Inactivation of E. coli and L. innocua in milk by a thin film UV-C reactor modified with flow guiding elements (FGE)

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Tarih

2021

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Dergi ISSN

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Yayıncı

Elsevier B.V.

Erişim Hakkı

info:eu-repo/semantics/closedAccess

Özet

In this study the suitability of a thin-film reactor (TFR) equipped with special flow guiding elements (FGE) was examined to analyse its capability to inactivate microorganisms in milk. Experiments were carried out with UHT-milk inoculated with Escherichia coli (E. coli), DH5? and Listeria innocua (L. innocua) WS 2258. Furthermore, the inactivation of microorganisms originally occurring in raw milk was investigated. E. coli, DH5? and L. innocua serving as biodosimeter were reduced by 4.58-log and 3.19-log, respectively. In milk, the original microorganisms showed a 4-log reduction. Without FGE the reduction was below 0.13-log. Thus, it can be derived that the efficacy of a UV-C thin-film reactor processing absorptive media like milk can be highly improved using FGE. © 2021 Elsevier B.V.

Açıklama

Anahtar Kelimeler

Escherichia coli, Listeria innocua, Milk, Thin film reactor, Ultraviolet, UV-C, element, flow guiding element, potassium iodide, stainless steel, unclassified drug, absorption, Article, bioprocess, chemical analysis, chemical reaction, dosimetry, Escherichia coli, heat treatment, inoculation, Listeria innocua, nonhuman, optical density, raw milk, ultraviolet C radiation, animal, bacterial count, chemistry, devices, Escherichia coli, food control, food irradiation, growth, development and aging, Listeria, microbiology, microflora, milk, procedures, radiation response, ultraviolet radiation, Animals, Colony Count, Microbial, Escherichia coli, Food Irradiation, Food Microbiology, Listeria, Microbiota, Milk, Ultraviolet Rays

Kaynak

International Journal of Food Microbiology

WoS Q Değeri

Q1

Scopus Q Değeri

Q1

Cilt

343

Sayı

Künye