Effects of simultaneous UV-C radiation and ultrasonic energy postharvest treatment on bioactive compounds and antioxidant activity of tomatoes during storage

The effects of a novel technology utilizing a simultaneous combination of Ultraviolet-C radiation and ultrasound energy postharvest treatment on tomato bioactive compounds during 28 days’ storage period was investigated by varying Ultraviolet-C radiation intensities of 639.37 or 897.16 µW/cm2 at a c...

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Main Authors: Esua, Okon Johnson, Chin, Nyuk Ling, Yusof, Yus Aniza, Sukor, Rashidah
Format: Article
Language:English
Published: Elsevier 2019
Online Access:http://psasir.upm.edu.my/id/eprint/79623/1/Effects%20of%20simultaneous%20UV-C%20radiation%20and%20ultrasonic%20energy%20postharvest%20treatment%20on%20bioactive%20compounds%20and%20antioxidant%20activity%20of%20tomatoes%20during%20storage.pdf
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author Esua, Okon Johnson
Chin, Nyuk Ling
Yusof, Yus Aniza
Sukor, Rashidah
author_facet Esua, Okon Johnson
Chin, Nyuk Ling
Yusof, Yus Aniza
Sukor, Rashidah
author_sort Esua, Okon Johnson
collection UPM
description The effects of a novel technology utilizing a simultaneous combination of Ultraviolet-C radiation and ultrasound energy postharvest treatment on tomato bioactive compounds during 28 days’ storage period was investigated by varying Ultraviolet-C radiation intensities of 639.37 or 897.16 µW/cm2 at a constant ultrasound intensity of 13.87 W/L from a 40 kHz–1 kW transducer. A minimal treatment time of 240 s at Ultraviolet-C dosage of 2.15 kJ/m2 was observed to provoke a considerable increase in bioactive compounds content, proportionated to treatment time. Although treatment led to temperature increase in the system reaching 39.33 °C due to heat generation by ultrasonic cavitation, the extractability and biosynthesis of phytochemicals were enhanced resulting in 90%, 30%, 60%, 20%, and 36% increases in lycopene, total phenols, vitamin C, hydrophilic and lipophilic antioxidant activities respectively. Results present the potential use of the combined non-thermal technologies as post-harvest treatment to improve bioactive compounds and antioxidant activity during storage.
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spelling upm.eprints-796232021-08-15T00:25:19Z http://psasir.upm.edu.my/id/eprint/79623/ Effects of simultaneous UV-C radiation and ultrasonic energy postharvest treatment on bioactive compounds and antioxidant activity of tomatoes during storage Esua, Okon Johnson Chin, Nyuk Ling Yusof, Yus Aniza Sukor, Rashidah The effects of a novel technology utilizing a simultaneous combination of Ultraviolet-C radiation and ultrasound energy postharvest treatment on tomato bioactive compounds during 28 days’ storage period was investigated by varying Ultraviolet-C radiation intensities of 639.37 or 897.16 µW/cm2 at a constant ultrasound intensity of 13.87 W/L from a 40 kHz–1 kW transducer. A minimal treatment time of 240 s at Ultraviolet-C dosage of 2.15 kJ/m2 was observed to provoke a considerable increase in bioactive compounds content, proportionated to treatment time. Although treatment led to temperature increase in the system reaching 39.33 °C due to heat generation by ultrasonic cavitation, the extractability and biosynthesis of phytochemicals were enhanced resulting in 90%, 30%, 60%, 20%, and 36% increases in lycopene, total phenols, vitamin C, hydrophilic and lipophilic antioxidant activities respectively. Results present the potential use of the combined non-thermal technologies as post-harvest treatment to improve bioactive compounds and antioxidant activity during storage. Elsevier 2019-01 Article PeerReviewed text en http://psasir.upm.edu.my/id/eprint/79623/1/Effects%20of%20simultaneous%20UV-C%20radiation%20and%20ultrasonic%20energy%20postharvest%20treatment%20on%20bioactive%20compounds%20and%20antioxidant%20activity%20of%20tomatoes%20during%20storage.pdf Esua, Okon Johnson and Chin, Nyuk Ling and Yusof, Yus Aniza and Sukor, Rashidah (2019) Effects of simultaneous UV-C radiation and ultrasonic energy postharvest treatment on bioactive compounds and antioxidant activity of tomatoes during storage. Food Chemistry, 270. pp. 113-122. ISSN 0308-8146 https://www.sciencedirect.com/science/article/pii/S0308814618311701 10.1016/j.foodchem.2018.07.031
spellingShingle Esua, Okon Johnson
Chin, Nyuk Ling
Yusof, Yus Aniza
Sukor, Rashidah
Effects of simultaneous UV-C radiation and ultrasonic energy postharvest treatment on bioactive compounds and antioxidant activity of tomatoes during storage
title Effects of simultaneous UV-C radiation and ultrasonic energy postharvest treatment on bioactive compounds and antioxidant activity of tomatoes during storage
title_full Effects of simultaneous UV-C radiation and ultrasonic energy postharvest treatment on bioactive compounds and antioxidant activity of tomatoes during storage
title_fullStr Effects of simultaneous UV-C radiation and ultrasonic energy postharvest treatment on bioactive compounds and antioxidant activity of tomatoes during storage
title_full_unstemmed Effects of simultaneous UV-C radiation and ultrasonic energy postharvest treatment on bioactive compounds and antioxidant activity of tomatoes during storage
title_short Effects of simultaneous UV-C radiation and ultrasonic energy postharvest treatment on bioactive compounds and antioxidant activity of tomatoes during storage
title_sort effects of simultaneous uv c radiation and ultrasonic energy postharvest treatment on bioactive compounds and antioxidant activity of tomatoes during storage
url http://psasir.upm.edu.my/id/eprint/79623/1/Effects%20of%20simultaneous%20UV-C%20radiation%20and%20ultrasonic%20energy%20postharvest%20treatment%20on%20bioactive%20compounds%20and%20antioxidant%20activity%20of%20tomatoes%20during%20storage.pdf
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