Effects of 1-methylcyclopropene (1-MCP) treatment on antioxidant enzymes and fruit quality parameters of cold-stored baby squash

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Kurubaş M. S., Sabotic J., ERKAN M.

TURKISH JOURNAL OF AGRICULTURE AND FORESTRY, vol.45, no.1, pp.33-45, 2021 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 45 Issue: 1
  • Publication Date: 2021
  • Doi Number: 10.3906/tar-2004-112
  • Journal Name: TURKISH JOURNAL OF AGRICULTURE AND FORESTRY
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, BIOSIS, CAB Abstracts, Compendex, Environment Index, Geobase, INSPEC, Veterinary Science Database, TR DİZİN (ULAKBİM)
  • Page Numbers: pp.33-45
  • Keywords: Antioxidant, baby squash, 1-methylcyclopropene, quality, storage, CHILLING INJURY SYMPTOMS, SOLANUM-LYCOPERSICON L., POSTHARVEST QUALITY, ETHYLENE BIOSYNTHESIS, PAPAYA FRUIT, SHELF-LIFE, STORAGE, AVOCADO, SENESCENCE, RESPONSES
  • Open Archive Collection: AVESIS Open Access Collection
  • Akdeniz University Affiliated: Yes

Abstract

In this study, the effects of 1-methylcyclopropene (1-MCP) treatment on the antioxidant enzymes and fruit quality parameters of baby squash (Cucurbita pepo L., cv. Soleil F-1 and Iskender F-1) during cold storage was investigated. After being freshly harvested, the Iskender F-1 (green-skinned) and Soleil F-1 (yellow-skinned) baby squash were treated with 250 and 500 ppb concentrations of 1-MCP and stored at 10 degrees C for 14 days. The 250 ppb 1-MCP treatment suppressed the loss of total soluble solid, ascorbic acid, total phenolic, and total flavonoid contents during storage in the Soleil F-1 squash. Similarly, the 250 ppb 1-MCP treatment delayed the loss of ascorbic acids and titratable acidity of Iskender F-1 squash. The highest ascorbic acid content and antioxidant activity were determined with the 250 ppb 1-MCP treatment, while the highest total chlorophyll content was detected in the 500 ppb 1-MCP-treated Iskender F-1 squash. The initiation of fruit softening and chlorophyll degradation was delayed in the 1-MCP-treated squash. Ethylene emission was also inhibited by the 1-MCP treatments in both types of squash. 1-MCP treatment effectively reduced the weight loss and decay incidence in both squash cultivars. The results indicated that the 250 ppb 1-MCP treatment retained antioxidant enzymes for a longer period and it was found to be more effective for maintaining the fruit quality parameters of the cold-stored baby Soleil F-1 and Iskender F-1 squash.