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P. Michael Davidson
University of Tennessee
97Publications
27H-index
3,022Citations
Publications 97
Newest
Published on Mar 1, 2019in Journal of Food Science2.08
Sukriti Ailavadi (UT: University of Tennessee), P. Michael Davidson27
Estimated H-index: 27
(UT: University of Tennessee)
+ 1 AuthorsDoris H. D'Souza23
Estimated H-index: 23
(UT: University of Tennessee)
Human noroviruses (HNoVs) cause significant gastrointestinal disease outbreaks worldwide. Tulane virus (TV) is a cultivable HNoV surrogate widely used to determine control measures against HNoVs. The objective of this study was to determine the heat inactivation kinetics (D- and z-values) of TV in cell-culture media and on spiked homogenized spinach using the first-order and Weibull models. TV in cell-culture media at approximately 7 log PFU/mL (PFU?plaque forming unit) in 2-mL glass vials was h...
Published on Jun 1, 2017in Journal of Food Protection1.56
Yue Zhang19
Estimated H-index: 19
,
Huaiqiong Chen11
Estimated H-index: 11
+ 2 AuthorsQixin Zhong31
Estimated H-index: 31
ABSTRACT The objective of this study was to evaluate the potential of cinnamon oil emulsions as alternative washing solutions to improve the microbial safety of carrots. Whey protein concentrate (WPC), gum arabic (GA), lecithin, and their combinations were used to prepare cinnamon oil emulsions. The emulsions were characterized for their hydrodynamic diameter (Dh) during 7 days of storage and their antimicrobial activity against cocktails of Salmonella enterica, Escherichia coli O157:H7, and Lis...
Published on Apr 15, 2017in Applied and Environmental Microbiology4.08
Haoshu Zhang2
Estimated H-index: 2
(PSU: Pennsylvania State University),
Edward G. Dudley35
Estimated H-index: 35
(PSU: Pennsylvania State University)
+ 1 AuthorsFederico Harte21
Estimated H-index: 21
(PSU: Pennsylvania State University)
Lecithin is a natural emulsifier used in a wide range of food and non-food applications to improve physical stability with no known bioactive effects. In this study, the effect of lecithin on the antimicrobial performance of a constant eugenol concentration was tested against three Escherichia coli strains (C600, 0.1229, and O157:H7 strain ATCC 700728). This was the first study focusing on lecithin at concentrations below those commonly used in foods to improve the stability of oil in water emul...
Published on Mar 18, 2017
P. Michael Davidson27
Estimated H-index: 27
(UT: University of Tennessee)
Published on Mar 1, 2017in Food Control4.25
Jia Xue4
Estimated H-index: 4
(UT: University of Tennessee),
P. Michael Davidson27
Estimated H-index: 27
(UT: University of Tennessee),
Qixin Zhong31
Estimated H-index: 31
(UT: University of Tennessee)
Abstract Thymol is an effective antimicrobial and is to be encapsulated for use in liquid foods. Previously, novel thymol nanoemulsions have been prepared with the emulsifier combination of gelatin-A (acid-hydrolyzed) or -B (base-hydrolyzed) and lecithin. The objective of this study was to characterize the antimicrobial activity of thymol nanoemulsified by gelatin and soy lecithin, using milk and cantaloupe juice as two model food systems at 21 °C. Nanoemulsions were overall more effective than ...
Published on Jan 1, 2017
Sean Pendleton , P. Michael Davidson27
Estimated H-index: 27
(UT: University of Tennessee)
Recently, there has been a growing concern across the globe that humans are approaching the end of the antibiotic era. However, this is not a new idea; concern about antibiotic resistance has been around for many years. As more and more microorganisms become resistant to antibiotics, there are fewer and fewer options to treat infections. To develop control measures for microbial antibiotic resistance, the scientific community must have information about the extent of the problem, the mechanism o...
Published on Jan 1, 2017in Journal of Food Protection1.56
P. Michael Davidson27
Estimated H-index: 27
,
Joseph F. Frank42
Estimated H-index: 42
+ 1 AuthorsElliot T. Ryser32
Estimated H-index: 32
Published on Oct 1, 2016in Lwt - Food Science and Technology3.71
Qiumin Ma9
Estimated H-index: 9
(UT: University of Tennessee),
P. Michael Davidson27
Estimated H-index: 27
(UT: University of Tennessee)
+ 1 AuthorsQixin Zhong31
Estimated H-index: 31
(UT: University of Tennessee)
Abstract The objective of this work was to study if ethylenediaminetetraacetate (EDTA) could enhance the antimicrobial activity of lauric arginate (LAE) and cinnamon oil (CO) combination, and the possible mechanisms. With 500 mg/L of EDTA, 5 mg/L of LAE and 200 mg/L of CO showed an increased log reduction of Escherichia coli O157: H7, Salmonella Enteritidis, and Listeria monocytogenes by ca. 4, 5, and 1 log CFU/mL, respectively. EDTA at 500 mg/L significantly increased the permeability of outer ...
Published on Oct 1, 2016in International Journal of Food Microbiology4.01
Qiumin Ma9
Estimated H-index: 9
(UT: University of Tennessee),
Yue Zhang19
Estimated H-index: 19
(UT: University of Tennessee)
+ 2 AuthorsQixin Zhong31
Estimated H-index: 31
(UT: University of Tennessee)
Abstract Cantaloupes are susceptible to microbiological contamination in pre- or postharvest environments. Novel intervention strategies, such as antimicrobial coatings, are needed to improve the microbiological safety of cantaloupes. The objective of this study was to prepare whole cantaloupes coated with mixtures containing chitosan, lauric arginate (LAE), cinnamon oil (CO), and ethylenediaminetetraacetic acid (EDTA) and determine survival characteristics of inoculated foodborne pathogens duri...
Published on Sep 1, 2016in Food Control4.25
Yue Zhang19
Estimated H-index: 19
(UT: University of Tennessee),
Qiumin Ma9
Estimated H-index: 9
(UT: University of Tennessee)
+ 2 AuthorsQixin Zhong31
Estimated H-index: 31
(UT: University of Tennessee)
Abstract Emulsions of organic essential oils may be used as postharvest alternative washing solutions in fresh produce production. In the present study, organic thyme oil was emulsified with whey protein concentrate, gum arabic, lecithin, or their equal mass mixtures without using specialized equipment. The stability of these emulsions was monitored by measuring hydrodynamic diameter during ambient storage up to 7 days. The antimicrobial activity of these emulsions against Escherichia coli O157:...
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