Cited by 18Essential Oils and Antimicrobial ActivityPostharvest Quality and Shelf Life ManagementRadiation Effects and Dosimetry

Inhibition of mold growth on the surface of dried persimmons using combined treatments of UV-C light and clove oil

Vurmaz, Ayça Korkmaz, Gündüz, Gülten Tiryaki·2020·Innovative Food Science & Emerging Technologies

Abstract

The efficacy of clove oil, UV-C light and their combination for the inhibition of mold growth on the surface of dried persimmon fruits during the storage period of 28 days at 20 °C were investigated in this study. The inactivation kinetics of UV-C resistant mold cultures inoculated to dried persimmon surfaces were determined at UV-C doses in the range of 0.6–12.0 kJ/m². Disc diffusion and microdilution methods were used to evaluate the antifungal activity of the clove oil against Rhizopus oryzae, Alternaria tenuissima and Aspergillus niger previously isolated from dried persimmon fruits. Minimum inhibitory concentrations of clove essential oil against R. oryzae, A. tenuissima and A. niger were 1.56% (v/v) and the minimum fungicidal concentrations were 6.25% (v/v), 3.12% (v/v) and 6.25% (v/v), respectively. UV-C treatments showed limited reductions in the number of molds inoculated to dried persimmon discs regardless of the UV-C dose. Combined treatments of UV-C and clove oil resulted in maximum reductions of 0.64 and 0.68 log cfu/cm² for R. oryzae and A. niger, respectively. Sensory evaluation results showed that all the treatments could maintain the appearance and texture of samples, moreover the highest sensory evaluation score was obtained for the clove oil (1.56% v/v) treatments in terms of flavour and overall acceptability. Application of clove oil (1.56% v/v) to dried persimmon fruits was extended the product shelf life at least 28 days. By using combination of UV-C light and clove oil treatments, the inhibition of mold growth on the surface of dried persimmons has been achieved.Ultraviolet technology is a non-thermal food processing technology as an alternative to chemicals while maintaining the quality of the food. The results obtained in this study demonstrate that combined treatment of UV-C and clove oil are a promising technology to inhibit fungal growth as well as to enhance sensory quality of dried persimmon fruits. Application of clove oil to dried persimmon fruits produced a novel and value-added product that can be preferred by consumers.

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Crossref · 10.1016/j.ifset.2020.102336

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Authors
Vurmaz, A. K., & Gündüz, G. T.
Affiliations
Ege University (TR)
Corresponding author
Gündüz, Gülten Tiryaki
Venue
Innovative Food Science & Emerging Technologies
Publisher
Elsevier BV
Published
2020-05
Volume
61
Pages
102336
ISSN
1466-8564 (ISSN-L)
OpenAlex
W3011343628
Cited by
18
References
51
Citations by year
2025: 3 · 2024: 4 · 2023: 1 · 2022: 5 · 2021: 4 · 2020: 1
FWCI
1.78
Type
journal article
Language
en
Open access
closed
Locations
Innovative Food Science & Emerging Technologies (publishedVersion)
Funders
Ege Üniversitesi (2017 MUH 024)
Topics
  • Life Sciences › Agricultural and Biological Sciences › Food Science › Essential Oils and Antimicrobial Activity
  • Life Sciences › Agricultural and Biological Sciences › Plant Science › Postharvest Quality and Shelf Life Management
  • Life Sciences › Agricultural and Biological Sciences › Food Science › Radiation Effects and Dosimetry
Keywords
dried persimmon, mold inhibition, UV-C light, clove oil, essential oils, Rhizopus oryzae, Alternaria tenuissima, Aspergillus niger, antifungal activity, minimum inhibitory concentration, minimum fungicidal concentration, combination therapy, shelf life extension, sensory quality, non-thermal food processing, fruit storage

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