Increase fruit shelf life using biological filters during storage

Subject Areas : Journal of Quality and Durability of Agricultural Products and Food Stuffs

Ashraf Kariminik ¹ (Assistant professor, Department of Microbiology, Kerman Branch, Islamic Azad University, Kerman, Iran)
Babak Kheirkhah ² (Assistant professor, Department of Veterinary Medicine, Baft Branch, Islamic Azad University, Baft, Iran)
Hesam Zendehdel Moghadam ³ (M.S, Department of Microbiology, Kerman Branch, Islamic Azad University, Kerman, Iran)

Received: 2021-11-05 Accepted : 2021-12-19 Published : 2021-11-22

Keywords: fruit, shelf life, Biological filter, Bacteria,

Abstract :

Any change in food that reduces its quality value or reduces its popularity and marketing is called food spoilage. Ethylene gas is one of the gases produced from ripe fruits that causes high ripening and spoilage of the fruit during storage. Solutions have been suggested to absorb this gas during fruit storage. The aim of this study was to apply bio-filters to remove ethylene gas to increase the life of banana fruit after harvest during storage. Various samples prepared from agricultural wastes containing natural environmental microorganisms were evaluated in biological filters designed to remove ethylene gas and prevent spoilage of banana fruit compared to control samples. The gas chromatograph showed that the amount of gas passing through column 4, which contained peat soil substrates, poplar wood chips, enriched organic substrate, leaf soil, straw and creamy organic fertilizer was equal to 0.6528 ml of ethylene per liter of air. It had the highest ability to remove ethylene gas compared to other columns and showed a significant difference with the control sample. In addition, this filter was observationally effective in terms of shelf life of immature bananas compared to control samples, and biological filters containing Pseudomonas putida have the highest amount of ethylene gas absorption. Based on the findings, the use of biological filters is recommended to increase the shelf life of fruits in storage.

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