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Ahmad Reza Abbasifar

Ahmad Reza Abbasifar

Academic rank: Associate Professor
ORCID: https://orcid.org/0000-0002-8559-6215
Education: PhD.
ScopusId: 35782919700
HIndex:
Faculty: Agriculture and Environment
Address: Arak University
Phone: 086-32623320

Research

Title
Effect of chitosan coating combined with thymol essential oil on physicochemical and qualitative properties of ‎fresh fig (Ficus carica L.) fruit during cold storage
Type
JournalPaper
Keywords
Fruit coating · Fig · Shelf life · Quality maintenance
Year
2019
Journal Journal of Food Measurement and Characterization
DOI
Researchers mansoreh saki ، Babak ValizadehKaji ، Ahmad Reza Abbasifar ، Iman Shahrjerdi

Abstract

Fresh fig is one of the most perishable climacteric fruits. An alternative to maintain quality and extend the shelf life ‎of this fruit could be the use of edible coatings. Therefore, in the present study, the effect of three different coatings; ‎‎0.5 % chitosan, 200 mg L- thymol and their combined use on postharvest quality of fig fruits cv. ‘Siah’ were ‎investigated. Dripping fruits in distilled water was used as a control. Changes in weight loss, respiration rate, fruit ‎firmness, total soluble solids (TSS), titratable acidity (TA), anthocyanin, sensory characteristics, fungal decay ‎incidence and color values (L*, C* and ΔE*) of fruits were evaluated during 0, 5, 10, 15 and 20 days storage at 6 ‎‎°C. The results showed that the combination of chitosan and thymol presented more effective preservative effect ‎than sole chitosan or thymol coating. The coated fruits with 0.5 % chitosan + 200 mg L- thymol showed significantly ‎lower weight loss, respiration rate, TSS, TSS/TA, and fungal decay incidence than other treatments. Furthermore, the ‎coated fruits with 0.5 % chitosan + 200 mg L- thymol exhibited significantly higher firmness, TA, anthocyanin, and ‎sensory characteristics than other treatments. In addition, fruits coated with 0.5 % chitosan + 200 mg L- thymol ‎showed the highest L* and C* values after 20 days storage at 6 °C. Therefore, the coating composed of chitosan ‎and thymol can provide an efficient alternative for quality maintenance and shelf life extension of fresh fig fruits.‎