• Title/Summary/Keyword: $^{35}S$

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Comparative Study of Change in Salmonella Enteritidis and Salmonella Typhimurium Populations in Egg white and Yolk (난백과 난황에서 Salmonella Enteritidis 와 Salmonella Typhimurium 수 변화 비교연구)

  • Moon, Hye Jin;Lim, Jeong Gyu;Yoon, Ki Sun
    • Journal of Food Hygiene and Safety
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    • v.31 no.5
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    • pp.342-348
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    • 2016

  • The objective of this study was to compare the change of S. Enteritidis with S. Typhimurium populations in liquid egg products. S. Enteritidis or S. Typhimurium was inoculated into egg white and egg yolk and stored at 8, 10, 15, 25, and $35^{\circ}C$, respectively. In egg white, no growth of S. Enteritidis and S. Typhimurium was observed at 8, 10, 15, and $35^{\circ}C$, while both S. Enteritidis and S. Typhimurium in egg white stored grew more than 1 log CFU/ml after 50 hours storage at $25^{\circ}C$. In egg yolk, there was no growth of S. Enteritidis and S. Typhimurium at $8^{\circ}C$ but growth of both strains was observed at 10, 15, 25, and $35^{\circ}C$. Since growth of S. Enteritidis and S. Typhimurium was only observed in egg yolk, primary growth models for both strains were developed using modified Gompertz equation and then secondary models for lag time (LT), specific growth rate (SGR), and maximum population density (MPD) were developed as a function of temperature. At all temperatures, more rapid growth of S. Enteritidis than S. Typhimurium was observed in egg yolk, indicating the greater risk of S. Enteritidis than S. Typhimurium in egg products. In conclusion, the results indicate that temperature control less than $8^{\circ}C$ is very important to ensure safety of liquid egg products, especially liquid egg yolk.

  • https://doi.org/10.13103/JFHS.2016.31.5.342 인용 PDF KSCI

The Synthesis and Crystal Structure of (${\eta}^5-Cp^*$)(Ir-B3)(1,2-S,S($CH_2SiMe_3$)-o-carborane)($C_{16}H_{35}B_{10}IrS_2Si$) ((${\eta}^5-Cp^*$)(Ir-B3)(1,2-S,S($CH_2SiMe_3$)-o-carborane) ($C_{16}H_{35}B_{10}IrS_2Si$)의 합성 및 결정구조)

  • Cho, Sung-Il
    • Korean Journal of Crystallography
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    • v.18 no.1_2
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    • pp.1-6
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    • 2007

  • An Organometallic compound, $C_{16}H_{35}B_{10}IrS_2Si$, was synthesized from o-carborane, $Cp^*Ir(S_2C_2B{10}H_{10})$, and $Me_3SiCHN_2$. The molecular structure of this complex has been determined by X-ray diffraction. Crystallographic data : monoclinic, space group $P2_1/n$, $a=10.1986(12)\;{\AA}$, $b=14.834(5)\;{\AA}$, $c=17.139\;{\AA}$, ${\beta}=92.24(2)^{\circ}$, Z=4, $V=2591.0(14)\;{\AA}^3$. The structure was solved by direct methods and refined by full-matrix leat-squares methods to give a model with a reliability factor R=0.053 for 5080 reflections.

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