx1002-6630-20171129-355

• 包装贮运 • 上一篇    下一篇

近冰点贮藏对小白杏采后品质和抗氧化能力的影响

崔宽波1,2,范新光1,杨忠强2,李忠新2,曹建康1,姜微波1,*   

  1. (1.中国农业大学食品科学与营养工程学院,北京 100083;2.新疆农业科学院农业机械化研究所,新疆?乌鲁木齐 830091)
  • 出版日期:2019-02-15 发布日期:2019-03-05
  • 基金资助:
    公益性行业(农业)科研专项(201303075);新疆农业科学院青年基金项目(xjnkq-2017008)

Improved Postharvest Quality and Antioxidant Capacity of Apricot (Prunus armeniaca L. cv. Xiaobai) during Storage at Near Freezing Temperature

CUI Kuanbo1,2, FAN Xinguang1, YANG Zhongqiang2, LI Zhongxin2, CAO Jiankang1, JIANG Weibo1,*   

  1. (1. College of Food Science and Nutritional Engineering, China Agricultural University, Beijing 100083, China; 2. Agricultural Mechanization Institute, Xinjiang Academy of Agricultural Sciences, ürümqi 830091, China)
  • Online:2019-02-15 Published:2019-03-05

摘要: 以新疆杏的主栽品种小白杏为试材,研究了近冰点温度、0~1、4~6?℃贮藏对小白杏抗氧化能力和贮藏品质的影响。结果表明:小白杏果实的生物结冰点为-2.3?℃,确定近冰点贮藏温度为-1.5~-2.0?℃,与0~1?℃和4~6?℃贮藏相比,近冰点贮藏可以有效抑制小白杏的呼吸强度和乙烯释放速率,降低果实腐烂率,抑制细胞膜透性的增加和减少丙二醛的积累,保持贮藏后期较高的总酚、总黄酮的含量和较强的抗氧化能力,保持较高的主要有机酸含量,近冰点贮藏84?d后的小白杏仍能保持较好的品质。因此,近冰点贮藏可以有效延长小白杏的采后贮藏期,提高贮藏品质,是一种有效的杏果实贮藏保鲜方法;本实验可为近冰点贮藏在杏贮藏保鲜中的应用提供参考。

关键词: 近冰点贮藏, 小白杏, 贮藏品质, 抗氧化能力

Abstract: The purpose of this work was to investigate the effect of near freezing temperature storage versus storage at 0–1 ℃ and 4–6 ℃ on the antioxidant activity and quality of postharvest Xiaobai apricot fruit. The results showed that the freezing point of the fruit was determined to be ?2.3 ℃. Compared with two other storage temperatures, storage at near freezing temperature (?1.5 to ?2.0 ℃) could effectively inhibit respiration rate and ethylene production rate and therefore reduce decay incidence of apricot fruit by suppressing accumulation of membrane permeability and malondialdehyde content. In addition, apricot fruit maintained higher antioxidant capacity and higher contents of total phenols and total flavonoids as well as higher contents of major organic acids at the later stage of near freezing temperature storage. Better fruit quality was maintained during 84 days of near freezing temperature storage. Therefore, near freezing temperature storage should be recommended for improving the storage quality and antioxidant capacity of postharvest apricots.

Key words: storage at near freezing temperature, Xiaobai apricot, storage quality, antioxidant capacity

中图分类号: