Effect of Processing Under Ultraviolet Light on the Shelf Life of Fresh-Cut Cantaloupe Melon

Authors

  • Olusola Lamikanra,

    1. Authors Lamikanra and Gett-Garber are with U.S. Dept. of Agriculture, Agricultural Research Service, Southern Regional Research Center, 1100 Robert E. Lee Blvd., New Orleans, LA 70124. Author Kueneman is with C&S Equipment Co. LLC. Caldwell, Idaho. Author Ukuku is with U.S. Dept. of Agriculture, Agricultural Research Service, Eastern Regional Research Center, Wyndmoor, Pa. Direct inquiries to author Lamikanra (sola@srrc.ars.usda.gov).
    Search for more papers by this author
  • Dave Kueneman,

    1. Authors Lamikanra and Gett-Garber are with U.S. Dept. of Agriculture, Agricultural Research Service, Southern Regional Research Center, 1100 Robert E. Lee Blvd., New Orleans, LA 70124. Author Kueneman is with C&S Equipment Co. LLC. Caldwell, Idaho. Author Ukuku is with U.S. Dept. of Agriculture, Agricultural Research Service, Eastern Regional Research Center, Wyndmoor, Pa. Direct inquiries to author Lamikanra (sola@srrc.ars.usda.gov).
    Search for more papers by this author
  • Dike Ukuku,

    1. Authors Lamikanra and Gett-Garber are with U.S. Dept. of Agriculture, Agricultural Research Service, Southern Regional Research Center, 1100 Robert E. Lee Blvd., New Orleans, LA 70124. Author Kueneman is with C&S Equipment Co. LLC. Caldwell, Idaho. Author Ukuku is with U.S. Dept. of Agriculture, Agricultural Research Service, Eastern Regional Research Center, Wyndmoor, Pa. Direct inquiries to author Lamikanra (sola@srrc.ars.usda.gov).
    Search for more papers by this author
  • Karen L. Bett-Garber

    1. Authors Lamikanra and Gett-Garber are with U.S. Dept. of Agriculture, Agricultural Research Service, Southern Regional Research Center, 1100 Robert E. Lee Blvd., New Orleans, LA 70124. Author Kueneman is with C&S Equipment Co. LLC. Caldwell, Idaho. Author Ukuku is with U.S. Dept. of Agriculture, Agricultural Research Service, Eastern Regional Research Center, Wyndmoor, Pa. Direct inquiries to author Lamikanra (sola@srrc.ars.usda.gov).
    Search for more papers by this author

Abstract

ABSTRACT: The effect of processing cantaloupe melon under ultraviolet-C (UV-C) radiation on storage properties of the cut fruit at 10 °C was compared with post-cut UV-C fruit treatment and the untreated control. Cutting fruit under UV-C light induced a hypersensitive defense response that resulted in increased accumulation of ascorbate peroxidase relative to the other 2 treatments. Fruit processed under UV-C radiation had the lowest esterase activity throughout the storage period. Lipase activity was higher in post-cut treated fruit than fruit processed under UV-C light and the control fruit. Lipase activity, however, decreased rapidly in fruit processed under UV-C and was undetectable after 7 d of storage. Human sensory aroma evaluation indicates reduced rancidity, and instrumental texture measurements suggested improved firmness retention in fruit cut under UV-C radiation. The treatment also reduced respiration during cut fruit storage. UV-C was effective in reducing yeast, mold, and Pseudomonas spp populations in both treatments. Fresh-cut pieces from whole melon cut under UV light had lower populations of aerobic mesophilic and lactic acid bacteria relative to the control and post-cut treated pieces. Results indicate that while post-cut application of UV improved shelf life of cut cantaloupe melon, cutting fruit under UV-C radiation further improves product quality.

Ancillary