A Study on the Effect of Nanosilicate-Based Coatings on Storage Life of Pomegranate Cultivar Malas-E-Saveh
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Article Type:
Research/Original Article (دارای رتبه معتبر)
Abstract:
Introduction
The high nutritional and medicinal values and the increasing production anddemands, it is important to control the factors affecting the quality of pomegranate fruitduring storage. Regarding the understanding of how to store pomegranate fruit, it would bepossible to offer this product at local and international markets for a long duration with highquality.
Materials and Methods
In this study, the effect of nano silicate-based polyethylene andpolypropylene on the storage life of pomegranate fruit (cultivar Malas-e-Saveh) has beenstudied in a completely randomized factorial design. The treated fruits were stored in commonstorage for two and four months period. Qualitative andquantitative characteristics of fruitswere measured using the standard methods of analysis.
Results
The results showed that the nano-based polyethylene and polypropylene couldmaintain the highest amount of moisture in the skin (75.72% and 73.14%, respectively) ascompared to the control (26.64%) at the end of storage period. These coating treatments also
maintained the highest amount of aril moisture (76.88%) as compared to the control(71.09%). After storage period, the nano-based polypropylene showed the highestconcentrations of phenolic compounds (883.54 mg GAE/100 ml), flavonoids (487.71 mg
GAE/100 ml) and anthocyanins (11.69 mg C3GE/100 ml) as compared to the control (649.76and 437.56 mg GAE/100 ml, and 7.9 mg C3GE/100 ml, respectively); although the normalcoating treatments showed less influence. Nano-based coating treatments also decreased the
changing rate of ascorbic acid but did not have any significant influence on pH and EC.
Conclusion
The application of nano-based polyethylene and polypropylene treatments is
recommended to improve the keeping quality of pomegranate fruit during storage
Language:
Persian
Published:
Journal of Food Technology & Nutrition, Volume:16 Issue: 1, 2019
Pages:
49 to 60
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