Evaluation of the photocatalytic inactivation efficiency of dairy bacteriophages

被引：22

作者：

Briggiler Marco, Mariangeles ^{[2
]}

del Lujan Quiberoni, Andrea ^{[2
]}

Carlos Negro, Antonio ^{[1
]}

Alberto Reinheimer, Jorge ^{[2
]}

Mario Alfano, Orlando ^{[1
]}

机构：

[1] Inst Desarrollo Tecnol Ind Quim INTEC UNL CONICET, RA-3000 Sabta Fe, Argentina

[2] Inst Lactol Ind INLAIN, UNL, CONICET, RA-3000 Santa Fe, Argentina

来源：

CHEMICAL ENGINEERING JOURNAL | 2011年 / 172卷 / 2-3期

关键词：

Photocatalytic efficiency; Titanium dioxide; Bacteriophage inactivation; Dairy industry; TITANIUM-DIOXIDE; ESCHERICHIA-COLI; PHAGES; DISINFECTION; TIO2;

D O I：

10.1016/j.cej.2011.07.012

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

In this paper, the photocatalytic inactivation efficiency of phages infecting lactic acid bacteria (LAB) was evaluated. Ten bacteriophages (ATCC 15807-B1, 832-B1, 0241, 204, 342, MLC-A, J-1, OBJ, CND and QF9) dispersed on TiO2-coated plates were exposed to UV-A radiation during different periods of time. Two kinds of efficiencies were defined and assessed: (i) the apparent photonic yield and (ii) the quantum yield of inactivation. Considering all phages studied in this work, dissimilar values of inactivation efficiencies were found: the results differ in more than one order of magnitude. The highest inactivation efficiency was found for the bacteriophage J-1, whereas the lowest one was obtained for the phage 342. The data presented in this work can provide useful information to design innovative and effective treatments to be applied in laboratories and industrial plants which handle LAB strains. (C) 2011 Elsevier B.V. All rights reserved.

引用

页码：987 / 993

页数：7

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