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Journal of Integrative Agriculture  2017, Vol. 16 Issue (09): 2093-2100    DOI: 10.1016/S2095-3119(16)61569-1
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Effect of post-harvest UV-C irradiation and calcium chloride on enzymatic activity and decay of tomato (Lycopersicon esculentum L.) fruit during storage
Saeideh Mansourbahmani1, Behzad Ghareyazie2, Sepideh Kalatejari1, Reza Salehi Mohammadi3, Vahid Zarinnia1
1 Department of Horticultural Sciences, Science and Research Branch, Islamic Azad University, Tehran 1477893855, Iran
2 Agriculture Biotechnology Research Institute of Iran (ABRII)/Agricultural Research, Education and Extension Organization (AREEO), Karaj 3158777871, Iran
3 Department of Horticultural Sciences, University of Tehran, Karaj 3158777871, Iran
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Abstract      Tomato is one of the extensively consumed vegetable crops worldwide.  The regular consumption of tomato decreases the incidence of chronic degenerative diseases such as certain types of cancer and cardiovascular diseases.  The objective of this study was to find an appropriate method that not only reduces tomatoes decay, but also maintains its post-harvest quality.  A factorial experiment based on randomized complete block design with three replications was conducted to evaluate effects of ultraviolet (UV)-C and CaCl2 applications on tomato during storage.  The traits studied included ethylene, polygalacturonase (PG) activity, pectin methyl esterase (PME) activity, firmness, total phenol content, and fungal-induced decay were measured weekly during 35 days of storage.  Both UV-C and CaCl2 treatments had positive effects on tomato quality as compared to control treatment.  The 3 and 4.5 kJ m–2 levels of UV-C and 2% CaCl2 had positive effects on quality characteristics, respectivly.  Fruits treated by UV-C and CaCl2 had higher phenol and firmness, and less PME activity, PG activity, ethylene production, and decay than the control fruits.  In conclusion, increasing in storage duration significantly affected the fruits quality by increasing in ethylene, PME activity, PG activity, decay and decreasing the phenol content and firmness.  But UV-C and CaCl2 led to significant decrease in this adverse impact relative to control treatment.  
Keywords:  CaCl2        ethylene production        firmness        PG        PME        phenol  
Received: 13 August 2016   Accepted:
Corresponding Authors:  Correspondence Sepideh Kalatejari, Tel/Fax: +98-21-44865179, E-mail:   

Cite this article: 

Saeideh Mansourbahmani, Behzad Ghareyazie, Sepideh Kalatejari, Reza Salehi Mohammadi, Vahid Zarinnia. 2017. Effect of post-harvest UV-C irradiation and calcium chloride on enzymatic activity and decay of tomato (Lycopersicon esculentum L.) fruit during storage. Journal of Integrative Agriculture, 16(09): 2093-2100.

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