Research Publications (Food Safety)

Author(s): Seungbaek Lee, Youngho Kim, Jinhee Choi

Author(s): Yuxuan Zhang, Jian Lu, Jun Wu, Jianhua Wang, Yongming Luo

Two-dimensional HPLC (2D-HPLC) recently has received great attention due to providing high resolving power and higher peak capacities than that of 1D-HPLC, especially dealing with a wide spectrum of sample matrices containing several components. In this work, an on-line heart-cutting two-dimensional liquid chromatography (2D-LC) method was developed using monolithic columns coupled with reversed-phase liquid chromatography (RPLC).

In this study, magnetic graphene nanocomposite Fe3O4/rGO was synthesized by facile one-pot solvothermal method. The nanocomposite was successfully used as magnetic solid phase extraction (MSPE) adsorbents for the determination of aflatoxins in edible vegetable oils through the π–π stacking interactions. MSPE parameters including the amount of adsorbents, extraction and desorption time, washing conditions, and the type and volume of desorption solvent were optimized.

Author(s): Tingting Li, Xiaojia Sun, Haitao Chen, Binbin He, Yongchao Mei, Dangfeng Wang, Jianrong Li

Rift Valley fever (RVF) is a vector‐borne viral disease of domestic ruminants, camels and man, characterized by widespread abortions and neonatal deaths in animals, and flu‐like symptoms, which can progress to hepatitis and encephalitis in humans. The disease is endemic in Africa, Saudi Arabia and Yemen, and outbreaks occur after periods of high rainfall, or in environments supporting the proliferation of RVF virus (RVFV) infected mosquito vectors.

Avian influenza H7N9 viruses have caused five epidemic waves of human infections since the first human cases were reported in 2013. In 2016, the initial low pathogenic avian influenza (LPAI) H7N9 viruses became highly pathogenic, acquiring multi‐basic amino acids at the hemagglutinin cleavage site. This highly pathogenic avian influenza (HPAI) H7N9 viruses have been detected in poultry and humans in China, causing concerns of a serious threat to global public health.

The impact of cerium oxide nanoparticles, bulk cerium oxide and ionic cerium nitrate on the plant development as well as the uptake and further translocation of Cu, Mn, Zn and Fe by sugar pea (Pisum sativum L.) was investigated. Plants were cultivated in the laboratory pot experiments using the modified Hoagland solutions supplemented with cerium compounds at the 200 mg L−1 Ce level.

Author(s): N. Deepa, M.Y. Sreenivasa

by Po-Yao Chuang, Tien-Yu Yang, Tsan-Wen Huang, Yao-Hung Tsai, Kuo-Chin Huang, Hsu-Huei Weng

Background

Vibrio vulnificus necrotizing skin and soft tissue infections (VNSSTIs) are associated with a high mortality rate that varies remarkably with host susceptibility. Hepatic disease (HD) is considered the key risk factor for high VNSSTIs incidence and mortality; however, there is limited evidence in the literature to support this observation.

Methodology

by Khushbu Salian, Vladimir Strezov, Tim J. Evans, Mark Taylor, Peter F. Nelson Industrial sources, including iron ore sintering, municipal waste incineration and non-ferrous metal processing have been prominent emitters of dioxins to the environment. With the expanding industrial sectors, many international conventions were established in order to reduce the emission of dioxins in the past two decades.

Author(s): E. Garcia-Cela, F.J. Gari Sanchez, M. Sulyok, C. Verheecke-Vaessen, A. Medina, R. Kruska, N. Magan

Author(s): M.J. Fraqueza, C. Martins, L.T. Gama, M.H. Fernandes, M.J. Fernandes, M.H.L. Ribeiro, B.R. Hernando, A.S. Barreto, A.J.I. Alfaia

Author(s): Pan Wu, Yonghe Gu, Rou Zhao, Yaxin Liu, Yanling Wang, Guozhong Lv, Zhenghai Li, Yajing Bao

Author(s): Birgitta Maria Kunz, Felicitas Wanko, Sabine Kemmlein, Arnold Bahlmann, Sascha Rohn, Ronald Maul

Author(s): Jitender P. Dubey, Dolores E. Hill, Valsin Fournet, Diane Hawkins-Cooper, Camila K. Cerqueira-Cézar, Fernando H.A. Murata, Shiv K. Verma, Oliver C.H. Kwok, Surabhi Rani, Jorrell Fredericks, Brandon Adams, Jeffrey L. Jones, Ryan E. Wiegand, Yuqing Ying, Miao Guo, Chunlei Su, Abani K. Pradhan

Author(s): Vaigundan Dhayabaran, Divya Chidambaram, Patnam R. Krishnaswamy

Author(s): Mustafa Sadek, Laurent Poirel, Patrice Nordmann

Author(s): Shihao Chen, Tongwang luo, Qi Yu, Wenxuan Dong, Huiyan Zhang, Hui Zou

Shiga toxin‐producing Escherichia coli (STEC) is a zoonotic pathotype associated with human gastrointestinal disease that may progress to severe complications. Ruminants, especially cattle, are the main reservoirs of STEC from which they can contaminate the environment and foods of animal or vegetable origin. Besides Shiga toxin, other virulence factors are involved in STEC virulence. O157:H7 remains the most frequent serotype associated with disease.

Streptococcus agalactiae is a major pathogen causing streptococcosis. To prevent and control this bacterial disease, antagonistic bacteria have become a new research hotspot. This study evaluated the probiotic potential of Bacillus velezensis LF01 strain, which is antagonistic to S. agalactiae. The active compounds produced by LF01 showed antimicrobial activity against a broad spectrum of fish pathogens, including S.

Concentrations of mercury and other heavy metals were measured in soils surrounding the Wuda Coalfield, Inner Mongolia where underground coal fires are regarded as an important contamination source. Soil samples at the downwind direction were nearly all enriched mercury in surface layers, with their concentrations ~ 10 times higher than those from upwind soils.

Bisphenol A (BPA) is a high production volume chemical widely used in plastics, food packaging, and many other products. It is well known that endocrine-disrupting chemicals might be harmful to human health due to interference with normal hormone actions. Recent studies report widespread usage and exposure to many BPA-like chemicals (BPs) that are structurally or functionally similar to BPA. However, the biological actions and toxicity of those BPs are still relatively unknown.

Clostridium perfringens (C. perfringens) is Gram-positive anaerobic, spore-forming rod-shaped bacterial pathogen that is widely distributed in nature. This bacterium is known as the causative agent of a foodborne illness and of gas gangrene. While the major virulence factors are the α-toxin and perfringolysin O (PFO) produced by type A strains of C. perfringens, the precise mechanisms of how these toxins induce the development of gas gangrene are still not well understood.