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Heat shock treatment maintains the quality attributes of postharvest jujube fruits and delays their senescence process during cold storage

文献类型： 外文期刊

作者： Yang, Lvzhu 1 ; Wang, Xinyu 1 ; He, Shuang 1 ; Luo, Yaohua 1 ; Chen, Sheng 1 ; Shan, Yang 1 ; Wang, Rongrong 4 ; Ding, Sh 1 ;

作者机构： 1.Hunan Acad Agr Sci, Hunan Agr Prod Proc Inst, Hunan Prov Key Lab Fruits & Vegetables Storage Pr, Changsha, Peoples R China

2.Hunan Univ, Longping Branch, Grad Sch, Changsha, Peoples R China

3.Hunan Prov Int Joint Lab Fruits & Vegetables Proc, Changsha, Peoples R China

4.Hunan Agr Univ, Coll Food Sci & Technol, Changsha, Peoples R China

关键词： cold storage; delay senescence; enzyme activity; fruit quality; heat shock treatment; Ziziphus jujuba Mill

期刊名称：JOURNAL OF FOOD BIOCHEMISTRY （ 影响因子：2.72； 五年影响因子：2.543 ）

ISSN： 0145-8884

年卷期： 2021 年 45 卷 10 期

页码：

收录情况： SCI

摘要： The effects of heat shock (HT), 1-methylcyclopropene (1-MCP), or their combination (HT + 1-MCP) on the quality of fresh jujube fruits during cold storage were studied. Among them, HT showed the best preservation effect on jujube fruits, which was more effective than others in inhibiting the increase of red index, decay incidence, and weight loss and delaying the decrease of firmness, soluble solids content (SSC), titratable acidity (TA), and ascorbic acid (AsA) content. Besides, it could delay the degradation rate of the cell wall to maintain the integrity of cell membrane, and keep the high activity of active oxygen scavenging enzymes. During cold storage, malondialdehyde (MDA) content and relative electrolyte leakage (REL) of the HT group were significantly lower than those of the control group, 1-MCP, and HT + 1-MCP group (p < .05), while superoxide dismutase (SOD), catalase (CAT), and peroxidase (POD) activities were significantly higher than those of other groups (p < .05). It was concluded that the postharvest HT treatment could effectively delay the senescence and decay of jujube fruits. Practical applications Jujube fruits have high nutritional value used for food and medicine. However, they are not tolerant to storage after harvest, resulting in high economic losses. Therefore, it is of great significance to find a suitable method to maintain the quality of jujube fruits. Our results revealed the effect of HT, 1-MCP, and their combination on the quality maintenance of jujube fruits, and found that HT could effectively maintain the quality of them, which could be used as an effective method for keeping jujube fruits fresh.

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