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Article

Curcumin-Based Photodynamic Sterilization for Preservation of Fresh-Cut Hami Melon

by
Yilin Lin
1,†,
Jiamiao Hu
1,†,
Shiyang Li
1,
Siti Sarah Hamzah
2,
Huiqin Jiang
1,
Arong Zhou
1,
Shaoxiao Zeng
1 and
Shaoling Lin
1,*
1
College of Food Science, Fujian Agriculture and Forestry University, Fuzhou 350002, Fujian, China
2
Institute for Medical Research, Jalan Pahang, 50588 Kuala Lumpur, Malaysia
*
Author to whom correspondence should be addressed.
†
These authors contributed equally to this work.
Molecules 2019, 24(13), 2374; https://doi.org/10.3390/molecules24132374
Submission received: 24 May 2019 / Revised: 23 June 2019 / Accepted: 25 June 2019 / Published: 27 June 2019
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Abstract

Fresh-cut fruits and vegetables are the main sources of foodborne illness outbreaks with implicated pathogens such as Escherichia coli O157:H7, Salmonella, and Listeria monocytogenes. This study aimed at investigating the influence of two key parameters (concentration of curcumin and illumination time) on the effects of curcumin-based photodynamic sterilization on the preservation of fresh-cut Hami melons. The results indicated that illumination with 50 μmol/L curcumin for 60 min using a blue LED lamp reduced the total aerobic microorganism count by ~1.8 log CFU/g in fresh-cut Hami melons. Besides this, the effects of photodynamic sterilization on the soluble solids content, color, water content, firmness, and sensory indices of the fresh-cut Hami melons were also evaluated. Compared to the control group, photodynamic sterilization can effectively delay the browning rate and maintain the luminosity, firmness, water content, and soluble solids content of fresh-cut Hami melon. The sensory quality was indeed preserved well after 9 days of storage in a fridge. These results showed that photodynamic sterilization is an effective and promising technology to prolong the shelf life of fresh-cut Hami melons.
Keywords: Hami melon; curcumin; photodynamic; colony number; storage quality Hami melon; curcumin; photodynamic; colony number; storage quality

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MDPI and ACS Style

Lin, Y.; Hu, J.; Li, S.; Hamzah, S.S.; Jiang, H.; Zhou, A.; Zeng, S.; Lin, S. Curcumin-Based Photodynamic Sterilization for Preservation of Fresh-Cut Hami Melon. Molecules 2019, 24, 2374. https://doi.org/10.3390/molecules24132374

AMA Style

Lin Y, Hu J, Li S, Hamzah SS, Jiang H, Zhou A, Zeng S, Lin S. Curcumin-Based Photodynamic Sterilization for Preservation of Fresh-Cut Hami Melon. Molecules. 2019; 24(13):2374. https://doi.org/10.3390/molecules24132374

Chicago/Turabian Style

Lin, Yilin, Jiamiao Hu, Shiyang Li, Siti Sarah Hamzah, Huiqin Jiang, Arong Zhou, Shaoxiao Zeng, and Shaoling Lin. 2019. "Curcumin-Based Photodynamic Sterilization for Preservation of Fresh-Cut Hami Melon" Molecules 24, no. 13: 2374. https://doi.org/10.3390/molecules24132374

APA Style

Lin, Y., Hu, J., Li, S., Hamzah, S. S., Jiang, H., Zhou, A., Zeng, S., & Lin, S. (2019). Curcumin-Based Photodynamic Sterilization for Preservation of Fresh-Cut Hami Melon. Molecules, 24(13), 2374. https://doi.org/10.3390/molecules24132374

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