Effect of cold atmospheric pressure plasma-activated water on the microbial safety of Korean rice cake

Publication date: Available online 3 December 2019Source: LWTAuthor(s): Jin-Young Han, Won-Jae Song, Joo Hyun Kang, Sea C. Min, Sangheum Eom, Eun Jeong Hong, Seungmin Ryu, Seongbong Kim, Sangwoo Cho, Dong-Hyun KangAbstractWe evaluated the effect of plasma-activated water (PAW) on the populations of foodborne pathogens and food-spoilage microorganisms on Korean rice cake. PAW was produced by treating distilled water with two atmospheric dielectric-barrier discharges (51.7 W, 14.4 kHz, air discharge) for 20 min. The inactivation effect of PAW on indigenous microorganism and inoculated Escherichia coli O157:H7, Salmonella Typhimurium, Listeria monocytogenes, Penicillium chrysogenum and Candida albicans on Korean rice cake were measured and their effect on the color and texture values of the samples were determined. PAW treatment for 20 min reduced the numbers of the three foodborne pathogens by about 2.0 log CFU/g. PAW treatment for 20 min reduced the numbers of total aerobes, P. chrysogenum, and C. albicans by 2.78, 1.97, and 1.00 log CFU/g, respectively. The antimicrobial effect of PAW was not significantly different from 0.2 ppm of sodium hypochlorite solution, which is used in Korean rice cake production. PAW treatment did not affect the color, texture, or pH of Korean rice cake. Therefore, PAW treatment can be used as an alternative method to reduce safety risk and spoilage of Korean rice cake without deteriorating its quality.
Source: LWT Food Science and Technology - Category: Food Science Source Type: research

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Publication date: 15 March 2020Source: Journal of Molecular Structure, Volume 1204Author(s): Duygu Şahin Gül, Hatice Ogutcu, Zeliha HayvalıAbstractTwo different series of crown ether compounds (4-11) were synthesized by the reactions of 4′,5′-bis(bromomethyl)benzo-15-crown-5 (3) and 4′-amino-benzo-15-crown-5 with hydroxycoumarin and chromone derivatives. Coumarin-crown ether compounds (4 and 5) were synthesized by the reactions of 4′,5′-bis(bromomethyl)benzo-15-crown-5 (3) with 4-hydroxycoumarin and 7-hydroxycoumarin. Chromone-crown ether compounds (6-11), were synthesized by the conden...
Source: Journal of Molecular Structure - Category: Molecular Biology Source Type: research
CONCLUSIONS: In vitro antimicrobial activity showed that the suspension of ZNPs with 250 ppm concentration could effectively cause a proper reduction and inhibition in the growth of both Gram-positive and Gram-negative microorganisms. Therefore, the results revealed the efficacy of the antibacterial properties of synthesized ZNPs suspension in aqueous media. PMID: 31847595 [PubMed - as supplied by publisher]
Source: Current Eye Research - Category: Opthalmology Authors: Tags: Curr Eye Res Source Type: research
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Source: Frontiers in Pharmacology - Category: Drugs & Pharmacology Source Type: research
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Source: Frontiers in Microbiology - Category: Microbiology Source Type: research
Conclusion Lactobacillus pentosus was the predominant species found at industrial scale in Spanish table olives biofilms, albeit certain genotypes of L. plantarum were also detected. At genotype level, biodiversity was higher in the Spanish-style table olive biofilms than in those of directly brined olives. The multivariate analysis based on technological and probiotic data showed that the main 16 genotypes obtained could be clustered in 3 great phenotypes, with some strains with potential application as multifunctional starters (especially L. pentosus Lp13 and LpG1 genotypes). Data obtained in the present study showed th...
Source: Frontiers in Microbiology - Category: Microbiology Source Type: research
Abstract We used a green sol-gel synthesis method to fabricate a novel nanoporous copper aluminosilicate (CAS) material. Nanoporous CAS was characterized using X-ray powder diffraction (XRD), field emission transmission and scanning electron microscopies (FE-TEM/FE-SEM), Fourier transform infrared (FTIR) spectroscopy, and optical analyses. The CAS was also evaluated for use as a promising disinfectant for the inactivation of waterborne pathogens. The antimicrobial action and minimum inhibitory concentration (MIC) of this CAS disinfectant were determined against eight microorganisms (Escherichia coli, Salmonella en...
Source: Environmental Science and Pollution Research International - Category: Environmental Health Authors: Tags: Environ Sci Pollut Res Int Source Type: research
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Source: LWT Food Science and Technology - Category: Food Science Source Type: research
Publication date: Available online 8 November 2018Source: Food ControlAuthor(s): Song Zhang, Jian Xiong, Wenyong Lou, Zhengxiang Ning, Denghui Zhang, Jiguo YangAbstractsTriglycerol monolaurate (TGML) was widely used as an emulsifier in food, cosmetic and other products, and was generally accepted as safe. In the study, the inhibitory activity of TGML against common foodborne pathogens, Escherichia coli, Salmonella typhimurium, Staphylococcus aureus, Listeria monocytogenes, Candida albicans and Cryptococcus neoformans was investigated with comparison to sodium benzoate and potassium sorbate. The minimum inhibitory concentra...
Source: Food Control - Category: Food Science Source Type: research
Publication date: August 2018Source: Journal of Environmental Chemical Engineering, Volume 6, Issue 4Author(s): Mohamed Azab El-Liethy, Khalid Z. Elwakeel, Mohammed S. AhmedAbstractMagnetic disinfectants were achieved through the polymerization of thiourea and formaldahyde in the presence of magnetite nano particles (MTUF), the as-prepared MTUF was loaded with Ag(I) or Au(III). The obtained disinfectants (MTUF-Ag and MTUF-Au) were test for some selected pathogenic strains deactivation. The toxicity of MTUF before and after Ag(I) or Au(II) loading was estimated. The antimicrobial activity tests of MTUF-Ag and MTUF-Au were c...
Source: Journal of Environmental Chemical Engineering - Category: Chemistry Source Type: research
LITFL • Life in the Fast Lane Medical Blog LITFL • Life in the Fast Lane Medical Blog - Emergency medicine and critical care medical education blog aka Tropical Travel Trouble 009 The diagnosis of HIV is no longer fatal and the term AIDS is becoming less frequent. In many countries, people with HIV are living longer than those with diabetes. This post will hopefully teach the basics of a complex disease and demystify some of the potential diseases you need to consider in those who are severely immunosuppressed. While trying to be comprehensive this post can not be exhaustive (as you can imagine any patient with ...
Source: Life in the Fast Lane - Category: Emergency Medicine Authors: Tags: Clinical Cases Tropical Medicine AIDS art cryptococcoma cryptococcus HIV HIV1 HIV2 PEP PrEP TB toxoplasma tuberculoma Source Type: blogs
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