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Chinese Agricultural Science Bulletin ›› 2023, Vol. 39 ›› Issue (28): 131-136.doi: 10.11924/j.issn.1000-6850.casb2022-0792

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Preservation Effects of Spermidine and Spermine on Postharvest Cherry ‘Crystal’

ZHANG Qing1,2(), SONG Ruoxuan1,2, HOU Jiajing1, HAO Xulei1, DONG Guoxin1, QIAO Xuqiang1,2()   

  1. 1 School of Agriculture, Ludong University, Yantai, Shandong 264025
    2 The Engineering Research Institute of Agriculture and Forestry, Ludong University, Yantai, Shandong 264025
  • Received:2022-09-13 Revised:2023-02-27 Online:2023-10-05 Published:2023-09-25

Abstract:

In order to study the application of polyamines for cherry preservation during storage, the effects of spermidine (Spd) and spermine (Spm) on the quality characteristics and antioxidant properties of peduncle, peel and sarcocarp were investigated by using cherry ‘Crystal’ as the test material. The results showed that: (1) exogenous Spd could effectively delay the decrease of chlorophyll content and maintain its freshness index of peduncle. (2) Both exogenous Spd and Spm reduced the rate of superoxide anion (O2·-) and the content of hydrogen peroxide (H2O2), thus alleviating the peroxidation degree of plasma membrane. (3) Exogenous Spd and Spm substantially enhanced superoxide dismutase (SOD) activity, ascorbic acid (ASA) and glutathione (GSH) contents, and improved the antioxidant capacity of sarcocarp. (4) The storage time of cherry preservation was extended, and the weight loss rate and the degree of decay were also effectively retarded after Spd and Spm spraying. In conclusion, exogenous polyamines (Spd and Spm) can effectively improve the antioxidant and storage properties of cherries. The study can provide important theoretical support for the application of polyamines in the maintenance of postharvest quality and fresh-keeping.

Key words: spermidine, spermine, cherry, postharvest physiology, preservation