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Journal of Food Science and Technology

, Volume 55, Issue 7, pp 2467–2475 | Cite as

Combined postharvest UV-C and 1-methylcyclopropene (1-MCP) treatment, followed by storage continuously in low level of ethylene atmosphere improves the quality of Tahitian limes

  • Penta Pristijono
  • Michael C. Bowyer
  • Christopher J. Scarlett
  • Quan V. Vuong
  • Costas E. Stathopoulos
  • John B. Golding
Original Article
  • 56 Downloads

Abstract

The green Tahitian limes (Citrus latifolia) were exposed to 7.2 kJ m−2 UV-C and 0.5 μL L−1 1-methylcyclopropene (1-MCP) treatments both separately and in combination. After treatment, fruit were stored in ethylene free (i.e. air containing < 0.005 μL L−1) or 0.1 μL L−1 ethylene at 20 °C and 100% RH. The results showed that UV-C treatment delayed skin degreening and reduced endogenous ethylene production compared to untreated control fruit, however these effects reduced over the storage time. As expected, 1-MCP inhibited ethylene production, reduced calyx abscission and retained peel greenness during the storage. Both of the combination treatments, 1-MCP + UV-C and UV-C + 1-MCP reduced endogenous ethylene production and delayed skin yellowing. In all treatments, UV-C and 1-MCP resulted in lower fruit respiration rates than untreated control fruit, however this effect diminished during 7 and 14 days storage for fruits stored in air and 0.1 μL L−1 ethylene atmosphere, respectively. There was no difference in weight loss, SSC, TA and SSC/TA ratio between the treatments and storage conditions. The results suggest that a pre-storage UV-C treatment, followed by storage at low level of ethylene improves the quality of limes, with the additional improvement when combined with 1-MCP treatment prior or after UV-C irradiation.

Keywords

Citrus latifolia Quality Ethylene Respiration Colour Calyx abscission 

Notes

Acknowledgements

This work was supported by the University of Newcastle, Australian Research Council Training Centre for Food and Beverage Supply Chain Optimisation (IC140100032) and NSW Department of Primary Industries. We acknowledge to Agrofresh Solution Inc. for providing 1-MCP for this study.

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Copyright information

© Association of Food Scientists & Technologists (India) 2018

Authors and Affiliations

  • Penta Pristijono
    • 1
  • Michael C. Bowyer
    • 1
  • Christopher J. Scarlett
    • 1
  • Quan V. Vuong
    • 1
  • Costas E. Stathopoulos
    • 2
  • John B. Golding
    • 1
    • 3
  1. 1.School of Environmental and Life SciencesUniversity of NewcastleOurimbahAustralia
  2. 2.School of Science, Engineering and TechnologyUniversity of AbertayDundeeUK
  3. 3.NSW Department of Primary IndustriesGosfordAustralia

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