Research Publications (Food Safety)

Campylobacter jejuni, one of the most common causes of gastroenteritis worldwide, is transmitted to humans through poultry. We previously reported that Lactobacillus gasseri SBT2055 (LG2055) reduced C. jejuni infection in human epithelial cells in vitro and inhibited pathogen colonization of chickens in vivo.

Solid bar microextraction (SBME), followed by liquid chromatography with fluorescence detection (HPLC-FLD), for the quantification of ochratoxin A in wheat and maize was developed. Ground wheat and maize grains were extracted with acetonitrile-water-acetic acid (79:20:1, v/v/v), followed by defatting with cyclohexane, and subjected to SBME-LC-FLD analysis.

e-First Articles.

Traceability practices and their compliances in low grown orthodox black tea manufacturing process were examined, while proposing possible solutions for identified major drawbacks. The physical traceability in supply chain was considered one step forward and one step backward from the point of manufacturing, starting from auction/buyer back to supplier. Randomized stratified sampling was used.

A novel method for sample preparation using an ozone-based process was optimized for the determination of Cd and Pb using electrothermal atomic absorption spectrometry (ET-AAS). Advanced oxidation processes, which involve the in situ generation of highly potent chemical oxidants, are a promising technology to accelerate the oxidation at room temperature and the degradation of organic matter. A certified reference material of spinach leaves was used to evaluate the methodology.

This study was aimed to evaluate the effect of pre-treatments and drying methods on the chemical composition (proximate composition, β-carotene content and phytochemicals), functional properties, microbial and sensory of orange-fleshed sweet potato flour and porridge.

The main purpose of the study was to investigate the effect of solution on the shelf life and quality of banana slices and development of high quality dehydrated banana products. Ripe banana collected from local market cut into 3, 5 and 7 mm slices. Solution effect was assessed using honey, sugar and mixed (honey plus sugar, 1:1) solution. The osmosis samples were dried in a mechanical drier at 65°C for 24 hour up to moisture content 14.6%.

A decontamination technique based on the utilization of a lipopeptide biosurfactant extracted from corn steep liquor has been developed to eliminate polycyclic aromatic hydrocarbons (PAHs) from sewage sludge. High concentrations of PAHs were used during experiments observing that 408.3 mg/kg of naphthalene was almost completely mobilized and biodegraded, only 1.7% of naphthalene remained in the sewage sludge, whereas anthracene and pyrene were reduced up to 51.7 and 69.4%, respectively.

Publication date: February 2016
, Volume 60
Author(s): Xuejie Zhang, Xuetong Fan, Daniel K.Y. Solaiman, Richard D. Ashby, Zengshe Liu, Sudarsan Mukhopadhyay, Ruixiang Yan

Publication date: February 2016
, Volume 60
Author(s): Flávia Beatriz Custódio, Karine Helena Theodoro, Maria Beatriz A. Gloria

Foodborne Pathogens and Disease , Vol. 0, No. 0.

Microwave is an effective means to deliver energy to food through polymeric package materialsoffering potential for developing short-time in-package sterilization and pasteurization processes. The complex physics related to microwave propagation and microwave heating require special attention to the design of process systems and development of thermal processes in compliance with regulatory requirements for food safety.

Hasmik Hayrapetyan, Marcel Tempelaars, Masja Nierop Groot, Tjakko Abee

Hsin-Tzu Liu, Sung-Ho Chen, Michael B. Chancellor, Hann-Chorng Kuo

Objectives

To evaluate whether botulinum toxin A (BoNT-A) injection and Lipotoxin (liposomes with 200 U of BoNT-A) instillation target different proteins, including P2X3, synaptic vesicle glycoprotein 2A, and SNAP-25, in the bladder mucosa, leading to different treatment outcomes.

Materials and Methods

Abstract

Spatiotemporal regulation of cell polarity plays a role in many fundamental processes in bacteria and often relies on ‘landmark’ proteins which recruit the corresponding clients to their designated position. Here, we explored the localization of two multi-protein complexes, the polar flagellar motor and the chemotaxis array, in Shewanella putrefaciens CN-32. We demonstrate that polar positioning of the flagellar system, but not of the chemotaxis system, depends on the GTPase FlhF.

Publication date: 2 December 2015
, Volume 214
Author(s): Sigrun J. Hauge, Truls Nesbakken, Birgitte Moen, Ole-Johan Røtterud, Sissel Dommersnes, Ole Nesteng, Øyvin Østensvik, Ole Alvseike

Yukihiko Hiroshima, Ming Zhao, Yong Zhang, Nan Zhang, Ali Maawy, Takashi Murakami, Sumiyuki Mii, Fuminari Uehara, Mako Yamamoto, Shinji Miwa, Shuya Yano, Masashi Momiyama, Ryutaro Mori, Ryusei Matsuyama, Takashi Chishima, Kuniya Tanaka, Yasushi Ichikawa, Michael Bouvet, Itaru Endo, Robert M. Hoffman

Madelaine Norström, Anja Bråthen Kristoffersen, Franziska Sophie Görlach, Karin Nygård, Petter Hopp

Trivalent organoarsenic compounds are far more toxic than either pentavalent organoarsenicals or inorganic arsenite. Many microbes methylate inorganic arsenite (As(III)) to more toxic and carcinogenic methylarsenite (MAs(III)). Additionally, monosodium methylarsenate (MSMA or MAs(V)) has been used widely as an herbicide and is reduced by microbial communities to MAs(III).

Publication date: February 2016
, Volume 60
Author(s): Rui Yin, Yajuan Sun, Shuang Yu, Yi Wang, Meiping Zhang, Yawei Xu, Jian Xue, Na Xu

Adina C. Bosch, Bernadette O'Neill, Gunnar O. Sigge, Sven E. Kerwath, Louwrens C. Hoffman

Publication date: October 2015
, Volume 223
Author(s): Nahed Yehia, Abdel-Satar Arafa, Ahmed Abd El Wahed, Ahmed A. El-Sanousi, Manfred Weidmann, Mohamed A. Shalaby

Publication date: February 2016
, Volume 60
Author(s): Monica Mattarozzi, Marco Milioli, Federica Bianchi, Antonella Cavazza, Silvia Pigozzi, Anna Milandri, Maria Careri