Journal of Integrative Agriculture ›› 2017, Vol. 16 ›› Issue (03): 735-741.DOI: 10.1016/S2095-3119(16)61390-4

• 论文 • 上一篇    下一篇

  

  • 收稿日期:2016-01-11 出版日期:2017-03-20 发布日期:2017-03-07

Salicylic acid alleviates postharvest chilling injury of sponge gourd (Luffa cylindrica)

HAN Cong1, 2, 3*, ZUO Jin-hua1*, WANG Qing1, DONG Hai-zhou2, GAO Li-pu1   

  1. 1 National Engineering Research Center for Vegetables, Beijing Academy of Agriculture and Forestry Sciences, Beijing 100097, P.R.China

    2 College of Food Science and Engineering, Shandong Agricultural University, Tai’an 271018, P.R.China

    3 College of Food Science and Technology, Nanjing Agricultural University, Nanjing 210095, P.R.China

  • Received:2016-01-11 Online:2017-03-20 Published:2017-03-07
  • Contact: GAO Li-pu, Tel: +86-10-51503051, E-mail: gaolipu@nercv.org
  • About author:HAN Cong, E-mail: hancong6559@126.com; ZUO Jin-hua, E-mail: zuojinhua@126.com
  • Supported by:

    This work was supported by the Ministry of Agriculture of China (CARS-25), the Special Fund for Agro-scientific Research in the Public Interest, China (201203095), the National Natural Science Foundation of China (31401536), the Natural Science Foundation of Beijing, China (6144020), the Young Investigator Fund of Beijing Academy of Agricultural and Forestry Sciences of China (201404).

Abstract: Effect of salicylic acid (SA) on chilling injury (CI) of sponge gourd during storage (9 days, 9°C) plus shelf life (2 days, 20°C) was evaluated in this study.  SA treatment at the concentration of 1.5 mmol L–1 significantly reduced postharvest CI of sponge gourds.  Besides, the application of SA could effectively decrease the electrolyte leakage, reduce the accumulation of malondialdehyde (MDA) and total phenolics, enhance the activities of antioxidant enzymes such as superoxide dismutase (SOD), catalase (CAT) and ascorbate peroxidase (APX), and inhibit the activities of phenylalanine ammonia-lyase (PAL) and polyphenol oxidase (PPO).  The beneficial effects of SA could be attributed to preserved membrane integrity, inhibited membrane peroxidation, enhanced antioxidant system and suppressed activities of browning related enzymes.  In a sense, SA as a postharvest tool may be commercially used in alleviating CI of sponge gourd.

Key words: sponge gourd, salicylic acid, chilling injury, quality, antioxidant enzyme