Preharvest chitosan oligochitosan and salicylic acid treatments enhance phenol metabolism and maintain the postharvest quality of apricots (Prunus armeniaca L.)
文献类型： 外文期刊
作者： Cui, Kuanbo 1 ; Shu, Chang 1 ; Zhao, Handong 3 ; Fan, Xinguang 4 ; Cao, Jiankang 1 ; Jiang, Weibo 1 ;
作者机构： 1.China Agr Univ, Coll Food Sci & Nutr Engn, 17 Qinghua Donglu, Beijing 100083, Peoples R China
2.Xinjiang Acad Agr Sci, Agr Mechanizat Inst, 291 Nanchangnanlu, Urumqi 830091, Peoples R China
3.Qilu Univ Technol, Coll Food Sci & Engn, Shandong Acad Sci, Jinan 250353, Peoples R China
4.Ludong Univ, Coll Food Engn, Yantai 264025, Peoples R China
关键词： Postharvest quality; Antioxidant capacity; Apricot; Preharvest spray; Phenol metabolism
期刊名称：SCIENTIA HORTICULTURAE （ 影响因子：3.463； 五年影响因子：3.672 ）
ISSN： 0304-4238
年卷期： 2020 年 267 卷
页码：
收录情况： SCI
摘要： To improve the apricots quality of preharvest spray with 0.05 chitosan oligochitosan (COS) or/and 1 mmol L-1 salicylic acid (SA) were applied on the tree. The postharvest quality parameters and phenol metabolism of 'xiaobar apricot fruit were evaluated during the storage at 2 degrees C for 70 d. The result showed that the treatment with COS or SA could decayed the rise decay rate, fruit softening, color change, and the decrease in total soluble solid and titratable acidity content during the apricot storage; however the combined treatment of with COS and SA could more effectively delay postharvest senescence of the apricot than the individual treatment of COS or SA. Furthermore, the COS + SA treatment alleviated chilling injury and delayed the increases of ion leakage, internal browning index and malonaldehyde content, effectively. In addition, the COS + SA treatment remarkably activated the activity of defense enzymes, as well as maintained higher bioactive level of phenol compounds, and enhanced antioxidant capacity in apricots. In conclusion, these results indicated the preharvest treatment of combined COS + SA can be applied for reducing chilling injury and improving the quality of apricots during low temperature storage.
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